alvinalexander.com | career | drupal | java | mac | mysql | perl | scala | uml | unix  

Android example source code file (ActivityManagerService.java)

This example Android source code file (ActivityManagerService.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" TM.

Java - Android tags/keywords

android, app, application, arraylist, content, debug_switch, hashmap, historyrecord, ibinder, intent, iterator, my_pid, os, processrecord, remoteexception, securityexception, servicerecord, string, tag, util

The ActivityManagerService.java Android example source code

/*
 * Copyright (C) 2006-2008 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.server.am;

import com.android.internal.os.BatteryStatsImpl;
import com.android.server.AttributeCache;
import com.android.server.IntentResolver;
import com.android.server.ProcessMap;
import com.android.server.ProcessStats;
import com.android.server.SystemServer;
import com.android.server.Watchdog;
import com.android.server.WindowManagerService;

import dalvik.system.Zygote;

import android.app.Activity;
import android.app.ActivityManager;
import android.app.ActivityManagerNative;
import android.app.ActivityThread;
import android.app.AlertDialog;
import android.app.ApplicationErrorReport;
import android.app.Dialog;
import android.app.IActivityController;
import android.app.IActivityManager;
import android.app.IActivityWatcher;
import android.app.IApplicationThread;
import android.app.IInstrumentationWatcher;
import android.app.IServiceConnection;
import android.app.IThumbnailReceiver;
import android.app.Instrumentation;
import android.app.Notification;
import android.app.PendingIntent;
import android.app.ResultInfo;
import android.app.Service;
import android.app.backup.IBackupManager;
import android.content.ActivityNotFoundException;
import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.ContentResolver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.IIntentReceiver;
import android.content.IIntentSender;
import android.content.IntentSender;
import android.content.pm.ActivityInfo;
import android.content.pm.ApplicationInfo;
import android.content.pm.ConfigurationInfo;
import android.content.pm.IPackageDataObserver;
import android.content.pm.IPackageManager;
import android.content.pm.InstrumentationInfo;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PathPermission;
import android.content.pm.ProviderInfo;
import android.content.pm.ResolveInfo;
import android.content.pm.ServiceInfo;
import android.content.res.Configuration;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Binder;
import android.os.Build;
import android.os.Bundle;
import android.os.Debug;
import android.os.DropBoxManager;
import android.os.Environment;
import android.os.FileObserver;
import android.os.FileUtils;
import android.os.Handler;
import android.os.IBinder;
import android.os.IPermissionController;
import android.os.Looper;
import android.os.Message;
import android.os.Parcel;
import android.os.ParcelFileDescriptor;
import android.os.PowerManager;
import android.os.Process;
import android.os.RemoteCallbackList;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.os.SystemClock;
import android.os.SystemProperties;
import android.provider.Settings;
import android.util.Config;
import android.util.EventLog;
import android.util.Slog;
import android.util.Log;
import android.util.PrintWriterPrinter;
import android.util.SparseArray;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.WindowManager;
import android.view.WindowManagerPolicy;

import java.io.File;
import java.io.FileDescriptor;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.lang.IllegalStateException;
import java.lang.ref.WeakReference;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicLong;

public final class ActivityManagerService extends ActivityManagerNative implements Watchdog.Monitor {
    static final String TAG = "ActivityManager";
    static final boolean DEBUG = false;
    static final boolean localLOGV = DEBUG ? Config.LOGD : Config.LOGV;
    static final boolean DEBUG_SWITCH = localLOGV || false;
    static final boolean DEBUG_TASKS = localLOGV || false;
    static final boolean DEBUG_PAUSE = localLOGV || false;
    static final boolean DEBUG_OOM_ADJ = localLOGV || false;
    static final boolean DEBUG_TRANSITION = localLOGV || false;
    static final boolean DEBUG_BROADCAST = localLOGV || false;
    static final boolean DEBUG_BROADCAST_LIGHT = DEBUG_BROADCAST || false;
    static final boolean DEBUG_SERVICE = localLOGV || false;
    static final boolean DEBUG_VISBILITY = localLOGV || false;
    static final boolean DEBUG_PROCESSES = localLOGV || false;
    static final boolean DEBUG_PROVIDER = localLOGV || false;
    static final boolean DEBUG_URI_PERMISSION = localLOGV || false;
    static final boolean DEBUG_USER_LEAVING = localLOGV || false;
    static final boolean DEBUG_RESULTS = localLOGV || false;
    static final boolean DEBUG_BACKUP = localLOGV || false;
    static final boolean DEBUG_CONFIGURATION = localLOGV || false;
    static final boolean VALIDATE_TOKENS = false;
    static final boolean SHOW_ACTIVITY_START_TIME = true;
    
    // Control over CPU and battery monitoring.
    static final long BATTERY_STATS_TIME = 30*60*1000;      // write battery stats every 30 minutes.
    static final boolean MONITOR_CPU_USAGE = true;
    static final long MONITOR_CPU_MIN_TIME = 5*1000;        // don't sample cpu less than every 5 seconds.
    static final long MONITOR_CPU_MAX_TIME = 0x0fffffff;    // wait possibly forever for next cpu sample.
    static final boolean MONITOR_THREAD_CPU_USAGE = false;

    // The flags that are set for all calls we make to the package manager.
    static final int STOCK_PM_FLAGS = PackageManager.GET_SHARED_LIBRARY_FILES;
    
    private static final String SYSTEM_SECURE = "ro.secure";

    // This is the maximum number of application processes we would like
    // to have running.  Due to the asynchronous nature of things, we can
    // temporarily go beyond this limit.
    static final int MAX_PROCESSES = 2;

    // Set to false to leave processes running indefinitely, relying on
    // the kernel killing them as resources are required.
    static final boolean ENFORCE_PROCESS_LIMIT = false;

    // This is the maximum number of activities that we would like to have
    // running at a given time.
    static final int MAX_ACTIVITIES = 20;

    // Maximum number of recent tasks that we can remember.
    static final int MAX_RECENT_TASKS = 20;

    // Amount of time after a call to stopAppSwitches() during which we will
    // prevent further untrusted switches from happening.
    static final long APP_SWITCH_DELAY_TIME = 5*1000;
    
    // How long until we reset a task when the user returns to it.  Currently
    // 30 minutes.
    static final long ACTIVITY_INACTIVE_RESET_TIME = 1000*60*30;
    
    // Set to true to disable the icon that is shown while a new activity
    // is being started.
    static final boolean SHOW_APP_STARTING_ICON = true;

    // How long we wait until giving up on the last activity to pause.  This
    // is short because it directly impacts the responsiveness of starting the
    // next activity.
    static final int PAUSE_TIMEOUT = 500;

    /**
     * How long we can hold the launch wake lock before giving up.
     */
    static final int LAUNCH_TIMEOUT = 10*1000;

    // How long we wait for a launched process to attach to the activity manager
    // before we decide it's never going to come up for real.
    static final int PROC_START_TIMEOUT = 10*1000;

    // How long we wait until giving up on the last activity telling us it
    // is idle.
    static final int IDLE_TIMEOUT = 10*1000;

    // How long to wait after going idle before forcing apps to GC.
    static final int GC_TIMEOUT = 5*1000;

    // The minimum amount of time between successive GC requests for a process.
    static final int GC_MIN_INTERVAL = 60*1000;

    // How long we wait until giving up on an activity telling us it has
    // finished destroying itself.
    static final int DESTROY_TIMEOUT = 10*1000;
    
    // How long we allow a receiver to run before giving up on it.
    static final int BROADCAST_TIMEOUT = 10*1000;

    // How long we wait for a service to finish executing.
    static final int SERVICE_TIMEOUT = 20*1000;

    // How long a service needs to be running until restarting its process
    // is no longer considered to be a relaunch of the service.
    static final int SERVICE_RESTART_DURATION = 5*1000;

    // How long a service needs to be running until it will start back at
    // SERVICE_RESTART_DURATION after being killed.
    static final int SERVICE_RESET_RUN_DURATION = 60*1000;

    // Multiplying factor to increase restart duration time by, for each time
    // a service is killed before it has run for SERVICE_RESET_RUN_DURATION.
    static final int SERVICE_RESTART_DURATION_FACTOR = 4;
    
    // The minimum amount of time between restarting services that we allow.
    // That is, when multiple services are restarting, we won't allow each
    // to restart less than this amount of time from the last one.
    static final int SERVICE_MIN_RESTART_TIME_BETWEEN = 10*1000;

    // Maximum amount of time for there to be no activity on a service before
    // we consider it non-essential and allow its process to go on the
    // LRU background list.
    static final int MAX_SERVICE_INACTIVITY = 30*60*1000;
    
    // How long we wait until we timeout on key dispatching.
    static final int KEY_DISPATCHING_TIMEOUT = 5*1000;

    // The minimum time we allow between crashes, for us to consider this
    // application to be bad and stop and its services and reject broadcasts.
    static final int MIN_CRASH_INTERVAL = 60*1000;

    // How long we wait until we timeout on key dispatching during instrumentation.
    static final int INSTRUMENTATION_KEY_DISPATCHING_TIMEOUT = 60*1000;

    // OOM adjustments for processes in various states:

    // This is a process without anything currently running in it.  Definitely
    // the first to go! Value set in system/rootdir/init.rc on startup.
    // This value is initalized in the constructor, careful when refering to
    // this static variable externally.
    static final int EMPTY_APP_ADJ;

    // This is a process only hosting activities that are not visible,
    // so it can be killed without any disruption. Value set in
    // system/rootdir/init.rc on startup.
    static final int HIDDEN_APP_MAX_ADJ;
    static int HIDDEN_APP_MIN_ADJ;

    // This is a process holding the home application -- we want to try
    // avoiding killing it, even if it would normally be in the background,
    // because the user interacts with it so much.
    static final int HOME_APP_ADJ;

    // This is a process currently hosting a backup operation.  Killing it
    // is not entirely fatal but is generally a bad idea.
    static final int BACKUP_APP_ADJ;

    // This is a process holding a secondary server -- killing it will not
    // have much of an impact as far as the user is concerned. Value set in
    // system/rootdir/init.rc on startup.
    static final int SECONDARY_SERVER_ADJ;

    // This is a process only hosting activities that are visible to the
    // user, so we'd prefer they don't disappear. Value set in
    // system/rootdir/init.rc on startup.
    static final int VISIBLE_APP_ADJ;

    // This is the process running the current foreground app.  We'd really
    // rather not kill it! Value set in system/rootdir/init.rc on startup.
    static final int FOREGROUND_APP_ADJ;

    // This is a process running a core server, such as telephony.  Definitely
    // don't want to kill it, but doing so is not completely fatal.
    static final int CORE_SERVER_ADJ = -12;

    // The system process runs at the default adjustment.
    static final int SYSTEM_ADJ = -16;

    // Memory pages are 4K.
    static final int PAGE_SIZE = 4*1024;
    
    // Corresponding memory levels for above adjustments.
    static final int EMPTY_APP_MEM;
    static final int HIDDEN_APP_MEM;
    static final int HOME_APP_MEM;
    static final int BACKUP_APP_MEM;
    static final int SECONDARY_SERVER_MEM;
    static final int VISIBLE_APP_MEM;
    static final int FOREGROUND_APP_MEM;

    // The minimum number of hidden apps we want to be able to keep around,
    // without empty apps being able to push them out of memory.
    static final int MIN_HIDDEN_APPS = 2;
    
    // The maximum number of hidden processes we will keep around before
    // killing them; this is just a control to not let us go too crazy with
    // keeping around processes on devices with large amounts of RAM.
    static final int MAX_HIDDEN_APPS = 15;
    
    // We put empty content processes after any hidden processes that have
    // been idle for less than 15 seconds.
    static final long CONTENT_APP_IDLE_OFFSET = 15*1000;
    
    // We put empty content processes after any hidden processes that have
    // been idle for less than 120 seconds.
    static final long EMPTY_APP_IDLE_OFFSET = 120*1000;
    
    static {
        // These values are set in system/rootdir/init.rc on startup.
        FOREGROUND_APP_ADJ =
            Integer.valueOf(SystemProperties.get("ro.FOREGROUND_APP_ADJ"));
        VISIBLE_APP_ADJ =
            Integer.valueOf(SystemProperties.get("ro.VISIBLE_APP_ADJ"));
        SECONDARY_SERVER_ADJ =
            Integer.valueOf(SystemProperties.get("ro.SECONDARY_SERVER_ADJ"));
        BACKUP_APP_ADJ =
            Integer.valueOf(SystemProperties.get("ro.BACKUP_APP_ADJ"));
        HOME_APP_ADJ =
            Integer.valueOf(SystemProperties.get("ro.HOME_APP_ADJ"));
        HIDDEN_APP_MIN_ADJ =
            Integer.valueOf(SystemProperties.get("ro.HIDDEN_APP_MIN_ADJ"));
        EMPTY_APP_ADJ =
            Integer.valueOf(SystemProperties.get("ro.EMPTY_APP_ADJ"));
        HIDDEN_APP_MAX_ADJ = EMPTY_APP_ADJ-1;
        FOREGROUND_APP_MEM =
            Integer.valueOf(SystemProperties.get("ro.FOREGROUND_APP_MEM"))*PAGE_SIZE;
        VISIBLE_APP_MEM =
            Integer.valueOf(SystemProperties.get("ro.VISIBLE_APP_MEM"))*PAGE_SIZE;
        SECONDARY_SERVER_MEM =
            Integer.valueOf(SystemProperties.get("ro.SECONDARY_SERVER_MEM"))*PAGE_SIZE;
        BACKUP_APP_MEM =
            Integer.valueOf(SystemProperties.get("ro.BACKUP_APP_MEM"))*PAGE_SIZE;
        HOME_APP_MEM =
            Integer.valueOf(SystemProperties.get("ro.HOME_APP_MEM"))*PAGE_SIZE;
        HIDDEN_APP_MEM =
            Integer.valueOf(SystemProperties.get("ro.HIDDEN_APP_MEM"))*PAGE_SIZE;
        EMPTY_APP_MEM =
            Integer.valueOf(SystemProperties.get("ro.EMPTY_APP_MEM"))*PAGE_SIZE;
    }
    
    static final int MY_PID = Process.myPid();
    
    static final String[] EMPTY_STRING_ARRAY = new String[0];

    enum ActivityState {
        INITIALIZING,
        RESUMED,
        PAUSING,
        PAUSED,
        STOPPING,
        STOPPED,
        FINISHING,
        DESTROYING,
        DESTROYED
    }

    /**
     * The back history of all previous (and possibly still
     * running) activities.  It contains HistoryRecord objects.
     */
    final ArrayList mHistory = new ArrayList();

    /**
     * Description of a request to start a new activity, which has been held
     * due to app switches being disabled.
     */
    class PendingActivityLaunch {
        HistoryRecord r;
        HistoryRecord sourceRecord;
        Uri[] grantedUriPermissions;
        int grantedMode;
        boolean onlyIfNeeded;
    }
    
    final ArrayList<PendingActivityLaunch> mPendingActivityLaunches
            = new ArrayList<PendingActivityLaunch>();
    
    /**
     * List of people waiting to find out about the next launched activity.
     */
    final ArrayList<IActivityManager.WaitResult> mWaitingActivityLaunched
            = new ArrayList<IActivityManager.WaitResult>();
    
    /**
     * List of people waiting to find out about the next visible activity.
     */
    final ArrayList<IActivityManager.WaitResult> mWaitingActivityVisible
            = new ArrayList<IActivityManager.WaitResult>();
    
    /**
     * List of all active broadcasts that are to be executed immediately
     * (without waiting for another broadcast to finish).  Currently this only
     * contains broadcasts to registered receivers, to avoid spinning up
     * a bunch of processes to execute IntentReceiver components.
     */
    final ArrayList<BroadcastRecord> mParallelBroadcasts
            = new ArrayList<BroadcastRecord>();

    /**
     * List of all active broadcasts that are to be executed one at a time.
     * The object at the top of the list is the currently activity broadcasts;
     * those after it are waiting for the top to finish..
     */
    final ArrayList<BroadcastRecord> mOrderedBroadcasts
            = new ArrayList<BroadcastRecord>();

    /**
     * Historical data of past broadcasts, for debugging.
     */
    static final int MAX_BROADCAST_HISTORY = 100;
    final BroadcastRecord[] mBroadcastHistory
            = new BroadcastRecord[MAX_BROADCAST_HISTORY];

    /**
     * Set when we current have a BROADCAST_INTENT_MSG in flight.
     */
    boolean mBroadcastsScheduled = false;

    /**
     * Set to indicate whether to issue an onUserLeaving callback when a
     * newly launched activity is being brought in front of us.
     */
    boolean mUserLeaving = false;

    /**
     * When we are in the process of pausing an activity, before starting the
     * next one, this variable holds the activity that is currently being paused.
     */
    HistoryRecord mPausingActivity = null;

    /**
     * Current activity that is resumed, or null if there is none.
     */
    HistoryRecord mResumedActivity = null;

    /**
     * Activity we have told the window manager to have key focus.
     */
    HistoryRecord mFocusedActivity = null;

    /**
     * This is the last activity that we put into the paused state.  This is
     * used to determine if we need to do an activity transition while sleeping,
     * when we normally hold the top activity paused.
     */
    HistoryRecord mLastPausedActivity = null;

    /**
     * List of activities that are waiting for a new activity
     * to become visible before completing whatever operation they are
     * supposed to do.
     */
    final ArrayList mWaitingVisibleActivities = new ArrayList();

    /**
     * List of activities that are ready to be stopped, but waiting
     * for the next activity to settle down before doing so.  It contains
     * HistoryRecord objects.
     */
    final ArrayList<HistoryRecord> mStoppingActivities
            = new ArrayList<HistoryRecord>();

    /**
     * Animations that for the current transition have requested not to
     * be considered for the transition animation.
     */
    final ArrayList<HistoryRecord> mNoAnimActivities
            = new ArrayList<HistoryRecord>();
    
    /**
     * List of intents that were used to start the most recent tasks.
     */
    final ArrayList<TaskRecord> mRecentTasks
            = new ArrayList<TaskRecord>();

    /**
     * List of activities that are ready to be finished, but waiting
     * for the previous activity to settle down before doing so.  It contains
     * HistoryRecord objects.
     */
    final ArrayList mFinishingActivities = new ArrayList();

    /**
     * All of the applications we currently have running organized by name.
     * The keys are strings of the application package name (as
     * returned by the package manager), and the keys are ApplicationRecord
     * objects.
     */
    final ProcessMap<ProcessRecord> mProcessNames
            = new ProcessMap<ProcessRecord>();

    /**
     * The last time that various processes have crashed.
     */
    final ProcessMap<Long> mProcessCrashTimes = new ProcessMap();

    /**
     * Set of applications that we consider to be bad, and will reject
     * incoming broadcasts from (which the user has no control over).
     * Processes are added to this set when they have crashed twice within
     * a minimum amount of time; they are removed from it when they are
     * later restarted (hopefully due to some user action).  The value is the
     * time it was added to the list.
     */
    final ProcessMap<Long> mBadProcesses = new ProcessMap();

    /**
     * All of the processes we currently have running organized by pid.
     * The keys are the pid running the application.
     *
     * <p>NOTE: This object is protected by its own lock, NOT the global
     * activity manager lock!
     */
    final SparseArray<ProcessRecord> mPidsSelfLocked
            = new SparseArray<ProcessRecord>();

    /**
     * All of the processes that have been forced to be foreground.  The key
     * is the pid of the caller who requested it (we hold a death
     * link on it).
     */
    abstract class ForegroundToken implements IBinder.DeathRecipient {
        int pid;
        IBinder token;
    }
    final SparseArray<ForegroundToken> mForegroundProcesses
            = new SparseArray<ForegroundToken>();
    
    /**
     * List of records for processes that someone had tried to start before the
     * system was ready.  We don't start them at that point, but ensure they
     * are started by the time booting is complete.
     */
    final ArrayList<ProcessRecord> mProcessesOnHold
            = new ArrayList<ProcessRecord>();

    /**
     * List of records for processes that we have started and are waiting
     * for them to call back.  This is really only needed when running in
     * single processes mode, in which case we do not have a unique pid for
     * each process.
     */
    final ArrayList<ProcessRecord> mStartingProcesses
            = new ArrayList<ProcessRecord>();

    /**
     * List of persistent applications that are in the process
     * of being started.
     */
    final ArrayList<ProcessRecord> mPersistentStartingProcesses
            = new ArrayList<ProcessRecord>();

    /**
     * Processes that are being forcibly torn down.
     */
    final ArrayList<ProcessRecord> mRemovedProcesses
            = new ArrayList<ProcessRecord>();

    /**
     * List of running applications, sorted by recent usage.
     * The first entry in the list is the least recently used.
     * It contains ApplicationRecord objects.  This list does NOT include
     * any persistent application records (since we never want to exit them).
     */
    final ArrayList<ProcessRecord> mLruProcesses
            = new ArrayList<ProcessRecord>();

    /**
     * List of processes that should gc as soon as things are idle.
     */
    final ArrayList<ProcessRecord> mProcessesToGc
            = new ArrayList<ProcessRecord>();

    /**
     * This is the process holding what we currently consider to be
     * the "home" activity.
     */
    private ProcessRecord mHomeProcess;
    
    /**
     * List of running activities, sorted by recent usage.
     * The first entry in the list is the least recently used.
     * It contains HistoryRecord objects.
     */
    private final ArrayList mLRUActivities = new ArrayList();

    /**
     * Set of PendingResultRecord objects that are currently active.
     */
    final HashSet mPendingResultRecords = new HashSet();

    /**
     * Set of IntentSenderRecord objects that are currently active.
     */
    final HashMap<PendingIntentRecord.Key, WeakReference mIntentSenderRecords
            = new HashMap<PendingIntentRecord.Key, WeakReference();

    /**
     * Intent broadcast that we have tried to start, but are
     * waiting for its application's process to be created.  We only
     * need one (instead of a list) because we always process broadcasts
     * one at a time, so no others can be started while waiting for this
     * one.
     */
    BroadcastRecord mPendingBroadcast = null;

    /**
     * Keeps track of all IIntentReceivers that have been registered for
     * broadcasts.  Hash keys are the receiver IBinder, hash value is
     * a ReceiverList.
     */
    final HashMap mRegisteredReceivers = new HashMap();

    /**
     * Resolver for broadcast intents to registered receivers.
     * Holds BroadcastFilter (subclass of IntentFilter).
     */
    final IntentResolver<BroadcastFilter, BroadcastFilter> mReceiverResolver
            = new IntentResolver<BroadcastFilter, BroadcastFilter>() {
        @Override
        protected boolean allowFilterResult(
                BroadcastFilter filter, List<BroadcastFilter> dest) {
            IBinder target = filter.receiverList.receiver.asBinder();
            for (int i=dest.size()-1; i>=0; i--) {
                if (dest.get(i).receiverList.receiver.asBinder() == target) {
                    return false;
                }
            }
            return true;
        }
    };

    /**
     * State of all active sticky broadcasts.  Keys are the action of the
     * sticky Intent, values are an ArrayList of all broadcasted intents with
     * that action (which should usually be one).
     */
    final HashMap<String, ArrayList mStickyBroadcasts =
            new HashMap<String, ArrayList();

    /**
     * All currently running services.
     */
    final HashMap<ComponentName, ServiceRecord> mServices =
        new HashMap<ComponentName, ServiceRecord>();

    /**
     * All currently running services indexed by the Intent used to start them.
     */
    final HashMap<Intent.FilterComparison, ServiceRecord> mServicesByIntent =
        new HashMap<Intent.FilterComparison, ServiceRecord>();

    /**
     * All currently bound service connections.  Keys are the IBinder of
     * the client's IServiceConnection.
     */
    final HashMap<IBinder, ConnectionRecord> mServiceConnections
            = new HashMap<IBinder, ConnectionRecord>();

    /**
     * List of services that we have been asked to start,
     * but haven't yet been able to.  It is used to hold start requests
     * while waiting for their corresponding application thread to get
     * going.
     */
    final ArrayList<ServiceRecord> mPendingServices
            = new ArrayList<ServiceRecord>();

    /**
     * List of services that are scheduled to restart following a crash.
     */
    final ArrayList<ServiceRecord> mRestartingServices
            = new ArrayList<ServiceRecord>();

    /**
     * List of services that are in the process of being stopped.
     */
    final ArrayList<ServiceRecord> mStoppingServices
            = new ArrayList<ServiceRecord>();

    /**
     * Backup/restore process management
     */
    String mBackupAppName = null;
    BackupRecord mBackupTarget = null;

    /**
     * List of PendingThumbnailsRecord objects of clients who are still
     * waiting to receive all of the thumbnails for a task.
     */
    final ArrayList mPendingThumbnails = new ArrayList();

    /**
     * List of HistoryRecord objects that have been finished and must
     * still report back to a pending thumbnail receiver.
     */
    final ArrayList mCancelledThumbnails = new ArrayList();

    /**
     * All of the currently running global content providers.  Keys are a
     * string containing the provider name and values are a
     * ContentProviderRecord object containing the data about it.  Note
     * that a single provider may be published under multiple names, so
     * there may be multiple entries here for a single one in mProvidersByClass.
     */
    final HashMap mProvidersByName = new HashMap();

    /**
     * All of the currently running global content providers.  Keys are a
     * string containing the provider's implementation class and values are a
     * ContentProviderRecord object containing the data about it.
     */
    final HashMap mProvidersByClass = new HashMap();

    /**
     * List of content providers who have clients waiting for them.  The
     * application is currently being launched and the provider will be
     * removed from this list once it is published.
     */
    final ArrayList mLaunchingProviders = new ArrayList();

    /**
     * Global set of specific Uri permissions that have been granted.
     */
    final private SparseArray<HashMap mGrantedUriPermissions
            = new SparseArray<HashMap();

    /**
     * Thread-local storage used to carry caller permissions over through
     * indirect content-provider access.
     * @see #ActivityManagerService.openContentUri()
     */
    private class Identity {
        public int pid;
        public int uid;

        Identity(int _pid, int _uid) {
            pid = _pid;
            uid = _uid;
        }
    }
    private static ThreadLocal<Identity> sCallerIdentity = new ThreadLocal();

    /**
     * All information we have collected about the runtime performance of
     * any user id that can impact battery performance.
     */
    final BatteryStatsService mBatteryStatsService;
    
    /**
     * information about component usage
     */
    final UsageStatsService mUsageStatsService;

    /**
     * Current configuration information.  HistoryRecord objects are given
     * a reference to this object to indicate which configuration they are
     * currently running in, so this object must be kept immutable.
     */
    Configuration mConfiguration = new Configuration();

    /**
     * Current sequencing integer of the configuration, for skipping old
     * configurations.
     */
    int mConfigurationSeq = 0;
    
    /**
     * Set when we know we are going to be calling updateConfiguration()
     * soon, so want to skip intermediate config checks.
     */
    boolean mConfigWillChange;
    
    /**
     * Hardware-reported OpenGLES version.
     */
    final int GL_ES_VERSION;

    /**
     * List of initialization arguments to pass to all processes when binding applications to them.
     * For example, references to the commonly used services.
     */
    HashMap<String, IBinder> mAppBindArgs;

    /**
     * Temporary to avoid allocations.  Protected by main lock.
     */
    final StringBuilder mStringBuilder = new StringBuilder(256);
    
    /**
     * Used to control how we initialize the service.
     */
    boolean mStartRunning = false;
    ComponentName mTopComponent;
    String mTopAction;
    String mTopData;
    boolean mSystemReady = false;
    boolean mBooting = false;
    boolean mWaitingUpdate = false;
    boolean mDidUpdate = false;

    Context mContext;

    int mFactoryTest;

    boolean mCheckedForSetup;
    
    /**
     * The time at which we will allow normal application switches again,
     * after a call to {@link #stopAppSwitches()}.
     */
    long mAppSwitchesAllowedTime;

    /**
     * This is set to true after the first switch after mAppSwitchesAllowedTime
     * is set; any switches after that will clear the time.
     */
    boolean mDidAppSwitch;
    
    /**
     * Set while we are wanting to sleep, to prevent any
     * activities from being started/resumed.
     */
    boolean mSleeping = false;

    /**
     * Set if we are shutting down the system, similar to sleeping.
     */
    boolean mShuttingDown = false;
    
    /**
     * Set when the system is going to sleep, until we have
     * successfully paused the current activity and released our wake lock.
     * At that point the system is allowed to actually sleep.
     */
    PowerManager.WakeLock mGoingToSleep;

    /**
     * We don't want to allow the device to go to sleep while in the process
     * of launching an activity.  This is primarily to allow alarm intent
     * receivers to launch an activity and get that to run before the device
     * goes back to sleep.
     */
    PowerManager.WakeLock mLaunchingActivity;

    /**
     * Task identifier that activities are currently being started
     * in.  Incremented each time a new task is created.
     * todo: Replace this with a TokenSpace class that generates non-repeating
     * integers that won't wrap.
     */
    int mCurTask = 1;

    /**
     * Current sequence id for oom_adj computation traversal.
     */
    int mAdjSeq = 0;

    /**
     * Current sequence id for process LRU updating.
     */
    int mLruSeq = 0;
    
    /**
     * Set to true if the ANDROID_SIMPLE_PROCESS_MANAGEMENT envvar
     * is set, indicating the user wants processes started in such a way
     * that they can use ANDROID_PROCESS_WRAPPER and know what will be
     * running in each process (thus no pre-initialized process, etc).
     */
    boolean mSimpleProcessManagement = false;

    /**
     * System monitoring: number of processes that died since the last
     * N procs were started.
     */
    int[] mProcDeaths = new int[20];
    
    /**
     * This is set if we had to do a delayed dexopt of an app before launching
     * it, to increasing the ANR timeouts in that case.
     */
    boolean mDidDexOpt;
    
    String mDebugApp = null;
    boolean mWaitForDebugger = false;
    boolean mDebugTransient = false;
    String mOrigDebugApp = null;
    boolean mOrigWaitForDebugger = false;
    boolean mAlwaysFinishActivities = false;
    IActivityController mController = null;

    final RemoteCallbackList<IActivityWatcher> mWatchers
            = new RemoteCallbackList<IActivityWatcher>();
    
    /**
     * Callback of last caller to {@link #requestPss}.
     */
    Runnable mRequestPssCallback;

    /**
     * Remaining processes for which we are waiting results from the last
     * call to {@link #requestPss}.
     */
    final ArrayList<ProcessRecord> mRequestPssList
            = new ArrayList<ProcessRecord>();
    
    /**
     * Runtime statistics collection thread.  This object's lock is used to
     * protect all related state.
     */
    final Thread mProcessStatsThread;
    
    /**
     * Used to collect process stats when showing not responding dialog.
     * Protected by mProcessStatsThread.
     */
    final ProcessStats mProcessStats = new ProcessStats(
            MONITOR_THREAD_CPU_USAGE);
    final AtomicLong mLastCpuTime = new AtomicLong(0);
    final AtomicBoolean mProcessStatsMutexFree = new AtomicBoolean(true);

    long mLastWriteTime = 0;

    long mInitialStartTime = 0;
    
    /**
     * Set to true after the system has finished booting.
     */
    boolean mBooted = false;

    int mProcessLimit = 0;

    WindowManagerService mWindowManager;

    static ActivityManagerService mSelf;
    static ActivityThread mSystemThread;

    private final class AppDeathRecipient implements IBinder.DeathRecipient {
        final ProcessRecord mApp;
        final int mPid;
        final IApplicationThread mAppThread;

        AppDeathRecipient(ProcessRecord app, int pid,
                IApplicationThread thread) {
            if (localLOGV) Slog.v(
                TAG, "New death recipient " + this
                + " for thread " + thread.asBinder());
            mApp = app;
            mPid = pid;
            mAppThread = thread;
        }

        public void binderDied() {
            if (localLOGV) Slog.v(
                TAG, "Death received in " + this
                + " for thread " + mAppThread.asBinder());
            removeRequestedPss(mApp);
            synchronized(ActivityManagerService.this) {
                appDiedLocked(mApp, mPid, mAppThread);
            }
        }
    }

    static final int SHOW_ERROR_MSG = 1;
    static final int SHOW_NOT_RESPONDING_MSG = 2;
    static final int SHOW_FACTORY_ERROR_MSG = 3;
    static final int UPDATE_CONFIGURATION_MSG = 4;
    static final int GC_BACKGROUND_PROCESSES_MSG = 5;
    static final int WAIT_FOR_DEBUGGER_MSG = 6;
    static final int BROADCAST_INTENT_MSG = 7;
    static final int BROADCAST_TIMEOUT_MSG = 8;
    static final int PAUSE_TIMEOUT_MSG = 9;
    static final int IDLE_TIMEOUT_MSG = 10;
    static final int IDLE_NOW_MSG = 11;
    static final int SERVICE_TIMEOUT_MSG = 12;
    static final int UPDATE_TIME_ZONE = 13;
    static final int SHOW_UID_ERROR_MSG = 14;
    static final int IM_FEELING_LUCKY_MSG = 15;
    static final int LAUNCH_TIMEOUT_MSG = 16;
    static final int DESTROY_TIMEOUT_MSG = 17;
    static final int RESUME_TOP_ACTIVITY_MSG = 19;
    static final int PROC_START_TIMEOUT_MSG = 20;
    static final int DO_PENDING_ACTIVITY_LAUNCHES_MSG = 21;
    static final int KILL_APPLICATION_MSG = 22;
    static final int FINALIZE_PENDING_INTENT_MSG = 23;

    AlertDialog mUidAlert;

    final Handler mHandler = new Handler() {
        //public Handler() {
        //    if (localLOGV) Slog.v(TAG, "Handler started!");
        //}

        public void handleMessage(Message msg) {
            switch (msg.what) {
            case SHOW_ERROR_MSG: {
                HashMap data = (HashMap) msg.obj;
                synchronized (ActivityManagerService.this) {
                    ProcessRecord proc = (ProcessRecord)data.get("app");
                    if (proc != null && proc.crashDialog != null) {
                        Slog.e(TAG, "App already has crash dialog: " + proc);
                        return;
                    }
                    AppErrorResult res = (AppErrorResult) data.get("result");
                    if (!mSleeping && !mShuttingDown) {
                        Dialog d = new AppErrorDialog(mContext, res, proc);
                        d.show();
                        proc.crashDialog = d;
                    } else {
                        // The device is asleep, so just pretend that the user
                        // saw a crash dialog and hit "force quit".
                        res.set(0);
                    }
                }
                
                ensureBootCompleted();
            } break;
            case SHOW_NOT_RESPONDING_MSG: {
                synchronized (ActivityManagerService.this) {
                    HashMap data = (HashMap) msg.obj;
                    ProcessRecord proc = (ProcessRecord)data.get("app");
                    if (proc != null && proc.anrDialog != null) {
                        Slog.e(TAG, "App already has anr dialog: " + proc);
                        return;
                    }
                    
                    broadcastIntentLocked(null, null, new Intent("android.intent.action.ANR"),
                            null, null, 0, null, null, null,
                            false, false, MY_PID, Process.SYSTEM_UID);

                    Dialog d = new AppNotRespondingDialog(ActivityManagerService.this,
                            mContext, proc, (HistoryRecord)data.get("activity"));
                    d.show();
                    proc.anrDialog = d;
                }
                
                ensureBootCompleted();
            } break;
            case SHOW_FACTORY_ERROR_MSG: {
                Dialog d = new FactoryErrorDialog(
                    mContext, msg.getData().getCharSequence("msg"));
                d.show();
                ensureBootCompleted();
            } break;
            case UPDATE_CONFIGURATION_MSG: {
                final ContentResolver resolver = mContext.getContentResolver();
                Settings.System.putConfiguration(resolver, (Configuration)msg.obj);
            } break;
            case GC_BACKGROUND_PROCESSES_MSG: {
                synchronized (ActivityManagerService.this) {
                    performAppGcsIfAppropriateLocked();
                }
            } break;
            case WAIT_FOR_DEBUGGER_MSG: {
                synchronized (ActivityManagerService.this) {
                    ProcessRecord app = (ProcessRecord)msg.obj;
                    if (msg.arg1 != 0) {
                        if (!app.waitedForDebugger) {
                            Dialog d = new AppWaitingForDebuggerDialog(
                                    ActivityManagerService.this,
                                    mContext, app);
                            app.waitDialog = d;
                            app.waitedForDebugger = true;
                            d.show();
                        }
                    } else {
                        if (app.waitDialog != null) {
                            app.waitDialog.dismiss();
                            app.waitDialog = null;
                        }
                    }
                }
            } break;
            case BROADCAST_INTENT_MSG: {
                if (DEBUG_BROADCAST) Slog.v(
                        TAG, "Received BROADCAST_INTENT_MSG");
                processNextBroadcast(true);
            } break;
            case BROADCAST_TIMEOUT_MSG: {
                if (mDidDexOpt) {
                    mDidDexOpt = false;
                    Message nmsg = mHandler.obtainMessage(BROADCAST_TIMEOUT_MSG);
                    mHandler.sendMessageDelayed(nmsg, BROADCAST_TIMEOUT);
                    return;
                }
                // Only process broadcast timeouts if the system is ready. That way
                // PRE_BOOT_COMPLETED broadcasts can't timeout as they are intended
                // to do heavy lifting for system up
                if (mSystemReady) {
                    broadcastTimeout();
                }
            } break;
            case PAUSE_TIMEOUT_MSG: {
                IBinder token = (IBinder)msg.obj;
                // We don't at this point know if the activity is fullscreen,
                // so we need to be conservative and assume it isn't.
                Slog.w(TAG, "Activity pause timeout for " + token);
                activityPaused(token, null, true);
            } break;
            case IDLE_TIMEOUT_MSG: {
                if (mDidDexOpt) {
                    mDidDexOpt = false;
                    Message nmsg = mHandler.obtainMessage(IDLE_TIMEOUT_MSG);
                    nmsg.obj = msg.obj;
                    mHandler.sendMessageDelayed(nmsg, IDLE_TIMEOUT);
                    return;
                }
                // We don't at this point know if the activity is fullscreen,
                // so we need to be conservative and assume it isn't.
                IBinder token = (IBinder)msg.obj;
                Slog.w(TAG, "Activity idle timeout for " + token);
                activityIdleInternal(token, true, null);
            } break;
            case DESTROY_TIMEOUT_MSG: {
                IBinder token = (IBinder)msg.obj;
                // We don't at this point know if the activity is fullscreen,
                // so we need to be conservative and assume it isn't.
                Slog.w(TAG, "Activity destroy timeout for " + token);
                activityDestroyed(token);
            } break;
            case IDLE_NOW_MSG: {
                IBinder token = (IBinder)msg.obj;
                activityIdle(token, null);
            } break;
            case SERVICE_TIMEOUT_MSG: {
                if (mDidDexOpt) {
                    mDidDexOpt = false;
                    Message nmsg = mHandler.obtainMessage(SERVICE_TIMEOUT_MSG);
                    nmsg.obj = msg.obj;
                    mHandler.sendMessageDelayed(nmsg, SERVICE_TIMEOUT);
                    return;
                }
                serviceTimeout((ProcessRecord)msg.obj);
            } break;
            case UPDATE_TIME_ZONE: {
                synchronized (ActivityManagerService.this) {
                    for (int i = mLruProcesses.size() - 1 ; i >= 0 ; i--) {
                        ProcessRecord r = mLruProcesses.get(i);
                        if (r.thread != null) {
                            try {
                                r.thread.updateTimeZone();
                            } catch (RemoteException ex) {
                                Slog.w(TAG, "Failed to update time zone for: " + r.info.processName);
                            }
                        }
                    }
                }
            } break;
            case SHOW_UID_ERROR_MSG: {
                // XXX This is a temporary dialog, no need to localize.
                AlertDialog d = new BaseErrorDialog(mContext);
                d.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ERROR);
                d.setCancelable(false);
                d.setTitle("System UIDs Inconsistent");
                d.setMessage("UIDs on the system are inconsistent, you need to wipe your data partition or your device will be unstable.");
                d.setButton(DialogInterface.BUTTON_POSITIVE, "I'm Feeling Lucky",
                        mHandler.obtainMessage(IM_FEELING_LUCKY_MSG));
                mUidAlert = d;
                d.show();
            } break;
            case IM_FEELING_LUCKY_MSG: {
                if (mUidAlert != null) {
                    mUidAlert.dismiss();
                    mUidAlert = null;
                }
            } break;
            case LAUNCH_TIMEOUT_MSG: {
                if (mDidDexOpt) {
                    mDidDexOpt = false;
                    Message nmsg = mHandler.obtainMessage(LAUNCH_TIMEOUT_MSG);
                    mHandler.sendMessageDelayed(nmsg, LAUNCH_TIMEOUT);
                    return;
                }
                synchronized (ActivityManagerService.this) {
                    if (mLaunchingActivity.isHeld()) {
                        Slog.w(TAG, "Launch timeout has expired, giving up wake lock!");
                        mLaunchingActivity.release();
                    }
                }
            } break;
            case RESUME_TOP_ACTIVITY_MSG: {
                synchronized (ActivityManagerService.this) {
                    resumeTopActivityLocked(null);
                }
            } break;
            case PROC_START_TIMEOUT_MSG: {
                if (mDidDexOpt) {
                    mDidDexOpt = false;
                    Message nmsg = mHandler.obtainMessage(PROC_START_TIMEOUT_MSG);
                    nmsg.obj = msg.obj;
                    mHandler.sendMessageDelayed(nmsg, PROC_START_TIMEOUT);
                    return;
                }
                ProcessRecord app = (ProcessRecord)msg.obj;
                synchronized (ActivityManagerService.this) {
                    processStartTimedOutLocked(app);
                }
            } break;
            case DO_PENDING_ACTIVITY_LAUNCHES_MSG: {
                synchronized (ActivityManagerService.this) {
                    doPendingActivityLaunchesLocked(true);
                }
            } break;
            case KILL_APPLICATION_MSG: {
                synchronized (ActivityManagerService.this) {
                    int uid = msg.arg1;
                    boolean restart = (msg.arg2 == 1);
                    String pkg = (String) msg.obj;
                    forceStopPackageLocked(pkg, uid, restart, false, true);
                }
            } break;
            case FINALIZE_PENDING_INTENT_MSG: {
                ((PendingIntentRecord)msg.obj).completeFinalize();
            } break;
            }
        }
    };

    public static void setSystemProcess() {
        try {
            ActivityManagerService m = mSelf;
            
            ServiceManager.addService("activity", m);
            ServiceManager.addService("meminfo", new MemBinder(m));
            if (MONITOR_CPU_USAGE) {
                ServiceManager.addService("cpuinfo", new CpuBinder(m));
            }
            ServiceManager.addService("permission", new PermissionController(m));

            ApplicationInfo info =
                mSelf.mContext.getPackageManager().getApplicationInfo(
                        "android", STOCK_PM_FLAGS);
            mSystemThread.installSystemApplicationInfo(info);
       
            synchronized (mSelf) {
                ProcessRecord app = mSelf.newProcessRecordLocked(
                        mSystemThread.getApplicationThread(), info,
                        info.processName);
                app.persistent = true;
                app.pid = MY_PID;
                app.maxAdj = SYSTEM_ADJ;
                mSelf.mProcessNames.put(app.processName, app.info.uid, app);
                synchronized (mSelf.mPidsSelfLocked) {
                    mSelf.mPidsSelfLocked.put(app.pid, app);
                }
                mSelf.updateLruProcessLocked(app, true, true);
            }
        } catch (PackageManager.NameNotFoundException e) {
            throw new RuntimeException(
                    "Unable to find android system package", e);
        }
    }

    public void setWindowManager(WindowManagerService wm) {
        mWindowManager = wm;
    }

    public static final Context main(int factoryTest) {
        AThread thr = new AThread();
        thr.start();

        synchronized (thr) {
            while (thr.mService == null) {
                try {
                    thr.wait();
                } catch (InterruptedException e) {
                }
            }
        }

        ActivityManagerService m = thr.mService;
        mSelf = m;
        ActivityThread at = ActivityThread.systemMain();
        mSystemThread = at;
        Context context = at.getSystemContext();
        m.mContext = context;
        m.mFactoryTest = factoryTest;
        PowerManager pm =
            (PowerManager)context.getSystemService(Context.POWER_SERVICE);
        m.mGoingToSleep = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "ActivityManager-Sleep");
        m.mLaunchingActivity = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "ActivityManager-Launch");
        m.mLaunchingActivity.setReferenceCounted(false);
        
        m.mBatteryStatsService.publish(context);
        m.mUsageStatsService.publish(context);
        
        synchronized (thr) {
            thr.mReady = true;
            thr.notifyAll();
        }

        m.startRunning(null, null, null, null);
        
        return context;
    }

    public static ActivityManagerService self() {
        return mSelf;
    }
    
    static class AThread extends Thread {
        ActivityManagerService mService;
        boolean mReady = false;

        public AThread() {
            super("ActivityManager");
        }

        public void run() {
            Looper.prepare();

            android.os.Process.setThreadPriority(
                    android.os.Process.THREAD_PRIORITY_FOREGROUND);

            ActivityManagerService m = new ActivityManagerService();

            synchronized (this) {
                mService = m;
                notifyAll();
            }

            synchronized (this) {
                while (!mReady) {
                    try {
                        wait();
                    } catch (InterruptedException e) {
                    }
                }
            }

            Looper.loop();
        }
    }

    static class MemBinder extends Binder {
        ActivityManagerService mActivityManagerService;
        MemBinder(ActivityManagerService activityManagerService) {
            mActivityManagerService = activityManagerService;
        }

        @Override
        protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
            ActivityManagerService service = mActivityManagerService;
            ArrayList<ProcessRecord> procs;
            synchronized (mActivityManagerService) {
                if (args != null && args.length > 0
                        && args[0].charAt(0) != '-') {
                    procs = new ArrayList<ProcessRecord>();
                    int pid = -1;
                    try {
                        pid = Integer.parseInt(args[0]);
                    } catch (NumberFormatException e) {
                        
                    }
                    for (int i=service.mLruProcesses.size()-1; i>=0; i--) {
                        ProcessRecord proc = service.mLruProcesses.get(i);
                        if (proc.pid == pid) {
                            procs.add(proc);
                        } else if (proc.processName.equals(args[0])) {
                            procs.add(proc);
                        }
                    }
                    if (procs.size() <= 0) {
                        pw.println("No process found for: " + args[0]);
                        return;
                    }
                } else {
                    procs = new ArrayList<ProcessRecord>(service.mLruProcesses);
                }
            }
            dumpApplicationMemoryUsage(fd, pw, procs, "  ", args);
        }
    }

    static class CpuBinder extends Binder {
        ActivityManagerService mActivityManagerService;
        CpuBinder(ActivityManagerService activityManagerService) {
            mActivityManagerService = activityManagerService;
        }

        @Override
        protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
            synchronized (mActivityManagerService.mProcessStatsThread) {
                pw.print(mActivityManagerService.mProcessStats.printCurrentState());
            }
        }
    }

    private ActivityManagerService() {
        String v = System.getenv("ANDROID_SIMPLE_PROCESS_MANAGEMENT");
        if (v != null && Integer.getInteger(v) != 0) {
            mSimpleProcessManagement = true;
        }
        v = System.getenv("ANDROID_DEBUG_APP");
        if (v != null) {
            mSimpleProcessManagement = true;
        }

        Slog.i(TAG, "Memory class: " + ActivityManager.staticGetMemoryClass());
        
        File dataDir = Environment.getDataDirectory();
        File systemDir = new File(dataDir, "system");
        systemDir.mkdirs();
        mBatteryStatsService = new BatteryStatsService(new File(
                systemDir, "batterystats.bin").toString());
        mBatteryStatsService.getActiveStatistics().readLocked();
        mBatteryStatsService.getActiveStatistics().writeLocked();
        
        mUsageStatsService = new UsageStatsService( new File(
                systemDir, "usagestats").toString());

        GL_ES_VERSION = SystemProperties.getInt("ro.opengles.version",
            ConfigurationInfo.GL_ES_VERSION_UNDEFINED);

        mConfiguration.setToDefaults();
        mConfiguration.locale = Locale.getDefault();
        mProcessStats.init();
        
        // Add ourself to the Watchdog monitors.
        Watchdog.getInstance().addMonitor(this);

        mProcessStatsThread = new Thread("ProcessStats") {
            public void run() {
                while (true) {
                    try {
                        try {
                            synchronized(this) {
                                final long now = SystemClock.uptimeMillis();
                                long nextCpuDelay = (mLastCpuTime.get()+MONITOR_CPU_MAX_TIME)-now;
                                long nextWriteDelay = (mLastWriteTime+BATTERY_STATS_TIME)-now;
                                //Slog.i(TAG, "Cpu delay=" + nextCpuDelay
                                //        + ", write delay=" + nextWriteDelay);
                                if (nextWriteDelay < nextCpuDelay) {
                                    nextCpuDelay = nextWriteDelay;
                                }
                                if (nextCpuDelay > 0) {
                                    mProcessStatsMutexFree.set(true);
                                    this.wait(nextCpuDelay);
                                }
                            }
                        } catch (InterruptedException e) {
                        }
                        updateCpuStatsNow();
                    } catch (Exception e) {
                        Slog.e(TAG, "Unexpected exception collecting process stats", e);
                    }
                }
            }
        };
        mProcessStatsThread.start();
    }

    @Override
    public boolean onTransact(int code, Parcel data, Parcel reply, int flags)
            throws RemoteException {
        try {
            return super.onTransact(code, data, reply, flags);
        } catch (RuntimeException e) {
            // The activity manager only throws security exceptions, so let's
            // log all others.
            if (!(e instanceof SecurityException)) {
                Slog.e(TAG, "Activity Manager Crash", e);
            }
            throw e;
        }
    }

    void updateCpuStats() {
        final long now = SystemClock.uptimeMillis();
        if (mLastCpuTime.get() >= now - MONITOR_CPU_MIN_TIME) {
            return;
        }
        if (mProcessStatsMutexFree.compareAndSet(true, false)) {
            synchronized (mProcessStatsThread) {
                mProcessStatsThread.notify();
            }
        }
    }

    void updateCpuStatsNow() {
        synchronized (mProcessStatsThread) {
            mProcessStatsMutexFree.set(false);
            final long now = SystemClock.uptimeMillis();
            boolean haveNewCpuStats = false;

            if (MONITOR_CPU_USAGE &&
                    mLastCpuTime.get() < (now-MONITOR_CPU_MIN_TIME)) {
                mLastCpuTime.set(now);
                haveNewCpuStats = true;
                mProcessStats.update();
                //Slog.i(TAG, mProcessStats.printCurrentState());
                //Slog.i(TAG, "Total CPU usage: "
                //        + mProcessStats.getTotalCpuPercent() + "%");

                // Slog the cpu usage if the property is set.
                if ("true".equals(SystemProperties.get("events.cpu"))) {
                    int user = mProcessStats.getLastUserTime();
                    int system = mProcessStats.getLastSystemTime();
                    int iowait = mProcessStats.getLastIoWaitTime();
                    int irq = mProcessStats.getLastIrqTime();
                    int softIrq = mProcessStats.getLastSoftIrqTime();
                    int idle = mProcessStats.getLastIdleTime();

                    int total = user + system + iowait + irq + softIrq + idle;
                    if (total == 0) total = 1;

                    EventLog.writeEvent(EventLogTags.CPU,
                            ((user+system+iowait+irq+softIrq) * 100) / total,
                            (user * 100) / total,
                            (system * 100) / total,
                            (iowait * 100) / total,
                            (irq * 100) / total,
                            (softIrq * 100) / total);
                }
            }
            
            long[] cpuSpeedTimes = mProcessStats.getLastCpuSpeedTimes();
            final BatteryStatsImpl bstats = mBatteryStatsService.getActiveStatistics();
            synchronized(bstats) {
                synchronized(mPidsSelfLocked) {
                    if (haveNewCpuStats) {
                        if (mBatteryStatsService.isOnBattery()) {
                            final int N = mProcessStats.countWorkingStats();
                            for (int i=0; i<N; i++) {
                                ProcessStats.Stats st
                                        = mProcessStats.getWorkingStats(i);
                                ProcessRecord pr = mPidsSelfLocked.get(st.pid);
                                if (pr != null) {
                                    BatteryStatsImpl.Uid.Proc ps = pr.batteryStats;
                                    ps.addCpuTimeLocked(st.rel_utime, st.rel_stime);
                                    ps.addSpeedStepTimes(cpuSpeedTimes);
                                } else {
                                    BatteryStatsImpl.Uid.Proc ps =
                                            bstats.getProcessStatsLocked(st.name, st.pid);
                                    if (ps != null) {
                                        ps.addCpuTimeLocked(st.rel_utime, st.rel_stime);
                                        ps.addSpeedStepTimes(cpuSpeedTimes);
                                    }
                                }
                            }
                        }
                    }
                }

                if (mLastWriteTime < (now-BATTERY_STATS_TIME)) {
                    mLastWriteTime = now;
                    mBatteryStatsService.getActiveStatistics().writeLocked();
                }
            }
        }
    }
    
    /**
     * Initialize the application bind args. These are passed to each
     * process when the bindApplication() IPC is sent to the process. They're
     * lazily setup to make sure the services are running when they're asked for.
     */
    private HashMap<String, IBinder> getCommonServicesLocked() {
        if (mAppBindArgs == null) {
            mAppBindArgs = new HashMap<String, IBinder>();

            // Setup the application init args
            mAppBindArgs.put("package", ServiceManager.getService("package"));
            mAppBindArgs.put("window", ServiceManager.getService("window"));
            mAppBindArgs.put(Context.ALARM_SERVICE,
                    ServiceManager.getService(Context.ALARM_SERVICE));
        }
        return mAppBindArgs;
    }

    private final void setFocusedActivityLocked(HistoryRecord r) {
        if (mFocusedActivity != r) {
            mFocusedActivity = r;
            mWindowManager.setFocusedApp(r, true);
        }
    }

    private final void updateLruProcessInternalLocked(ProcessRecord app,
            boolean oomAdj, boolean updateActivityTime, int bestPos) {
        // put it on the LRU to keep track of when it should be exited.
        int lrui = mLruProcesses.indexOf(app);
        if (lrui >= 0) mLruProcesses.remove(lrui);
        
        int i = mLruProcesses.size()-1;
        int skipTop = 0;
        
        app.lruSeq = mLruSeq;
        
        // compute the new weight for this process.
        if (updateActivityTime) {
            app.lastActivityTime = SystemClock.uptimeMillis();
        }
        if (app.activities.size() > 0) {
            // If this process has activities, we more strongly want to keep
            // it around.
            app.lruWeight = app.lastActivityTime;
        } else if (app.pubProviders.size() > 0) {
            // If this process contains content providers, we want to keep
            // it a little more strongly.
            app.lruWeight = app.lastActivityTime - CONTENT_APP_IDLE_OFFSET;
            // Also don't let it kick out the first few "real" hidden processes.
            skipTop = MIN_HIDDEN_APPS;
        } else {
            // If this process doesn't have activities, we less strongly
            // want to keep it around, and generally want to avoid getting
            // in front of any very recently used activities.
            app.lruWeight = app.lastActivityTime - EMPTY_APP_IDLE_OFFSET;
            // Also don't let it kick out the first few "real" hidden processes.
            skipTop = MIN_HIDDEN_APPS;
        }
        
        while (i >= 0) {
            ProcessRecord p = mLruProcesses.get(i);
            // If this app shouldn't be in front of the first N background
            // apps, then skip over that many that are currently hidden.
            if (skipTop > 0 && p.setAdj >= HIDDEN_APP_MIN_ADJ) {
                skipTop--;
            }
            if (p.lruWeight <= app.lruWeight || i < bestPos) {
                mLruProcesses.add(i+1, app);
                break;
            }
            i--;
        }
        if (i < 0) {
            mLruProcesses.add(0, app);
        }
        
        // If the app is currently using a content provider or service,
        // bump those processes as well.
        if (app.connections.size() > 0) {
            for (ConnectionRecord cr : app.connections) {
                if (cr.binding != null && cr.binding.service != null
                        && cr.binding.service.app != null
                        && cr.binding.service.app.lruSeq != mLruSeq) {
                    updateLruProcessInternalLocked(cr.binding.service.app, oomAdj,
                            updateActivityTime, i+1);
                }
            }
        }
        if (app.conProviders.size() > 0) {
            for (ContentProviderRecord cpr : app.conProviders.keySet()) {
                if (cpr.app != null && cpr.app.lruSeq != mLruSeq) {
                    updateLruProcessInternalLocked(cpr.app, oomAdj,
                            updateActivityTime, i+1);
                }
            }
        }
        
        //Slog.i(TAG, "Putting proc to front: " + app.processName);
        if (oomAdj) {
            updateOomAdjLocked();
        }
    }

    private final void updateLruProcessLocked(ProcessRecord app,
            boolean oomAdj, boolean updateActivityTime) {
        mLruSeq++;
        updateLruProcessInternalLocked(app, oomAdj, updateActivityTime, 0);
    }
    
    private final boolean updateLRUListLocked(HistoryRecord r) {
        final boolean hadit = mLRUActivities.remove(r);
        mLRUActivities.add(r);
        return hadit;
    }

    private final HistoryRecord topRunningActivityLocked(HistoryRecord notTop) {
        int i = mHistory.size()-1;
        while (i >= 0) {
            HistoryRecord r = (HistoryRecord)mHistory.get(i);
            if (!r.finishing && r != notTop) {
                return r;
            }
            i--;
        }
        return null;
    }

    private final HistoryRecord topRunningNonDelayedActivityLocked(HistoryRecord notTop) {
        int i = mHistory.size()-1;
        while (i >= 0) {
            HistoryRecord r = (HistoryRecord)mHistory.get(i);
            if (!r.finishing && !r.delayedResume && r != notTop) {
                return r;
            }
            i--;
        }
        return null;
    }

    /**
     * This is a simplified version of topRunningActivityLocked that provides a number of
     * optional skip-over modes.  It is intended for use with the ActivityController hook only.
     * 
     * @param token If non-null, any history records matching this token will be skipped.
     * @param taskId If non-zero, we'll attempt to skip over records with the same task ID.
     * 
     * @return Returns the HistoryRecord of the next activity on the stack.
     */
    private final HistoryRecord topRunningActivityLocked(IBinder token, int taskId) {
        int i = mHistory.size()-1;
        while (i >= 0) {
            HistoryRecord r = (HistoryRecord)mHistory.get(i);
            // Note: the taskId check depends on real taskId fields being non-zero
            if (!r.finishing && (token != r) && (taskId != r.task.taskId)) {
                return r;
            }
            i--;
        }
        return null;
    }

    private final ProcessRecord getProcessRecordLocked(
            String processName, int uid) {
        if (uid == Process.SYSTEM_UID) {
            // The system gets to run in any process.  If there are multiple
            // processes with the same uid, just pick the first (this
            // should never happen).
            SparseArray<ProcessRecord> procs = mProcessNames.getMap().get(
                    processName);
            return procs != null ? procs.valueAt(0) : null;
        }
        ProcessRecord proc = mProcessNames.get(processName, uid);
        return proc;
    }

    private void ensurePackageDexOpt(String packageName) {
        IPackageManager pm = ActivityThread.getPackageManager();
        try {
            if (pm.performDexOpt(packageName)) {
                mDidDexOpt = true;
            }
        } catch (RemoteException e) {
        }
    }
    
    private boolean isNextTransitionForward() {
        int transit = mWindowManager.getPendingAppTransition();
        return transit == WindowManagerPolicy.TRANSIT_ACTIVITY_OPEN
                || transit == WindowManagerPolicy.TRANSIT_TASK_OPEN
                || transit == WindowManagerPolicy.TRANSIT_TASK_TO_FRONT;
    }
    
    private final boolean realStartActivityLocked(HistoryRecord r,
            ProcessRecord app, boolean andResume, boolean checkConfig)
            throws RemoteException {

        r.startFreezingScreenLocked(app, 0);
        mWindowManager.setAppVisibility(r, true);

        // Have the window manager re-evaluate the orientation of
        // the screen based on the new activity order.  Note that
        // as a result of this, it can call back into the activity
        // manager with a new orientation.  We don't care about that,
        // because the activity is not currently running so we are
        // just restarting it anyway.
        if (checkConfig) {
            Configuration config = mWindowManager.updateOrientationFromAppTokens(
                    mConfiguration,
                    r.mayFreezeScreenLocked(app) ? r : null);
            updateConfigurationLocked(config, r);
        }

        r.app = app;

        if (localLOGV) Slog.v(TAG, "Launching: " + r);

        int idx = app.activities.indexOf(r);
        if (idx < 0) {
            app.activities.add(r);
        }
        updateLruProcessLocked(app, true, true);

        try {
            if (app.thread == null) {
                throw new RemoteException();
            }
            List<ResultInfo> results = null;
            List<Intent> newIntents = null;
            if (andResume) {
                results = r.results;
                newIntents = r.newIntents;
            }
            if (DEBUG_SWITCH) Slog.v(TAG, "Launching: " + r
                    + " icicle=" + r.icicle
                    + " with results=" + results + " newIntents=" + newIntents
                    + " andResume=" + andResume);
            if (andResume) {
                EventLog.writeEvent(EventLogTags.AM_RESTART_ACTIVITY,
                        System.identityHashCode(r),
                        r.task.taskId, r.shortComponentName);
            }
            if (r.isHomeActivity) {
                mHomeProcess = app;
            }
            ensurePackageDexOpt(r.intent.getComponent().getPackageName());
            app.thread.scheduleLaunchActivity(new Intent(r.intent), r,
                    System.identityHashCode(r),
                    r.info, r.icicle, results, newIntents, !andResume,
                    isNextTransitionForward());
        } catch (RemoteException e) {
            if (r.launchFailed) {
                // This is the second time we failed -- finish activity
                // and give up.
                Slog.e(TAG, "Second failure launching "
                      + r.intent.getComponent().flattenToShortString()
                      + ", giving up", e);
                appDiedLocked(app, app.pid, app.thread);
                requestFinishActivityLocked(r, Activity.RESULT_CANCELED, null,
                        "2nd-crash");
                return false;
            }

            // This is the first time we failed -- restart process and
            // retry.
            app.activities.remove(r);
            throw e;
        }

        r.launchFailed = false;
        if (updateLRUListLocked(r)) {
            Slog.w(TAG, "Activity " + r
                  + " being launched, but already in LRU list");
        }

        if (andResume) {
            // As part of the process of launching, ActivityThread also performs
            // a resume.
            r.state = ActivityState.RESUMED;
            r.icicle = null;
            r.haveState = false;
            r.stopped = false;
            mResumedActivity = r;
            r.task.touchActiveTime();
            completeResumeLocked(r);
            pauseIfSleepingLocked();                
        } else {
            // This activity is not starting in the resumed state... which
            // should look like we asked it to pause+stop (but remain visible),
            // and it has done so and reported back the current icicle and
            // other state.
            r.state = ActivityState.STOPPED;
            r.stopped = true;
        }

        // Launch the new version setup screen if needed.  We do this -after-
        // launching the initial activity (that is, home), so that it can have
        // a chance to initialize itself while in the background, making the
        // switch back to it faster and look better.
        startSetupActivityLocked();
        
        return true;
    }

    private final void startSpecificActivityLocked(HistoryRecord r,
            boolean andResume, boolean checkConfig) {
        // Is this activity's application already running?
        ProcessRecord app = getProcessRecordLocked(r.processName,
                r.info.applicationInfo.uid);
        
        if (r.startTime == 0) {
            r.startTime = SystemClock.uptimeMillis();
            if (mInitialStartTime == 0) {
                mInitialStartTime = r.startTime;
            }
        } else if (mInitialStartTime == 0) {
            mInitialStartTime = SystemClock.uptimeMillis();
        }
        
        if (app != null && app.thread != null) {
            try {
                realStartActivityLocked(r, app, andResume, checkConfig);
                return;
            } catch (RemoteException e) {
                Slog.w(TAG, "Exception when starting activity "
                        + r.intent.getComponent().flattenToShortString(), e);
            }

            // If a dead object exception was thrown -- fall through to
            // restart the application.
        }

        startProcessLocked(r.processName, r.info.applicationInfo, true, 0,
                "activity", r.intent.getComponent(), false);
    }

    private final ProcessRecord startProcessLocked(String processName,
            ApplicationInfo info, boolean knownToBeDead, int intentFlags,
            String hostingType, ComponentName hostingName, boolean allowWhileBooting) {
        ProcessRecord app = getProcessRecordLocked(processName, info.uid);
        // We don't have to do anything more if:
        // (1) There is an existing application record; and
        // (2) The caller doesn't think it is dead, OR there is no thread
        //     object attached to it so we know it couldn't have crashed; and
        // (3) There is a pid assigned to it, so it is either starting or
        //     already running.
        if (DEBUG_PROCESSES) Slog.v(TAG, "startProcess: name=" + processName
                + " app=" + app + " knownToBeDead=" + knownToBeDead
                + " thread=" + (app != null ? app.thread : null)
                + " pid=" + (app != null ? app.pid : -1));
        if (app != null && app.pid > 0) {
            if (!knownToBeDead || app.thread == null) {
                // We already have the app running, or are waiting for it to
                // come up (we have a pid but not yet its thread), so keep it.
                return app;
            } else {
                // An application record is attached to a previous process,
                // clean it up now.
                handleAppDiedLocked(app, true);
            }
        }

        String hostingNameStr = hostingName != null
                ? hostingName.flattenToShortString() : null;
        
        if ((intentFlags&Intent.FLAG_FROM_BACKGROUND) != 0) {
            // If we are in the background, then check to see if this process
            // is bad.  If so, we will just silently fail.
            if (mBadProcesses.get(info.processName, info.uid) != null) {
                return null;
            }
        } else {
            // When the user is explicitly starting a process, then clear its
            // crash count so that we won't make it bad until they see at
            // least one crash dialog again, and make the process good again
            // if it had been bad.
            mProcessCrashTimes.remove(info.processName, info.uid);
            if (mBadProcesses.get(info.processName, info.uid) != null) {
                EventLog.writeEvent(EventLogTags.AM_PROC_GOOD, info.uid,
                        info.processName);
                mBadProcesses.remove(info.processName, info.uid);
                if (app != null) {
                    app.bad = false;
                }
            }
        }
        
        if (app == null) {
            app = newProcessRecordLocked(null, info, processName);
            mProcessNames.put(processName, info.uid, app);
        } else {
            // If this is a new package in the process, add the package to the list
            app.addPackage(info.packageName);
        }

        // If the system is not ready yet, then hold off on starting this
        // process until it is.
        if (!mSystemReady
                && !isAllowedWhileBooting(info)
                && !allowWhileBooting) {
            if (!mProcessesOnHold.contains(app)) {
                mProcessesOnHold.add(app);
            }
            return app;
        }

        startProcessLocked(app, hostingType, hostingNameStr);
        return (app.pid != 0) ? app : null;
    }

    boolean isAllowedWhileBooting(ApplicationInfo ai) {
        return (ai.flags&ApplicationInfo.FLAG_PERSISTENT) != 0;
    }
    
    private final void startProcessLocked(ProcessRecord app,
            String hostingType, String hostingNameStr) {
        if (app.pid > 0 && app.pid != MY_PID) {
            synchronized (mPidsSelfLocked) {
                mPidsSelfLocked.remove(app.pid);
                mHandler.removeMessages(PROC_START_TIMEOUT_MSG, app);
            }
            app.pid = 0;
        }

        mProcessesOnHold.remove(app);

        updateCpuStats();
        
        System.arraycopy(mProcDeaths, 0, mProcDeaths, 1, mProcDeaths.length-1);
        mProcDeaths[0] = 0;
        
        try {
            int uid = app.info.uid;
            int[] gids = null;
            try {
                gids = mContext.getPackageManager().getPackageGids(
                        app.info.packageName);
            } catch (PackageManager.NameNotFoundException e) {
                Slog.w(TAG, "Unable to retrieve gids", e);
            }
            if (mFactoryTest != SystemServer.FACTORY_TEST_OFF) {
                if (mFactoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL
                        && mTopComponent != null
                        && app.processName.equals(mTopComponent.getPackageName())) {
                    uid = 0;
                }
                if (mFactoryTest == SystemServer.FACTORY_TEST_HIGH_LEVEL
                        && (app.info.flags&ApplicationInfo.FLAG_FACTORY_TEST) != 0) {
                    uid = 0;
                }
            }
            int debugFlags = 0;
            if ((app.info.flags & ApplicationInfo.FLAG_DEBUGGABLE) != 0) {
                debugFlags |= Zygote.DEBUG_ENABLE_DEBUGGER;
            }
            // Run the app in safe mode if its manifest requests so or the
            // system is booted in safe mode.
            if ((app.info.flags & ApplicationInfo.FLAG_VM_SAFE_MODE) != 0 ||
                Zygote.systemInSafeMode == true) {
                debugFlags |= Zygote.DEBUG_ENABLE_SAFEMODE;
            }
            if ("1".equals(SystemProperties.get("debug.checkjni"))) {
                debugFlags |= Zygote.DEBUG_ENABLE_CHECKJNI;
            }
            if ("1".equals(SystemProperties.get("debug.assert"))) {
                debugFlags |= Zygote.DEBUG_ENABLE_ASSERT;
            }
            int pid = Process.start("android.app.ActivityThread",
                    mSimpleProcessManagement ? app.processName : null, uid, uid,
                    gids, debugFlags, null);
            BatteryStatsImpl bs = app.batteryStats.getBatteryStats();
            synchronized (bs) {
                if (bs.isOnBattery()) {
                    app.batteryStats.incStartsLocked();
                }
            }
            
            EventLog.writeEvent(EventLogTags.AM_PROC_START, pid, uid,
                    app.processName, hostingType,
                    hostingNameStr != null ? hostingNameStr : "");
            
            if (app.persistent) {
                Watchdog.getInstance().processStarted(app, app.processName, pid);
            }
            
            StringBuilder buf = mStringBuilder;
            buf.setLength(0);
            buf.append("Start proc ");
            buf.append(app.processName);
            buf.append(" for ");
            buf.append(hostingType);
            if (hostingNameStr != null) {
                buf.append(" ");
                buf.append(hostingNameStr);
            }
            buf.append(": pid=");
            buf.append(pid);
            buf.append(" uid=");
            buf.append(uid);
            buf.append(" gids={");
            if (gids != null) {
                for (int gi=0; gi<gids.length; gi++) {
                    if (gi != 0) buf.append(", ");
                    buf.append(gids[gi]);

                }
            }
            buf.append("}");
            Slog.i(TAG, buf.toString());
            if (pid == 0 || pid == MY_PID) {
                // Processes are being emulated with threads.
                app.pid = MY_PID;
                app.removed = false;
                mStartingProcesses.add(app);
            } else if (pid > 0) {
                app.pid = pid;
                app.removed = false;
                synchronized (mPidsSelfLocked) {
                    this.mPidsSelfLocked.put(pid, app);
                    Message msg = mHandler.obtainMessage(PROC_START_TIMEOUT_MSG);
                    msg.obj = app;
                    mHandler.sendMessageDelayed(msg, PROC_START_TIMEOUT);
                }
            } else {
                app.pid = 0;
                RuntimeException e = new RuntimeException(
                        "Failure starting process " + app.processName
                        + ": returned pid=" + pid);
                Slog.e(TAG, e.getMessage(), e);
            }
        } catch (RuntimeException e) {
            // XXX do better error recovery.
            app.pid = 0;
            Slog.e(TAG, "Failure starting process " + app.processName, e);
        }
    }

    private final void startPausingLocked(boolean userLeaving, boolean uiSleeping) {
        if (mPausingActivity != null) {
            RuntimeException e = new RuntimeException();
            Slog.e(TAG, "Trying to pause when pause is already pending for "
                  + mPausingActivity, e);
        }
        HistoryRecord prev = mResumedActivity;
        if (prev == null) {
            RuntimeException e = new RuntimeException();
            Slog.e(TAG, "Trying to pause when nothing is resumed", e);
            resumeTopActivityLocked(null);
            return;
        }
        if (DEBUG_PAUSE) Slog.v(TAG, "Start pausing: " + prev);
        mResumedActivity = null;
        mPausingActivity = prev;
        mLastPausedActivity = prev;
        prev.state = ActivityState.PAUSING;
        prev.task.touchActiveTime();

        updateCpuStats();
        
        if (prev.app != null && prev.app.thread != null) {
            if (DEBUG_PAUSE) Slog.v(TAG, "Enqueueing pending pause: " + prev);
            try {
                EventLog.writeEvent(EventLogTags.AM_PAUSE_ACTIVITY,
                        System.identityHashCode(prev),
                        prev.shortComponentName);
                prev.app.thread.schedulePauseActivity(prev, prev.finishing, userLeaving,
                        prev.configChangeFlags);
                updateUsageStats(prev, false);
            } catch (Exception e) {
                // Ignore exception, if process died other code will cleanup.
                Slog.w(TAG, "Exception thrown during pause", e);
                mPausingActivity = null;
                mLastPausedActivity = null;
            }
        } else {
            mPausingActivity = null;
            mLastPausedActivity = null;
        }

        // If we are not going to sleep, we want to ensure the device is
        // awake until the next activity is started.
        if (!mSleeping && !mShuttingDown) {
            mLaunchingActivity.acquire();
            if (!mHandler.hasMessages(LAUNCH_TIMEOUT_MSG)) {
                // To be safe, don't allow the wake lock to be held for too long.
                Message msg = mHandler.obtainMessage(LAUNCH_TIMEOUT_MSG);
                mHandler.sendMessageDelayed(msg, LAUNCH_TIMEOUT);
            }
        }


        if (mPausingActivity != null) {
            // Have the window manager pause its key dispatching until the new
            // activity has started.  If we're pausing the activity just because
            // the screen is being turned off and the UI is sleeping, don't interrupt
            // key dispatch; the same activity will pick it up again on wakeup.
            if (!uiSleeping) {
                prev.pauseKeyDispatchingLocked();
            } else {
                if (DEBUG_PAUSE) Slog.v(TAG, "Key dispatch not paused for screen off");
            }

            // Schedule a pause timeout in case the app doesn't respond.
            // We don't give it much time because this directly impacts the
            // responsiveness seen by the user.
            Message msg = mHandler.obtainMessage(PAUSE_TIMEOUT_MSG);
            msg.obj = prev;
            mHandler.sendMessageDelayed(msg, PAUSE_TIMEOUT);
            if (DEBUG_PAUSE) Slog.v(TAG, "Waiting for pause to complete...");
        } else {
            // This activity failed to schedule the
            // pause, so just treat it as being paused now.
            if (DEBUG_PAUSE) Slog.v(TAG, "Activity not running, resuming next.");
            resumeTopActivityLocked(null);
        }
    }

    private final void completePauseLocked() {
        HistoryRecord prev = mPausingActivity;
        if (DEBUG_PAUSE) Slog.v(TAG, "Complete pause: " + prev);
        
        if (prev != null) {
            if (prev.finishing) {
                if (DEBUG_PAUSE) Slog.v(TAG, "Executing finish of activity: " + prev);
                prev = finishCurrentActivityLocked(prev, FINISH_AFTER_VISIBLE);
            } else if (prev.app != null) {
                if (DEBUG_PAUSE) Slog.v(TAG, "Enqueueing pending stop: " + prev);
                if (prev.waitingVisible) {
                    prev.waitingVisible = false;
                    mWaitingVisibleActivities.remove(prev);
                    if (DEBUG_SWITCH || DEBUG_PAUSE) Slog.v(
                            TAG, "Complete pause, no longer waiting: " + prev);
                }
                if (prev.configDestroy) {
                    // The previous is being paused because the configuration
                    // is changing, which means it is actually stopping...
                    // To juggle the fact that we are also starting a new
                    // instance right now, we need to first completely stop
                    // the current instance before starting the new one.
                    if (DEBUG_PAUSE) Slog.v(TAG, "Destroying after pause: " + prev);
                    destroyActivityLocked(prev, true);
                } else {
                    mStoppingActivities.add(prev);
                    if (mStoppingActivities.size() > 3) {
                        // If we already have a few activities waiting to stop,
                        // then give up on things going idle and start clearing
                        // them out.
                        if (DEBUG_PAUSE) Slog.v(TAG, "To many pending stops, forcing idle");
                        Message msg = Message.obtain();
                        msg.what = ActivityManagerService.IDLE_NOW_MSG;
                        mHandler.sendMessage(msg);
                    }
                }
            } else {
                if (DEBUG_PAUSE) Slog.v(TAG, "App died during pause, not stopping: " + prev);
                prev = null;
            }
            mPausingActivity = null;
        }

        if (!mSleeping && !mShuttingDown) {
            resumeTopActivityLocked(prev);
        } else {
            if (mGoingToSleep.isHeld()) {
                mGoingToSleep.release();
            }
            if (mShuttingDown) {
                notifyAll();
            }
        }
        
        if (prev != null) {
            prev.resumeKeyDispatchingLocked();
        }

        if (prev.app != null && prev.cpuTimeAtResume > 0 && mBatteryStatsService.isOnBattery()) {
            long diff = 0;
            synchronized (mProcessStatsThread) {
                diff = mProcessStats.getCpuTimeForPid(prev.app.pid) - prev.cpuTimeAtResume;
            }
            if (diff > 0) {
                BatteryStatsImpl bsi = mBatteryStatsService.getActiveStatistics();
                synchronized (bsi) {
                    BatteryStatsImpl.Uid.Proc ps =
                            bsi.getProcessStatsLocked(prev.info.applicationInfo.uid,
                            prev.info.packageName);
                    if (ps != null) {
                        ps.addForegroundTimeLocked(diff);
                    }
                }
            }
        }
        prev.cpuTimeAtResume = 0; // reset it
    }

    /**
     * Once we know that we have asked an application to put an activity in
     * the resumed state (either by launching it or explicitly telling it),
     * this function updates the rest of our state to match that fact.
     */
    private final void completeResumeLocked(HistoryRecord next) {
        next.idle = false;
        next.results = null;
        next.newIntents = null;

        // schedule an idle timeout in case the app doesn't do it for us.
        Message msg = mHandler.obtainMessage(IDLE_TIMEOUT_MSG);
        msg.obj = next;
        mHandler.sendMessageDelayed(msg, IDLE_TIMEOUT);

        if (false) {
            // The activity was never told to pause, so just keep
            // things going as-is.  To maintain our own state,
            // we need to emulate it coming back and saying it is
            // idle.
            msg = mHandler.obtainMessage(IDLE_NOW_MSG);
            msg.obj = next;
            mHandler.sendMessage(msg);
        }

        reportResumedActivityLocked(next);
        
        next.thumbnail = null;
        setFocusedActivityLocked(next);
        next.resumeKeyDispatchingLocked();
        ensureActivitiesVisibleLocked(null, 0);
        mWindowManager.executeAppTransition();
        mNoAnimActivities.clear();

        // Mark the point when the activity is resuming
        // TODO: To be more accurate, the mark should be before the onCreate,
        //       not after the onResume. But for subsequent starts, onResume is fine.
        if (next.app != null) {
            synchronized (mProcessStatsThread) {
                next.cpuTimeAtResume = mProcessStats.getCpuTimeForPid(next.app.pid);
            }
        } else {
            next.cpuTimeAtResume = 0; // Couldn't get the cpu time of process
        }
    }

    /**
     * Make sure that all activities that need to be visible (that is, they
     * currently can be seen by the user) actually are.
     */
    private final void ensureActivitiesVisibleLocked(HistoryRecord top,
            HistoryRecord starting, String onlyThisProcess, int configChanges) {
        if (DEBUG_VISBILITY) Slog.v(
                TAG, "ensureActivitiesVisible behind " + top
                + " configChanges=0x" + Integer.toHexString(configChanges));

        // If the top activity is not fullscreen, then we need to
        // make sure any activities under it are now visible.
        final int count = mHistory.size();
        int i = count-1;
        while (mHistory.get(i) != top) {
            i--;
        }
        HistoryRecord r;
        boolean behindFullscreen = false;
        for (; i>=0; i--) {
            r = (HistoryRecord)mHistory.get(i);
            if (DEBUG_VISBILITY) Slog.v(
                    TAG, "Make visible? " + r + " finishing=" + r.finishing
                    + " state=" + r.state);
            if (r.finishing) {
                continue;
            }
            
            final boolean doThisProcess = onlyThisProcess == null
                    || onlyThisProcess.equals(r.processName);
            
            // First: if this is not the current activity being started, make
            // sure it matches the current configuration.
            if (r != starting && doThisProcess) {
                ensureActivityConfigurationLocked(r, 0);
            }
            
            if (r.app == null || r.app.thread == null) {
                if (onlyThisProcess == null
                        || onlyThisProcess.equals(r.processName)) {
                    // This activity needs to be visible, but isn't even
                    // running...  get it started, but don't resume it
                    // at this point.
                    if (DEBUG_VISBILITY) Slog.v(
                            TAG, "Start and freeze screen for " + r);
                    if (r != starting) {
                        r.startFreezingScreenLocked(r.app, configChanges);
                    }
                    if (!r.visible) {
                        if (DEBUG_VISBILITY) Slog.v(
                                TAG, "Starting and making visible: " + r);
                        mWindowManager.setAppVisibility(r, true);
                    }
                    if (r != starting) {
                        startSpecificActivityLocked(r, false, false);
                    }
                }

            } else if (r.visible) {
                // If this activity is already visible, then there is nothing
                // else to do here.
                if (DEBUG_VISBILITY) Slog.v(
                        TAG, "Skipping: already visible at " + r);
                r.stopFreezingScreenLocked(false);

            } else if (onlyThisProcess == null) {
                // This activity is not currently visible, but is running.
                // Tell it to become visible.
                r.visible = true;
                if (r.state != ActivityState.RESUMED && r != starting) {
                    // If this activity is paused, tell it
                    // to now show its window.
                    if (DEBUG_VISBILITY) Slog.v(
                            TAG, "Making visible and scheduling visibility: " + r);
                    try {
                        mWindowManager.setAppVisibility(r, true);
                        r.app.thread.scheduleWindowVisibility(r, true);
                        r.stopFreezingScreenLocked(false);
                    } catch (Exception e) {
                        // Just skip on any failure; we'll make it
                        // visible when it next restarts.
                        Slog.w(TAG, "Exception thrown making visibile: "
                                + r.intent.getComponent(), e);
                    }
                }
            }

            // Aggregate current change flags.
            configChanges |= r.configChangeFlags;

            if (r.fullscreen) {
                // At this point, nothing else needs to be shown
                if (DEBUG_VISBILITY) Slog.v(
                        TAG, "Stopping: fullscreen at " + r);
                behindFullscreen = true;
                i--;
                break;
            }
        }

        // Now for any activities that aren't visible to the user, make
        // sure they no longer are keeping the screen frozen.
        while (i >= 0) {
            r = (HistoryRecord)mHistory.get(i);
            if (DEBUG_VISBILITY) Slog.v(
                    TAG, "Make invisible? " + r + " finishing=" + r.finishing
                    + " state=" + r.state
                    + " behindFullscreen=" + behindFullscreen);
            if (!r.finishing) {
                if (behindFullscreen) {
                    if (r.visible) {
                        if (DEBUG_VISBILITY) Slog.v(
                                TAG, "Making invisible: " + r);
                        r.visible = false;
                        try {
                            mWindowManager.setAppVisibility(r, false);
                            if ((r.state == ActivityState.STOPPING
                                    || r.state == ActivityState.STOPPED)
                                    && r.app != null && r.app.thread != null) {
                                if (DEBUG_VISBILITY) Slog.v(
                                        TAG, "Scheduling invisibility: " + r);
                                r.app.thread.scheduleWindowVisibility(r, false);
                            }
                        } catch (Exception e) {
                            // Just skip on any failure; we'll make it
                            // visible when it next restarts.
                            Slog.w(TAG, "Exception thrown making hidden: "
                                    + r.intent.getComponent(), e);
                        }
                    } else {
                        if (DEBUG_VISBILITY) Slog.v(
                                TAG, "Already invisible: " + r);
                    }
                } else if (r.fullscreen) {
                    if (DEBUG_VISBILITY) Slog.v(
                            TAG, "Now behindFullscreen: " + r);
                    behindFullscreen = true;
                }
            }
            i--;
        }
    }

    /**
     * Version of ensureActivitiesVisible that can easily be called anywhere.
     */
    private final void ensureActivitiesVisibleLocked(HistoryRecord starting,
            int configChanges) {
        HistoryRecord r = topRunningActivityLocked(null);
        if (r != null) {
            ensureActivitiesVisibleLocked(r, starting, null, configChanges);
        }
    }
    
    private void updateUsageStats(HistoryRecord resumedComponent, boolean resumed) {
        if (resumed) {
            mUsageStatsService.noteResumeComponent(resumedComponent.realActivity);
        } else {
            mUsageStatsService.notePauseComponent(resumedComponent.realActivity);
        }
    }

    private boolean startHomeActivityLocked() {
        if (mFactoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL
                && mTopAction == null) {
            // We are running in factory test mode, but unable to find
            // the factory test app, so just sit around displaying the
            // error message and don't try to start anything.
            return false;
        }
        Intent intent = new Intent(
            mTopAction,
            mTopData != null ? Uri.parse(mTopData) : null);
        intent.setComponent(mTopComponent);
        if (mFactoryTest != SystemServer.FACTORY_TEST_LOW_LEVEL) {
            intent.addCategory(Intent.CATEGORY_HOME);
        }
        ActivityInfo aInfo =
            intent.resolveActivityInfo(mContext.getPackageManager(),
                    STOCK_PM_FLAGS);
        if (aInfo != null) {
            intent.setComponent(new ComponentName(
                    aInfo.applicationInfo.packageName, aInfo.name));
            // Don't do this if the home app is currently being
            // instrumented.
            ProcessRecord app = getProcessRecordLocked(aInfo.processName,
                    aInfo.applicationInfo.uid);
            if (app == null || app.instrumentationClass == null) {
                intent.setFlags(intent.getFlags() | Intent.FLAG_ACTIVITY_NEW_TASK);
                startActivityLocked(null, intent, null, null, 0, aInfo,
                        null, null, 0, 0, 0, false, false);
            }
        }
        
        
        return true;
    }
    
    /**
     * Starts the "new version setup screen" if appropriate.
     */
    private void startSetupActivityLocked() {
        // Only do this once per boot.
        if (mCheckedForSetup) {
            return;
        }
        
        // We will show this screen if the current one is a different
        // version than the last one shown, and we are not running in
        // low-level factory test mode.
        final ContentResolver resolver = mContext.getContentResolver();
        if (mFactoryTest != SystemServer.FACTORY_TEST_LOW_LEVEL &&
                Settings.Secure.getInt(resolver,
                        Settings.Secure.DEVICE_PROVISIONED, 0) != 0) {
            mCheckedForSetup = true;
            
            // See if we should be showing the platform update setup UI.
            Intent intent = new Intent(Intent.ACTION_UPGRADE_SETUP);
            List<ResolveInfo> ris = mSelf.mContext.getPackageManager()
                    .queryIntentActivities(intent, PackageManager.GET_META_DATA);
            
            // We don't allow third party apps to replace this.
            ResolveInfo ri = null;
            for (int i=0; ris != null && i<ris.size(); i++) {
                if ((ris.get(i).activityInfo.applicationInfo.flags
                        & ApplicationInfo.FLAG_SYSTEM) != 0) {
                    ri = ris.get(i);
                    break;
                }
            }
            
            if (ri != null) {
                String vers = ri.activityInfo.metaData != null
                        ? ri.activityInfo.metaData.getString(Intent.METADATA_SETUP_VERSION)
                        : null;
                if (vers == null && ri.activityInfo.applicationInfo.metaData != null) {
                    vers = ri.activityInfo.applicationInfo.metaData.getString(
                            Intent.METADATA_SETUP_VERSION);
                }
                String lastVers = Settings.Secure.getString(
                        resolver, Settings.Secure.LAST_SETUP_SHOWN);
                if (vers != null && !vers.equals(lastVers)) {
                    intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                    intent.setComponent(new ComponentName(
                            ri.activityInfo.packageName, ri.activityInfo.name));
                    startActivityLocked(null, intent, null, null, 0, ri.activityInfo,
                            null, null, 0, 0, 0, false, false);
                }
            }
        }
    }
    
    private void reportResumedActivityLocked(HistoryRecord r) {
        //Slog.i(TAG, "**** REPORT RESUME: " + r);
        
        final int identHash = System.identityHashCode(r);
        updateUsageStats(r, true);
        
        int i = mWatchers.beginBroadcast();
        while (i > 0) {
            i--;
            IActivityWatcher w = mWatchers.getBroadcastItem(i);
            if (w != null) {
                try {
                    w.activityResuming(identHash);
                } catch (RemoteException e) {
                }
            }
        }
        mWatchers.finishBroadcast();
    }
    
    /**
     * Ensure that the top activity in the stack is resumed.
     *
     * @param prev The previously resumed activity, for when in the process
     * of pausing; can be null to call from elsewhere.
     *
     * @return Returns true if something is being resumed, or false if
     * nothing happened.
     */
    private final boolean resumeTopActivityLocked(HistoryRecord prev) {
        // Find the first activity that is not finishing.
        HistoryRecord next = topRunningActivityLocked(null);

        // Remember how we'll process this pause/resume situation, and ensure
        // that the state is reset however we wind up proceeding.
        final boolean userLeaving = mUserLeaving;
        mUserLeaving = false;

        if (next == null) {
            // There are no more activities!  Let's just start up the
            // Launcher...
            return startHomeActivityLocked();
        }

        next.delayedResume = false;
        
        // If the top activity is the resumed one, nothing to do.
        if (mResumedActivity == next && next.state == ActivityState.RESUMED) {
            // Make sure we have executed any pending transitions, since there
            // should be nothing left to do at this point.
            mWindowManager.executeAppTransition();
            mNoAnimActivities.clear();
            return false;
        }

        // If we are sleeping, and there is no resumed activity, and the top
        // activity is paused, well that is the state we want.
        if ((mSleeping || mShuttingDown)
                && mLastPausedActivity == next && next.state == ActivityState.PAUSED) {
            // Make sure we have executed any pending transitions, since there
            // should be nothing left to do at this point.
            mWindowManager.executeAppTransition();
            mNoAnimActivities.clear();
            return false;
        }
        
        // The activity may be waiting for stop, but that is no longer
        // appropriate for it.
        mStoppingActivities.remove(next);
        mWaitingVisibleActivities.remove(next);

        if (DEBUG_SWITCH) Slog.v(TAG, "Resuming " + next);

        // If we are currently pausing an activity, then don't do anything
        // until that is done.
        if (mPausingActivity != null) {
            if (DEBUG_SWITCH) Slog.v(TAG, "Skip resume: pausing=" + mPausingActivity);
            return false;
        }

        // We need to start pausing the current activity so the top one
        // can be resumed...
        if (mResumedActivity != null) {
            if (DEBUG_SWITCH) Slog.v(TAG, "Skip resume: need to start pausing");
            startPausingLocked(userLeaving, false);
            return true;
        }

        if (prev != null && prev != next) {
            if (!prev.waitingVisible && next != null && !next.nowVisible) {
                prev.waitingVisible = true;
                mWaitingVisibleActivities.add(prev);
                if (DEBUG_SWITCH) Slog.v(
                        TAG, "Resuming top, waiting visible to hide: " + prev);
            } else {
                // The next activity is already visible, so hide the previous
                // activity's windows right now so we can show the new one ASAP.
                // We only do this if the previous is finishing, which should mean
                // it is on top of the one being resumed so hiding it quickly
                // is good.  Otherwise, we want to do the normal route of allowing
                // the resumed activity to be shown so we can decide if the
                // previous should actually be hidden depending on whether the
                // new one is found to be full-screen or not.
                if (prev.finishing) {
                    mWindowManager.setAppVisibility(prev, false);
                    if (DEBUG_SWITCH) Slog.v(TAG, "Not waiting for visible to hide: "
                            + prev + ", waitingVisible="
                            + (prev != null ? prev.waitingVisible : null)
                            + ", nowVisible=" + next.nowVisible);
                } else {
                    if (DEBUG_SWITCH) Slog.v(TAG, "Previous already visible but still waiting to hide: "
                        + prev + ", waitingVisible="
                        + (prev != null ? prev.waitingVisible : null)
                        + ", nowVisible=" + next.nowVisible);
                }
            }
        }

        // We are starting up the next activity, so tell the window manager
        // that the previous one will be hidden soon.  This way it can know
        // to ignore it when computing the desired screen orientation.
        if (prev != null) {
            if (prev.finishing) {
                if (DEBUG_TRANSITION) Slog.v(TAG,
                        "Prepare close transition: prev=" + prev);
                if (mNoAnimActivities.contains(prev)) {
                    mWindowManager.prepareAppTransition(WindowManagerPolicy.TRANSIT_NONE);
                } else {
                    mWindowManager.prepareAppTransition(prev.task == next.task
                            ? WindowManagerPolicy.TRANSIT_ACTIVITY_CLOSE
                            : WindowManagerPolicy.TRANSIT_TASK_CLOSE);
                }
                mWindowManager.setAppWillBeHidden(prev);
                mWindowManager.setAppVisibility(prev, false);
            } else {
                if (DEBUG_TRANSITION) Slog.v(TAG,
                        "Prepare open transition: prev=" + prev);
                if (mNoAnimActivities.contains(next)) {
                    mWindowManager.prepareAppTransition(WindowManagerPolicy.TRANSIT_NONE);
                } else {
                    mWindowManager.prepareAppTransition(prev.task == next.task
                            ? WindowManagerPolicy.TRANSIT_ACTIVITY_OPEN
                            : WindowManagerPolicy.TRANSIT_TASK_OPEN);
                }
            }
            if (false) {
                mWindowManager.setAppWillBeHidden(prev);
                mWindowManager.setAppVisibility(prev, false);
            }
        } else if (mHistory.size() > 1) {
            if (DEBUG_TRANSITION) Slog.v(TAG,
                    "Prepare open transition: no previous");
            if (mNoAnimActivities.contains(next)) {
                mWindowManager.prepareAppTransition(WindowManagerPolicy.TRANSIT_NONE);
            } else {
                mWindowManager.prepareAppTransition(WindowManagerPolicy.TRANSIT_ACTIVITY_OPEN);
            }
        }

        if (next.app != null && next.app.thread != null) {
            if (DEBUG_SWITCH) Slog.v(TAG, "Resume running: " + next);

            // This activity is now becoming visible.
            mWindowManager.setAppVisibility(next, true);

            HistoryRecord lastResumedActivity = mResumedActivity;
            ActivityState lastState = next.state;

            updateCpuStats();
            
            next.state = ActivityState.RESUMED;
            mResumedActivity = next;
            next.task.touchActiveTime();
            updateLruProcessLocked(next.app, true, true);
            updateLRUListLocked(next);

            // Have the window manager re-evaluate the orientation of
            // the screen based on the new activity order.
            boolean updated;
            synchronized (this) {
                Configuration config = mWindowManager.updateOrientationFromAppTokens(
                        mConfiguration,
                        next.mayFreezeScreenLocked(next.app) ? next : null);
                if (config != null) {
                    next.frozenBeforeDestroy = true;
                }
                updated = updateConfigurationLocked(config, next);
            }
            if (!updated) {
                // The configuration update wasn't able to keep the existing
                // instance of the activity, and instead started a new one.
                // We should be all done, but let's just make sure our activity
                // is still at the top and schedule another run if something
                // weird happened.
                HistoryRecord nextNext = topRunningActivityLocked(null);
                if (DEBUG_SWITCH) Slog.i(TAG,
                        "Activity config changed during resume: " + next
                        + ", new next: " + nextNext);
                if (nextNext != next) {
                    // Do over!
                    mHandler.sendEmptyMessage(RESUME_TOP_ACTIVITY_MSG);
                }
                setFocusedActivityLocked(next);
                ensureActivitiesVisibleLocked(null, 0);
                mWindowManager.executeAppTransition();
                mNoAnimActivities.clear();
                return true;
            }
            
            try {
                // Deliver all pending results.
                ArrayList a = next.results;
                if (a != null) {
                    final int N = a.size();
                    if (!next.finishing && N > 0) {
                        if (DEBUG_RESULTS) Slog.v(
                                TAG, "Delivering results to " + next
                                + ": " + a);
                        next.app.thread.scheduleSendResult(next, a);
                    }
                }

                if (next.newIntents != null) {
                    next.app.thread.scheduleNewIntent(next.newIntents, next);
                }

                EventLog.writeEvent(EventLogTags.AM_RESUME_ACTIVITY,
                        System.identityHashCode(next),
                        next.task.taskId, next.shortComponentName);
                
                next.app.thread.scheduleResumeActivity(next,
                        isNextTransitionForward());
                
                pauseIfSleepingLocked();

            } catch (Exception e) {
                // Whoops, need to restart this activity!
                next.state = lastState;
                mResumedActivity = lastResumedActivity;
                Slog.i(TAG, "Restarting because process died: " + next);
                if (!next.hasBeenLaunched) {
                    next.hasBeenLaunched = true;
                } else {
                    if (SHOW_APP_STARTING_ICON) {
                        mWindowManager.setAppStartingWindow(
                                next, next.packageName, next.theme,
                                next.nonLocalizedLabel,
                                next.labelRes, next.icon, null, true);
                    }
                }
                startSpecificActivityLocked(next, true, false);
                return true;
            }

            // From this point on, if something goes wrong there is no way
            // to recover the activity.
            try {
                next.visible = true;
                completeResumeLocked(next);
            } catch (Exception e) {
                // If any exception gets thrown, toss away this
                // activity and try the next one.
                Slog.w(TAG, "Exception thrown during resume of " + next, e);
                requestFinishActivityLocked(next, Activity.RESULT_CANCELED, null,
                        "resume-exception");
                return true;
            }

            // Didn't need to use the icicle, and it is now out of date.
            next.icicle = null;
            next.haveState = false;
            next.stopped = false;

        } else {
            // Whoops, need to restart this activity!
            if (!next.hasBeenLaunched) {
                next.hasBeenLaunched = true;
            } else {
                if (SHOW_APP_STARTING_ICON) {
                    mWindowManager.setAppStartingWindow(
                            next, next.packageName, next.theme,
                            next.nonLocalizedLabel,
                            next.labelRes, next.icon, null, true);
                }
                if (DEBUG_SWITCH) Slog.v(TAG, "Restarting: " + next);
            }
            startSpecificActivityLocked(next, true, true);
        }

        return true;
    }

    private final void startActivityLocked(HistoryRecord r, boolean newTask,
            boolean doResume) {
        final int NH = mHistory.size();

        int addPos = -1;
        
        if (!newTask) {
            // If starting in an existing task, find where that is...
            HistoryRecord next = null;
            boolean startIt = true;
            for (int i = NH-1; i >= 0; i--) {
                HistoryRecord p = (HistoryRecord)mHistory.get(i);
                if (p.finishing) {
                    continue;
                }
                if (p.task == r.task) {
                    // Here it is!  Now, if this is not yet visible to the
                    // user, then just add it without starting; it will
                    // get started when the user navigates back to it.
                    addPos = i+1;
                    if (!startIt) {
                        mHistory.add(addPos, r);
                        r.inHistory = true;
                        r.task.numActivities++;
                        mWindowManager.addAppToken(addPos, r, r.task.taskId,
                                r.info.screenOrientation, r.fullscreen);
                        if (VALIDATE_TOKENS) {
                            mWindowManager.validateAppTokens(mHistory);
                        }
                        return;
                    }
                    break;
                }
                if (p.fullscreen) {
                    startIt = false;
                }
                next = p;
            }
        }

        // Place a new activity at top of stack, so it is next to interact
        // with the user.
        if (addPos < 0) {
            addPos = mHistory.size();
        }
        
        // If we are not placing the new activity frontmost, we do not want
        // to deliver the onUserLeaving callback to the actual frontmost
        // activity
        if (addPos < NH) {
            mUserLeaving = false;
            if (DEBUG_USER_LEAVING) Slog.v(TAG, "startActivity() behind front, mUserLeaving=false");
        }
        
        // Slot the activity into the history stack and proceed
        mHistory.add(addPos, r);
        r.inHistory = true;
        r.frontOfTask = newTask;
        r.task.numActivities++;
        if (NH > 0) {
            // We want to show the starting preview window if we are
            // switching to a new task, or the next activity's process is
            // not currently running.
            boolean showStartingIcon = newTask;
            ProcessRecord proc = r.app;
            if (proc == null) {
                proc = mProcessNames.get(r.processName, r.info.applicationInfo.uid);
            }
            if (proc == null || proc.thread == null) {
                showStartingIcon = true;
            }
            if (DEBUG_TRANSITION) Slog.v(TAG,
                    "Prepare open transition: starting " + r);
            if ((r.intent.getFlags()&Intent.FLAG_ACTIVITY_NO_ANIMATION) != 0) {
                mWindowManager.prepareAppTransition(WindowManagerPolicy.TRANSIT_NONE);
                mNoAnimActivities.add(r);
            } else if ((r.intent.getFlags()&Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET) != 0) {
                mWindowManager.prepareAppTransition(WindowManagerPolicy.TRANSIT_TASK_OPEN);
                mNoAnimActivities.remove(r);
            } else {
                mWindowManager.prepareAppTransition(newTask
                        ? WindowManagerPolicy.TRANSIT_TASK_OPEN
                        : WindowManagerPolicy.TRANSIT_ACTIVITY_OPEN);
                mNoAnimActivities.remove(r);
            }
            mWindowManager.addAppToken(
                    addPos, r, r.task.taskId, r.info.screenOrientation, r.fullscreen);
            boolean doShow = true;
            if (newTask) {
                // Even though this activity is starting fresh, we still need
                // to reset it to make sure we apply affinities to move any
                // existing activities from other tasks in to it.
                // If the caller has requested that the target task be
                // reset, then do so.
                if ((r.intent.getFlags()
                        &Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED) != 0) {
                    resetTaskIfNeededLocked(r, r);
                    doShow = topRunningNonDelayedActivityLocked(null) == r;
                }
            }
            if (SHOW_APP_STARTING_ICON && doShow) {
                // Figure out if we are transitioning from another activity that is
                // "has the same starting icon" as the next one.  This allows the
                // window manager to keep the previous window it had previously
                // created, if it still had one.
                HistoryRecord prev = mResumedActivity;
                if (prev != null) {
                    // We don't want to reuse the previous starting preview if:
                    // (1) The current activity is in a different task.
                    if (prev.task != r.task) prev = null;
                    // (2) The current activity is already displayed.
                    else if (prev.nowVisible) prev = null;
                }
                mWindowManager.setAppStartingWindow(
                        r, r.packageName, r.theme, r.nonLocalizedLabel,
                        r.labelRes, r.icon, prev, showStartingIcon);
            }
        } else {
            // If this is the first activity, don't do any fancy animations,
            // because there is nothing for it to animate on top of.
            mWindowManager.addAppToken(addPos, r, r.task.taskId,
                    r.info.screenOrientation, r.fullscreen);
        }
        if (VALIDATE_TOKENS) {
            mWindowManager.validateAppTokens(mHistory);
        }

        if (doResume) {
            resumeTopActivityLocked(null);
        }
    }

    /**
     * Perform clear operation as requested by
     * {@link Intent#FLAG_ACTIVITY_CLEAR_TOP}: search from the top of the
     * stack to the given task, then look for
     * an instance of that activity in the stack and, if found, finish all
     * activities on top of it and return the instance.
     *
     * @param newR Description of the new activity being started.
     * @return Returns the old activity that should be continue to be used,
     * or null if none was found.
     */
    private final HistoryRecord performClearTaskLocked(int taskId,
            HistoryRecord newR, int launchFlags, boolean doClear) {
        int i = mHistory.size();
        
        // First find the requested task.
        while (i > 0) {
            i--;
            HistoryRecord r = (HistoryRecord)mHistory.get(i);
            if (r.task.taskId == taskId) {
                i++;
                break;
            }
        }
        
        // Now clear it.
        while (i > 0) {
            i--;
            HistoryRecord r = (HistoryRecord)mHistory.get(i);
            if (r.finishing) {
                continue;
            }
            if (r.task.taskId != taskId) {
                return null;
            }
            if (r.realActivity.equals(newR.realActivity)) {
                // Here it is!  Now finish everything in front...
                HistoryRecord ret = r;
                if (doClear) {
                    while (i < (mHistory.size()-1)) {
                        i++;
                        r = (HistoryRecord)mHistory.get(i);
                        if (r.finishing) {
                            continue;
                        }
                        if (finishActivityLocked(r, i, Activity.RESULT_CANCELED,
                                null, "clear")) {
                            i--;
                        }
                    }
                }
                
                // Finally, if this is a normal launch mode (that is, not
                // expecting onNewIntent()), then we will finish the current
                // instance of the activity so a new fresh one can be started.
                if (ret.launchMode == ActivityInfo.LAUNCH_MULTIPLE
                        && (launchFlags&Intent.FLAG_ACTIVITY_SINGLE_TOP) == 0) {
                    if (!ret.finishing) {
                        int index = indexOfTokenLocked(ret);
                        if (index >= 0) {
                            finishActivityLocked(ret, index, Activity.RESULT_CANCELED,
                                    null, "clear");
                        }
                        return null;
                    }
                }
                
                return ret;
            }
        }

        return null;
    }

    /**
     * Find the activity in the history stack within the given task.  Returns
     * the index within the history at which it's found, or < 0 if not found.
     */
    private final int findActivityInHistoryLocked(HistoryRecord r, int task) {
        int i = mHistory.size();
        while (i > 0) {
            i--;
            HistoryRecord candidate = (HistoryRecord)mHistory.get(i);
            if (candidate.task.taskId != task) {
                break;
            }
            if (candidate.realActivity.equals(r.realActivity)) {
                return i;
            }
        }

        return -1;
    }

    /**
     * Reorder the history stack so that the activity at the given index is
     * brought to the front.
     */
    private final HistoryRecord moveActivityToFrontLocked(int where) {
        HistoryRecord newTop = (HistoryRecord)mHistory.remove(where);
        int top = mHistory.size();
        HistoryRecord oldTop = (HistoryRecord)mHistory.get(top-1);
        mHistory.add(top, newTop);
        oldTop.frontOfTask = false;
        newTop.frontOfTask = true;
        return newTop;
    }

    /**
     * Deliver a new Intent to an existing activity, so that its onNewIntent()
     * method will be called at the proper time.
     */
    private final void deliverNewIntentLocked(HistoryRecord r, Intent intent) {
        boolean sent = false;
        if (r.state == ActivityState.RESUMED
                && r.app != null && r.app.thread != null) {
            try {
                ArrayList<Intent> ar = new ArrayList();
                ar.add(new Intent(intent));
                r.app.thread.scheduleNewIntent(ar, r);
                sent = true;
            } catch (Exception e) {
                Slog.w(TAG, "Exception thrown sending new intent to " + r, e);
            }
        }
        if (!sent) {
            r.addNewIntentLocked(new Intent(intent));
        }
    }

    private final void logStartActivity(int tag, HistoryRecord r,
            TaskRecord task) {
        EventLog.writeEvent(tag,
                System.identityHashCode(r), task.taskId,
                r.shortComponentName, r.intent.getAction(),
                r.intent.getType(), r.intent.getDataString(),
                r.intent.getFlags());
    }

    private final int startActivityLocked(IApplicationThread caller,
            Intent intent, String resolvedType,
            Uri[] grantedUriPermissions,
            int grantedMode, ActivityInfo aInfo, IBinder resultTo,
            String resultWho, int requestCode,
            int callingPid, int callingUid, boolean onlyIfNeeded,
            boolean componentSpecified) {
        Slog.i(TAG, "Starting activity: " + intent);

        HistoryRecord sourceRecord = null;
        HistoryRecord resultRecord = null;
        if (resultTo != null) {
            int index = indexOfTokenLocked(resultTo);
            if (DEBUG_RESULTS) Slog.v(
                TAG, "Sending result to " + resultTo + " (index " + index + ")");
            if (index >= 0) {
                sourceRecord = (HistoryRecord)mHistory.get(index);
                if (requestCode >= 0 && !sourceRecord.finishing) {
                    resultRecord = sourceRecord;
                }
            }
        }

        int launchFlags = intent.getFlags();

        if ((launchFlags&Intent.FLAG_ACTIVITY_FORWARD_RESULT) != 0
                && sourceRecord != null) {
            // Transfer the result target from the source activity to the new
            // one being started, including any failures.
            if (requestCode >= 0) {
                return START_FORWARD_AND_REQUEST_CONFLICT;
            }
            resultRecord = sourceRecord.resultTo;
            resultWho = sourceRecord.resultWho;
            requestCode = sourceRecord.requestCode;
            sourceRecord.resultTo = null;
            if (resultRecord != null) {
                resultRecord.removeResultsLocked(
                    sourceRecord, resultWho, requestCode);
            }
        }

        int err = START_SUCCESS;

        if (intent.getComponent() == null) {
            // We couldn't find a class that can handle the given Intent.
            // That's the end of that!
            err = START_INTENT_NOT_RESOLVED;
        }

        if (err == START_SUCCESS && aInfo == null) {
            // We couldn't find the specific class specified in the Intent.
            // Also the end of the line.
            err = START_CLASS_NOT_FOUND;
        }

        ProcessRecord callerApp = null;
        if (err == START_SUCCESS && caller != null) {
            callerApp = getRecordForAppLocked(caller);
            if (callerApp != null) {
                callingPid = callerApp.pid;
                callingUid = callerApp.info.uid;
            } else {
                Slog.w(TAG, "Unable to find app for caller " + caller
                      + " (pid=" + callingPid + ") when starting: "
                      + intent.toString());
                err = START_PERMISSION_DENIED;
            }
        }

        if (err != START_SUCCESS) {
            if (resultRecord != null) {
                sendActivityResultLocked(-1,
                    resultRecord, resultWho, requestCode,
                    Activity.RESULT_CANCELED, null);
            }
            return err;
        }

        final int perm = checkComponentPermission(aInfo.permission, callingPid,
                callingUid, aInfo.exported ? -1 : aInfo.applicationInfo.uid);
        if (perm != PackageManager.PERMISSION_GRANTED) {
            if (resultRecord != null) {
                sendActivityResultLocked(-1,
                    resultRecord, resultWho, requestCode,
                    Activity.RESULT_CANCELED, null);
            }
            String msg = "Permission Denial: starting " + intent.toString()
                    + " from " + callerApp + " (pid=" + callingPid
                    + ", uid=" + callingUid + ")"
                    + " requires " + aInfo.permission;
            Slog.w(TAG, msg);
            throw new SecurityException(msg);
        }

        if (mController != null) {
            boolean abort = false;
            try {
                // The Intent we give to the watcher has the extra data
                // stripped off, since it can contain private information.
                Intent watchIntent = intent.cloneFilter();
                abort = !mController.activityStarting(watchIntent,
                        aInfo.applicationInfo.packageName);
            } catch (RemoteException e) {
                mController = null;
            }

            if (abort) {
                if (resultRecord != null) {
                    sendActivityResultLocked(-1,
                        resultRecord, resultWho, requestCode,
                        Activity.RESULT_CANCELED, null);
                }
                // We pretend to the caller that it was really started, but
                // they will just get a cancel result.
                return START_SUCCESS;
            }
        }

        HistoryRecord r = new HistoryRecord(this, callerApp, callingUid,
                intent, resolvedType, aInfo, mConfiguration,
                resultRecord, resultWho, requestCode, componentSpecified);

        if (mResumedActivity == null
                || mResumedActivity.info.applicationInfo.uid != callingUid) {
            if (!checkAppSwitchAllowedLocked(callingPid, callingUid, "Activity start")) {
                PendingActivityLaunch pal = new PendingActivityLaunch();
                pal.r = r;
                pal.sourceRecord = sourceRecord;
                pal.grantedUriPermissions = grantedUriPermissions;
                pal.grantedMode = grantedMode;
                pal.onlyIfNeeded = onlyIfNeeded;
                mPendingActivityLaunches.add(pal);
                return START_SWITCHES_CANCELED;
            }
        }
        
        if (mDidAppSwitch) {
            // This is the second allowed switch since we stopped switches,
            // so now just generally allow switches.  Use case: user presses
            // home (switches disabled, switch to home, mDidAppSwitch now true);
            // user taps a home icon (coming from home so allowed, we hit here
            // and now allow anyone to switch again).
            mAppSwitchesAllowedTime = 0;
        } else {
            mDidAppSwitch = true;
        }
     
        doPendingActivityLaunchesLocked(false);
        
        return startActivityUncheckedLocked(r, sourceRecord,
                grantedUriPermissions, grantedMode, onlyIfNeeded, true);
    }
  
    private final void doPendingActivityLaunchesLocked(boolean doResume) {
        final int N = mPendingActivityLaunches.size();
        if (N <= 0) {
            return;
        }
        for (int i=0; i<N; i++) {
            PendingActivityLaunch pal = mPendingActivityLaunches.get(i);
            startActivityUncheckedLocked(pal.r, pal.sourceRecord,
                    pal.grantedUriPermissions, pal.grantedMode, pal.onlyIfNeeded,
                    doResume && i == (N-1));
        }
        mPendingActivityLaunches.clear();
    }
    
    private final int startActivityUncheckedLocked(HistoryRecord r,
            HistoryRecord sourceRecord, Uri[] grantedUriPermissions,
            int grantedMode, boolean onlyIfNeeded, boolean doResume) {
        final Intent intent = r.intent;
        final int callingUid = r.launchedFromUid;
        
        int launchFlags = intent.getFlags();
        
        // We'll invoke onUserLeaving before onPause only if the launching
        // activity did not explicitly state that this is an automated launch.
        mUserLeaving = (launchFlags&Intent.FLAG_ACTIVITY_NO_USER_ACTION) == 0;
        if (DEBUG_USER_LEAVING) Slog.v(TAG,
                "startActivity() => mUserLeaving=" + mUserLeaving);
        
        // If the caller has asked not to resume at this point, we make note
        // of this in the record so that we can skip it when trying to find
        // the top running activity.
        if (!doResume) {
            r.delayedResume = true;
        }
        
        HistoryRecord notTop = (launchFlags&Intent.FLAG_ACTIVITY_PREVIOUS_IS_TOP)
                != 0 ? r : null;

        // If the onlyIfNeeded flag is set, then we can do this if the activity
        // being launched is the same as the one making the call...  or, as
        // a special case, if we do not know the caller then we count the
        // current top activity as the caller.
        if (onlyIfNeeded) {
            HistoryRecord checkedCaller = sourceRecord;
            if (checkedCaller == null) {
                checkedCaller = topRunningNonDelayedActivityLocked(notTop);
            }
            if (!checkedCaller.realActivity.equals(r.realActivity)) {
                // Caller is not the same as launcher, so always needed.
                onlyIfNeeded = false;
            }
        }

        if (grantedUriPermissions != null && callingUid > 0) {
            for (int i=0; i<grantedUriPermissions.length; i++) {
                grantUriPermissionLocked(callingUid, r.packageName,
                        grantedUriPermissions[i], grantedMode, r);
            }
        }

        grantUriPermissionFromIntentLocked(callingUid, r.packageName,
                intent, r);

        if (sourceRecord == null) {
            // This activity is not being started from another...  in this
            // case we -always- start a new task.
            if ((launchFlags&Intent.FLAG_ACTIVITY_NEW_TASK) == 0) {
                Slog.w(TAG, "startActivity called from non-Activity context; forcing Intent.FLAG_ACTIVITY_NEW_TASK for: "
                      + intent);
                launchFlags |= Intent.FLAG_ACTIVITY_NEW_TASK;
            }
        } else if (sourceRecord.launchMode == ActivityInfo.LAUNCH_SINGLE_INSTANCE) {
            // The original activity who is starting us is running as a single
            // instance...  this new activity it is starting must go on its
            // own task.
            launchFlags |= Intent.FLAG_ACTIVITY_NEW_TASK;
        } else if (r.launchMode == ActivityInfo.LAUNCH_SINGLE_INSTANCE
                || r.launchMode == ActivityInfo.LAUNCH_SINGLE_TASK) {
            // The activity being started is a single instance...  it always
            // gets launched into its own task.
            launchFlags |= Intent.FLAG_ACTIVITY_NEW_TASK;
        }

        if (r.resultTo != null && (launchFlags&Intent.FLAG_ACTIVITY_NEW_TASK) != 0) {
            // For whatever reason this activity is being launched into a new
            // task...  yet the caller has requested a result back.  Well, that
            // is pretty messed up, so instead immediately send back a cancel
            // and let the new task continue launched as normal without a
            // dependency on its originator.
            Slog.w(TAG, "Activity is launching as a new task, so cancelling activity result.");
            sendActivityResultLocked(-1,
                    r.resultTo, r.resultWho, r.requestCode,
                Activity.RESULT_CANCELED, null);
            r.resultTo = null;
        }

        boolean addingToTask = false;
        if (((launchFlags&Intent.FLAG_ACTIVITY_NEW_TASK) != 0 &&
                (launchFlags&Intent.FLAG_ACTIVITY_MULTIPLE_TASK) == 0)
                || r.launchMode == ActivityInfo.LAUNCH_SINGLE_TASK
                || r.launchMode == ActivityInfo.LAUNCH_SINGLE_INSTANCE) {
            // If bring to front is requested, and no result is requested, and
            // we can find a task that was started with this same
            // component, then instead of launching bring that one to the front.
            if (r.resultTo == null) {
                // See if there is a task to bring to the front.  If this is
                // a SINGLE_INSTANCE activity, there can be one and only one
                // instance of it in the history, and it is always in its own
                // unique task, so we do a special search.
                HistoryRecord taskTop = r.launchMode != ActivityInfo.LAUNCH_SINGLE_INSTANCE
                        ? findTaskLocked(intent, r.info)
                        : findActivityLocked(intent, r.info);
                if (taskTop != null) {
                    if (taskTop.task.intent == null) {
                        // This task was started because of movement of
                        // the activity based on affinity...  now that we
                        // are actually launching it, we can assign the
                        // base intent.
                        taskTop.task.setIntent(intent, r.info);
                    }
                    // If the target task is not in the front, then we need
                    // to bring it to the front...  except...  well, with
                    // SINGLE_TASK_LAUNCH it's not entirely clear.  We'd like
                    // to have the same behavior as if a new instance was
                    // being started, which means not bringing it to the front
                    // if the caller is not itself in the front.
                    HistoryRecord curTop = topRunningNonDelayedActivityLocked(notTop);
                    if (curTop.task != taskTop.task) {
                        r.intent.addFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT);
                        boolean callerAtFront = sourceRecord == null
                                || curTop.task == sourceRecord.task;
                        if (callerAtFront) {
                            // We really do want to push this one into the
                            // user's face, right now.
                            moveTaskToFrontLocked(taskTop.task, r);
                        }
                    }
                    // If the caller has requested that the target task be
                    // reset, then do so.
                    if ((launchFlags&Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED) != 0) {
                        taskTop = resetTaskIfNeededLocked(taskTop, r);
                    }
                    if (onlyIfNeeded) {
                        // We don't need to start a new activity, and
                        // the client said not to do anything if that
                        // is the case, so this is it!  And for paranoia, make
                        // sure we have correctly resumed the top activity.
                        if (doResume) {
                            resumeTopActivityLocked(null);
                        }
                        return START_RETURN_INTENT_TO_CALLER;
                    }
                    if ((launchFlags&Intent.FLAG_ACTIVITY_CLEAR_TOP) != 0
                            || r.launchMode == ActivityInfo.LAUNCH_SINGLE_TASK
                            || r.launchMode == ActivityInfo.LAUNCH_SINGLE_INSTANCE) {
                        // In this situation we want to remove all activities
                        // from the task up to the one being started.  In most
                        // cases this means we are resetting the task to its
                        // initial state.
                        HistoryRecord top = performClearTaskLocked(
                                taskTop.task.taskId, r, launchFlags, true);
                        if (top != null) {
                            if (top.frontOfTask) {
                                // Activity aliases may mean we use different
                                // intents for the top activity, so make sure
                                // the task now has the identity of the new
                                // intent.
                                top.task.setIntent(r.intent, r.info);
                            }
                            logStartActivity(EventLogTags.AM_NEW_INTENT, r, top.task);
                            deliverNewIntentLocked(top, r.intent);
                        } else {
                            // A special case: we need to
                            // start the activity because it is not currently
                            // running, and the caller has asked to clear the
                            // current task to have this activity at the top.
                            addingToTask = true;
                            // Now pretend like this activity is being started
                            // by the top of its task, so it is put in the
                            // right place.
                            sourceRecord = taskTop;
                        }
                    } else if (r.realActivity.equals(taskTop.task.realActivity)) {
                        // In this case the top activity on the task is the
                        // same as the one being launched, so we take that
                        // as a request to bring the task to the foreground.
                        // If the top activity in the task is the root
                        // activity, deliver this new intent to it if it
                        // desires.
                        if ((launchFlags&Intent.FLAG_ACTIVITY_SINGLE_TOP) != 0
                                && taskTop.realActivity.equals(r.realActivity)) {
                            logStartActivity(EventLogTags.AM_NEW_INTENT, r, taskTop.task);
                            if (taskTop.frontOfTask) {
                                taskTop.task.setIntent(r.intent, r.info);
                            }
                            deliverNewIntentLocked(taskTop, r.intent);
                        } else if (!r.intent.filterEquals(taskTop.task.intent)) {
                            // In this case we are launching the root activity
                            // of the task, but with a different intent.  We
                            // should start a new instance on top.
                            addingToTask = true;
                            sourceRecord = taskTop;
                        }
                    } else if ((launchFlags&Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED) == 0) {
                        // In this case an activity is being launched in to an
                        // existing task, without resetting that task.  This
                        // is typically the situation of launching an activity
                        // from a notification or shortcut.  We want to place
                        // the new activity on top of the current task.
                        addingToTask = true;
                        sourceRecord = taskTop;
                    } else if (!taskTop.task.rootWasReset) {
                        // In this case we are launching in to an existing task
                        // that has not yet been started from its front door.
                        // The current task has been brought to the front.
                        // Ideally, we'd probably like to place this new task
                        // at the bottom of its stack, but that's a little hard
                        // to do with the current organization of the code so
                        // for now we'll just drop it.
                        taskTop.task.setIntent(r.intent, r.info);
                    }
                    if (!addingToTask) {
                        // We didn't do anything...  but it was needed (a.k.a., client
                        // don't use that intent!)  And for paranoia, make
                        // sure we have correctly resumed the top activity.
                        if (doResume) {
                            resumeTopActivityLocked(null);
                        }
                        return START_TASK_TO_FRONT;
                    }
                }
            }
        }

        //String uri = r.intent.toURI();
        //Intent intent2 = new Intent(uri);
        //Slog.i(TAG, "Given intent: " + r.intent);
        //Slog.i(TAG, "URI is: " + uri);
        //Slog.i(TAG, "To intent: " + intent2);

        if (r.packageName != null) {
            // If the activity being launched is the same as the one currently
            // at the top, then we need to check if it should only be launched
            // once.
            HistoryRecord top = topRunningNonDelayedActivityLocked(notTop);
            if (top != null && r.resultTo == null) {
                if (top.realActivity.equals(r.realActivity)) {
                    if (top.app != null && top.app.thread != null) {
                        if ((launchFlags&Intent.FLAG_ACTIVITY_SINGLE_TOP) != 0
                            || r.launchMode == ActivityInfo.LAUNCH_SINGLE_TOP
                            || r.launchMode == ActivityInfo.LAUNCH_SINGLE_TASK) {
                            logStartActivity(EventLogTags.AM_NEW_INTENT, top, top.task);
                            // For paranoia, make sure we have correctly
                            // resumed the top activity.
                            if (doResume) {
                                resumeTopActivityLocked(null);
                            }
                            if (onlyIfNeeded) {
                                // We don't need to start a new activity, and
                                // the client said not to do anything if that
                                // is the case, so this is it!
                                return START_RETURN_INTENT_TO_CALLER;
                            }
                            deliverNewIntentLocked(top, r.intent);
                            return START_DELIVERED_TO_TOP;
                        }
                    }
                }
            }

        } else {
            if (r.resultTo != null) {
                sendActivityResultLocked(-1,
                        r.resultTo, r.resultWho, r.requestCode,
                    Activity.RESULT_CANCELED, null);
            }
            return START_CLASS_NOT_FOUND;
        }

        boolean newTask = false;

        // Should this be considered a new task?
        if (r.resultTo == null && !addingToTask
                && (launchFlags&Intent.FLAG_ACTIVITY_NEW_TASK) != 0) {
            // todo: should do better management of integers.
            mCurTask++;
            if (mCurTask <= 0) {
                mCurTask = 1;
            }
            r.task = new TaskRecord(mCurTask, r.info, intent,
                    (r.info.flags&ActivityInfo.FLAG_CLEAR_TASK_ON_LAUNCH) != 0);
            if (DEBUG_TASKS) Slog.v(TAG, "Starting new activity " + r
                    + " in new task " + r.task);
            newTask = true;
            addRecentTaskLocked(r.task);
            
        } else if (sourceRecord != null) {
            if (!addingToTask &&
                    (launchFlags&Intent.FLAG_ACTIVITY_CLEAR_TOP) != 0) {
                // In this case, we are adding the activity to an existing
                // task, but the caller has asked to clear that task if the
                // activity is already running.
                HistoryRecord top = performClearTaskLocked(
                        sourceRecord.task.taskId, r, launchFlags, true);
                if (top != null) {
                    logStartActivity(EventLogTags.AM_NEW_INTENT, r, top.task);
                    deliverNewIntentLocked(top, r.intent);
                    // For paranoia, make sure we have correctly
                    // resumed the top activity.
                    if (doResume) {
                        resumeTopActivityLocked(null);
                    }
                    return START_DELIVERED_TO_TOP;
                }
            } else if (!addingToTask &&
                    (launchFlags&Intent.FLAG_ACTIVITY_REORDER_TO_FRONT) != 0) {
                // In this case, we are launching an activity in our own task
                // that may already be running somewhere in the history, and
                // we want to shuffle it to the front of the stack if so.
                int where = findActivityInHistoryLocked(r, sourceRecord.task.taskId);
                if (where >= 0) {
                    HistoryRecord top = moveActivityToFrontLocked(where);
                    logStartActivity(EventLogTags.AM_NEW_INTENT, r, top.task);
                    deliverNewIntentLocked(top, r.intent);
                    if (doResume) {
                        resumeTopActivityLocked(null);
                    }
                    return START_DELIVERED_TO_TOP;
                }
            }
            // An existing activity is starting this new activity, so we want
            // to keep the new one in the same task as the one that is starting
            // it.
            r.task = sourceRecord.task;
            if (DEBUG_TASKS) Slog.v(TAG, "Starting new activity " + r
                    + " in existing task " + r.task);

        } else {
            // This not being started from an existing activity, and not part
            // of a new task...  just put it in the top task, though these days
            // this case should never happen.
            final int N = mHistory.size();
            HistoryRecord prev =
                N > 0 ? (HistoryRecord)mHistory.get(N-1) : null;
            r.task = prev != null
                ? prev.task
                : new TaskRecord(mCurTask, r.info, intent,
                        (r.info.flags&ActivityInfo.FLAG_CLEAR_TASK_ON_LAUNCH) != 0);
            if (DEBUG_TASKS) Slog.v(TAG, "Starting new activity " + r
                    + " in new guessed " + r.task);
        }
        if (newTask) {
            EventLog.writeEvent(EventLogTags.AM_CREATE_TASK, r.task.taskId);
        }
        logStartActivity(EventLogTags.AM_CREATE_ACTIVITY, r, r.task);
        startActivityLocked(r, newTask, doResume);
        return START_SUCCESS;
    }

    void reportActivityLaunchedLocked(boolean timeout, HistoryRecord r,
            long thisTime, long totalTime) {
        for (int i=mWaitingActivityLaunched.size()-1; i>=0; i--) {
            WaitResult w = mWaitingActivityLaunched.get(i);
            w.timeout = timeout;
            if (r != null) {
                w.who = new ComponentName(r.info.packageName, r.info.name);
            }
            w.thisTime = thisTime;
            w.totalTime = totalTime;
        }
        notify();
    }
    
    void reportActivityVisibleLocked(HistoryRecord r) {
        for (int i=mWaitingActivityVisible.size()-1; i>=0; i--) {
            WaitResult w = mWaitingActivityVisible.get(i);
            w.timeout = false;
            if (r != null) {
                w.who = new ComponentName(r.info.packageName, r.info.name);
            }
            w.totalTime = SystemClock.uptimeMillis() - w.thisTime;
            w.thisTime = w.totalTime;
        }
        notify();
    }
    
    private final int startActivityMayWait(IApplicationThread caller,
            Intent intent, String resolvedType, Uri[] grantedUriPermissions,
            int grantedMode, IBinder resultTo,
            String resultWho, int requestCode, boolean onlyIfNeeded,
            boolean debug, WaitResult outResult, Configuration config) {
        // Refuse possible leaked file descriptors
        if (intent != null && intent.hasFileDescriptors()) {
            throw new IllegalArgumentException("File descriptors passed in Intent");
        }

        final boolean componentSpecified = intent.getComponent() != null;
        
        // Don't modify the client's object!
        intent = new Intent(intent);

        // Collect information about the target of the Intent.
        ActivityInfo aInfo;
        try {
            ResolveInfo rInfo =
                ActivityThread.getPackageManager().resolveIntent(
                        intent, resolvedType,
                        PackageManager.MATCH_DEFAULT_ONLY
                        | STOCK_PM_FLAGS);
            aInfo = rInfo != null ? rInfo.activityInfo : null;
        } catch (RemoteException e) {
            aInfo = null;
        }

        if (aInfo != null) {
            // Store the found target back into the intent, because now that
            // we have it we never want to do this again.  For example, if the
            // user navigates back to this point in the history, we should
            // always restart the exact same activity.
            intent.setComponent(new ComponentName(
                    aInfo.applicationInfo.packageName, aInfo.name));

            // Don't debug things in the system process
            if (debug) {
                if (!aInfo.processName.equals("system")) {
                    setDebugApp(aInfo.processName, true, false);
                }
            }
        }

        synchronized (this) {
            int callingPid;
            int callingUid;
            if (caller == null) {
                callingPid = Binder.getCallingPid();
                callingUid = Binder.getCallingUid();
            } else {
                callingPid = callingUid = -1;
            }
            
            mConfigWillChange = config != null && mConfiguration.diff(config) != 0;
            if (DEBUG_CONFIGURATION) Slog.v(TAG,
                    "Starting activity when config will change = " + mConfigWillChange);
            
            final long origId = Binder.clearCallingIdentity();
            
            int res = startActivityLocked(caller, intent, resolvedType,
                    grantedUriPermissions, grantedMode, aInfo,
                    resultTo, resultWho, requestCode, callingPid, callingUid,
                    onlyIfNeeded, componentSpecified);
            
            if (mConfigWillChange) {
                // If the caller also wants to switch to a new configuration,
                // do so now.  This allows a clean switch, as we are waiting
                // for the current activity to pause (so we will not destroy
                // it), and have not yet started the next activity.
                enforceCallingPermission(android.Manifest.permission.CHANGE_CONFIGURATION,
                        "updateConfiguration()");
                mConfigWillChange = false;
                if (DEBUG_CONFIGURATION) Slog.v(TAG,
                        "Updating to new configuration after starting activity.");
                updateConfigurationLocked(config, null);
            }
            
            Binder.restoreCallingIdentity(origId);
            
            if (outResult != null) {
                outResult.result = res;
                if (res == IActivityManager.START_SUCCESS) {
                    mWaitingActivityLaunched.add(outResult);
                    do {
                        try {
                            wait();
                        } catch (InterruptedException e) {
                        }
                    } while (!outResult.timeout && outResult.who == null);
                } else if (res == IActivityManager.START_TASK_TO_FRONT) {
                    HistoryRecord r = this.topRunningActivityLocked(null);
                    if (r.nowVisible) {
                        outResult.timeout = false;
                        outResult.who = new ComponentName(r.info.packageName, r.info.name);
                        outResult.totalTime = 0;
                        outResult.thisTime = 0;
                    } else {
                        outResult.thisTime = SystemClock.uptimeMillis();
                        mWaitingActivityVisible.add(outResult);
                        do {
                            try {
                                wait();
                            } catch (InterruptedException e) {
                            }
                        } while (!outResult.timeout && outResult.who == null);
                    }
                }
            }
            
            return res;
        }
    }

    public final int startActivity(IApplicationThread caller,
            Intent intent, String resolvedType, Uri[] grantedUriPermissions,
            int grantedMode, IBinder resultTo,
            String resultWho, int requestCode, boolean onlyIfNeeded,
            boolean debug) {
        return startActivityMayWait(caller, intent, resolvedType,
                grantedUriPermissions, grantedMode, resultTo, resultWho,
                requestCode, onlyIfNeeded, debug, null, null);
    }

    public final WaitResult startActivityAndWait(IApplicationThread caller,
            Intent intent, String resolvedType, Uri[] grantedUriPermissions,
            int grantedMode, IBinder resultTo,
            String resultWho, int requestCode, boolean onlyIfNeeded,
            boolean debug) {
        WaitResult res = new WaitResult();
        startActivityMayWait(caller, intent, resolvedType,
                grantedUriPermissions, grantedMode, resultTo, resultWho,
                requestCode, onlyIfNeeded, debug, res, null);
        return res;
    }
    
    public final int startActivityWithConfig(IApplicationThread caller,
            Intent intent, String resolvedType, Uri[] grantedUriPermissions,
            int grantedMode, IBinder resultTo,
            String resultWho, int requestCode, boolean onlyIfNeeded,
            boolean debug, Configuration config) {
        return startActivityMayWait(caller, intent, resolvedType,
                grantedUriPermissions, grantedMode, resultTo, resultWho,
                requestCode, onlyIfNeeded, debug, null, config);
    }

     public int startActivityIntentSender(IApplicationThread caller,
            IntentSender intent, Intent fillInIntent, String resolvedType,
            IBinder resultTo, String resultWho, int requestCode,
            int flagsMask, int flagsValues) {
        // Refuse possible leaked file descriptors
        if (fillInIntent != null && fillInIntent.hasFileDescriptors()) {
            throw new IllegalArgumentException("File descriptors passed in Intent");
        }
        
        IIntentSender sender = intent.getTarget();
        if (!(sender instanceof PendingIntentRecord)) {
            throw new IllegalArgumentException("Bad PendingIntent object");
        }
        
        PendingIntentRecord pir = (PendingIntentRecord)sender;
        
        synchronized (this) {
            // If this is coming from the currently resumed activity, it is
            // effectively saying that app switches are allowed at this point.
            if (mResumedActivity != null
                    && mResumedActivity.info.applicationInfo.uid ==
                            Binder.getCallingUid()) {
                mAppSwitchesAllowedTime = 0;
            }
        }
        
        return pir.sendInner(0, fillInIntent, resolvedType,
                null, resultTo, resultWho, requestCode, flagsMask, flagsValues);
    }
    
    public boolean startNextMatchingActivity(IBinder callingActivity,
            Intent intent) {
        // Refuse possible leaked file descriptors
        if (intent != null && intent.hasFileDescriptors() == true) {
            throw new IllegalArgumentException("File descriptors passed in Intent");
        }

        synchronized (this) {
            int index = indexOfTokenLocked(callingActivity);
            if (index < 0) {
                return false;
            }
            HistoryRecord r = (HistoryRecord)mHistory.get(index);
            if (r.app == null || r.app.thread == null) {
                // The caller is not running...  d'oh!
                return false;
            }
            intent = new Intent(intent);
            // The caller is not allowed to change the data.
            intent.setDataAndType(r.intent.getData(), r.intent.getType());
            // And we are resetting to find the next component...
            intent.setComponent(null);

            ActivityInfo aInfo = null;
            try {
                List<ResolveInfo> resolves =
                    ActivityThread.getPackageManager().queryIntentActivities(
                            intent, r.resolvedType,
                            PackageManager.MATCH_DEFAULT_ONLY | STOCK_PM_FLAGS);

                // Look for the original activity in the list...
                final int N = resolves != null ? resolves.size() : 0;
                for (int i=0; i<N; i++) {
                    ResolveInfo rInfo = resolves.get(i);
                    if (rInfo.activityInfo.packageName.equals(r.packageName)
                            && rInfo.activityInfo.name.equals(r.info.name)) {
                        // We found the current one...  the next matching is
                        // after it.
                        i++;
                        if (i<N) {
                            aInfo = resolves.get(i).activityInfo;
                        }
                        break;
                    }
                }
            } catch (RemoteException e) {
            }

            if (aInfo == null) {
                // Nobody who is next!
                return false;
            }

            intent.setComponent(new ComponentName(
                    aInfo.applicationInfo.packageName, aInfo.name));
            intent.setFlags(intent.getFlags()&~(
                    Intent.FLAG_ACTIVITY_FORWARD_RESULT|
                    Intent.FLAG_ACTIVITY_CLEAR_TOP|
                    Intent.FLAG_ACTIVITY_MULTIPLE_TASK|
                    Intent.FLAG_ACTIVITY_NEW_TASK));

            // Okay now we need to start the new activity, replacing the
            // currently running activity.  This is a little tricky because
            // we want to start the new one as if the current one is finished,
            // but not finish the current one first so that there is no flicker.
            // And thus...
            final boolean wasFinishing = r.finishing;
            r.finishing = true;

            // Propagate reply information over to the new activity.
            final HistoryRecord resultTo = r.resultTo;
            final String resultWho = r.resultWho;
            final int requestCode = r.requestCode;
            r.resultTo = null;
            if (resultTo != null) {
                resultTo.removeResultsLocked(r, resultWho, requestCode);
            }

            final long origId = Binder.clearCallingIdentity();
            // XXX we are not dealing with propagating grantedUriPermissions...
            // those are not yet exposed to user code, so there is no need.
            int res = startActivityLocked(r.app.thread, intent,
                    r.resolvedType, null, 0, aInfo, resultTo, resultWho,
                    requestCode, -1, r.launchedFromUid, false, false);
            Binder.restoreCallingIdentity(origId);

            r.finishing = wasFinishing;
            if (res != START_SUCCESS) {
                return false;
            }
            return true;
        }
    }

    public final int startActivityInPackage(int uid,
            Intent intent, String resolvedType, IBinder resultTo,
            String resultWho, int requestCode, boolean onlyIfNeeded) {
        
        // This is so super not safe, that only the system (or okay root)
        // can do it.
        final int callingUid = Binder.getCallingUid();
        if (callingUid != 0 && callingUid != Process.myUid()) {
            throw new SecurityException(
                    "startActivityInPackage only available to the system");
        }
        
        final boolean componentSpecified = intent.getComponent() != null;
        
        // Don't modify the client's object!
        intent = new Intent(intent);

        // Collect information about the target of the Intent.
        ActivityInfo aInfo;
        try {
            ResolveInfo rInfo =
                ActivityThread.getPackageManager().resolveIntent(
                        intent, resolvedType,
                        PackageManager.MATCH_DEFAULT_ONLY | STOCK_PM_FLAGS);
            aInfo = rInfo != null ? rInfo.activityInfo : null;
        } catch (RemoteException e) {
            aInfo = null;
        }

        if (aInfo != null) {
            // Store the found target back into the intent, because now that
            // we have it we never want to do this again.  For example, if the
            // user navigates back to this point in the history, we should
            // always restart the exact same activity.
            intent.setComponent(new ComponentName(
                    aInfo.applicationInfo.packageName, aInfo.name));
        }

        synchronized(this) {
            return startActivityLocked(null, intent, resolvedType,
                    null, 0, aInfo, resultTo, resultWho, requestCode, -1, uid,
                    onlyIfNeeded, componentSpecified);
        }
    }

    private final void addRecentTaskLocked(TaskRecord task) {
        // Remove any existing entries that are the same kind of task.
        int N = mRecentTasks.size();
        for (int i=0; i<N; i++) {
            TaskRecord tr = mRecentTasks.get(i);
            if ((task.affinity != null && task.affinity.equals(tr.affinity))
                    || (task.intent != null && task.intent.filterEquals(tr.intent))) {
                mRecentTasks.remove(i);
                i--;
                N--;
                if (task.intent == null) {
                    // If the new recent task we are adding is not fully
                    // specified, then replace it with the existing recent task.
                    task = tr;
                }
            }
        }
        if (N >= MAX_RECENT_TASKS) {
            mRecentTasks.remove(N-1);
        }
        mRecentTasks.add(0, task);
    }

    public void setRequestedOrientation(IBinder token,
            int requestedOrientation) {
        synchronized (this) {
            int index = indexOfTokenLocked(token);
            if (index < 0) {
                return;
            }
            HistoryRecord r = (HistoryRecord)mHistory.get(index);
            final long origId = Binder.clearCallingIdentity();
            mWindowManager.setAppOrientation(r, requestedOrientation);
            Configuration config = mWindowManager.updateOrientationFromAppTokens(
                    mConfiguration,
                    r.mayFreezeScreenLocked(r.app) ? r : null);
            if (config != null) {
                r.frozenBeforeDestroy = true;
                if (!updateConfigurationLocked(config, r)) {
                    resumeTopActivityLocked(null);
                }
            }
            Binder.restoreCallingIdentity(origId);
        }
    }

    public int getRequestedOrientation(IBinder token) {
        synchronized (this) {
            int index = indexOfTokenLocked(token);
            if (index < 0) {
                return ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED;
            }
            HistoryRecord r = (HistoryRecord)mHistory.get(index);
            return mWindowManager.getAppOrientation(r);
        }
    }

    private final void stopActivityLocked(HistoryRecord r) {
        if (DEBUG_SWITCH) Slog.d(TAG, "Stopping: " + r);
        if ((r.intent.getFlags()&Intent.FLAG_ACTIVITY_NO_HISTORY) != 0
                || (r.info.flags&ActivityInfo.FLAG_NO_HISTORY) != 0) {
            if (!r.finishing) {
                requestFinishActivityLocked(r, Activity.RESULT_CANCELED, null,
                        "no-history");
            }
        } else if (r.app != null && r.app.thread != null) {
            if (mFocusedActivity == r) {
                setFocusedActivityLocked(topRunningActivityLocked(null));
            }
            r.resumeKeyDispatchingLocked();
            try {
                r.stopped = false;
                r.state = ActivityState.STOPPING;
                if (DEBUG_VISBILITY) Slog.v(
                        TAG, "Stopping visible=" + r.visible + " for " + r);
                if (!r.visible) {
                    mWindowManager.setAppVisibility(r, false);
                }
                r.app.thread.scheduleStopActivity(r, r.visible, r.configChangeFlags);
            } catch (Exception e) {
                // Maybe just ignore exceptions here...  if the process
                // has crashed, our death notification will clean things
                // up.
                Slog.w(TAG, "Exception thrown during pause", e);
                // Just in case, assume it to be stopped.
                r.stopped = true;
                r.state = ActivityState.STOPPED;
                if (r.configDestroy) {
                    destroyActivityLocked(r, true);
                }
            }
        }
    }

    /**
     * @return Returns true if the activity is being finished, false if for
     * some reason it is being left as-is.
     */
    private final boolean requestFinishActivityLocked(IBinder token, int resultCode,
            Intent resultData, String reason) {
        if (DEBUG_RESULTS) Slog.v(
            TAG, "Finishing activity: token=" + token
            + ", result=" + resultCode + ", data=" + resultData);

        int index = indexOfTokenLocked(token);
        if (index < 0) {
            return false;
        }
        HistoryRecord r = (HistoryRecord)mHistory.get(index);

        // Is this the last activity left?
        boolean lastActivity = true;
        for (int i=mHistory.size()-1; i>=0; i--) {
            HistoryRecord p = (HistoryRecord)mHistory.get(i);
            if (!p.finishing && p != r) {
                lastActivity = false;
                break;
            }
        }
        
        // If this is the last activity, but it is the home activity, then
        // just don't finish it.
        if (lastActivity) {
            if (r.intent.hasCategory(Intent.CATEGORY_HOME)) {
                return false;
            }
        }
        
        finishActivityLocked(r, index, resultCode, resultData, reason);
        return true;
    }

    /**
     * @return Returns true if this activity has been removed from the history
     * list, or false if it is still in the list and will be removed later.
     */
    private final boolean finishActivityLocked(HistoryRecord r, int index,
            int resultCode, Intent resultData, String reason) {
        if (r.finishing) {
            Slog.w(TAG, "Duplicate finish request for " + r);
            return false;
        }

        r.finishing = true;
        EventLog.writeEvent(EventLogTags.AM_FINISH_ACTIVITY,
                System.identityHashCode(r),
                r.task.taskId, r.shortComponentName, reason);
        r.task.numActivities--;
        if (index < (mHistory.size()-1)) {
            HistoryRecord next = (HistoryRecord)mHistory.get(index+1);
            if (next.task == r.task) {
                if (r.frontOfTask) {
                    // The next activity is now the front of the task.
                    next.frontOfTask = true;
                }
                if ((r.intent.getFlags()&Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET) != 0) {
                    // If the caller asked that this activity (and all above it)
                    // be cleared when the task is reset, don't lose that information,
                    // but propagate it up to the next activity.
                    next.intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
                }
            }
        }

        r.pauseKeyDispatchingLocked();
        if (mFocusedActivity == r) {
            setFocusedActivityLocked(topRunningActivityLocked(null));
        }

        // send the result
        HistoryRecord resultTo = r.resultTo;
        if (resultTo != null) {
            if (DEBUG_RESULTS) Slog.v(TAG, "Adding result to " + resultTo
                    + " who=" + r.resultWho + " req=" + r.requestCode
                    + " res=" + resultCode + " data=" + resultData);
            if (r.info.applicationInfo.uid > 0) {
                grantUriPermissionFromIntentLocked(r.info.applicationInfo.uid,
                        r.packageName, resultData, r);
            }
            resultTo.addResultLocked(r, r.resultWho, r.requestCode, resultCode,
                                     resultData);
            r.resultTo = null;
        }
        else if (DEBUG_RESULTS) Slog.v(TAG, "No result destination from " + r);

        // Make sure this HistoryRecord is not holding on to other resources,
        // because clients have remote IPC references to this object so we
        // can't assume that will go away and want to avoid circular IPC refs.
        r.results = null;
        r.pendingResults = null;
        r.newIntents = null;
        r.icicle = null;
        
        if (mPendingThumbnails.size() > 0) {
            // There are clients waiting to receive thumbnails so, in case
            // this is an activity that someone is waiting for, add it
            // to the pending list so we can correctly update the clients.
            mCancelledThumbnails.add(r);
        }

        if (mResumedActivity == r) {
            boolean endTask = index <= 0
                    || ((HistoryRecord)mHistory.get(index-1)).task != r.task;
            if (DEBUG_TRANSITION) Slog.v(TAG,
                    "Prepare close transition: finishing " + r);
            mWindowManager.prepareAppTransition(endTask
                    ? WindowManagerPolicy.TRANSIT_TASK_CLOSE
                    : WindowManagerPolicy.TRANSIT_ACTIVITY_CLOSE);
    
            // Tell window manager to prepare for this one to be removed.
            mWindowManager.setAppVisibility(r, false);
                
            if (mPausingActivity == null) {
                if (DEBUG_PAUSE) Slog.v(TAG, "Finish needs to pause: " + r);
                if (DEBUG_USER_LEAVING) Slog.v(TAG, "finish() => pause with userLeaving=false");
                startPausingLocked(false, false);
            }

        } else if (r.state != ActivityState.PAUSING) {
            // If the activity is PAUSING, we will complete the finish once
            // it is done pausing; else we can just directly finish it here.
            if (DEBUG_PAUSE) Slog.v(TAG, "Finish not pausing: " + r);
            return finishCurrentActivityLocked(r, index,
                    FINISH_AFTER_PAUSE) == null;
        } else {
            if (DEBUG_PAUSE) Slog.v(TAG, "Finish waiting for pause of: " + r);
        }

        return false;
    }

    private static final int FINISH_IMMEDIATELY = 0;
    private static final int FINISH_AFTER_PAUSE = 1;
    private static final int FINISH_AFTER_VISIBLE = 2;

    private final HistoryRecord finishCurrentActivityLocked(HistoryRecord r,
            int mode) {
        final int index = indexOfTokenLocked(r);
        if (index < 0) {
            return null;
        }

        return finishCurrentActivityLocked(r, index, mode);
    }

    private final HistoryRecord finishCurrentActivityLocked(HistoryRecord r,
            int index, int mode) {
        // First things first: if this activity is currently visible,
        // and the resumed activity is not yet visible, then hold off on
        // finishing until the resumed one becomes visible.
        if (mode == FINISH_AFTER_VISIBLE && r.nowVisible) {
            if (!mStoppingActivities.contains(r)) {
                mStoppingActivities.add(r);
                if (mStoppingActivities.size() > 3) {
                    // If we already have a few activities waiting to stop,
                    // then give up on things going idle and start clearing
                    // them out.
                    Message msg = Message.obtain();
                    msg.what = ActivityManagerService.IDLE_NOW_MSG;
                    mHandler.sendMessage(msg);
                }
            }
            r.state = ActivityState.STOPPING;
            updateOomAdjLocked();
            return r;
        }

        // make sure the record is cleaned out of other places.
        mStoppingActivities.remove(r);
        mWaitingVisibleActivities.remove(r);
        if (mResumedActivity == r) {
            mResumedActivity = null;
        }
        final ActivityState prevState = r.state;
        r.state = ActivityState.FINISHING;

        if (mode == FINISH_IMMEDIATELY
                || prevState == ActivityState.STOPPED
                || prevState == ActivityState.INITIALIZING) {
            // If this activity is already stopped, we can just finish
            // it right now.
            return destroyActivityLocked(r, true) ? null : r;
        } else {
            // Need to go through the full pause cycle to get this
            // activity into the stopped state and then finish it.
            if (localLOGV) Slog.v(TAG, "Enqueueing pending finish: " + r);
            mFinishingActivities.add(r);
            resumeTopActivityLocked(null);
        }
        return r;
    }

    /**
     * This is the internal entry point for handling Activity.finish().
     * 
     * @param token The Binder token referencing the Activity we want to finish.
     * @param resultCode Result code, if any, from this Activity.
     * @param resultData Result data (Intent), if any, from this Activity.
     * 
     * @return Returns true if the activity successfully finished, or false if it is still running.
     */
    public final boolean finishActivity(IBinder token, int resultCode, Intent resultData) {
        // Refuse possible leaked file descriptors
        if (resultData != null && resultData.hasFileDescriptors() == true) {
            throw new IllegalArgumentException("File descriptors passed in Intent");
        }

        synchronized(this) {
            if (mController != null) {
                // Find the first activity that is not finishing.
                HistoryRecord next = topRunningActivityLocked(token, 0);
                if (next != null) {
                    // ask watcher if this is allowed
                    boolean resumeOK = true;
                    try {
                        resumeOK = mController.activityResuming(next.packageName);
                    } catch (RemoteException e) {
                        mController = null;
                    }
    
                    if (!resumeOK) {
                        return false;
                    }
                }
            }
            final long origId = Binder.clearCallingIdentity();
            boolean res = requestFinishActivityLocked(token, resultCode,
                    resultData, "app-request");
            Binder.restoreCallingIdentity(origId);
            return res;
        }
    }

    void sendActivityResultLocked(int callingUid, HistoryRecord r,
            String resultWho, int requestCode, int resultCode, Intent data) {

        if (callingUid > 0) {
            grantUriPermissionFromIntentLocked(callingUid, r.packageName,
                    data, r);
        }

        if (DEBUG_RESULTS) Slog.v(TAG, "Send activity result to " + r
                + " : who=" + resultWho + " req=" + requestCode
                + " res=" + resultCode + " data=" + data);
        if (mResumedActivity == r && r.app != null && r.app.thread != null) {
            try {
                ArrayList<ResultInfo> list = new ArrayList();
                list.add(new ResultInfo(resultWho, requestCode,
                        resultCode, data));
                r.app.thread.scheduleSendResult(r, list);
                return;
            } catch (Exception e) {
                Slog.w(TAG, "Exception thrown sending result to " + r, e);
            }
        }

        r.addResultLocked(null, resultWho, requestCode, resultCode, data);
    }

    public final void finishSubActivity(IBinder token, String resultWho,
            int requestCode) {
        synchronized(this) {
            int index = indexOfTokenLocked(token);
            if (index < 0) {
                return;
            }
            HistoryRecord self = (HistoryRecord)mHistory.get(index);

            final long origId = Binder.clearCallingIdentity();

            int i;
            for (i=mHistory.size()-1; i>=0; i--) {
                HistoryRecord r = (HistoryRecord)mHistory.get(i);
                if (r.resultTo == self && r.requestCode == requestCode) {
                    if ((r.resultWho == null && resultWho == null) ||
                        (r.resultWho != null && r.resultWho.equals(resultWho))) {
                        finishActivityLocked(r, i,
                                Activity.RESULT_CANCELED, null, "request-sub");
                    }
                }
            }

            Binder.restoreCallingIdentity(origId);
        }
    }

    public boolean willActivityBeVisible(IBinder token) {
        synchronized(this) {
            int i;
            for (i=mHistory.size()-1; i>=0; i--) {
                HistoryRecord r = (HistoryRecord)mHistory.get(i);
                if (r == token) {
                    return true;
                }
                if (r.fullscreen && !r.finishing) {
                    return false;
                }
            }
            return true;
        }
    }
    
    public void overridePendingTransition(IBinder token, String packageName,
            int enterAnim, int exitAnim) {
        synchronized(this) {
            int index = indexOfTokenLocked(token);
            if (index < 0) {
                return;
            }
            HistoryRecord self = (HistoryRecord)mHistory.get(index);

            final long origId = Binder.clearCallingIdentity();
            
            if (self.state == ActivityState.RESUMED
                    || self.state == ActivityState.PAUSING) {
                mWindowManager.overridePendingAppTransition(packageName,
                        enterAnim, exitAnim);
            }
            
            Binder.restoreCallingIdentity(origId);
        }
    }
    
    /**
     * Perform clean-up of service connections in an activity record.
     */
    private final void cleanUpActivityServicesLocked(HistoryRecord r) {
        // Throw away any services that have been bound by this activity.
        if (r.connections != null) {
            Iterator<ConnectionRecord> it = r.connections.iterator();
            while (it.hasNext()) {
                ConnectionRecord c = it.next();
                removeConnectionLocked(c, null, r);
            }
            r.connections = null;
        }
    }
    
    /**
     * Perform the common clean-up of an activity record.  This is called both
     * as part of destroyActivityLocked() (when destroying the client-side
     * representation) and cleaning things up as a result of its hosting
     * processing going away, in which case there is no remaining client-side
     * state to destroy so only the cleanup here is needed.
     */
    private final void cleanUpActivityLocked(HistoryRecord r, boolean cleanServices) {
        if (mResumedActivity == r) {
            mResumedActivity = null;
        }
        if (mFocusedActivity == r) {
            mFocusedActivity = null;
        }

        r.configDestroy = false;
        r.frozenBeforeDestroy = false;

        // Make sure this record is no longer in the pending finishes list.
        // This could happen, for example, if we are trimming activities
        // down to the max limit while they are still waiting to finish.
        mFinishingActivities.remove(r);
        mWaitingVisibleActivities.remove(r);
        
        // Remove any pending results.
        if (r.finishing && r.pendingResults != null) {
            for (WeakReference<PendingIntentRecord> apr : r.pendingResults) {
                PendingIntentRecord rec = apr.get();
                if (rec != null) {
                    cancelIntentSenderLocked(rec, false);
                }
            }
            r.pendingResults = null;
        }

        if (cleanServices) {
            cleanUpActivityServicesLocked(r);            
        }

        if (mPendingThumbnails.size() > 0) {
            // There are clients waiting to receive thumbnails so, in case
            // this is an activity that someone is waiting for, add it
            // to the pending list so we can correctly update the clients.
            mCancelledThumbnails.add(r);
        }

        // Get rid of any pending idle timeouts.
        mHandler.removeMessages(PAUSE_TIMEOUT_MSG, r);
        mHandler.removeMessages(IDLE_TIMEOUT_MSG, r);
    }

    private final void removeActivityFromHistoryLocked(HistoryRecord r) {
        if (r.state != ActivityState.DESTROYED) {
            mHistory.remove(r);
            r.inHistory = false;
            r.state = ActivityState.DESTROYED;
            mWindowManager.removeAppToken(r);
            if (VALIDATE_TOKENS) {
                mWindowManager.validateAppTokens(mHistory);
            }
            cleanUpActivityServicesLocked(r);
            removeActivityUriPermissionsLocked(r);
        }
    }
    
    /**
     * Destroy the current CLIENT SIDE instance of an activity.  This may be
     * called both when actually finishing an activity, or when performing
     * a configuration switch where we destroy the current client-side object
     * but then create a new client-side object for this same HistoryRecord.
     */
    private final boolean destroyActivityLocked(HistoryRecord r,
            boolean removeFromApp) {
        if (DEBUG_SWITCH) Slog.v(
            TAG, "Removing activity: token=" + r
              + ", app=" + (r.app != null ? r.app.processName : "(null)"));
        EventLog.writeEvent(EventLogTags.AM_DESTROY_ACTIVITY,
                System.identityHashCode(r),
                r.task.taskId, r.shortComponentName);

        boolean removedFromHistory = false;
        
        cleanUpActivityLocked(r, false);

        final boolean hadApp = r.app != null;
        
        if (hadApp) {
            if (removeFromApp) {
                int idx = r.app.activities.indexOf(r);
                if (idx >= 0) {
                    r.app.activities.remove(idx);
                }
                if (r.persistent) {
                    decPersistentCountLocked(r.app);
                }
                if (r.app.activities.size() == 0) {
                    // No longer have activities, so update location in
                    // LRU list.
                    updateLruProcessLocked(r.app, true, false);
                }
            }

            boolean skipDestroy = false;
            
            try {
                if (DEBUG_SWITCH) Slog.i(TAG, "Destroying: " + r);
                r.app.thread.scheduleDestroyActivity(r, r.finishing,
                        r.configChangeFlags);
            } catch (Exception e) {
                // We can just ignore exceptions here...  if the process
                // has crashed, our death notification will clean things
                // up.
                //Slog.w(TAG, "Exception thrown during finish", e);
                if (r.finishing) {
                    removeActivityFromHistoryLocked(r);
                    removedFromHistory = true;
                    skipDestroy = true;
                }
            }

            r.app = null;
            r.nowVisible = false;
            
            if (r.finishing && !skipDestroy) {
                r.state = ActivityState.DESTROYING;
                Message msg = mHandler.obtainMessage(DESTROY_TIMEOUT_MSG);
                msg.obj = r;
                mHandler.sendMessageDelayed(msg, DESTROY_TIMEOUT);
            } else {
                r.state = ActivityState.DESTROYED;
            }
        } else {
            // remove this record from the history.
            if (r.finishing) {
                removeActivityFromHistoryLocked(r);
                removedFromHistory = true;
            } else {
                r.state = ActivityState.DESTROYED;
            }
        }

        r.configChangeFlags = 0;
        
        if (!mLRUActivities.remove(r) && hadApp) {
            Slog.w(TAG, "Activity " + r + " being finished, but not in LRU list");
        }
        
        return removedFromHistory;
    }

    private static void removeHistoryRecordsForAppLocked(ArrayList list, ProcessRecord app) {
        int i = list.size();
        if (localLOGV) Slog.v(
            TAG, "Removing app " + app + " from list " + list
            + " with " + i + " entries");
        while (i > 0) {
            i--;
            HistoryRecord r = (HistoryRecord)list.get(i);
            if (localLOGV) Slog.v(
                TAG, "Record #" + i + " " + r + ": app=" + r.app);
            if (r.app == app) {
                if (localLOGV) Slog.v(TAG, "Removing this entry!");
                list.remove(i);
            }
        }
    }

    /**
     * Main function for removing an existing process from the activity manager
     * as a result of that process going away.  Clears out all connections
     * to the process.
     */
    private final void handleAppDiedLocked(ProcessRecord app,
            boolean restarting) {
        cleanUpApplicationRecordLocked(app, restarting, -1);
        if (!restarting) {
            mLruProcesses.remove(app);
        }

        // Just in case...
        if (mPausingActivity != null && mPausingActivity.app == app) {
            if (DEBUG_PAUSE) Slog.v(TAG, "App died while pausing: " + mPausingActivity);
            mPausingActivity = null;
        }
        if (mLastPausedActivity != null && mLastPausedActivity.app == app) {
            mLastPausedActivity = null;
        }

        // Remove this application's activities from active lists.
        removeHistoryRecordsForAppLocked(mLRUActivities, app);
        removeHistoryRecordsForAppLocked(mStoppingActivities, app);
        removeHistoryRecordsForAppLocked(mWaitingVisibleActivities, app);
        removeHistoryRecordsForAppLocked(mFinishingActivities, app);

        boolean atTop = true;
        boolean hasVisibleActivities = false;

        // Clean out the history list.
        int i = mHistory.size();
        if (localLOGV) Slog.v(
            TAG, "Removing app " + app + " from history with " + i + " entries");
        while (i > 0) {
            i--;
            HistoryRecord r = (HistoryRecord)mHistory.get(i);
            if (localLOGV) Slog.v(
                TAG, "Record #" + i + " " + r + ": app=" + r.app);
            if (r.app == app) {
                if ((!r.haveState && !r.stateNotNeeded) || r.finishing) {
                    if (localLOGV) Slog.v(
                        TAG, "Removing this entry!  frozen=" + r.haveState
                        + " finishing=" + r.finishing);
                    mHistory.remove(i);

                    r.inHistory = false;
                    mWindowManager.removeAppToken(r);
                    if (VALIDATE_TOKENS) {
                        mWindowManager.validateAppTokens(mHistory);
                    }
                    removeActivityUriPermissionsLocked(r);

                } else {
                    // We have the current state for this activity, so
                    // it can be restarted later when needed.
                    if (localLOGV) Slog.v(
                        TAG, "Keeping entry, setting app to null");
                    if (r.visible) {
                        hasVisibleActivities = true;
                    }
                    r.app = null;
                    r.nowVisible = false;
                    if (!r.haveState) {
                        r.icicle = null;
                    }
                }

                cleanUpActivityLocked(r, true);
                r.state = ActivityState.STOPPED;
            }
            atTop = false;
        }

        app.activities.clear();
        
        if (app.instrumentationClass != null) {
            Slog.w(TAG, "Crash of app " + app.processName
                  + " running instrumentation " + app.instrumentationClass);
            Bundle info = new Bundle();
            info.putString("shortMsg", "Process crashed.");
            finishInstrumentationLocked(app, Activity.RESULT_CANCELED, info);
        }

        if (!restarting) {
            if (!resumeTopActivityLocked(null)) {
                // If there was nothing to resume, and we are not already
                // restarting this process, but there is a visible activity that
                // is hosted by the process...  then make sure all visible
                // activities are running, taking care of restarting this
                // process.
                if (hasVisibleActivities) {
                    ensureActivitiesVisibleLocked(null, 0);
                }
            }
        }
    }

    private final int getLRURecordIndexForAppLocked(IApplicationThread thread) {
        IBinder threadBinder = thread.asBinder();

        // Find the application record.
        for (int i=mLruProcesses.size()-1; i>=0; i--) {
            ProcessRecord rec = mLruProcesses.get(i);
            if (rec.thread != null && rec.thread.asBinder() == threadBinder) {
                return i;
            }
        }
        return -1;
    }

    private final ProcessRecord getRecordForAppLocked(
            IApplicationThread thread) {
        if (thread == null) {
            return null;
        }

        int appIndex = getLRURecordIndexForAppLocked(thread);
        return appIndex >= 0 ? mLruProcesses.get(appIndex) : null;
    }

    private final void appDiedLocked(ProcessRecord app, int pid,
            IApplicationThread thread) {

        mProcDeaths[0]++;
        
        // Clean up already done if the process has been re-started.
        if (app.pid == pid && app.thread != null &&
                app.thread.asBinder() == thread.asBinder()) {
            if (!app.killedBackground) {
                Slog.i(TAG, "Process " + app.processName + " (pid " + pid
                        + ") has died.");
            }
            EventLog.writeEvent(EventLogTags.AM_PROC_DIED, app.pid, app.processName);
            if (localLOGV) Slog.v(
                TAG, "Dying app: " + app + ", pid: " + pid
                + ", thread: " + thread.asBinder());
            boolean doLowMem = app.instrumentationClass == null;
            handleAppDiedLocked(app, false);

            if (doLowMem) {
                // If there are no longer any background processes running,
                // and the app that died was not running instrumentation,
                // then tell everyone we are now low on memory.
                boolean haveBg = false;
                for (int i=mLruProcesses.size()-1; i>=0; i--) {
                    ProcessRecord rec = mLruProcesses.get(i);
                    if (rec.thread != null && rec.setAdj >= HIDDEN_APP_MIN_ADJ) {
                        haveBg = true;
                        break;
                    }
                }
                
                if (!haveBg) {
                    Slog.i(TAG, "Low Memory: No more background processes.");
                    EventLog.writeEvent(EventLogTags.AM_LOW_MEMORY, mLruProcesses.size());
                    long now = SystemClock.uptimeMillis();
                    for (int i=mLruProcesses.size()-1; i>=0; i--) {
                        ProcessRecord rec = mLruProcesses.get(i);
                        if (rec != app && rec.thread != null &&
                                (rec.lastLowMemory+GC_MIN_INTERVAL) <= now) {
                            // The low memory report is overriding any current
                            // state for a GC request.  Make sure to do
                            // visible/foreground processes first.
                            if (rec.setAdj <= VISIBLE_APP_ADJ) {
                                rec.lastRequestedGc = 0;
                            } else {
                                rec.lastRequestedGc = rec.lastLowMemory;
                            }
                            rec.reportLowMemory = true;
                            rec.lastLowMemory = now;
                            mProcessesToGc.remove(rec);
                            addProcessToGcListLocked(rec);
                        }
                    }
                    scheduleAppGcsLocked();
                }
            }
        } else if (app.pid != pid) {
            // A new process has already been started.
            Slog.i(TAG, "Process " + app.processName + " (pid " + pid
                    + ") has died and restarted (pid " + app.pid + ").");
            EventLog.writeEvent(EventLogTags.AM_PROC_DIED, app.pid, app.processName);
        } else if (DEBUG_PROCESSES) {
            Slog.d(TAG, "Received spurious death notification for thread "
                    + thread.asBinder());
        }
    }

    /**
     * If a stack trace dump file is configured, dump process stack traces.
     * @param clearTraces causes the dump file to be erased prior to the new
     *    traces being written, if true; when false, the new traces will be
     *    appended to any existing file content.
     * @param pids of dalvik VM processes to dump stack traces for
     * @return file containing stack traces, or null if no dump file is configured
     */
    public static File dumpStackTraces(boolean clearTraces, ArrayList<Integer> pids) {
        String tracesPath = SystemProperties.get("dalvik.vm.stack-trace-file", null);
        if (tracesPath == null || tracesPath.length() == 0) {
            return null;
        }

        File tracesFile = new File(tracesPath);
        try {
            File tracesDir = tracesFile.getParentFile();
            if (!tracesDir.exists()) tracesFile.mkdirs();
            FileUtils.setPermissions(tracesDir.getPath(), 0775, -1, -1);  // drwxrwxr-x

            if (clearTraces && tracesFile.exists()) tracesFile.delete();
            tracesFile.createNewFile();
            FileUtils.setPermissions(tracesFile.getPath(), 0666, -1, -1); // -rw-rw-rw-
        } catch (IOException e) {
            Slog.w(TAG, "Unable to prepare ANR traces file: " + tracesPath, e);
            return null;
        }

        // Use a FileObserver to detect when traces finish writing.
        // The order of traces is considered important to maintain for legibility.
        FileObserver observer = new FileObserver(tracesPath, FileObserver.CLOSE_WRITE) {
            public synchronized void onEvent(int event, String path) { notify(); }
        };

        try {
            observer.startWatching();
            int num = pids.size();
            for (int i = 0; i < num; i++) {
                synchronized (observer) {
                    Process.sendSignal(pids.get(i), Process.SIGNAL_QUIT);
                    observer.wait(200);  // Wait for write-close, give up after 200msec
                }
            }
        } catch (InterruptedException e) {
            Log.wtf(TAG, e);
        } finally {
            observer.stopWatching();
        }

        return tracesFile;
    }

    final void appNotResponding(ProcessRecord app, HistoryRecord activity,
            HistoryRecord parent, final String annotation) {
        ArrayList<Integer> pids = new ArrayList(20);
        
        synchronized (this) {
            // PowerManager.reboot() can block for a long time, so ignore ANRs while shutting down.
            if (mShuttingDown) {
                Slog.i(TAG, "During shutdown skipping ANR: " + app + " " + annotation);
                return;
            } else if (app.notResponding) {
                Slog.i(TAG, "Skipping duplicate ANR: " + app + " " + annotation);
                return;
            } else if (app.crashing) {
                Slog.i(TAG, "Crashing app skipping ANR: " + app + " " + annotation);
                return;
            }
            
            // In case we come through here for the same app before completing
            // this one, mark as anring now so we will bail out.
            app.notResponding = true;

            // Log the ANR to the event log.
            EventLog.writeEvent(EventLogTags.AM_ANR, app.pid, app.processName, app.info.flags,
                    annotation);

            // Dump thread traces as quickly as we can, starting with "interesting" processes.
            pids.add(app.pid);
    
            int parentPid = app.pid;
            if (parent != null && parent.app != null && parent.app.pid > 0) parentPid = parent.app.pid;
            if (parentPid != app.pid) pids.add(parentPid);
    
            if (MY_PID != app.pid && MY_PID != parentPid) pids.add(MY_PID);

            for (int i = mLruProcesses.size() - 1; i >= 0; i--) {
                ProcessRecord r = mLruProcesses.get(i);
                if (r != null && r.thread != null) {
                    int pid = r.pid;
                    if (pid > 0 && pid != app.pid && pid != parentPid && pid != MY_PID) pids.add(pid);
                }
            }
        }

        File tracesFile = dumpStackTraces(true, pids);

        // Log the ANR to the main log.
        StringBuilder info = mStringBuilder;
        info.setLength(0);
        info.append("ANR in ").append(app.processName);
        if (activity != null && activity.shortComponentName != null) {
            info.append(" (").append(activity.shortComponentName).append(")");
        }
        info.append("\n");
        if (annotation != null) {
            info.append("Reason: ").append(annotation).append("\n");
        }
        if (parent != null && parent != activity) {
            info.append("Parent: ").append(parent.shortComponentName).append("\n");
        }

        String cpuInfo = null;
        if (MONITOR_CPU_USAGE) {
            updateCpuStatsNow();
            synchronized (mProcessStatsThread) {
                cpuInfo = mProcessStats.printCurrentState();
            }
            info.append(cpuInfo);
        }

        Slog.e(TAG, info.toString());
        if (tracesFile == null) {
            // There is no trace file, so dump (only) the alleged culprit's threads to the log
            Process.sendSignal(app.pid, Process.SIGNAL_QUIT);
        }

        addErrorToDropBox("anr", app, activity, parent, annotation, cpuInfo, tracesFile, null);

        if (mController != null) {
            try {
                // 0 == show dialog, 1 = keep waiting, -1 = kill process immediately
                int res = mController.appNotResponding(app.processName, app.pid, info.toString());
                if (res != 0) {
                    if (res < 0 && app.pid != MY_PID) Process.killProcess(app.pid);
                    return;
                }
            } catch (RemoteException e) {
                mController = null;
            }
        }

        // Unless configured otherwise, swallow ANRs in background processes & kill the process.
        boolean showBackground = Settings.Secure.getInt(mContext.getContentResolver(),
                Settings.Secure.ANR_SHOW_BACKGROUND, 0) != 0;
        
        synchronized (this) {
            if (!showBackground && !app.isInterestingToUserLocked() && app.pid != MY_PID) {
                Process.killProcess(app.pid);
                return;
            }
    
            // Set the app's notResponding state, and look up the errorReportReceiver
            makeAppNotRespondingLocked(app,
                    activity != null ? activity.shortComponentName : null,
                    annotation != null ? "ANR " + annotation : "ANR",
                    info.toString());
    
            // Bring up the infamous App Not Responding dialog
            Message msg = Message.obtain();
            HashMap map = new HashMap();
            msg.what = SHOW_NOT_RESPONDING_MSG;
            msg.obj = map;
            map.put("app", app);
            if (activity != null) {
                map.put("activity", activity);
            }
    
            mHandler.sendMessage(msg);
        }
    }

    private final void decPersistentCountLocked(ProcessRecord app)
    {
        app.persistentActivities--;
        if (app.persistentActivities > 0) {
            // Still more of 'em...
            return;
        }
        if (app.persistent) {
            // Ah, but the application itself is persistent.  Whatever!
            return;
        }

        // App is no longer persistent...  make sure it and the ones
        // following it in the LRU list have the correc oom_adj.
        updateOomAdjLocked();
    }

    public void setPersistent(IBinder token, boolean isPersistent) {
        if (checkCallingPermission(android.Manifest.permission.PERSISTENT_ACTIVITY)
                != PackageManager.PERMISSION_GRANTED) {
            String msg = "Permission Denial: setPersistent() from pid="
                    + Binder.getCallingPid()
                    + ", uid=" + Binder.getCallingUid()
                    + " requires " + android.Manifest.permission.PERSISTENT_ACTIVITY;
            Slog.w(TAG, msg);
            throw new SecurityException(msg);
        }

        synchronized(this) {
            int index = indexOfTokenLocked(token);
            if (index < 0) {
                return;
            }
            HistoryRecord r = (HistoryRecord)mHistory.get(index);
            ProcessRecord app = r.app;

            if (localLOGV) Slog.v(
                TAG, "Setting persistence " + isPersistent + ": " + r);

            if (isPersistent) {
                if (r.persistent) {
                    // Okay okay, I heard you already!
                    if (localLOGV) Slog.v(TAG, "Already persistent!");
                    return;
                }
                r.persistent = true;
                app.persistentActivities++;
                if (localLOGV) Slog.v(TAG, "Num persistent now: " + app.persistentActivities);
                if (app.persistentActivities > 1) {
                    // We aren't the first...
                    if (localLOGV) Slog.v(TAG, "Not the first!");
                    return;
                }
                if (app.persistent) {
                    // This would be redundant.
                    if (localLOGV) Slog.v(TAG, "App is persistent!");
                    return;
                }

                // App is now persistent...  make sure it and the ones
                // following it now have the correct oom_adj.
                final long origId = Binder.clearCallingIdentity();
                updateOomAdjLocked();
                Binder.restoreCallingIdentity(origId);

            } else {
                if (!r.persistent) {
                    // Okay okay, I heard you already!
                    return;
                }
                r.persistent = false;
                final long origId = Binder.clearCallingIdentity();
                decPersistentCountLocked(app);
                Binder.restoreCallingIdentity(origId);

            }
        }
    }
    
    public boolean clearApplicationUserData(final String packageName,
            final IPackageDataObserver observer) {
        int uid = Binder.getCallingUid();
        int pid = Binder.getCallingPid();
        long callingId = Binder.clearCallingIdentity();
        try {
            IPackageManager pm = ActivityThread.getPackageManager();
            int pkgUid = -1;
            synchronized(this) {
                try {
                    pkgUid = pm.getPackageUid(packageName);
                } catch (RemoteException e) {
                }
                if (pkgUid == -1) {
                    Slog.w(TAG, "Invalid packageName:" + packageName);
                    return false;
                }
                if (uid == pkgUid || checkComponentPermission(
                        android.Manifest.permission.CLEAR_APP_USER_DATA,
                        pid, uid, -1)
                        == PackageManager.PERMISSION_GRANTED) {
                    forceStopPackageLocked(packageName, pkgUid);
                } else {
                    throw new SecurityException(pid+" does not have permission:"+
                            android.Manifest.permission.CLEAR_APP_USER_DATA+" to clear data" +
                                    "for process:"+packageName);
                }
            }
            
            try {
                //clear application user data
                pm.clearApplicationUserData(packageName, observer);
                Intent intent = new Intent(Intent.ACTION_PACKAGE_DATA_CLEARED,
                        Uri.fromParts("package", packageName, null));
                intent.putExtra(Intent.EXTRA_UID, pkgUid);
                synchronized (this) {
                    broadcastIntentLocked(null, null, intent,
                            null, null, 0, null, null, null,
                            false, false, MY_PID, Process.SYSTEM_UID);
                }
            } catch (RemoteException e) {
            }
        } finally {
            Binder.restoreCallingIdentity(callingId);
        }
        return true;
    }

    public void killBackgroundProcesses(final String packageName) {
        if (checkCallingPermission(android.Manifest.permission.KILL_BACKGROUND_PROCESSES)
                != PackageManager.PERMISSION_GRANTED &&
                checkCallingPermission(android.Manifest.permission.RESTART_PACKAGES)
                        != PackageManager.PERMISSION_GRANTED) {
            String msg = "Permission Denial: killBackgroundProcesses() from pid="
                    + Binder.getCallingPid()
                    + ", uid=" + Binder.getCallingUid()
                    + " requires " + android.Manifest.permission.KILL_BACKGROUND_PROCESSES;
            Slog.w(TAG, msg);
            throw new SecurityException(msg);
        }
        
        long callingId = Binder.clearCallingIdentity();
        try {
            IPackageManager pm = ActivityThread.getPackageManager();
            int pkgUid = -1;
            synchronized(this) {
                try {
                    pkgUid = pm.getPackageUid(packageName);
                } catch (RemoteException e) {
                }
                if (pkgUid == -1) {
                    Slog.w(TAG, "Invalid packageName: " + packageName);
                    return;
                }
                killPackageProcessesLocked(packageName, pkgUid,
                        SECONDARY_SERVER_ADJ, false, true);
            }
        } finally {
            Binder.restoreCallingIdentity(callingId);
        }
    }

    public void forceStopPackage(final String packageName) {
        if (checkCallingPermission(android.Manifest.permission.FORCE_STOP_PACKAGES)
                != PackageManager.PERMISSION_GRANTED) {
            String msg = "Permission Denial: forceStopPackage() from pid="
                    + Binder.getCallingPid()
                    + ", uid=" + Binder.getCallingUid()
                    + " requires " + android.Manifest.permission.FORCE_STOP_PACKAGES;
            Slog.w(TAG, msg);
            throw new SecurityException(msg);
        }
        
        long callingId = Binder.clearCallingIdentity();
        try {
            IPackageManager pm = ActivityThread.getPackageManager();
            int pkgUid = -1;
            synchronized(this) {
                try {
                    pkgUid = pm.getPackageUid(packageName);
                } catch (RemoteException e) {
                }
                if (pkgUid == -1) {
                    Slog.w(TAG, "Invalid packageName: " + packageName);
                    return;
                }
                forceStopPackageLocked(packageName, pkgUid);
            }
        } finally {
            Binder.restoreCallingIdentity(callingId);
        }
    }

    /*
     * The pkg name and uid have to be specified.
     * @see android.app.IActivityManager#killApplicationWithUid(java.lang.String, int)
     */
    public void killApplicationWithUid(String pkg, int uid) {
        if (pkg == null) {
            return;
        }
        // Make sure the uid is valid.
        if (uid < 0) {
            Slog.w(TAG, "Invalid uid specified for pkg : " + pkg);
            return;
        }
        int callerUid = Binder.getCallingUid();
        // Only the system server can kill an application
        if (callerUid == Process.SYSTEM_UID) {
            // Post an aysnc message to kill the application
            Message msg = mHandler.obtainMessage(KILL_APPLICATION_MSG);
            msg.arg1 = uid;
            msg.arg2 = 0;
            msg.obj = pkg;
            mHandler.sendMessage(msg);
        } else {
            throw new SecurityException(callerUid + " cannot kill pkg: " +
                    pkg);
        }
    }

    public void closeSystemDialogs(String reason) {
        Intent intent = new Intent(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);
        if (reason != null) {
            intent.putExtra("reason", reason);
        }
        
        final int uid = Binder.getCallingUid();
        final long origId = Binder.clearCallingIdentity();
        synchronized (this) {
            int i = mWatchers.beginBroadcast();
            while (i > 0) {
                i--;
                IActivityWatcher w = mWatchers.getBroadcastItem(i);
                if (w != null) {
                    try {
                        w.closingSystemDialogs(reason);
                    } catch (RemoteException e) {
                    }
                }
            }
            mWatchers.finishBroadcast();
            
            mWindowManager.closeSystemDialogs(reason);
            
            for (i=mHistory.size()-1; i>=0; i--) {
                HistoryRecord r = (HistoryRecord)mHistory.get(i);
                if ((r.info.flags&ActivityInfo.FLAG_FINISH_ON_CLOSE_SYSTEM_DIALOGS) != 0) {
                    finishActivityLocked(r, i,
                            Activity.RESULT_CANCELED, null, "close-sys");
                }
            }
            
            broadcastIntentLocked(null, null, intent, null,
                    null, 0, null, null, null, false, false, -1, uid);
        }
        Binder.restoreCallingIdentity(origId);
    }
    
    public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids)
            throws RemoteException {
        Debug.MemoryInfo[] infos = new Debug.MemoryInfo[pids.length];
        for (int i=pids.length-1; i>=0; i--) {
            infos[i] = new Debug.MemoryInfo();
            Debug.getMemoryInfo(pids[i], infos[i]);
        }
        return infos;
    }

    public void killApplicationProcess(String processName, int uid) {
        if (processName == null) {
            return;
        }

        int callerUid = Binder.getCallingUid();
        // Only the system server can kill an application
        if (callerUid == Process.SYSTEM_UID) {
            synchronized (this) {
                ProcessRecord app = getProcessRecordLocked(processName, uid);
                if (app != null) {
                    try {
                        app.thread.scheduleSuicide();
                    } catch (RemoteException e) {
                        // If the other end already died, then our work here is done.
                    }
                } else {
                    Slog.w(TAG, "Process/uid not found attempting kill of "
                            + processName + " / " + uid);
                }
            }
        } else {
            throw new SecurityException(callerUid + " cannot kill app process: " +
                    processName);
        }
    }

    private void forceStopPackageLocked(final String packageName, int uid) {
        forceStopPackageLocked(packageName, uid, false, false, true);
        Intent intent = new Intent(Intent.ACTION_PACKAGE_RESTARTED,
                Uri.fromParts("package", packageName, null));
        intent.putExtra(Intent.EXTRA_UID, uid);
        broadcastIntentLocked(null, null, intent,
                null, null, 0, null, null, null,
                false, false, MY_PID, Process.SYSTEM_UID);
    }
    
    private final boolean killPackageProcessesLocked(String packageName, int uid,
            int minOomAdj, boolean callerWillRestart, boolean doit) {
        ArrayList<ProcessRecord> procs = new ArrayList();

        // Remove all processes this package may have touched: all with the
        // same UID (except for the system or root user), and all whose name
        // matches the package name.
        final String procNamePrefix = packageName + ":";
        for (SparseArray<ProcessRecord> apps : mProcessNames.getMap().values()) {
            final int NA = apps.size();
            for (int ia=0; ia<NA; ia++) {
                ProcessRecord app = apps.valueAt(ia);
                if (app.removed) {
                    if (doit) {
                        procs.add(app);
                    }
                } else if ((uid > 0 && uid != Process.SYSTEM_UID && app.info.uid == uid)
                        || app.processName.equals(packageName)
                        || app.processName.startsWith(procNamePrefix)) {
                    if (app.setAdj >= minOomAdj) {
                        if (!doit) {
                            return true;
                        }
                        app.removed = true;
                        procs.add(app);
                    }
                }
            }
        }
        
        int N = procs.size();
        for (int i=0; i<N; i++) {
            removeProcessLocked(procs.get(i), callerWillRestart);
        }
        return N > 0;
    }

    private final boolean forceStopPackageLocked(String name, int uid,
            boolean callerWillRestart, boolean purgeCache, boolean doit) {
        int i, N;

        if (uid < 0) {
            try {
                uid = ActivityThread.getPackageManager().getPackageUid(name);
            } catch (RemoteException e) {
            }
        }

        if (doit) {
            Slog.i(TAG, "Force stopping package " + name + " uid=" + uid);

            Iterator<SparseArray badApps = mProcessCrashTimes.getMap().values().iterator();
            while (badApps.hasNext()) {
                SparseArray<Long> ba = badApps.next();
                if (ba.get(uid) != null) {
                    badApps.remove();
                }
            }
        }
        
        boolean didSomething = killPackageProcessesLocked(name, uid, -100,
                callerWillRestart, doit);
        
        for (i=mHistory.size()-1; i>=0; i--) {
            HistoryRecord r = (HistoryRecord)mHistory.get(i);
            if (r.packageName.equals(name)) {
                if (!doit) {
                    return true;
                }
                didSomething = true;
                Slog.i(TAG, "  Force finishing activity " + r);
                if (r.app != null) {
                    r.app.removed = true;
                }
                r.app = null;
                finishActivityLocked(r, i, Activity.RESULT_CANCELED, null, "uninstall");
            }
        }

        ArrayList<ServiceRecord> services = new ArrayList();
        for (ServiceRecord service : mServices.values()) {
            if (service.packageName.equals(name)) {
                if (!doit) {
                    return true;
                }
                didSomething = true;
                Slog.i(TAG, "  Force stopping service " + service);
                if (service.app != null) {
                    service.app.removed = true;
                }
                service.app = null;
                services.add(service);
            }
        }

        N = services.size();
        for (i=0; i<N; i++) {
            bringDownServiceLocked(services.get(i), true);
        }
        
        if (doit) {
            if (purgeCache) {
                AttributeCache ac = AttributeCache.instance();
                if (ac != null) {
                    ac.removePackage(name);
                }
            }
            resumeTopActivityLocked(null);
        }
        
        return didSomething;
    }

    private final boolean removeProcessLocked(ProcessRecord app, boolean callerWillRestart) {
        final String name = app.processName;
        final int uid = app.info.uid;
        if (DEBUG_PROCESSES) Slog.d(
            TAG, "Force removing process " + app + " (" + name
            + "/" + uid + ")");

        mProcessNames.remove(name, uid);
        boolean needRestart = false;
        if (app.pid > 0 && app.pid != MY_PID) {
            int pid = app.pid;
            synchronized (mPidsSelfLocked) {
                mPidsSelfLocked.remove(pid);
                mHandler.removeMessages(PROC_START_TIMEOUT_MSG, app);
            }
            handleAppDiedLocked(app, true);
            mLruProcesses.remove(app);
            Process.killProcess(pid);
            
            if (app.persistent) {
                if (!callerWillRestart) {
                    addAppLocked(app.info);
                } else {
                    needRestart = true;
                }
            }
        } else {
            mRemovedProcesses.add(app);
        }
        
        return needRestart;
    }

    private final void processStartTimedOutLocked(ProcessRecord app) {
        final int pid = app.pid;
        boolean gone = false;
        synchronized (mPidsSelfLocked) {
            ProcessRecord knownApp = mPidsSelfLocked.get(pid);
            if (knownApp != null && knownApp.thread == null) {
                mPidsSelfLocked.remove(pid);
                gone = true;
            }        
        }
        
        if (gone) {
            Slog.w(TAG, "Process " + app + " failed to attach");
            EventLog.writeEvent(EventLogTags.AM_PROCESS_START_TIMEOUT, pid, app.info.uid,
                    app.processName);
            mProcessNames.remove(app.processName, app.info.uid);
            // Take care of any launching providers waiting for this process.
            checkAppInLaunchingProvidersLocked(app, true);
            // Take care of any services that are waiting for the process.
            for (int i=0; i<mPendingServices.size(); i++) {
                ServiceRecord sr = mPendingServices.get(i);
                if (app.info.uid == sr.appInfo.uid
                        && app.processName.equals(sr.processName)) {
                    Slog.w(TAG, "Forcing bringing down service: " + sr);
                    mPendingServices.remove(i);
                    i--;
                    bringDownServiceLocked(sr, true);
                }
            }
            Process.killProcess(pid);
            if (mBackupTarget != null && mBackupTarget.app.pid == pid) {
                Slog.w(TAG, "Unattached app died before backup, skipping");
                try {
                    IBackupManager bm = IBackupManager.Stub.asInterface(
                            ServiceManager.getService(Context.BACKUP_SERVICE));
                    bm.agentDisconnected(app.info.packageName);
                } catch (RemoteException e) {
                    // Can't happen; the backup manager is local
                }
            }
            if (mPendingBroadcast != null && mPendingBroadcast.curApp.pid == pid) {
                Slog.w(TAG, "Unattached app died before broadcast acknowledged, skipping");
                mPendingBroadcast = null;
                scheduleBroadcastsLocked();
            }
        } else {
            Slog.w(TAG, "Spurious process start timeout - pid not known for " + app);
        }
    }

    private final boolean attachApplicationLocked(IApplicationThread thread,
            int pid) {

        // Find the application record that is being attached...  either via
        // the pid if we are running in multiple processes, or just pull the
        // next app record if we are emulating process with anonymous threads.
        ProcessRecord app;
        if (pid != MY_PID && pid >= 0) {
            synchronized (mPidsSelfLocked) {
                app = mPidsSelfLocked.get(pid);
            }
        } else if (mStartingProcesses.size() > 0) {
            app = mStartingProcesses.remove(0);
            app.setPid(pid);
        } else {
            app = null;
        }

        if (app == null) {
            Slog.w(TAG, "No pending application record for pid " + pid
                    + " (IApplicationThread " + thread + "); dropping process");
            EventLog.writeEvent(EventLogTags.AM_DROP_PROCESS, pid);
            if (pid > 0 && pid != MY_PID) {
                Process.killProcess(pid);
            } else {
                try {
                    thread.scheduleExit();
                } catch (Exception e) {
                    // Ignore exceptions.
                }
            }
            return false;
        }

        // If this application record is still attached to a previous
        // process, clean it up now.
        if (app.thread != null) {
            handleAppDiedLocked(app, true);
        }

        // Tell the process all about itself.

        if (localLOGV) Slog.v(
                TAG, "Binding process pid " + pid + " to record " + app);

        String processName = app.processName;
        try {
            thread.asBinder().linkToDeath(new AppDeathRecipient(
                    app, pid, thread), 0);
        } catch (RemoteException e) {
            app.resetPackageList();
            startProcessLocked(app, "link fail", processName);
            return false;
        }

        EventLog.writeEvent(EventLogTags.AM_PROC_BOUND, app.pid, app.processName);
        
        app.thread = thread;
        app.curAdj = app.setAdj = -100;
        app.curSchedGroup = Process.THREAD_GROUP_DEFAULT;
        app.setSchedGroup = Process.THREAD_GROUP_BG_NONINTERACTIVE;
        app.forcingToForeground = null;
        app.foregroundServices = false;
        app.debugging = false;

        mHandler.removeMessages(PROC_START_TIMEOUT_MSG, app);

        boolean normalMode = mSystemReady || isAllowedWhileBooting(app.info);
        List providers = normalMode ? generateApplicationProvidersLocked(app) : null;

        if (!normalMode) {
            Slog.i(TAG, "Launching preboot mode app: " + app);
        }
        
        if (localLOGV) Slog.v(
            TAG, "New app record " + app
            + " thread=" + thread.asBinder() + " pid=" + pid);
        try {
            int testMode = IApplicationThread.DEBUG_OFF;
            if (mDebugApp != null && mDebugApp.equals(processName)) {
                testMode = mWaitForDebugger
                    ? IApplicationThread.DEBUG_WAIT
                    : IApplicationThread.DEBUG_ON;
                app.debugging = true;
                if (mDebugTransient) {
                    mDebugApp = mOrigDebugApp;
                    mWaitForDebugger = mOrigWaitForDebugger;
                }
            }
            
            // If the app is being launched for restore or full backup, set it up specially
            boolean isRestrictedBackupMode = false;
            if (mBackupTarget != null && mBackupAppName.equals(processName)) {
                isRestrictedBackupMode = (mBackupTarget.backupMode == BackupRecord.RESTORE)
                        || (mBackupTarget.backupMode == BackupRecord.BACKUP_FULL);
            }
            
            ensurePackageDexOpt(app.instrumentationInfo != null
                    ? app.instrumentationInfo.packageName
                    : app.info.packageName);
            if (app.instrumentationClass != null) {
                ensurePackageDexOpt(app.instrumentationClass.getPackageName());
            }
            if (DEBUG_CONFIGURATION) Slog.v(TAG, "Binding proc "
                    + processName + " with config " + mConfiguration);
            thread.bindApplication(processName, app.instrumentationInfo != null
                    ? app.instrumentationInfo : app.info, providers,
                    app.instrumentationClass, app.instrumentationProfileFile,
                    app.instrumentationArguments, app.instrumentationWatcher, testMode, 
                    isRestrictedBackupMode || !normalMode,
                    mConfiguration, getCommonServicesLocked());
            updateLruProcessLocked(app, false, true);
            app.lastRequestedGc = app.lastLowMemory = SystemClock.uptimeMillis();
        } catch (Exception e) {
            // todo: Yikes!  What should we do?  For now we will try to
            // start another process, but that could easily get us in
            // an infinite loop of restarting processes...
            Slog.w(TAG, "Exception thrown during bind!", e);

            app.resetPackageList();
            startProcessLocked(app, "bind fail", processName);
            return false;
        }

        // Remove this record from the list of starting applications.
        mPersistentStartingProcesses.remove(app);
        mProcessesOnHold.remove(app);

        boolean badApp = false;
        boolean didSomething = false;

        // See if the top visible activity is waiting to run in this process...
        HistoryRecord hr = topRunningActivityLocked(null);
        if (hr != null && normalMode) {
            if (hr.app == null && app.info.uid == hr.info.applicationInfo.uid
                    && processName.equals(hr.processName)) {
                try {
                    if (realStartActivityLocked(hr, app, true, true)) {
                        didSomething = true;
                    }
                } catch (Exception e) {
                    Slog.w(TAG, "Exception in new application when starting activity "
                          + hr.intent.getComponent().flattenToShortString(), e);
                    badApp = true;
                }
            } else {
                ensureActivitiesVisibleLocked(hr, null, processName, 0);
            }
        }

        // Find any services that should be running in this process...
        if (!badApp && mPendingServices.size() > 0) {
            ServiceRecord sr = null;
            try {
                for (int i=0; i<mPendingServices.size(); i++) {
                    sr = mPendingServices.get(i);
                    if (app.info.uid != sr.appInfo.uid
                            || !processName.equals(sr.processName)) {
                        continue;
                    }

                    mPendingServices.remove(i);
                    i--;
                    realStartServiceLocked(sr, app);
                    didSomething = true;
                }
            } catch (Exception e) {
                Slog.w(TAG, "Exception in new application when starting service "
                      + sr.shortName, e);
                badApp = true;
            }
        }

        // Check if the next broadcast receiver is in this process...
        BroadcastRecord br = mPendingBroadcast;
        if (!badApp && br != null && br.curApp == app) {
            try {
                mPendingBroadcast = null;
                processCurBroadcastLocked(br, app);
                didSomething = true;
            } catch (Exception e) {
                Slog.w(TAG, "Exception in new application when starting receiver "
                      + br.curComponent.flattenToShortString(), e);
                badApp = true;
                logBroadcastReceiverDiscard(br);
                finishReceiverLocked(br.receiver, br.resultCode, br.resultData,
                        br.resultExtras, br.resultAbort, true);
                scheduleBroadcastsLocked();
                // We need to reset the state if we fails to start the receiver.
                br.state = BroadcastRecord.IDLE;
            }
        }

        // Check whether the next backup agent is in this process...
        if (!badApp && mBackupTarget != null && mBackupTarget.appInfo.uid == app.info.uid) {
            if (DEBUG_BACKUP) Slog.v(TAG, "New app is backup target, launching agent for " + app);
            ensurePackageDexOpt(mBackupTarget.appInfo.packageName);
            try {
                thread.scheduleCreateBackupAgent(mBackupTarget.appInfo, mBackupTarget.backupMode);
            } catch (Exception e) {
                Slog.w(TAG, "Exception scheduling backup agent creation: ");
                e.printStackTrace();
            }
        }

        if (badApp) {
            // todo: Also need to kill application to deal with all
            // kinds of exceptions.
            handleAppDiedLocked(app, false);
            return false;
        }

        if (!didSomething) {
            updateOomAdjLocked();
        }

        return true;
    }

    public final void attachApplication(IApplicationThread thread) {
        synchronized (this) {
            int callingPid = Binder.getCallingPid();
            final long origId = Binder.clearCallingIdentity();
            attachApplicationLocked(thread, callingPid);
            Binder.restoreCallingIdentity(origId);
        }
    }

    public final void activityIdle(IBinder token, Configuration config) {
        final long origId = Binder.clearCallingIdentity();
        activityIdleInternal(token, false, config);
        Binder.restoreCallingIdentity(origId);
    }

    final ArrayList<HistoryRecord> processStoppingActivitiesLocked(
            boolean remove) {
        int N = mStoppingActivities.size();
        if (N <= 0) return null;

        ArrayList<HistoryRecord> stops = null;

        final boolean nowVisible = mResumedActivity != null
                && mResumedActivity.nowVisible
                && !mResumedActivity.waitingVisible;
        for (int i=0; i<N; i++) {
            HistoryRecord s = mStoppingActivities.get(i);
            if (localLOGV) Slog.v(TAG, "Stopping " + s + ": nowVisible="
                    + nowVisible + " waitingVisible=" + s.waitingVisible
                    + " finishing=" + s.finishing);
            if (s.waitingVisible && nowVisible) {
                mWaitingVisibleActivities.remove(s);
                s.waitingVisible = false;
                if (s.finishing) {
                    // If this activity is finishing, it is sitting on top of
                    // everyone else but we now know it is no longer needed...
                    // so get rid of it.  Otherwise, we need to go through the
                    // normal flow and hide it once we determine that it is
                    // hidden by the activities in front of it.
                    if (localLOGV) Slog.v(TAG, "Before stopping, can hide: " + s);
                    mWindowManager.setAppVisibility(s, false);
                }
            }
            if (!s.waitingVisible && remove) {
                if (localLOGV) Slog.v(TAG, "Ready to stop: " + s);
                if (stops == null) {
                    stops = new ArrayList<HistoryRecord>();
                }
                stops.add(s);
                mStoppingActivities.remove(i);
                N--;
                i--;
            }
        }

        return stops;
    }

    void enableScreenAfterBoot() {
        EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_ENABLE_SCREEN,
                SystemClock.uptimeMillis());
        mWindowManager.enableScreenAfterBoot();
    }

    final void activityIdleInternal(IBinder token, boolean fromTimeout,
            Configuration config) {
        if (localLOGV) Slog.v(TAG, "Activity idle: " + token);

        ArrayList<HistoryRecord> stops = null;
        ArrayList<HistoryRecord> finishes = null;
        ArrayList<HistoryRecord> thumbnails = null;
        int NS = 0;
        int NF = 0;
        int NT = 0;
        IApplicationThread sendThumbnail = null;
        boolean booting = false;
        boolean enableScreen = false;

        synchronized (this) {
            if (token != null) {
                mHandler.removeMessages(IDLE_TIMEOUT_MSG, token);
            }

            // Get the activity record.
            int index = indexOfTokenLocked(token);
            if (index >= 0) {
                HistoryRecord r = (HistoryRecord)mHistory.get(index);

                if (fromTimeout) {
                    reportActivityLaunchedLocked(fromTimeout, r, -1, -1);
                }
                
                // This is a hack to semi-deal with a race condition
                // in the client where it can be constructed with a
                // newer configuration from when we asked it to launch.
                // We'll update with whatever configuration it now says
                // it used to launch.
                if (config != null) {
                    r.configuration = config;
                }
                
                // No longer need to keep the device awake.
                if (mResumedActivity == r && mLaunchingActivity.isHeld()) {
                    mHandler.removeMessages(LAUNCH_TIMEOUT_MSG);
                    mLaunchingActivity.release();
                }

                // We are now idle.  If someone is waiting for a thumbnail from
                // us, we can now deliver.
                r.idle = true;
                scheduleAppGcsLocked();
                if (r.thumbnailNeeded && r.app != null && r.app.thread != null) {
                    sendThumbnail = r.app.thread;
                    r.thumbnailNeeded = false;
                }

                // If this activity is fullscreen, set up to hide those under it.

                if (DEBUG_VISBILITY) Slog.v(TAG, "Idle activity for " + r);
                ensureActivitiesVisibleLocked(null, 0);

                //Slog.i(TAG, "IDLE: mBooted=" + mBooted + ", fromTimeout=" + fromTimeout);
                if (!mBooted && !fromTimeout) {
                    mBooted = true;
                    enableScreen = true;
                }
                
            } else if (fromTimeout) {
                reportActivityLaunchedLocked(fromTimeout, null, -1, -1);
            }

            // Atomically retrieve all of the other things to do.
            stops = processStoppingActivitiesLocked(true);
            NS = stops != null ? stops.size() : 0;
            if ((NF=mFinishingActivities.size()) > 0) {
                finishes = new ArrayList<HistoryRecord>(mFinishingActivities);
                mFinishingActivities.clear();
            }
            if ((NT=mCancelledThumbnails.size()) > 0) {
                thumbnails = new ArrayList<HistoryRecord>(mCancelledThumbnails);
                mCancelledThumbnails.clear();
            }

            booting = mBooting;
            mBooting = false;
        }

        int i;

        // Send thumbnail if requested.
        if (sendThumbnail != null) {
            try {
                sendThumbnail.requestThumbnail(token);
            } catch (Exception e) {
                Slog.w(TAG, "Exception thrown when requesting thumbnail", e);
                sendPendingThumbnail(null, token, null, null, true);
            }
        }

        // Stop any activities that are scheduled to do so but have been
        // waiting for the next one to start.
        for (i=0; i<NS; i++) {
            HistoryRecord r = (HistoryRecord)stops.get(i);
            synchronized (this) {
                if (r.finishing) {
                    finishCurrentActivityLocked(r, FINISH_IMMEDIATELY);
                } else {
                    stopActivityLocked(r);
                }
            }
        }

        // Finish any activities that are scheduled to do so but have been
        // waiting for the next one to start.
        for (i=0; i<NF; i++) {
            HistoryRecord r = (HistoryRecord)finishes.get(i);
            synchronized (this) {
                destroyActivityLocked(r, true);
            }
        }

        // Report back to any thumbnail receivers.
        for (i=0; i<NT; i++) {
            HistoryRecord r = (HistoryRecord)thumbnails.get(i);
            sendPendingThumbnail(r, null, null, null, true);
        }

        if (booting) {
            finishBooting();
        }

        trimApplications();
        //dump();
        //mWindowManager.dump();

        if (enableScreen) {
            enableScreenAfterBoot();
        }
    }

    final void finishBooting() {
        IntentFilter pkgFilter = new IntentFilter();
        pkgFilter.addAction(Intent.ACTION_QUERY_PACKAGE_RESTART);
        pkgFilter.addDataScheme("package");
        mContext.registerReceiver(new BroadcastReceiver() {
            @Override
            public void onReceive(Context context, Intent intent) {
                String[] pkgs = intent.getStringArrayExtra(Intent.EXTRA_PACKAGES);
                if (pkgs != null) {
                    for (String pkg : pkgs) {
                        synchronized (ActivityManagerService.this) {
                          if (forceStopPackageLocked(pkg, -1, false, false, false)) {
                              setResultCode(Activity.RESULT_OK);
                              return;
                          }
                       }
                    }
                }
            }
        }, pkgFilter);
        
        synchronized (this) {
            // Ensure that any processes we had put on hold are now started
            // up.
            final int NP = mProcessesOnHold.size();
            if (NP > 0) {
                ArrayList<ProcessRecord> procs =
                    new ArrayList<ProcessRecord>(mProcessesOnHold);
                for (int ip=0; ip<NP; ip++) {
                    this.startProcessLocked(procs.get(ip), "on-hold", null);
                }
            }
            
            if (mFactoryTest != SystemServer.FACTORY_TEST_LOW_LEVEL) {
                // Tell anyone interested that we are done booting!
                broadcastIntentLocked(null, null,
                        new Intent(Intent.ACTION_BOOT_COMPLETED, null),
                        null, null, 0, null, null,
                        android.Manifest.permission.RECEIVE_BOOT_COMPLETED,
                        false, false, MY_PID, Process.SYSTEM_UID);
            }
        }
    }
    
    final void ensureBootCompleted() {
        boolean booting;
        boolean enableScreen;
        synchronized (this) {
            booting = mBooting;
            mBooting = false;
            enableScreen = !mBooted;
            mBooted = true;
        }
        
        if (booting) {
            finishBooting();
        }

        if (enableScreen) {
            enableScreenAfterBoot();
        }
    }
    
    public final void activityPaused(IBinder token, Bundle icicle) {
        // Refuse possible leaked file descriptors
        if (icicle != null && icicle.hasFileDescriptors()) {
            throw new IllegalArgumentException("File descriptors passed in Bundle");
        }

        final long origId = Binder.clearCallingIdentity();
        activityPaused(token, icicle, false);
        Binder.restoreCallingIdentity(origId);
    }

    final void activityPaused(IBinder token, Bundle icicle, boolean timeout) {
        if (DEBUG_PAUSE) Slog.v(
            TAG, "Activity paused: token=" + token + ", icicle=" + icicle
            + ", timeout=" + timeout);

        HistoryRecord r = null;

        synchronized (this) {
            int index = indexOfTokenLocked(token);
            if (index >= 0) {
                r = (HistoryRecord)mHistory.get(index);
                if (!timeout) {
                    r.icicle = icicle;
                    r.haveState = true;
                }
                mHandler.removeMessages(PAUSE_TIMEOUT_MSG, r);
                if (mPausingActivity == r) {
                    r.state = ActivityState.PAUSED;
                    completePauseLocked();
                } else {
                	EventLog.writeEvent(EventLogTags.AM_FAILED_TO_PAUSE,
                	        System.identityHashCode(r), r.shortComponentName, 
                			mPausingActivity != null
                			    ? mPausingActivity.shortComponentName : "(none)");
                }
            }
        }
    }

    public final void activityStopped(IBinder token, Bitmap thumbnail,
            CharSequence description) {
        if (localLOGV) Slog.v(
            TAG, "Activity stopped: token=" + token);

        HistoryRecord r = null;

        final long origId = Binder.clearCallingIdentity();

        synchronized (this) {
            int index = indexOfTokenLocked(token);
            if (index >= 0) {
                r = (HistoryRecord)mHistory.get(index);
                r.thumbnail = thumbnail;
                r.description = description;
                r.stopped = true;
                r.state = ActivityState.STOPPED;
                if (!r.finishing) {
                    if (r.configDestroy) {
                        destroyActivityLocked(r, true);
                        resumeTopActivityLocked(null);
                    }
                }
            }
        }

        if (r != null) {
            sendPendingThumbnail(r, null, null, null, false);
        }

        trimApplications();

        Binder.restoreCallingIdentity(origId);
    }

    public final void activityDestroyed(IBinder token) {
        if (DEBUG_SWITCH) Slog.v(TAG, "ACTIVITY DESTROYED: " + token);
        synchronized (this) {
            mHandler.removeMessages(DESTROY_TIMEOUT_MSG, token);
            
            int index = indexOfTokenLocked(token);
            if (index >= 0) {
                HistoryRecord r = (HistoryRecord)mHistory.get(index);
                if (r.state == ActivityState.DESTROYING) {
                    final long origId = Binder.clearCallingIdentity();
                    removeActivityFromHistoryLocked(r);
                    Binder.restoreCallingIdentity(origId);
                }
            }
        }
    }
    
    public String getCallingPackage(IBinder token) {
        synchronized (this) {
            HistoryRecord r = getCallingRecordLocked(token);
            return r != null && r.app != null ? r.info.packageName : null;
        }
    }

    public ComponentName getCallingActivity(IBinder token) {
        synchronized (this) {
            HistoryRecord r = getCallingRecordLocked(token);
            return r != null ? r.intent.getComponent() : null;
        }
    }

    private HistoryRecord getCallingRecordLocked(IBinder token) {
        int index = indexOfTokenLocked(token);
        if (index >= 0) {
            HistoryRecord r = (HistoryRecord)mHistory.get(index);
            if (r != null) {
                return r.resultTo;
            }
        }
        return null;
    }

    public ComponentName getActivityClassForToken(IBinder token) {
        synchronized(this) {
            int index = indexOfTokenLocked(token);
            if (index >= 0) {
                HistoryRecord r = (HistoryRecord)mHistory.get(index);
                return r.intent.getComponent();
            }
            return null;
        }
    }

    public String getPackageForToken(IBinder token) {
        synchronized(this) {
            int index = indexOfTokenLocked(token);
            if (index >= 0) {
                HistoryRecord r = (HistoryRecord)mHistory.get(index);
                return r.packageName;
            }
            return null;
        }
    }

    public IIntentSender getIntentSender(int type,
            String packageName, IBinder token, String resultWho,
            int requestCode, Intent intent, String resolvedType, int flags) {
        // Refuse possible leaked file descriptors
        if (intent != null && intent.hasFileDescriptors() == true) {
            throw new IllegalArgumentException("File descriptors passed in Intent");
        }

        if (type == INTENT_SENDER_BROADCAST) {
            if ((intent.getFlags()&Intent.FLAG_RECEIVER_BOOT_UPGRADE) != 0) {
                throw new IllegalArgumentException(
                        "Can't use FLAG_RECEIVER_BOOT_UPGRADE here");
            }
        }
        
        synchronized(this) {
            int callingUid = Binder.getCallingUid();
            try {
                if (callingUid != 0 && callingUid != Process.SYSTEM_UID &&
                        Process.supportsProcesses()) {
                    int uid = ActivityThread.getPackageManager()
                            .getPackageUid(packageName);
                    if (uid != Binder.getCallingUid()) {
                        String msg = "Permission Denial: getIntentSender() from pid="
                            + Binder.getCallingPid()
                            + ", uid=" + Binder.getCallingUid()
                            + ", (need uid=" + uid + ")"
                            + " is not allowed to send as package " + packageName;
                        Slog.w(TAG, msg);
                        throw new SecurityException(msg);
                    }
                }
            } catch (RemoteException e) {
                throw new SecurityException(e);
            }
            HistoryRecord activity = null;
            if (type == INTENT_SENDER_ACTIVITY_RESULT) {
                int index = indexOfTokenLocked(token);
                if (index < 0) {
                    return null;
                }
                activity = (HistoryRecord)mHistory.get(index);
                if (activity.finishing) {
                    return null;
                }
            }

            final boolean noCreate = (flags&PendingIntent.FLAG_NO_CREATE) != 0;
            final boolean cancelCurrent = (flags&PendingIntent.FLAG_CANCEL_CURRENT) != 0;
            final boolean updateCurrent = (flags&PendingIntent.FLAG_UPDATE_CURRENT) != 0;
            flags &= ~(PendingIntent.FLAG_NO_CREATE|PendingIntent.FLAG_CANCEL_CURRENT
                    |PendingIntent.FLAG_UPDATE_CURRENT);

            PendingIntentRecord.Key key = new PendingIntentRecord.Key(
                    type, packageName, activity, resultWho,
                    requestCode, intent, resolvedType, flags);
            WeakReference<PendingIntentRecord> ref;
            ref = mIntentSenderRecords.get(key);
            PendingIntentRecord rec = ref != null ? ref.get() : null;
            if (rec != null) {
                if (!cancelCurrent) {
                    if (updateCurrent) {
                        rec.key.requestIntent.replaceExtras(intent);
                    }
                    return rec;
                }
                rec.canceled = true;
                mIntentSenderRecords.remove(key);
            }
            if (noCreate) {
                return rec;
            }
            rec = new PendingIntentRecord(this, key, callingUid);
            mIntentSenderRecords.put(key, rec.ref);
            if (type == INTENT_SENDER_ACTIVITY_RESULT) {
                if (activity.pendingResults == null) {
                    activity.pendingResults
                            = new HashSet<WeakReference();
                }
                activity.pendingResults.add(rec.ref);
            }
            return rec;
        }
    }

    public void cancelIntentSender(IIntentSender sender) {
        if (!(sender instanceof PendingIntentRecord)) {
            return;
        }
        synchronized(this) {
            PendingIntentRecord rec = (PendingIntentRecord)sender;
            try {
                int uid = ActivityThread.getPackageManager()
                        .getPackageUid(rec.key.packageName);
                if (uid != Binder.getCallingUid()) {
                    String msg = "Permission Denial: cancelIntentSender() from pid="
                        + Binder.getCallingPid()
                        + ", uid=" + Binder.getCallingUid()
                        + " is not allowed to cancel packges "
                        + rec.key.packageName;
                    Slog.w(TAG, msg);
                    throw new SecurityException(msg);
                }
            } catch (RemoteException e) {
                throw new SecurityException(e);
            }
            cancelIntentSenderLocked(rec, true);
        }
    }

    void cancelIntentSenderLocked(PendingIntentRecord rec, boolean cleanActivity) {
        rec.canceled = true;
        mIntentSenderRecords.remove(rec.key);
        if (cleanActivity && rec.key.activity != null) {
            rec.key.activity.pendingResults.remove(rec.ref);
        }
    }

    public String getPackageForIntentSender(IIntentSender pendingResult) {
        if (!(pendingResult instanceof PendingIntentRecord)) {
            return null;
        }
        try {
            PendingIntentRecord res = (PendingIntentRecord)pendingResult;
            return res.key.packageName;
        } catch (ClassCastException e) {
        }
        return null;
    }

    public void setProcessLimit(int max) {
        enforceCallingPermission(android.Manifest.permission.SET_PROCESS_LIMIT,
                "setProcessLimit()");
        mProcessLimit = max;
    }

    public int getProcessLimit() {
        return mProcessLimit;
    }

    void foregroundTokenDied(ForegroundToken token) {
        synchronized (ActivityManagerService.this) {
            synchronized (mPidsSelfLocked) {
                ForegroundToken cur
                    = mForegroundProcesses.get(token.pid);
                if (cur != token) {
                    return;
                }
                mForegroundProcesses.remove(token.pid);
                ProcessRecord pr = mPidsSelfLocked.get(token.pid);
                if (pr == null) {
                    return;
                }
                pr.forcingToForeground = null;
                pr.foregroundServices = false;
            }
            updateOomAdjLocked();
        }
    }
    
    public void setProcessForeground(IBinder token, int pid, boolean isForeground) {
        enforceCallingPermission(android.Manifest.permission.SET_PROCESS_LIMIT,
                "setProcessForeground()");
        synchronized(this) {
            boolean changed = false;
            
            synchronized (mPidsSelfLocked) {
                ProcessRecord pr = mPidsSelfLocked.get(pid);
                if (pr == null) {
                    Slog.w(TAG, "setProcessForeground called on unknown pid: " + pid);
                    return;
                }
                ForegroundToken oldToken = mForegroundProcesses.get(pid);
                if (oldToken != null) {
                    oldToken.token.unlinkToDeath(oldToken, 0);
                    mForegroundProcesses.remove(pid);
                    pr.forcingToForeground = null;
                    changed = true;
                }
                if (isForeground && token != null) {
                    ForegroundToken newToken = new ForegroundToken() {
                        public void binderDied() {
                            foregroundTokenDied(this);
                        }
                    };
                    newToken.pid = pid;
                    newToken.token = token;
                    try {
                        token.linkToDeath(newToken, 0);
                        mForegroundProcesses.put(pid, newToken);
                        pr.forcingToForeground = token;
                        changed = true;
                    } catch (RemoteException e) {
                        // If the process died while doing this, we will later
                        // do the cleanup with the process death link.
                    }
                }
            }
            
            if (changed) {
                updateOomAdjLocked();
            }
        }
    }
    
    // =========================================================
    // PERMISSIONS
    // =========================================================

    static class PermissionController extends IPermissionController.Stub {
        ActivityManagerService mActivityManagerService;
        PermissionController(ActivityManagerService activityManagerService) {
            mActivityManagerService = activityManagerService;
        }

        public boolean checkPermission(String permission, int pid, int uid) {
            return mActivityManagerService.checkPermission(permission, pid,
                    uid) == PackageManager.PERMISSION_GRANTED;
        }
    }

    /**
     * This can be called with or without the global lock held.
     */
    int checkComponentPermission(String permission, int pid, int uid,
            int reqUid) {
        // We might be performing an operation on behalf of an indirect binder
        // invocation, e.g. via {@link #openContentUri}.  Check and adjust the
        // client identity accordingly before proceeding.
        Identity tlsIdentity = sCallerIdentity.get();
        if (tlsIdentity != null) {
            Slog.d(TAG, "checkComponentPermission() adjusting {pid,uid} to {"
                    + tlsIdentity.pid + "," + tlsIdentity.uid + "}");
            uid = tlsIdentity.uid;
            pid = tlsIdentity.pid;
        }

        // Root, system server and our own process get to do everything.
        if (uid == 0 || uid == Process.SYSTEM_UID || pid == MY_PID ||
            !Process.supportsProcesses()) {
            return PackageManager.PERMISSION_GRANTED;
        }
        // If the target requires a specific UID, always fail for others.
        if (reqUid >= 0 && uid != reqUid) {
            Slog.w(TAG, "Permission denied: checkComponentPermission() reqUid=" + reqUid);
            return PackageManager.PERMISSION_DENIED;
        }
        if (permission == null) {
            return PackageManager.PERMISSION_GRANTED;
        }
        try {
            return ActivityThread.getPackageManager()
                    .checkUidPermission(permission, uid);
        } catch (RemoteException e) {
            // Should never happen, but if it does... deny!
            Slog.e(TAG, "PackageManager is dead?!?", e);
        }
        return PackageManager.PERMISSION_DENIED;
    }

    /**
     * As the only public entry point for permissions checking, this method
     * can enforce the semantic that requesting a check on a null global
     * permission is automatically denied.  (Internally a null permission
     * string is used when calling {@link #checkComponentPermission} in cases
     * when only uid-based security is needed.)
     * 
     * This can be called with or without the global lock held.
     */
    public int checkPermission(String permission, int pid, int uid) {
        if (permission == null) {
            return PackageManager.PERMISSION_DENIED;
        }
        return checkComponentPermission(permission, pid, uid, -1);
    }

    /**
     * Binder IPC calls go through the public entry point.
     * This can be called with or without the global lock held.
     */
    int checkCallingPermission(String permission) {
        return checkPermission(permission,
                Binder.getCallingPid(),
                Binder.getCallingUid());
    }

    /**
     * This can be called with or without the global lock held.
     */
    void enforceCallingPermission(String permission, String func) {
        if (checkCallingPermission(permission)
                == PackageManager.PERMISSION_GRANTED) {
            return;
        }

        String msg = "Permission Denial: " + func + " from pid="
                + Binder.getCallingPid()
                + ", uid=" + Binder.getCallingUid()
                + " requires " + permission;
        Slog.w(TAG, msg);
        throw new SecurityException(msg);
    }

    private final boolean checkHoldingPermissionsLocked(IPackageManager pm,
            ProviderInfo pi, int uid, int modeFlags) {
        try {
            if ((modeFlags&Intent.FLAG_GRANT_READ_URI_PERMISSION) != 0) {
                if ((pi.readPermission != null) &&
                        (pm.checkUidPermission(pi.readPermission, uid)
                                != PackageManager.PERMISSION_GRANTED)) {
                    return false;
                }
            }
            if ((modeFlags&Intent.FLAG_GRANT_WRITE_URI_PERMISSION) != 0) {
                if ((pi.writePermission != null) &&
                        (pm.checkUidPermission(pi.writePermission, uid)
                                != PackageManager.PERMISSION_GRANTED)) {
                    return false;
                }
            }
            return true;
        } catch (RemoteException e) {
            return false;
        }
    }

    private final boolean checkUriPermissionLocked(Uri uri, int uid,
            int modeFlags) {
        // Root gets to do everything.
        if (uid == 0 || !Process.supportsProcesses()) {
            return true;
        }
        HashMap<Uri, UriPermission> perms = mGrantedUriPermissions.get(uid);
        if (perms == null) return false;
        UriPermission perm = perms.get(uri);
        if (perm == null) return false;
        return (modeFlags&perm.modeFlags) == modeFlags;
    }

    public int checkUriPermission(Uri uri, int pid, int uid, int modeFlags) {
        // Another redirected-binder-call permissions check as in
        // {@link checkComponentPermission}.
        Identity tlsIdentity = sCallerIdentity.get();
        if (tlsIdentity != null) {
            uid = tlsIdentity.uid;
            pid = tlsIdentity.pid;
        }

        // Our own process gets to do everything.
        if (pid == MY_PID) {
            return PackageManager.PERMISSION_GRANTED;
        }
        synchronized(this) {
            return checkUriPermissionLocked(uri, uid, modeFlags)
                    ? PackageManager.PERMISSION_GRANTED
                    : PackageManager.PERMISSION_DENIED;
        }
    }

    private void grantUriPermissionLocked(int callingUid,
            String targetPkg, Uri uri, int modeFlags, HistoryRecord activity) {
        modeFlags &= (Intent.FLAG_GRANT_READ_URI_PERMISSION
                | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
        if (modeFlags == 0) {
            return;
        }

        if (DEBUG_URI_PERMISSION) Slog.v(TAG, 
                "Requested grant " + targetPkg + " permission to " + uri);
        
        final IPackageManager pm = ActivityThread.getPackageManager();

        // If this is not a content: uri, we can't do anything with it.
        if (!ContentResolver.SCHEME_CONTENT.equals(uri.getScheme())) {
            if (DEBUG_URI_PERMISSION) Slog.v(TAG, 
                    "Can't grant URI permission for non-content URI: " + uri);
            return;
        }

        String name = uri.getAuthority();
        ProviderInfo pi = null;
        ContentProviderRecord cpr
                = (ContentProviderRecord)mProvidersByName.get(name);
        if (cpr != null) {
            pi = cpr.info;
        } else {
            try {
                pi = pm.resolveContentProvider(name,
                        PackageManager.GET_URI_PERMISSION_PATTERNS);
            } catch (RemoteException ex) {
            }
        }
        if (pi == null) {
            Slog.w(TAG, "No content provider found for: " + name);
            return;
        }

        int targetUid;
        try {
            targetUid = pm.getPackageUid(targetPkg);
            if (targetUid < 0) {
                if (DEBUG_URI_PERMISSION) Slog.v(TAG, 
                        "Can't grant URI permission no uid for: " + targetPkg);
                return;
            }
        } catch (RemoteException ex) {
            return;
        }

        // First...  does the target actually need this permission?
        if (checkHoldingPermissionsLocked(pm, pi, targetUid, modeFlags)) {
            // No need to grant the target this permission.
            if (DEBUG_URI_PERMISSION) Slog.v(TAG, 
                    "Target " + targetPkg + " already has full permission to " + uri);
            return;
        }

        // Second...  is the provider allowing granting of URI permissions?
        if (!pi.grantUriPermissions) {
            throw new SecurityException("Provider " + pi.packageName
                    + "/" + pi.name
                    + " does not allow granting of Uri permissions (uri "
                    + uri + ")");
        }
        if (pi.uriPermissionPatterns != null) {
            final int N = pi.uriPermissionPatterns.length;
            boolean allowed = false;
            for (int i=0; i<N; i++) {
                if (pi.uriPermissionPatterns[i] != null
                        && pi.uriPermissionPatterns[i].match(uri.getPath())) {
                    allowed = true;
                    break;
                }
            }
            if (!allowed) {
                throw new SecurityException("Provider " + pi.packageName
                        + "/" + pi.name
                        + " does not allow granting of permission to path of Uri "
                        + uri);
            }
        }

        // Third...  does the caller itself have permission to access
        // this uri?
        if (!checkHoldingPermissionsLocked(pm, pi, callingUid, modeFlags)) {
            if (!checkUriPermissionLocked(uri, callingUid, modeFlags)) {
                throw new SecurityException("Uid " + callingUid
                        + " does not have permission to uri " + uri);
            }
        }

        // Okay!  So here we are: the caller has the assumed permission
        // to the uri, and the target doesn't.  Let's now give this to
        // the target.

        if (DEBUG_URI_PERMISSION) Slog.v(TAG, 
                "Granting " + targetPkg + " permission to " + uri);
        
        HashMap<Uri, UriPermission> targetUris
                = mGrantedUriPermissions.get(targetUid);
        if (targetUris == null) {
            targetUris = new HashMap<Uri, UriPermission>();
            mGrantedUriPermissions.put(targetUid, targetUris);
        }

        UriPermission perm = targetUris.get(uri);
        if (perm == null) {
            perm = new UriPermission(targetUid, uri);
            targetUris.put(uri, perm);

        }
        perm.modeFlags |= modeFlags;
        if (activity == null) {
            perm.globalModeFlags |= modeFlags;
        } else if ((modeFlags&Intent.FLAG_GRANT_READ_URI_PERMISSION) != 0) {
            perm.readActivities.add(activity);
            if (activity.readUriPermissions == null) {
                activity.readUriPermissions = new HashSet<UriPermission>();
            }
            activity.readUriPermissions.add(perm);
        } else if ((modeFlags&Intent.FLAG_GRANT_WRITE_URI_PERMISSION) != 0) {
            perm.writeActivities.add(activity);
            if (activity.writeUriPermissions == null) {
                activity.writeUriPermissions = new HashSet<UriPermission>();
            }
            activity.writeUriPermissions.add(perm);
        }
    }

    private void grantUriPermissionFromIntentLocked(int callingUid,
            String targetPkg, Intent intent, HistoryRecord activity) {
        if (intent == null) {
            return;
        }
        Uri data = intent.getData();
        if (data == null) {
            return;
        }
        grantUriPermissionLocked(callingUid, targetPkg, data,
                intent.getFlags(), activity);
    }

    public void grantUriPermission(IApplicationThread caller, String targetPkg,
            Uri uri, int modeFlags) {
        synchronized(this) {
            final ProcessRecord r = getRecordForAppLocked(caller);
            if (r == null) {
                throw new SecurityException("Unable to find app for caller "
                        + caller
                        + " when granting permission to uri " + uri);
            }
            if (targetPkg == null) {
                Slog.w(TAG, "grantUriPermission: null target");
                return;
            }
            if (uri == null) {
                Slog.w(TAG, "grantUriPermission: null uri");
                return;
            }

            grantUriPermissionLocked(r.info.uid, targetPkg, uri, modeFlags,
                    null);
        }
    }

    private void removeUriPermissionIfNeededLocked(UriPermission perm) {
        if ((perm.modeFlags&(Intent.FLAG_GRANT_READ_URI_PERMISSION
                |Intent.FLAG_GRANT_WRITE_URI_PERMISSION)) == 0) {
            HashMap<Uri, UriPermission> perms
                    = mGrantedUriPermissions.get(perm.uid);
            if (perms != null) {
                if (DEBUG_URI_PERMISSION) Slog.v(TAG, 
                        "Removing " + perm.uid + " permission to " + perm.uri);
                perms.remove(perm.uri);
                if (perms.size() == 0) {
                    mGrantedUriPermissions.remove(perm.uid);
                }
            }
        }
    }

    private void removeActivityUriPermissionsLocked(HistoryRecord activity) {
        if (activity.readUriPermissions != null) {
            for (UriPermission perm : activity.readUriPermissions) {
                perm.readActivities.remove(activity);
                if (perm.readActivities.size() == 0 && (perm.globalModeFlags
                        &Intent.FLAG_GRANT_READ_URI_PERMISSION) == 0) {
                    perm.modeFlags &= ~Intent.FLAG_GRANT_READ_URI_PERMISSION;
                    removeUriPermissionIfNeededLocked(perm);
                }
            }
        }
        if (activity.writeUriPermissions != null) {
            for (UriPermission perm : activity.writeUriPermissions) {
                perm.writeActivities.remove(activity);
                if (perm.writeActivities.size() == 0 && (perm.globalModeFlags
                        &Intent.FLAG_GRANT_WRITE_URI_PERMISSION) == 0) {
                    perm.modeFlags &= ~Intent.FLAG_GRANT_WRITE_URI_PERMISSION;
                    removeUriPermissionIfNeededLocked(perm);
                }
            }
        }
    }

    private void revokeUriPermissionLocked(int callingUid, Uri uri,
            int modeFlags) {
        modeFlags &= (Intent.FLAG_GRANT_READ_URI_PERMISSION
                | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
        if (modeFlags == 0) {
            return;
        }

        if (DEBUG_URI_PERMISSION) Slog.v(TAG, 
                "Revoking all granted permissions to " + uri);
        
        final IPackageManager pm = ActivityThread.getPackageManager();

        final String authority = uri.getAuthority();
        ProviderInfo pi = null;
        ContentProviderRecord cpr
                = (ContentProviderRecord)mProvidersByName.get(authority);
        if (cpr != null) {
            pi = cpr.info;
        } else {
            try {
                pi = pm.resolveContentProvider(authority,
                        PackageManager.GET_URI_PERMISSION_PATTERNS);
            } catch (RemoteException ex) {
            }
        }
        if (pi == null) {
            Slog.w(TAG, "No content provider found for: " + authority);
            return;
        }

        // Does the caller have this permission on the URI?
        if (!checkHoldingPermissionsLocked(pm, pi, callingUid, modeFlags)) {
            // Right now, if you are not the original owner of the permission,
            // you are not allowed to revoke it.
            //if (!checkUriPermissionLocked(uri, callingUid, modeFlags)) {
                throw new SecurityException("Uid " + callingUid
                        + " does not have permission to uri " + uri);
            //}
        }

        // Go through all of the permissions and remove any that match.
        final List<String> SEGMENTS = uri.getPathSegments();
        if (SEGMENTS != null) {
            final int NS = SEGMENTS.size();
            int N = mGrantedUriPermissions.size();
            for (int i=0; i<N; i++) {
                HashMap<Uri, UriPermission> perms
                        = mGrantedUriPermissions.valueAt(i);
                Iterator<UriPermission> it = perms.values().iterator();
            toploop:
                while (it.hasNext()) {
                    UriPermission perm = it.next();
                    Uri targetUri = perm.uri;
                    if (!authority.equals(targetUri.getAuthority())) {
                        continue;
                    }
                    List<String> targetSegments = targetUri.getPathSegments();
                    if (targetSegments == null) {
                        continue;
                    }
                    if (targetSegments.size() < NS) {
                        continue;
                    }
                    for (int j=0; j<NS; j++) {
                        if (!SEGMENTS.get(j).equals(targetSegments.get(j))) {
                            continue toploop;
                        }
                    }
                    if (DEBUG_URI_PERMISSION) Slog.v(TAG, 
                            "Revoking " + perm.uid + " permission to " + perm.uri);
                    perm.clearModes(modeFlags);
                    if (perm.modeFlags == 0) {
                        it.remove();
                    }
                }
                if (perms.size() == 0) {
                    mGrantedUriPermissions.remove(
                            mGrantedUriPermissions.keyAt(i));
                    N--;
                    i--;
                }
            }
        }
    }

    public void revokeUriPermission(IApplicationThread caller, Uri uri,
            int modeFlags) {
        synchronized(this) {
            final ProcessRecord r = getRecordForAppLocked(caller);
            if (r == null) {
                throw new SecurityException("Unable to find app for caller "
                        + caller
                        + " when revoking permission to uri " + uri);
            }
            if (uri == null) {
                Slog.w(TAG, "revokeUriPermission: null uri");
                return;
            }

            modeFlags &= (Intent.FLAG_GRANT_READ_URI_PERMISSION
                    | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
            if (modeFlags == 0) {
                return;
            }

            final IPackageManager pm = ActivityThread.getPackageManager();

            final String authority = uri.getAuthority();
            ProviderInfo pi = null;
            ContentProviderRecord cpr
                    = (ContentProviderRecord)mProvidersByName.get(authority);
            if (cpr != null) {
                pi = cpr.info;
            } else {
                try {
                    pi = pm.resolveContentProvider(authority,
                            PackageManager.GET_URI_PERMISSION_PATTERNS);
                } catch (RemoteException ex) {
                }
            }
            if (pi == null) {
                Slog.w(TAG, "No content provider found for: " + authority);
                return;
            }

            revokeUriPermissionLocked(r.info.uid, uri, modeFlags);
        }
    }

    public void showWaitingForDebugger(IApplicationThread who, boolean waiting) {
        synchronized (this) {
            ProcessRecord app =
                who != null ? getRecordForAppLocked(who) : null;
            if (app == null) return;

            Message msg = Message.obtain();
            msg.what = WAIT_FOR_DEBUGGER_MSG;
            msg.obj = app;
            msg.arg1 = waiting ? 1 : 0;
            mHandler.sendMessage(msg);
        }
    }

    public void getMemoryInfo(ActivityManager.MemoryInfo outInfo) {
        outInfo.availMem = Process.getFreeMemory();
        outInfo.threshold = HOME_APP_MEM;
        outInfo.lowMemory = outInfo.availMem <
                (HOME_APP_MEM + ((HIDDEN_APP_MEM-HOME_APP_MEM)/2));
    }
    
    // =========================================================
    // TASK MANAGEMENT
    // =========================================================

    public List getTasks(int maxNum, int flags,
                         IThumbnailReceiver receiver) {
        ArrayList list = new ArrayList();

        PendingThumbnailsRecord pending = null;
        IApplicationThread topThumbnail = null;
        HistoryRecord topRecord = null;

        synchronized(this) {
            if (localLOGV) Slog.v(
                TAG, "getTasks: max=" + maxNum + ", flags=" + flags
                + ", receiver=" + receiver);

            if (checkCallingPermission(android.Manifest.permission.GET_TASKS)
                    != PackageManager.PERMISSION_GRANTED) {
                if (receiver != null) {
                    // If the caller wants to wait for pending thumbnails,
                    // it ain't gonna get them.
                    try {
                        receiver.finished();
                    } catch (RemoteException ex) {
                    }
                }
                String msg = "Permission Denial: getTasks() from pid="
                        + Binder.getCallingPid()
                        + ", uid=" + Binder.getCallingUid()
                        + " requires " + android.Manifest.permission.GET_TASKS;
                Slog.w(TAG, msg);
                throw new SecurityException(msg);
            }

            int pos = mHistory.size()-1;
            HistoryRecord next =
                pos >= 0 ? (HistoryRecord)mHistory.get(pos) : null;
            HistoryRecord top = null;
            CharSequence topDescription = null;
            TaskRecord curTask = null;
            int numActivities = 0;
            int numRunning = 0;
            while (pos >= 0 && maxNum > 0) {
                final HistoryRecord r = next;
                pos--;
                next = pos >= 0 ? (HistoryRecord)mHistory.get(pos) : null;

                // Initialize state for next task if needed.
                if (top == null ||
                        (top.state == ActivityState.INITIALIZING
                            && top.task == r.task)) {
                    top = r;
                    topDescription = r.description;
                    curTask = r.task;
                    numActivities = numRunning = 0;
                }

                // Add 'r' into the current task.
                numActivities++;
                if (r.app != null && r.app.thread != null) {
                    numRunning++;
                }
                if (topDescription == null) {
                    topDescription = r.description;
                }

                if (localLOGV) Slog.v(
                    TAG, r.intent.getComponent().flattenToShortString()
                    + ": task=" + r.task);

                // If the next one is a different task, generate a new
                // TaskInfo entry for what we have.
                if (next == null || next.task != curTask) {
                    ActivityManager.RunningTaskInfo ci
                            = new ActivityManager.RunningTaskInfo();
                    ci.id = curTask.taskId;
                    ci.baseActivity = r.intent.getComponent();
                    ci.topActivity = top.intent.getComponent();
                    ci.thumbnail = top.thumbnail;
                    ci.description = topDescription;
                    ci.numActivities = numActivities;
                    ci.numRunning = numRunning;
                    //System.out.println(
                    //    "#" + maxNum + ": " + " descr=" + ci.description);
                    if (ci.thumbnail == null && receiver != null) {
                        if (localLOGV) Slog.v(
                            TAG, "State=" + top.state + "Idle=" + top.idle
                            + " app=" + top.app
                            + " thr=" + (top.app != null ? top.app.thread : null));
                        if (top.state == ActivityState.RESUMED
                                || top.state == ActivityState.PAUSING) {
                            if (top.idle && top.app != null
                                && top.app.thread != null) {
                                topRecord = top;
                                topThumbnail = top.app.thread;
                            } else {
                                top.thumbnailNeeded = true;
                            }
                        }
                        if (pending == null) {
                            pending = new PendingThumbnailsRecord(receiver);
                        }
                        pending.pendingRecords.add(top);
                    }
                    list.add(ci);
                    maxNum--;
                    top = null;
                }
            }

            if (pending != null) {
                mPendingThumbnails.add(pending);
            }
        }

        if (localLOGV) Slog.v(TAG, "We have pending thumbnails: " + pending);

        if (topThumbnail != null) {
            if (localLOGV) Slog.v(TAG, "Requesting top thumbnail");
            try {
                topThumbnail.requestThumbnail(topRecord);
            } catch (Exception e) {
                Slog.w(TAG, "Exception thrown when requesting thumbnail", e);
                sendPendingThumbnail(null, topRecord, null, null, true);
            }
        }

        if (pending == null && receiver != null) {
            // In this case all thumbnails were available and the client
            // is being asked to be told when the remaining ones come in...
            // which is unusually, since the top-most currently running
            // activity should never have a canned thumbnail!  Oh well.
            try {
                receiver.finished();
            } catch (RemoteException ex) {
            }
        }

        return list;
    }

    public List<ActivityManager.RecentTaskInfo> getRecentTasks(int maxNum,
            int flags) {
        synchronized (this) {
            enforceCallingPermission(android.Manifest.permission.GET_TASKS,
                    "getRecentTasks()");

            IPackageManager pm = ActivityThread.getPackageManager();
            
            final int N = mRecentTasks.size();
            ArrayList<ActivityManager.RecentTaskInfo> res
                    = new ArrayList<ActivityManager.RecentTaskInfo>(
                            maxNum < N ? maxNum : N);
            for (int i=0; i<N && maxNum > 0; i++) {
                TaskRecord tr = mRecentTasks.get(i);
                if (((flags&ActivityManager.RECENT_WITH_EXCLUDED) != 0)
                        || (tr.intent == null)
                        || ((tr.intent.getFlags()
                                &Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS) == 0)) {
                    ActivityManager.RecentTaskInfo rti
                            = new ActivityManager.RecentTaskInfo();
                    rti.id = tr.numActivities > 0 ? tr.taskId : -1;
                    rti.baseIntent = new Intent(
                            tr.intent != null ? tr.intent : tr.affinityIntent);
                    rti.origActivity = tr.origActivity;
                    
                    if ((flags&ActivityManager.RECENT_IGNORE_UNAVAILABLE) != 0) {
                        // Check whether this activity is currently available.
                        try {
                            if (rti.origActivity != null) {
                                if (pm.getActivityInfo(rti.origActivity, 0) == null) {
                                    continue;
                                }
                            } else if (rti.baseIntent != null) {
                                if (pm.queryIntentActivities(rti.baseIntent,
                                        null, 0) == null) {
                                    continue;
                                }
                            }
                        } catch (RemoteException e) {
                            // Will never happen.
                        }
                    }
                    
                    res.add(rti);
                    maxNum--;
                }
            }
            return res;
        }
    }

    private final int findAffinityTaskTopLocked(int startIndex, String affinity) {
        int j;
        TaskRecord startTask = ((HistoryRecord)mHistory.get(startIndex)).task; 
        TaskRecord jt = startTask;
        
        // First look backwards
        for (j=startIndex-1; j>=0; j--) {
            HistoryRecord r = (HistoryRecord)mHistory.get(j);
            if (r.task != jt) {
                jt = r.task;
                if (affinity.equals(jt.affinity)) {
                    return j;
                }
            }
        }
        
        // Now look forwards
        final int N = mHistory.size();
        jt = startTask;
        for (j=startIndex+1; j<N; j++) {
            HistoryRecord r = (HistoryRecord)mHistory.get(j);
            if (r.task != jt) {
                if (affinity.equals(jt.affinity)) {
                    return j;
                }
                jt = r.task;
            }
        }
        
        // Might it be at the top?
        if (affinity.equals(((HistoryRecord)mHistory.get(N-1)).task.affinity)) {
            return N-1;
        }
        
        return -1;
    }
    
    /**
     * Perform a reset of the given task, if needed as part of launching it.
     * Returns the new HistoryRecord at the top of the task.
     */
    private final HistoryRecord resetTaskIfNeededLocked(HistoryRecord taskTop,
            HistoryRecord newActivity) {
        boolean forceReset = (newActivity.info.flags
                &ActivityInfo.FLAG_CLEAR_TASK_ON_LAUNCH) != 0;
        if (taskTop.task.getInactiveDuration() > ACTIVITY_INACTIVE_RESET_TIME) {
            if ((newActivity.info.flags
                    &ActivityInfo.FLAG_ALWAYS_RETAIN_TASK_STATE) == 0) {
                forceReset = true;
            }
        }
        
        final TaskRecord task = taskTop.task;
        
        // We are going to move through the history list so that we can look
        // at each activity 'target' with 'below' either the interesting
        // activity immediately below it in the stack or null.
        HistoryRecord target = null;
        int targetI = 0;
        int taskTopI = -1;
        int replyChainEnd = -1;
        int lastReparentPos = -1;
        for (int i=mHistory.size()-1; i>=-1; i--) {
            HistoryRecord below = i >= 0 ? (HistoryRecord)mHistory.get(i) : null;
            
            if (below != null && below.finishing) {
                continue;
            }
            if (target == null) {
                target = below;
                targetI = i;
                // If we were in the middle of a reply chain before this
                // task, it doesn't appear like the root of the chain wants
                // anything interesting, so drop it.
                replyChainEnd = -1;
                continue;
            }
        
            final int flags = target.info.flags;
            
            final boolean finishOnTaskLaunch =
                (flags&ActivityInfo.FLAG_FINISH_ON_TASK_LAUNCH) != 0;
            final boolean allowTaskReparenting =
                (flags&ActivityInfo.FLAG_ALLOW_TASK_REPARENTING) != 0;
            
            if (target.task == task) {
                // We are inside of the task being reset...  we'll either
                // finish this activity, push it out for another task,
                // or leave it as-is.  We only do this
                // for activities that are not the root of the task (since
                // if we finish the root, we may no longer have the task!).
                if (taskTopI < 0) {
                    taskTopI = targetI;
                }
                if (below != null && below.task == task) {
                    final boolean clearWhenTaskReset =
                            (target.intent.getFlags()
                                    &Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET) != 0;
                    if (!finishOnTaskLaunch && !clearWhenTaskReset && target.resultTo != null) {
                        // If this activity is sending a reply to a previous
                        // activity, we can't do anything with it now until
                        // we reach the start of the reply chain.
                        // XXX note that we are assuming the result is always
                        // to the previous activity, which is almost always
                        // the case but we really shouldn't count on.
                        if (replyChainEnd < 0) {
                            replyChainEnd = targetI;
                        }
                    } else if (!finishOnTaskLaunch && !clearWhenTaskReset && allowTaskReparenting
                            && target.taskAffinity != null
                            && !target.taskAffinity.equals(task.affinity)) {
                        // If this activity has an affinity for another
                        // task, then we need to move it out of here.  We will
                        // move it as far out of the way as possible, to the
                        // bottom of the activity stack.  This also keeps it
                        // correctly ordered with any activities we previously
                        // moved.
                        HistoryRecord p = (HistoryRecord)mHistory.get(0);
                        if (target.taskAffinity != null
                                && target.taskAffinity.equals(p.task.affinity)) {
                            // If the activity currently at the bottom has the
                            // same task affinity as the one we are moving,
                            // then merge it into the same task.
                            target.task = p.task;
                            if (DEBUG_TASKS) Slog.v(TAG, "Start pushing activity " + target
                                    + " out to bottom task " + p.task);
                        } else {
                            mCurTask++;
                            if (mCurTask <= 0) {
                                mCurTask = 1;
                            }
                            target.task = new TaskRecord(mCurTask, target.info, null,
                                    (target.info.flags&ActivityInfo.FLAG_CLEAR_TASK_ON_LAUNCH) != 0);
                            target.task.affinityIntent = target.intent;
                            if (DEBUG_TASKS) Slog.v(TAG, "Start pushing activity " + target
                                    + " out to new task " + target.task);
                        }
                        mWindowManager.setAppGroupId(target, task.taskId);
                        if (replyChainEnd < 0) {
                            replyChainEnd = targetI;
                        }
                        int dstPos = 0;
                        for (int srcPos=targetI; srcPos<=replyChainEnd; srcPos++) {
                            p = (HistoryRecord)mHistory.get(srcPos);
                            if (p.finishing) {
                                continue;
                            }
                            if (DEBUG_TASKS) Slog.v(TAG, "Pushing next activity " + p
                                    + " out to target's task " + target.task);
                            task.numActivities--;
                            p.task = target.task;
                            target.task.numActivities++;
                            mHistory.remove(srcPos);
                            mHistory.add(dstPos, p);
                            mWindowManager.moveAppToken(dstPos, p);
                            mWindowManager.setAppGroupId(p, p.task.taskId);
                            dstPos++;
                            if (VALIDATE_TOKENS) {
                                mWindowManager.validateAppTokens(mHistory);
                            }
                            i++;
                        }
                        if (taskTop == p) {
                            taskTop = below;
                        }
                        if (taskTopI == replyChainEnd) {
                            taskTopI = -1;
                        }
                        replyChainEnd = -1;
                        addRecentTaskLocked(target.task);
                    } else if (forceReset || finishOnTaskLaunch
                            || clearWhenTaskReset) {
                        // If the activity should just be removed -- either
                        // because it asks for it, or the task should be
                        // cleared -- then finish it and anything that is
                        // part of its reply chain.
                        if (clearWhenTaskReset) {
                            // In this case, we want to finish this activity
                            // and everything above it, so be sneaky and pretend
                            // like these are all in the reply chain.
                            replyChainEnd = targetI+1;
                            while (replyChainEnd < mHistory.size() &&
                                    ((HistoryRecord)mHistory.get(
                                                replyChainEnd)).task == task) {
                                replyChainEnd++;
                            }
                            replyChainEnd--;
                        } else if (replyChainEnd < 0) {
                            replyChainEnd = targetI;
                        }
                        HistoryRecord p = null;
                        for (int srcPos=targetI; srcPos<=replyChainEnd; srcPos++) {
                            p = (HistoryRecord)mHistory.get(srcPos);
                            if (p.finishing) {
                                continue;
                            }
                            if (finishActivityLocked(p, srcPos,
                                    Activity.RESULT_CANCELED, null, "reset")) {
                                replyChainEnd--;
                                srcPos--;
                            }
                        }
                        if (taskTop == p) {
                            taskTop = below;
                        }
                        if (taskTopI == replyChainEnd) {
                            taskTopI = -1;
                        }
                        replyChainEnd = -1;
                    } else {
                        // If we were in the middle of a chain, well the
                        // activity that started it all doesn't want anything
                        // special, so leave it all as-is.
                        replyChainEnd = -1;
                    }
                } else {
                    // Reached the bottom of the task -- any reply chain
                    // should be left as-is.
                    replyChainEnd = -1;
                }
                
            } else if (target.resultTo != null) {
                // If this activity is sending a reply to a previous
                // activity, we can't do anything with it now until
                // we reach the start of the reply chain.
                // XXX note that we are assuming the result is always
                // to the previous activity, which is almost always
                // the case but we really shouldn't count on.
                if (replyChainEnd < 0) {
                    replyChainEnd = targetI;
                }

            } else if (taskTopI >= 0 && allowTaskReparenting
                    && task.affinity != null
                    && task.affinity.equals(target.taskAffinity)) {
                // We are inside of another task...  if this activity has
                // an affinity for our task, then either remove it if we are
                // clearing or move it over to our task.  Note that
                // we currently punt on the case where we are resetting a
                // task that is not at the top but who has activities above
                // with an affinity to it...  this is really not a normal
                // case, and we will need to later pull that task to the front
                // and usually at that point we will do the reset and pick
                // up those remaining activities.  (This only happens if
                // someone starts an activity in a new task from an activity
                // in a task that is not currently on top.)
                if (forceReset || finishOnTaskLaunch) {
                    if (replyChainEnd < 0) {
                        replyChainEnd = targetI;
                    }
                    HistoryRecord p = null;
                    for (int srcPos=targetI; srcPos<=replyChainEnd; srcPos++) {
                        p = (HistoryRecord)mHistory.get(srcPos);
                        if (p.finishing) {
                            continue;
                        }
                        if (finishActivityLocked(p, srcPos,
                                Activity.RESULT_CANCELED, null, "reset")) {
                            taskTopI--;
                            lastReparentPos--;
                            replyChainEnd--;
                            srcPos--;
                        }
                    }
                    replyChainEnd = -1;
                } else {
                    if (replyChainEnd < 0) {
                        replyChainEnd = targetI;
                    }
                    for (int srcPos=replyChainEnd; srcPos>=targetI; srcPos--) {
                        HistoryRecord p = (HistoryRecord)mHistory.get(srcPos);
                        if (p.finishing) {
                            continue;
                        }
                        if (lastReparentPos < 0) {
                            lastReparentPos = taskTopI;
                            taskTop = p;
                        } else {
                            lastReparentPos--;
                        }
                        mHistory.remove(srcPos);
                        p.task.numActivities--;
                        p.task = task;
                        mHistory.add(lastReparentPos, p);
                        if (DEBUG_TASKS) Slog.v(TAG, "Pulling activity " + p
                                + " in to resetting task " + task);
                        task.numActivities++;
                        mWindowManager.moveAppToken(lastReparentPos, p);
                        mWindowManager.setAppGroupId(p, p.task.taskId);
                        if (VALIDATE_TOKENS) {
                            mWindowManager.validateAppTokens(mHistory);
                        }
                    }
                    replyChainEnd = -1;
                    
                    // Now we've moved it in to place...  but what if this is
                    // a singleTop activity and we have put it on top of another
                    // instance of the same activity?  Then we drop the instance
                    // below so it remains singleTop.
                    if (target.info.launchMode == ActivityInfo.LAUNCH_SINGLE_TOP) {
                        for (int j=lastReparentPos-1; j>=0; j--) {
                            HistoryRecord p = (HistoryRecord)mHistory.get(j);
                            if (p.finishing) {
                                continue;
                            }
                            if (p.intent.getComponent().equals(target.intent.getComponent())) {
                                if (finishActivityLocked(p, j,
                                        Activity.RESULT_CANCELED, null, "replace")) {
                                    taskTopI--;
                                    lastReparentPos--;
                                }
                            }
                        }
                    }
                }
            }
            
            target = below;
            targetI = i;
        }
        
        return taskTop;
    }
    
    /**
     * TODO: Add mController hook
     */
    public void moveTaskToFront(int task) {
        enforceCallingPermission(android.Manifest.permission.REORDER_TASKS,
                "moveTaskToFront()");

        synchronized(this) {
            if (!checkAppSwitchAllowedLocked(Binder.getCallingPid(),
                    Binder.getCallingUid(), "Task to front")) {
                return;
            }
            final long origId = Binder.clearCallingIdentity();
            try {
                int N = mRecentTasks.size();
                for (int i=0; i<N; i++) {
                    TaskRecord tr = mRecentTasks.get(i);
                    if (tr.taskId == task) {
                        moveTaskToFrontLocked(tr, null);
                        return;
                    }
                }
                for (int i=mHistory.size()-1; i>=0; i--) {
                    HistoryRecord hr = (HistoryRecord)mHistory.get(i);
                    if (hr.task.taskId == task) {
                        moveTaskToFrontLocked(hr.task, null);
                        return;
                    }
                }
            } finally {
                Binder.restoreCallingIdentity(origId);
            }
        }
    }

    private final void moveTaskToFrontLocked(TaskRecord tr, HistoryRecord reason) {
        if (DEBUG_SWITCH) Slog.v(TAG, "moveTaskToFront: " + tr);

        final int task = tr.taskId;
        int top = mHistory.size()-1;

        if (top < 0 || ((HistoryRecord)mHistory.get(top)).task.taskId == task) {
            // nothing to do!
            return;
        }

        ArrayList moved = new ArrayList();

        // Applying the affinities may have removed entries from the history,
        // so get the size again.
        top = mHistory.size()-1;
        int pos = top;

        // Shift all activities with this task up to the top
        // of the stack, keeping them in the same internal order.
        while (pos >= 0) {
            HistoryRecord r = (HistoryRecord)mHistory.get(pos);
            if (localLOGV) Slog.v(
                TAG, "At " + pos + " ckp " + r.task + ": " + r);
            boolean first = true;
            if (r.task.taskId == task) {
                if (localLOGV) Slog.v(TAG, "Removing and adding at " + top);
                mHistory.remove(pos);
                mHistory.add(top, r);
                moved.add(0, r);
                top--;
                if (first) {
                    addRecentTaskLocked(r.task);
                    first = false;
                }
            }
            pos--;
        }

        if (DEBUG_TRANSITION) Slog.v(TAG,
                "Prepare to front transition: task=" + tr);
        if (reason != null &&
                (reason.intent.getFlags()&Intent.FLAG_ACTIVITY_NO_ANIMATION) != 0) {
            mWindowManager.prepareAppTransition(WindowManagerPolicy.TRANSIT_NONE);
            HistoryRecord r = topRunningActivityLocked(null);
            if (r != null) {
                mNoAnimActivities.add(r);
            }
        } else {
            mWindowManager.prepareAppTransition(WindowManagerPolicy.TRANSIT_TASK_TO_FRONT);
        }
        
        mWindowManager.moveAppTokensToTop(moved);
        if (VALIDATE_TOKENS) {
            mWindowManager.validateAppTokens(mHistory);
        }

        finishTaskMoveLocked(task);
        EventLog.writeEvent(EventLogTags.AM_TASK_TO_FRONT, task);
    }

    private final void finishTaskMoveLocked(int task) {
        resumeTopActivityLocked(null);
    }

    public void moveTaskToBack(int task) {
        enforceCallingPermission(android.Manifest.permission.REORDER_TASKS,
                "moveTaskToBack()");

        synchronized(this) {
            if (mResumedActivity != null && mResumedActivity.task.taskId == task) {
                if (!checkAppSwitchAllowedLocked(Binder.getCallingPid(),
                        Binder.getCallingUid(), "Task to back")) {
                    return;
                }
            }
            final long origId = Binder.clearCallingIdentity();
            moveTaskToBackLocked(task, null);
            Binder.restoreCallingIdentity(origId);
        }
    }

    /**
     * Moves an activity, and all of the other activities within the same task, to the bottom
     * of the history stack.  The activity's order within the task is unchanged.
     * 
     * @param token A reference to the activity we wish to move
     * @param nonRoot If false then this only works if the activity is the root
     *                of a task; if true it will work for any activity in a task.
     * @return Returns true if the move completed, false if not.
     */
    public boolean moveActivityTaskToBack(IBinder token, boolean nonRoot) {
        synchronized(this) {
            final long origId = Binder.clearCallingIdentity();
            int taskId = getTaskForActivityLocked(token, !nonRoot);
            if (taskId >= 0) {
                return moveTaskToBackLocked(taskId, null);
            }
            Binder.restoreCallingIdentity(origId);
        }
        return false;
    }

    /**
     * Worker method for rearranging history stack.  Implements the function of moving all 
     * activities for a specific task (gathering them if disjoint) into a single group at the 
     * bottom of the stack.
     * 
     * If a watcher is installed, the action is preflighted and the watcher has an opportunity
     * to premeptively cancel the move.
     * 
     * @param task The taskId to collect and move to the bottom.
     * @return Returns true if the move completed, false if not.
     */
    private final boolean moveTaskToBackLocked(int task, HistoryRecord reason) {
        Slog.i(TAG, "moveTaskToBack: " + task);
        
        // If we have a watcher, preflight the move before committing to it.  First check
        // for *other* available tasks, but if none are available, then try again allowing the
        // current task to be selected.
        if (mController != null) {
            HistoryRecord next = topRunningActivityLocked(null, task);
            if (next == null) {
                next = topRunningActivityLocked(null, 0);
            }
            if (next != null) {
                // ask watcher if this is allowed
                boolean moveOK = true;
                try {
                    moveOK = mController.activityResuming(next.packageName);
                } catch (RemoteException e) {
                    mController = null;
                }
                if (!moveOK) {
                    return false;
                }
            }
        }

        ArrayList moved = new ArrayList();

        if (DEBUG_TRANSITION) Slog.v(TAG,
                "Prepare to back transition: task=" + task);
        
        final int N = mHistory.size();
        int bottom = 0;
        int pos = 0;

        // Shift all activities with this task down to the bottom
        // of the stack, keeping them in the same internal order.
        while (pos < N) {
            HistoryRecord r = (HistoryRecord)mHistory.get(pos);
            if (localLOGV) Slog.v(
                TAG, "At " + pos + " ckp " + r.task + ": " + r);
            if (r.task.taskId == task) {
                if (localLOGV) Slog.v(TAG, "Removing and adding at " + (N-1));
                mHistory.remove(pos);
                mHistory.add(bottom, r);
                moved.add(r);
                bottom++;
            }
            pos++;
        }

        if (reason != null &&
                (reason.intent.getFlags()&Intent.FLAG_ACTIVITY_NO_ANIMATION) != 0) {
            mWindowManager.prepareAppTransition(WindowManagerPolicy.TRANSIT_NONE);
            HistoryRecord r = topRunningActivityLocked(null);
            if (r != null) {
                mNoAnimActivities.add(r);
            }
        } else {
            mWindowManager.prepareAppTransition(WindowManagerPolicy.TRANSIT_TASK_TO_BACK);
        }
        mWindowManager.moveAppTokensToBottom(moved);
        if (VALIDATE_TOKENS) {
            mWindowManager.validateAppTokens(mHistory);
        }

        finishTaskMoveLocked(task);
        return true;
    }

    public void moveTaskBackwards(int task) {
        enforceCallingPermission(android.Manifest.permission.REORDER_TASKS,
                "moveTaskBackwards()");

        synchronized(this) {
            if (!checkAppSwitchAllowedLocked(Binder.getCallingPid(),
                    Binder.getCallingUid(), "Task backwards")) {
                return;
            }
            final long origId = Binder.clearCallingIdentity();
            moveTaskBackwardsLocked(task);
            Binder.restoreCallingIdentity(origId);
        }
    }

    private final void moveTaskBackwardsLocked(int task) {
        Slog.e(TAG, "moveTaskBackwards not yet implemented!");
    }

    public int getTaskForActivity(IBinder token, boolean onlyRoot) {
        synchronized(this) {
            return getTaskForActivityLocked(token, onlyRoot);
        }
    }

    int getTaskForActivityLocked(IBinder token, boolean onlyRoot) {
        final int N = mHistory.size();
        TaskRecord lastTask = null;
        for (int i=0; i<N; i++) {
            HistoryRecord r = (HistoryRecord)mHistory.get(i);
            if (r == token) {
                if (!onlyRoot || lastTask != r.task) {
                    return r.task.taskId;
                }
                return -1;
            }
            lastTask = r.task;
        }

        return -1;
    }

    /**
     * Returns the top activity in any existing task matching the given
     * Intent.  Returns null if no such task is found.
     */
    private HistoryRecord findTaskLocked(Intent intent, ActivityInfo info) {
        ComponentName cls = intent.getComponent();
        if (info.targetActivity != null) {
            cls = new ComponentName(info.packageName, info.targetActivity);
        }

        TaskRecord cp = null;

        final int N = mHistory.size();
        for (int i=(N-1); i>=0; i--) {
            HistoryRecord r = (HistoryRecord)mHistory.get(i);
            if (!r.finishing && r.task != cp
                    && r.launchMode != ActivityInfo.LAUNCH_SINGLE_INSTANCE) {
                cp = r.task;
                //Slog.i(TAG, "Comparing existing cls=" + r.task.intent.getComponent().flattenToShortString()
                //        + "/aff=" + r.task.affinity + " to new cls="
                //        + intent.getComponent().flattenToShortString() + "/aff=" + taskAffinity);
                if (r.task.affinity != null) {
                    if (r.task.affinity.equals(info.taskAffinity)) {
                        //Slog.i(TAG, "Found matching affinity!");
                        return r;
                    }
                } else if (r.task.intent != null
                        && r.task.intent.getComponent().equals(cls)) {
                    //Slog.i(TAG, "Found matching class!");
                    //dump();
                    //Slog.i(TAG, "For Intent " + intent + " bringing to top: " + r.intent);
                    return r;
                } else if (r.task.affinityIntent != null
                        && r.task.affinityIntent.getComponent().equals(cls)) {
                    //Slog.i(TAG, "Found matching class!");
                    //dump();
                    //Slog.i(TAG, "For Intent " + intent + " bringing to top: " + r.intent);
                    return r;
                }
            }
        }

        return null;
    }

    /**
     * Returns the first activity (starting from the top of the stack) that
     * is the same as the given activity.  Returns null if no such activity
     * is found.
     */
    private HistoryRecord findActivityLocked(Intent intent, ActivityInfo info) {
        ComponentName cls = intent.getComponent();
        if (info.targetActivity != null) {
            cls = new ComponentName(info.packageName, info.targetActivity);
        }

        final int N = mHistory.size();
        for (int i=(N-1); i>=0; i--) {
            HistoryRecord r = (HistoryRecord)mHistory.get(i);
            if (!r.finishing) {
                if (r.intent.getComponent().equals(cls)) {
                    //Slog.i(TAG, "Found matching class!");
                    //dump();
                    //Slog.i(TAG, "For Intent " + intent + " bringing to top: " + r.intent);
                    return r;
                }
            }
        }

        return null;
    }

    public void finishOtherInstances(IBinder token, ComponentName className) {
        synchronized(this) {
            final long origId = Binder.clearCallingIdentity();

            int N = mHistory.size();
            TaskRecord lastTask = null;
            for (int i=0; i<N; i++) {
                HistoryRecord r = (HistoryRecord)mHistory.get(i);
                if (r.realActivity.equals(className)
                        && r != token && lastTask != r.task) {
                    if (finishActivityLocked(r, i, Activity.RESULT_CANCELED,
                            null, "others")) {
                        i--;
                        N--;
                    }
                }
                lastTask = r.task;
            }

            Binder.restoreCallingIdentity(origId);
        }
    }

    // =========================================================
    // THUMBNAILS
    // =========================================================

    public void reportThumbnail(IBinder token,
            Bitmap thumbnail, CharSequence description) {
        //System.out.println("Report thumbnail for " + token + ": " + thumbnail);
        final long origId = Binder.clearCallingIdentity();
        sendPendingThumbnail(null, token, thumbnail, description, true);
        Binder.restoreCallingIdentity(origId);
    }

    final void sendPendingThumbnail(HistoryRecord r, IBinder token,
            Bitmap thumbnail, CharSequence description, boolean always) {
        TaskRecord task = null;
        ArrayList receivers = null;

        //System.out.println("Send pending thumbnail: " + r);

        synchronized(this) {
            if (r == null) {
                int index = indexOfTokenLocked(token);
                if (index < 0) {
                    return;
                }
                r = (HistoryRecord)mHistory.get(index);
            }
            if (thumbnail == null) {
                thumbnail = r.thumbnail;
                description = r.description;
            }
            if (thumbnail == null && !always) {
                // If there is no thumbnail, and this entry is not actually
                // going away, then abort for now and pick up the next
                // thumbnail we get.
                return;
            }
            task = r.task;

            int N = mPendingThumbnails.size();
            int i=0;
            while (i<N) {
                PendingThumbnailsRecord pr =
                    (PendingThumbnailsRecord)mPendingThumbnails.get(i);
                //System.out.println("Looking in " + pr.pendingRecords);
                if (pr.pendingRecords.remove(r)) {
                    if (receivers == null) {
                        receivers = new ArrayList();
                    }
                    receivers.add(pr);
                    if (pr.pendingRecords.size() == 0) {
                        pr.finished = true;
                        mPendingThumbnails.remove(i);
                        N--;
                        continue;
                    }
                }
                i++;
            }
        }

        if (receivers != null) {
            final int N = receivers.size();
            for (int i=0; i<N; i++) {
                try {
                    PendingThumbnailsRecord pr =
                        (PendingThumbnailsRecord)receivers.get(i);
                    pr.receiver.newThumbnail(
                        task != null ? task.taskId : -1, thumbnail, description);
                    if (pr.finished) {
                        pr.receiver.finished();
                    }
                } catch (Exception e) {
                    Slog.w(TAG, "Exception thrown when sending thumbnail", e);
                }
            }
        }
    }

    // =========================================================
    // CONTENT PROVIDERS
    // =========================================================

    private final List generateApplicationProvidersLocked(ProcessRecord app) {
        List providers = null;
        try {
            providers = ActivityThread.getPackageManager().
                queryContentProviders(app.processName, app.info.uid,
                        STOCK_PM_FLAGS | PackageManager.GET_URI_PERMISSION_PATTERNS);
        } catch (RemoteException ex) {
        }
        if (providers != null) {
            final int N = providers.size();
            for (int i=0; i<N; i++) {
                ProviderInfo cpi =
                    (ProviderInfo)providers.get(i);
                ContentProviderRecord cpr =
                    (ContentProviderRecord)mProvidersByClass.get(cpi.name);
                if (cpr == null) {
                    cpr = new ContentProviderRecord(cpi, app.info);
                    mProvidersByClass.put(cpi.name, cpr);
                }
                app.pubProviders.put(cpi.name, cpr);
                app.addPackage(cpi.applicationInfo.packageName);
                ensurePackageDexOpt(cpi.applicationInfo.packageName);
            }
        }
        return providers;
    }

    private final String checkContentProviderPermissionLocked(
            ProviderInfo cpi, ProcessRecord r, int mode) {
        final int callingPid = (r != null) ? r.pid : Binder.getCallingPid();
        final int callingUid = (r != null) ? r.info.uid : Binder.getCallingUid();
        if (checkComponentPermission(cpi.readPermission, callingPid, callingUid,
                cpi.exported ? -1 : cpi.applicationInfo.uid)
                == PackageManager.PERMISSION_GRANTED
                && mode == ParcelFileDescriptor.MODE_READ_ONLY || mode == -1) {
            return null;
        }
        if (checkComponentPermission(cpi.writePermission, callingPid, callingUid,
                cpi.exported ? -1 : cpi.applicationInfo.uid)
                == PackageManager.PERMISSION_GRANTED) {
            return null;
        }
        
        PathPermission[] pps = cpi.pathPermissions;
        if (pps != null) {
            int i = pps.length;
            while (i > 0) {
                i--;
                PathPermission pp = pps[i];
                if (checkComponentPermission(pp.getReadPermission(), callingPid, callingUid,
                        cpi.exported ? -1 : cpi.applicationInfo.uid)
                        == PackageManager.PERMISSION_GRANTED
                        && mode == ParcelFileDescriptor.MODE_READ_ONLY || mode == -1) {
                    return null;
                }
                if (checkComponentPermission(pp.getWritePermission(), callingPid, callingUid,
                        cpi.exported ? -1 : cpi.applicationInfo.uid)
                        == PackageManager.PERMISSION_GRANTED) {
                    return null;
                }
            }
        }
        
        String msg = "Permission Denial: opening provider " + cpi.name
                + " from " + (r != null ? r : "(null)") + " (pid=" + callingPid
                + ", uid=" + callingUid + ") requires "
                + cpi.readPermission + " or " + cpi.writePermission;
        Slog.w(TAG, msg);
        return msg;
    }

    private final ContentProviderHolder getContentProviderImpl(
        IApplicationThread caller, String name) {
        ContentProviderRecord cpr;
        ProviderInfo cpi = null;

        synchronized(this) {
            ProcessRecord r = null;
            if (caller != null) {
                r = getRecordForAppLocked(caller);
                if (r == null) {
                    throw new SecurityException(
                            "Unable to find app for caller " + caller
                          + " (pid=" + Binder.getCallingPid()
                          + ") when getting content provider " + name);
                }
            }

            // First check if this content provider has been published...
            cpr = (ContentProviderRecord)mProvidersByName.get(name);
            if (cpr != null) {
                cpi = cpr.info;
                if (checkContentProviderPermissionLocked(cpi, r, -1) != null) {
                    return new ContentProviderHolder(cpi,
                            cpi.readPermission != null
                                    ? cpi.readPermission : cpi.writePermission);
                }

                if (r != null && cpr.canRunHere(r)) {
                    // This provider has been published or is in the process
                    // of being published...  but it is also allowed to run
                    // in the caller's process, so don't make a connection
                    // and just let the caller instantiate its own instance.
                    if (cpr.provider != null) {
                        // don't give caller the provider object, it needs
                        // to make its own.
                        cpr = new ContentProviderRecord(cpr);
                    }
                    return cpr;
                }

                final long origId = Binder.clearCallingIdentity();

                // In this case the provider instance already exists, so we can
                // return it right away.
                if (r != null) {
                    if (DEBUG_PROVIDER) Slog.v(TAG,
                            "Adding provider requested by "
                            + r.processName + " from process "
                            + cpr.info.processName);
                    Integer cnt = r.conProviders.get(cpr);
                    if (cnt == null) {
                        r.conProviders.put(cpr, new Integer(1));
                    } else {
                        r.conProviders.put(cpr, new Integer(cnt.intValue()+1));
                    }
                    cpr.clients.add(r);
                    if (cpr.app != null && r.setAdj >= VISIBLE_APP_ADJ) {
                        // If this is a visible app accessing the provider,
                        // make sure to count it as being accessed and thus
                        // back up on the LRU list.  This is good because
                        // content providers are often expensive to start.
                        updateLruProcessLocked(cpr.app, false, true);
                    }
                } else {
                    cpr.externals++;
                }

                if (cpr.app != null) {
                    updateOomAdjLocked(cpr.app);
                }

                Binder.restoreCallingIdentity(origId);

            } else {
                try {
                    cpi = ActivityThread.getPackageManager().
                        resolveContentProvider(name,
                                STOCK_PM_FLAGS | PackageManager.GET_URI_PERMISSION_PATTERNS);
                } catch (RemoteException ex) {
                }
                if (cpi == null) {
                    return null;
                }

                if (checkContentProviderPermissionLocked(cpi, r, -1) != null) {
                    return new ContentProviderHolder(cpi,
                            cpi.readPermission != null
                                    ? cpi.readPermission : cpi.writePermission);
                }

                if (!mSystemReady && !mDidUpdate && !mWaitingUpdate
                        && !cpi.processName.equals("system")) {
                    // If this content provider does not run in the system
                    // process, and the system is not yet ready to run other
                    // processes, then fail fast instead of hanging.
                    throw new IllegalArgumentException(
                            "Attempt to launch content provider before system ready");
                }
                
                cpr = (ContentProviderRecord)mProvidersByClass.get(cpi.name);
                final boolean firstClass = cpr == null;
                if (firstClass) {
                    try {
                        ApplicationInfo ai =
                            ActivityThread.getPackageManager().
                                getApplicationInfo(
                                        cpi.applicationInfo.packageName,
                                        STOCK_PM_FLAGS);
                        if (ai == null) {
                            Slog.w(TAG, "No package info for content provider "
                                    + cpi.name);
                            return null;
                        }
                        cpr = new ContentProviderRecord(cpi, ai);
                    } catch (RemoteException ex) {
                        // pm is in same process, this will never happen.
                    }
                }

                if (r != null && cpr.canRunHere(r)) {
                    // If this is a multiprocess provider, then just return its
                    // info and allow the caller to instantiate it.  Only do
                    // this if the provider is the same user as the caller's
                    // process, or can run as root (so can be in any process).
                    return cpr;
                }

                if (DEBUG_PROVIDER) {
                    RuntimeException e = new RuntimeException("here");
                    Slog.w(TAG, "LAUNCHING REMOTE PROVIDER (myuid " + r.info.uid
                          + " pruid " + cpr.appInfo.uid + "): " + cpr.info.name, e);
                }

                // This is single process, and our app is now connecting to it.
                // See if we are already in the process of launching this
                // provider.
                final int N = mLaunchingProviders.size();
                int i;
                for (i=0; i<N; i++) {
                    if (mLaunchingProviders.get(i) == cpr) {
                        break;
                    }
                }

                // If the provider is not already being launched, then get it
                // started.
                if (i >= N) {
                    final long origId = Binder.clearCallingIdentity();
                    ProcessRecord proc = startProcessLocked(cpi.processName,
                            cpr.appInfo, false, 0, "content provider",
                            new ComponentName(cpi.applicationInfo.packageName,
                                    cpi.name), false);
                    if (proc == null) {
                        Slog.w(TAG, "Unable to launch app "
                                + cpi.applicationInfo.packageName + "/"
                                + cpi.applicationInfo.uid + " for provider "
                                + name + ": process is bad");
                        return null;
                    }
                    cpr.launchingApp = proc;
                    mLaunchingProviders.add(cpr);
                    Binder.restoreCallingIdentity(origId);
                }

                // Make sure the provider is published (the same provider class
                // may be published under multiple names).
                if (firstClass) {
                    mProvidersByClass.put(cpi.name, cpr);
                }
                mProvidersByName.put(name, cpr);

                if (r != null) {
                    if (DEBUG_PROVIDER) Slog.v(TAG,
                            "Adding provider requested by "
                            + r.processName + " from process "
                            + cpr.info.processName);
                    Integer cnt = r.conProviders.get(cpr);
                    if (cnt == null) {
                        r.conProviders.put(cpr, new Integer(1));
                    } else {
                        r.conProviders.put(cpr, new Integer(cnt.intValue()+1));
                    }
                    cpr.clients.add(r);
                } else {
                    cpr.externals++;
                }
            }
        }

        // Wait for the provider to be published...
        synchronized (cpr) {
            while (cpr.provider == null) {
                if (cpr.launchingApp == null) {
                    Slog.w(TAG, "Unable to launch app "
                            + cpi.applicationInfo.packageName + "/"
                            + cpi.applicationInfo.uid + " for provider "
                            + name + ": launching app became null");
                    EventLog.writeEvent(EventLogTags.AM_PROVIDER_LOST_PROCESS,
                            cpi.applicationInfo.packageName,
                            cpi.applicationInfo.uid, name);
                    return null;
                }
                try {
                    cpr.wait();
                } catch (InterruptedException ex) {
                }
            }
        }
        return cpr;
    }

    public final ContentProviderHolder getContentProvider(
            IApplicationThread caller, String name) {
        if (caller == null) {
            String msg = "null IApplicationThread when getting content provider "
                    + name;
            Slog.w(TAG, msg);
            throw new SecurityException(msg);
        }

        return getContentProviderImpl(caller, name);
    }

    private ContentProviderHolder getContentProviderExternal(String name) {
        return getContentProviderImpl(null, name);
    }

    /**
     * Drop a content provider from a ProcessRecord's bookkeeping
     * @param cpr
     */
    public void removeContentProvider(IApplicationThread caller, String name) {
        synchronized (this) {
            ContentProviderRecord cpr = (ContentProviderRecord)mProvidersByName.get(name);
            if(cpr == null) {
                // remove from mProvidersByClass
                if (DEBUG_PROVIDER) Slog.v(TAG, name +
                        " provider not found in providers list");
                return;
            }
            final ProcessRecord r = getRecordForAppLocked(caller);
            if (r == null) {
                throw new SecurityException(
                        "Unable to find app for caller " + caller +
                        " when removing content provider " + name);
            }
            //update content provider record entry info
            ContentProviderRecord localCpr = (ContentProviderRecord)
                    mProvidersByClass.get(cpr.info.name);
            if (DEBUG_PROVIDER) Slog.v(TAG, "Removing provider requested by "
                    + r.info.processName + " from process "
                    + localCpr.appInfo.processName);
            if (localCpr.app == r) {
                //should not happen. taken care of as a local provider
                Slog.w(TAG, "removeContentProvider called on local provider: "
                        + cpr.info.name + " in process " + r.processName);
                return;
            } else {
                Integer cnt = r.conProviders.get(localCpr);
                if (cnt == null || cnt.intValue() <= 1) {
                    localCpr.clients.remove(r);
                    r.conProviders.remove(localCpr);
                } else {
                    r.conProviders.put(localCpr, new Integer(cnt.intValue()-1));
                }
            }
            updateOomAdjLocked();
        }
    }

    private void removeContentProviderExternal(String name) {
        synchronized (this) {
            ContentProviderRecord cpr = (ContentProviderRecord)mProvidersByName.get(name);
            if(cpr == null) {
                //remove from mProvidersByClass
                if(localLOGV) Slog.v(TAG, name+" content provider not found in providers list");
                return;
            }

            //update content provider record entry info
            ContentProviderRecord localCpr = (ContentProviderRecord) mProvidersByClass.get(cpr.info.name);
            localCpr.externals--;
            if (localCpr.externals < 0) {
                Slog.e(TAG, "Externals < 0 for content provider " + localCpr);
            }
            updateOomAdjLocked();
        }
    }
    
    public final void publishContentProviders(IApplicationThread caller,
            List<ContentProviderHolder> providers) {
        if (providers == null) {
            return;
        }

        synchronized(this) {
            final ProcessRecord r = getRecordForAppLocked(caller);
            if (r == null) {
                throw new SecurityException(
                        "Unable to find app for caller " + caller
                      + " (pid=" + Binder.getCallingPid()
                      + ") when publishing content providers");
            }

            final long origId = Binder.clearCallingIdentity();

            final int N = providers.size();
            for (int i=0; i<N; i++) {
                ContentProviderHolder src = providers.get(i);
                if (src == null || src.info == null || src.provider == null) {
                    continue;
                }
                ContentProviderRecord dst =
                    (ContentProviderRecord)r.pubProviders.get(src.info.name);
                if (dst != null) {
                    mProvidersByClass.put(dst.info.name, dst);
                    String names[] = dst.info.authority.split(";");
                    for (int j = 0; j < names.length; j++) {
                        mProvidersByName.put(names[j], dst);
                    }

                    int NL = mLaunchingProviders.size();
                    int j;
                    for (j=0; j<NL; j++) {
                        if (mLaunchingProviders.get(j) == dst) {
                            mLaunchingProviders.remove(j);
                            j--;
                            NL--;
                        }
                    }
                    synchronized (dst) {
                        dst.provider = src.provider;
                        dst.app = r;
                        dst.notifyAll();
                    }
                    updateOomAdjLocked(r);
                }
            }

            Binder.restoreCallingIdentity(origId);
        }
    }

    public static final void installSystemProviders() {
        List providers;
        synchronized (mSelf) {
            ProcessRecord app = mSelf.mProcessNames.get("system", Process.SYSTEM_UID);
            providers = mSelf.generateApplicationProvidersLocked(app);
            if (providers != null) {
                for (int i=providers.size()-1; i>=0; i--) {
                    ProviderInfo pi = (ProviderInfo)providers.get(i);
                    if ((pi.applicationInfo.flags&ApplicationInfo.FLAG_SYSTEM) == 0) {
                        Slog.w(TAG, "Not installing system proc provider " + pi.name
                                + ": not system .apk");
                        providers.remove(i);
                    }
                }
            }
        }
        if (providers != null) {
            mSystemThread.installSystemProviders(providers);
        }
    }

    // =========================================================
    // GLOBAL MANAGEMENT
    // =========================================================

    final ProcessRecord newProcessRecordLocked(IApplicationThread thread,
            ApplicationInfo info, String customProcess) {
        String proc = customProcess != null ? customProcess : info.processName;
        BatteryStatsImpl.Uid.Proc ps = null;
        BatteryStatsImpl stats = mBatteryStatsService.getActiveStatistics();
        synchronized (stats) {
            ps = stats.getProcessStatsLocked(info.uid, proc);
        }
        return new ProcessRecord(ps, thread, info, proc);
    }

    final ProcessRecord addAppLocked(ApplicationInfo info) {
        ProcessRecord app = getProcessRecordLocked(info.processName, info.uid);

        if (app == null) {
            app = newProcessRecordLocked(null, info, null);
            mProcessNames.put(info.processName, info.uid, app);
            updateLruProcessLocked(app, true, true);
        }

        if ((info.flags&(ApplicationInfo.FLAG_SYSTEM|ApplicationInfo.FLAG_PERSISTENT))
                == (ApplicationInfo.FLAG_SYSTEM|ApplicationInfo.FLAG_PERSISTENT)) {
            app.persistent = true;
            app.maxAdj = CORE_SERVER_ADJ;
        }
        if (app.thread == null && mPersistentStartingProcesses.indexOf(app) < 0) {
            mPersistentStartingProcesses.add(app);
            startProcessLocked(app, "added application", app.processName);
        }

        return app;
    }

    public void unhandledBack() {
        enforceCallingPermission(android.Manifest.permission.FORCE_BACK,
                "unhandledBack()");

        synchronized(this) {
            int count = mHistory.size();
            if (DEBUG_SWITCH) Slog.d(
                TAG, "Performing unhandledBack(): stack size = " + count);
            if (count > 1) {
                final long origId = Binder.clearCallingIdentity();
                finishActivityLocked((HistoryRecord)mHistory.get(count-1),
                        count-1, Activity.RESULT_CANCELED, null, "unhandled-back");
                Binder.restoreCallingIdentity(origId);
            }
        }
    }

    public ParcelFileDescriptor openContentUri(Uri uri) throws RemoteException {
        String name = uri.getAuthority();
        ContentProviderHolder cph = getContentProviderExternal(name);
        ParcelFileDescriptor pfd = null;
        if (cph != null) {
            // We record the binder invoker's uid in thread-local storage before
            // going to the content provider to open the file.  Later, in the code
            // that handles all permissions checks, we look for this uid and use
            // that rather than the Activity Manager's own uid.  The effect is that
            // we do the check against the caller's permissions even though it looks
            // to the content provider like the Activity Manager itself is making
            // the request.
            sCallerIdentity.set(new Identity(
                    Binder.getCallingPid(), Binder.getCallingUid()));
            try {
                pfd = cph.provider.openFile(uri, "r");
            } catch (FileNotFoundException e) {
                // do nothing; pfd will be returned null
            } finally {
                // Ensure that whatever happens, we clean up the identity state
                sCallerIdentity.remove();
            }

            // We've got the fd now, so we're done with the provider.
            removeContentProviderExternal(name);
        } else {
            Slog.d(TAG, "Failed to get provider for authority '" + name + "'");
        }
        return pfd;
    }

    public void goingToSleep() {
        synchronized(this) {
            mSleeping = true;
            mWindowManager.setEventDispatching(false);

            if (mResumedActivity != null) {
                pauseIfSleepingLocked();
            } else {
                Slog.w(TAG, "goingToSleep with no resumed activity!");
            }
        }
    }

    public boolean shutdown(int timeout) {
        if (checkCallingPermission(android.Manifest.permission.SHUTDOWN)
                != PackageManager.PERMISSION_GRANTED) {
            throw new SecurityException("Requires permission "
                    + android.Manifest.permission.SHUTDOWN);
        }
        
        boolean timedout = false;
        
        synchronized(this) {
            mShuttingDown = true;
            mWindowManager.setEventDispatching(false);

            if (mResumedActivity != null) {
                pauseIfSleepingLocked();
                final long endTime = System.currentTimeMillis() + timeout;
                while (mResumedActivity != null || mPausingActivity != null) {
                    long delay = endTime - System.currentTimeMillis();
                    if (delay <= 0) {
                        Slog.w(TAG, "Activity manager shutdown timed out");
                        timedout = true;
                        break;
                    }
                    try {
                        this.wait();
                    } catch (InterruptedException e) {
                    }
                }
            }
        }
        
        mUsageStatsService.shutdown();
        mBatteryStatsService.shutdown();
        
        return timedout;
    }
    
    void pauseIfSleepingLocked() {
        if (mSleeping || mShuttingDown) {
            if (!mGoingToSleep.isHeld()) {
                mGoingToSleep.acquire();
                if (mLaunchingActivity.isHeld()) {
                    mLaunchingActivity.release();
                    mHandler.removeMessages(LAUNCH_TIMEOUT_MSG);
                }
            }

            // If we are not currently pausing an activity, get the current
            // one to pause.  If we are pausing one, we will just let that stuff
            // run and release the wake lock when all done.
            if (mPausingActivity == null) {
                if (DEBUG_PAUSE) Slog.v(TAG, "Sleep needs to pause...");
                if (DEBUG_USER_LEAVING) Slog.v(TAG, "Sleep => pause with userLeaving=false");
                startPausingLocked(false, true);
            }
        }
    }
    
    public void wakingUp() {
        synchronized(this) {
            if (mGoingToSleep.isHeld()) {
                mGoingToSleep.release();
            }
            mWindowManager.setEventDispatching(true);
            mSleeping = false;
            resumeTopActivityLocked(null);
        }
    }

    public void stopAppSwitches() {
        if (checkCallingPermission(android.Manifest.permission.STOP_APP_SWITCHES)
                != PackageManager.PERMISSION_GRANTED) {
            throw new SecurityException("Requires permission "
                    + android.Manifest.permission.STOP_APP_SWITCHES);
        }
        
        synchronized(this) {
            mAppSwitchesAllowedTime = SystemClock.uptimeMillis()
                    + APP_SWITCH_DELAY_TIME;
            mDidAppSwitch = false;
            mHandler.removeMessages(DO_PENDING_ACTIVITY_LAUNCHES_MSG);
            Message msg = mHandler.obtainMessage(DO_PENDING_ACTIVITY_LAUNCHES_MSG);
            mHandler.sendMessageDelayed(msg, APP_SWITCH_DELAY_TIME);
        }
    }
    
    public void resumeAppSwitches() {
        if (checkCallingPermission(android.Manifest.permission.STOP_APP_SWITCHES)
                != PackageManager.PERMISSION_GRANTED) {
            throw new SecurityException("Requires permission "
                    + android.Manifest.permission.STOP_APP_SWITCHES);
        }
        
        synchronized(this) {
            // Note that we don't execute any pending app switches... we will
            // let those wait until either the timeout, or the next start
            // activity request.
            mAppSwitchesAllowedTime = 0;
        }
    }
    
    boolean checkAppSwitchAllowedLocked(int callingPid, int callingUid,
            String name) {
        if (mAppSwitchesAllowedTime < SystemClock.uptimeMillis()) {
            return true;
        }
            
        final int perm = checkComponentPermission(
                android.Manifest.permission.STOP_APP_SWITCHES, callingPid,
                callingUid, -1);
        if (perm == PackageManager.PERMISSION_GRANTED) {
            return true;
        }
        
        Slog.w(TAG, name + " request from " + callingUid + " stopped");
        return false;
    }
    
    public void setDebugApp(String packageName, boolean waitForDebugger,
            boolean persistent) {
        enforceCallingPermission(android.Manifest.permission.SET_DEBUG_APP,
                "setDebugApp()");

        // Note that this is not really thread safe if there are multiple
        // callers into it at the same time, but that's not a situation we
        // care about.
        if (persistent) {
            final ContentResolver resolver = mContext.getContentResolver();
            Settings.System.putString(
                resolver, Settings.System.DEBUG_APP,
                packageName);
            Settings.System.putInt(
                resolver, Settings.System.WAIT_FOR_DEBUGGER,
                waitForDebugger ? 1 : 0);
        }

        synchronized (this) {
            if (!persistent) {
                mOrigDebugApp = mDebugApp;
                mOrigWaitForDebugger = mWaitForDebugger;
            }
            mDebugApp = packageName;
            mWaitForDebugger = waitForDebugger;
            mDebugTransient = !persistent;
            if (packageName != null) {
                final long origId = Binder.clearCallingIdentity();
                forceStopPackageLocked(packageName, -1, false, false, true);
                Binder.restoreCallingIdentity(origId);
            }
        }
    }

    public void setAlwaysFinish(boolean enabled) {
        enforceCallingPermission(android.Manifest.permission.SET_ALWAYS_FINISH,
                "setAlwaysFinish()");

        Settings.System.putInt(
                mContext.getContentResolver(),
                Settings.System.ALWAYS_FINISH_ACTIVITIES, enabled ? 1 : 0);
        
        synchronized (this) {
            mAlwaysFinishActivities = enabled;
        }
    }

    public void setActivityController(IActivityController controller) {
        enforceCallingPermission(android.Manifest.permission.SET_ACTIVITY_WATCHER,
                "setActivityController()");
        synchronized (this) {
            mController = controller;
        }
    }

    public boolean isUserAMonkey() {
        // For now the fact that there is a controller implies
        // we have a monkey.
        synchronized (this) {
            return mController != null;
        }
    }
    
    public void registerActivityWatcher(IActivityWatcher watcher) {
        synchronized (this) {
            mWatchers.register(watcher);
        }
    }

    public void unregisterActivityWatcher(IActivityWatcher watcher) {
        synchronized (this) {
            mWatchers.unregister(watcher);
        }
    }

    public final void enterSafeMode() {
        synchronized(this) {
            // It only makes sense to do this before the system is ready
            // and started launching other packages.
            if (!mSystemReady) {
                try {
                    ActivityThread.getPackageManager().enterSafeMode();
                } catch (RemoteException e) {
                }

                View v = LayoutInflater.from(mContext).inflate(
                        com.android.internal.R.layout.safe_mode, null);
                WindowManager.LayoutParams lp = new WindowManager.LayoutParams();
                lp.type = WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY;
                lp.width = WindowManager.LayoutParams.WRAP_CONTENT;
                lp.height = WindowManager.LayoutParams.WRAP_CONTENT;
                lp.gravity = Gravity.BOTTOM | Gravity.LEFT;
                lp.format = v.getBackground().getOpacity();
                lp.flags = WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
                        | WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE;
                ((WindowManager)mContext.getSystemService(
                        Context.WINDOW_SERVICE)).addView(v, lp);
            }
        }
    }

    public void noteWakeupAlarm(IIntentSender sender) {
        if (!(sender instanceof PendingIntentRecord)) {
            return;
        }
        BatteryStatsImpl stats = mBatteryStatsService.getActiveStatistics();
        synchronized (stats) {
            if (mBatteryStatsService.isOnBattery()) {
                mBatteryStatsService.enforceCallingPermission();
                PendingIntentRecord rec = (PendingIntentRecord)sender;
                int MY_UID = Binder.getCallingUid();
                int uid = rec.uid == MY_UID ? Process.SYSTEM_UID : rec.uid;
                BatteryStatsImpl.Uid.Pkg pkg =
                    stats.getPackageStatsLocked(uid, rec.key.packageName);
                pkg.incWakeupsLocked();
            }
        }
    }

    public boolean killPids(int[] pids, String pReason) {
        if (Binder.getCallingUid() != Process.SYSTEM_UID) {
            throw new SecurityException("killPids only available to the system");
        }
        String reason = (pReason == null) ? "Unknown" : pReason;
        // XXX Note: don't acquire main activity lock here, because the window
        // manager calls in with its locks held.
        
        boolean killed = false;
        synchronized (mPidsSelfLocked) {
            int[] types = new int[pids.length];
            int worstType = 0;
            for (int i=0; i<pids.length; i++) {
                ProcessRecord proc = mPidsSelfLocked.get(pids[i]);
                if (proc != null) {
                    int type = proc.setAdj;
                    types[i] = type;
                    if (type > worstType) {
                        worstType = type;
                    }
                }
            }
            
            // If the worse oom_adj is somewhere in the hidden proc LRU range,
            // then constrain it so we will kill all hidden procs.
            if (worstType < EMPTY_APP_ADJ && worstType > HIDDEN_APP_MIN_ADJ) {
                worstType = HIDDEN_APP_MIN_ADJ;
            }
            Slog.w(TAG, "Killing processes " + reason + " at adjustment " + worstType);
            for (int i=0; i<pids.length; i++) {
                ProcessRecord proc = mPidsSelfLocked.get(pids[i]);
                if (proc == null) {
                    continue;
                }
                int adj = proc.setAdj;
                if (adj >= worstType && !proc.killedBackground) {
                    Slog.w(TAG, "Killing " + proc + " (adj " + adj + "): " + reason);
                    EventLog.writeEvent(EventLogTags.AM_KILL, proc.pid,
                            proc.processName, adj, reason);
                    killed = true;
                    proc.killedBackground = true;
                    Process.killProcessQuiet(pids[i]);
                }
            }
        }
        return killed;
    }
    
    public void reportPss(IApplicationThread caller, int pss) {
        Watchdog.PssRequestor req;
        String name;
        ProcessRecord callerApp;
        synchronized (this) {
            if (caller == null) {
                return;
            }
            callerApp = getRecordForAppLocked(caller);
            if (callerApp == null) {
                return;
            }
            callerApp.lastPss = pss;
            req = callerApp;
            name = callerApp.processName;
        }
        Watchdog.getInstance().reportPss(req, name, pss);
        if (!callerApp.persistent) {
            removeRequestedPss(callerApp);
        }
    }
    
    public void requestPss(Runnable completeCallback) {
        ArrayList<ProcessRecord> procs;
        synchronized (this) {
            mRequestPssCallback = completeCallback;
            mRequestPssList.clear();
            for (int i=mLruProcesses.size()-1; i>=0; i--) {
                ProcessRecord proc = mLruProcesses.get(i);
                if (!proc.persistent) {
                    mRequestPssList.add(proc);
                }
            }
            procs = new ArrayList<ProcessRecord>(mRequestPssList);
        }
        
        int oldPri = Process.getThreadPriority(Process.myTid()); 
        Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
        for (int i=procs.size()-1; i>=0; i--) {
            ProcessRecord proc = procs.get(i);
            proc.lastPss = 0;
            proc.requestPss();
        }
        Process.setThreadPriority(oldPri);
    }
    
    void removeRequestedPss(ProcessRecord proc) {
        Runnable callback = null;
        synchronized (this) {
            if (mRequestPssList.remove(proc)) {
                if (mRequestPssList.size() == 0) {
                    callback = mRequestPssCallback;
                    mRequestPssCallback = null;
                }
            }
        }
        
        if (callback != null) {
            callback.run();
        }
    }
    
    public void collectPss(Watchdog.PssStats stats) {
        stats.mEmptyPss = 0;
        stats.mEmptyCount = 0;
        stats.mBackgroundPss = 0;
        stats.mBackgroundCount = 0;
        stats.mServicePss = 0;
        stats.mServiceCount = 0;
        stats.mVisiblePss = 0;
        stats.mVisibleCount = 0;
        stats.mForegroundPss = 0;
        stats.mForegroundCount = 0;
        stats.mNoPssCount = 0;
        synchronized (this) {
            int i;
            int NPD = mProcDeaths.length < stats.mProcDeaths.length
                    ? mProcDeaths.length : stats.mProcDeaths.length;
            int aggr = 0;
            for (i=0; i<NPD; i++) {
                aggr += mProcDeaths[i];
                stats.mProcDeaths[i] = aggr;
            }
            while (i<stats.mProcDeaths.length) {
                stats.mProcDeaths[i] = 0;
                i++;
            }
            
            for (i=mLruProcesses.size()-1; i>=0; i--) {
                ProcessRecord proc = mLruProcesses.get(i);
                if (proc.persistent) {
                    continue;
                }
                //Slog.i(TAG, "Proc " + proc + ": pss=" + proc.lastPss);
                if (proc.lastPss == 0) {
                    stats.mNoPssCount++;
                    continue;
                }
                if (proc.setAdj >= HIDDEN_APP_MIN_ADJ) {
                    if (proc.empty) {
                        stats.mEmptyPss += proc.lastPss;
                        stats.mEmptyCount++;
                    } else {
                        stats.mBackgroundPss += proc.lastPss;
                        stats.mBackgroundCount++;
                    }
                } else if (proc.setAdj >= VISIBLE_APP_ADJ) {
                    stats.mVisiblePss += proc.lastPss;
                    stats.mVisibleCount++;
                } else {
                    stats.mForegroundPss += proc.lastPss;
                    stats.mForegroundCount++;
                }
            }
        }
    }
    
    public final void startRunning(String pkg, String cls, String action,
            String data) {
        synchronized(this) {
            if (mStartRunning) {
                return;
            }
            mStartRunning = true;
            mTopComponent = pkg != null && cls != null
                    ? new ComponentName(pkg, cls) : null;
            mTopAction = action != null ? action : Intent.ACTION_MAIN;
            mTopData = data;
            if (!mSystemReady) {
                return;
            }
        }

        systemReady(null);
    }

    private void retrieveSettings() {
        final ContentResolver resolver = mContext.getContentResolver();
        String debugApp = Settings.System.getString(
            resolver, Settings.System.DEBUG_APP);
        boolean waitForDebugger = Settings.System.getInt(
            resolver, Settings.System.WAIT_FOR_DEBUGGER, 0) != 0;
        boolean alwaysFinishActivities = Settings.System.getInt(
            resolver, Settings.System.ALWAYS_FINISH_ACTIVITIES, 0) != 0;

        Configuration configuration = new Configuration();
        Settings.System.getConfiguration(resolver, configuration);

        synchronized (this) {
            mDebugApp = mOrigDebugApp = debugApp;
            mWaitForDebugger = mOrigWaitForDebugger = waitForDebugger;
            mAlwaysFinishActivities = alwaysFinishActivities;
            // This happens before any activities are started, so we can
            // change mConfiguration in-place.
            mConfiguration.updateFrom(configuration);
            mConfigurationSeq = mConfiguration.seq = 1;
            if (DEBUG_CONFIGURATION) Slog.v(TAG, "Initial config: " + mConfiguration);
        }
    }

    public boolean testIsSystemReady() {
        // no need to synchronize(this) just to read & return the value
        return mSystemReady;
    }
    
    public void systemReady(final Runnable goingCallback) {
        // In the simulator, startRunning will never have been called, which
        // normally sets a few crucial variables. Do it here instead.
        if (!Process.supportsProcesses()) {
            mStartRunning = true;
            mTopAction = Intent.ACTION_MAIN;
        }

        synchronized(this) {
            if (mSystemReady) {
                if (goingCallback != null) goingCallback.run();
                return;
            }
            
            // Check to see if there are any update receivers to run.
            if (!mDidUpdate) {
                if (mWaitingUpdate) {
                    return;
                }
                Intent intent = new Intent(Intent.ACTION_PRE_BOOT_COMPLETED);
                List<ResolveInfo> ris = null;
                try {
                    ris = ActivityThread.getPackageManager().queryIntentReceivers(
                                intent, null, 0);
                } catch (RemoteException e) {
                }
                if (ris != null) {
                    for (int i=ris.size()-1; i>=0; i--) {
                        if ((ris.get(i).activityInfo.applicationInfo.flags
                                &ApplicationInfo.FLAG_SYSTEM) == 0) {
                            ris.remove(i);
                        }
                    }
                    intent.addFlags(Intent.FLAG_RECEIVER_BOOT_UPGRADE);
                    for (int i=0; i<ris.size(); i++) {
                        ActivityInfo ai = ris.get(i).activityInfo;
                        intent.setComponent(new ComponentName(ai.packageName, ai.name));
                        IIntentReceiver finisher = null;
                        if (i == ris.size()-1) {
                            finisher = new IIntentReceiver.Stub() {
                                public void performReceive(Intent intent, int resultCode,
                                        String data, Bundle extras, boolean ordered,
                                        boolean sticky)
                                        throws RemoteException {
                                    synchronized (ActivityManagerService.this) {
                                        mDidUpdate = true;
                                    }
                                    systemReady(goingCallback);
                                }
                            };
                        }
                        Slog.i(TAG, "Sending system update to: " + intent.getComponent());
                        broadcastIntentLocked(null, null, intent, null, finisher,
                                0, null, null, null, true, false, MY_PID, Process.SYSTEM_UID);
                        if (finisher != null) {
                            mWaitingUpdate = true;
                        }
                    }
                }
                if (mWaitingUpdate) {
                    return;
                }
                mDidUpdate = true;
            }
            
            mSystemReady = true;
            if (!mStartRunning) {
                return;
            }
        }

        ArrayList<ProcessRecord> procsToKill = null;
        synchronized(mPidsSelfLocked) {
            for (int i=mPidsSelfLocked.size()-1; i>=0; i--) {
                ProcessRecord proc = mPidsSelfLocked.valueAt(i);
                if (!isAllowedWhileBooting(proc.info)){
                    if (procsToKill == null) {
                        procsToKill = new ArrayList<ProcessRecord>();
                    }
                    procsToKill.add(proc);
                }
            }
        }
        
        if (procsToKill != null) {
            synchronized(this) {
                for (int i=procsToKill.size()-1; i>=0; i--) {
                    ProcessRecord proc = procsToKill.get(i);
                    Slog.i(TAG, "Removing system update proc: " + proc);
                    removeProcessLocked(proc, true);
                }
            }
        }
        
        Slog.i(TAG, "System now ready");
        EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_AMS_READY,
            SystemClock.uptimeMillis());

        synchronized(this) {
            // Make sure we have no pre-ready processes sitting around.
            
            if (mFactoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL) {
                ResolveInfo ri = mContext.getPackageManager()
                        .resolveActivity(new Intent(Intent.ACTION_FACTORY_TEST),
                                STOCK_PM_FLAGS);
                CharSequence errorMsg = null;
                if (ri != null) {
                    ActivityInfo ai = ri.activityInfo;
                    ApplicationInfo app = ai.applicationInfo;
                    if ((app.flags&ApplicationInfo.FLAG_SYSTEM) != 0) {
                        mTopAction = Intent.ACTION_FACTORY_TEST;
                        mTopData = null;
                        mTopComponent = new ComponentName(app.packageName,
                                ai.name);
                    } else {
                        errorMsg = mContext.getResources().getText(
                                com.android.internal.R.string.factorytest_not_system);
                    }
                } else {
                    errorMsg = mContext.getResources().getText(
                            com.android.internal.R.string.factorytest_no_action);
                }
                if (errorMsg != null) {
                    mTopAction = null;
                    mTopData = null;
                    mTopComponent = null;
                    Message msg = Message.obtain();
                    msg.what = SHOW_FACTORY_ERROR_MSG;
                    msg.getData().putCharSequence("msg", errorMsg);
                    mHandler.sendMessage(msg);
                }
            }
        }

        retrieveSettings();

        if (goingCallback != null) goingCallback.run();
        
        synchronized (this) {
            if (mFactoryTest != SystemServer.FACTORY_TEST_LOW_LEVEL) {
                try {
                    List apps = ActivityThread.getPackageManager().
                        getPersistentApplications(STOCK_PM_FLAGS);
                    if (apps != null) {
                        int N = apps.size();
                        int i;
                        for (i=0; i<N; i++) {
                            ApplicationInfo info
                                = (ApplicationInfo)apps.get(i);
                            if (info != null &&
                                    !info.packageName.equals("android")) {
                                addAppLocked(info);
                            }
                        }
                    }
                } catch (RemoteException ex) {
                    // pm is in same process, this will never happen.
                }
            }

            // Start up initial activity.
            mBooting = true;
            
            try {
                if (ActivityThread.getPackageManager().hasSystemUidErrors()) {
                    Message msg = Message.obtain();
                    msg.what = SHOW_UID_ERROR_MSG;
                    mHandler.sendMessage(msg);
                }
            } catch (RemoteException e) {
            }

            resumeTopActivityLocked(null);
        }
    }

    private boolean makeAppCrashingLocked(ProcessRecord app,
            String shortMsg, String longMsg, String stackTrace) {
        app.crashing = true;
        app.crashingReport = generateProcessError(app,
                ActivityManager.ProcessErrorStateInfo.CRASHED, null, shortMsg, longMsg, stackTrace);
        startAppProblemLocked(app);
        app.stopFreezingAllLocked();
        return handleAppCrashLocked(app);
    }

    private void makeAppNotRespondingLocked(ProcessRecord app,
            String activity, String shortMsg, String longMsg) {
        app.notResponding = true;
        app.notRespondingReport = generateProcessError(app,
                ActivityManager.ProcessErrorStateInfo.NOT_RESPONDING,
                activity, shortMsg, longMsg, null);
        startAppProblemLocked(app);
        app.stopFreezingAllLocked();
    }
    
    /**
     * Generate a process error record, suitable for attachment to a ProcessRecord.
     * 
     * @param app The ProcessRecord in which the error occurred.
     * @param condition Crashing, Application Not Responding, etc.  Values are defined in 
     *                      ActivityManager.AppErrorStateInfo
     * @param activity The activity associated with the crash, if known.
     * @param shortMsg Short message describing the crash.
     * @param longMsg Long message describing the crash.
     * @param stackTrace Full crash stack trace, may be null.
     *
     * @return Returns a fully-formed AppErrorStateInfo record.
     */
    private ActivityManager.ProcessErrorStateInfo generateProcessError(ProcessRecord app, 
            int condition, String activity, String shortMsg, String longMsg, String stackTrace) {
        ActivityManager.ProcessErrorStateInfo report = new ActivityManager.ProcessErrorStateInfo();

        report.condition = condition;
        report.processName = app.processName;
        report.pid = app.pid;
        report.uid = app.info.uid;
        report.tag = activity;
        report.shortMsg = shortMsg;
        report.longMsg = longMsg;
        report.stackTrace = stackTrace;

        return report;
    }

    void killAppAtUsersRequest(ProcessRecord app, Dialog fromDialog) {
        synchronized (this) {
            app.crashing = false;
            app.crashingReport = null;
            app.notResponding = false;
            app.notRespondingReport = null;
            if (app.anrDialog == fromDialog) {
                app.anrDialog = null;
            }
            if (app.waitDialog == fromDialog) {
                app.waitDialog = null;
            }
            if (app.pid > 0 && app.pid != MY_PID) {
                handleAppCrashLocked(app);
                Slog.i(ActivityManagerService.TAG, "Killing "
                        + app.processName + " (pid=" + app.pid + "): user's request");
                EventLog.writeEvent(EventLogTags.AM_KILL, app.pid,
                        app.processName, app.setAdj, "user's request after error");
                Process.killProcess(app.pid);
            }
        }
    }

    private boolean handleAppCrashLocked(ProcessRecord app) {
        long now = SystemClock.uptimeMillis();

        Long crashTime = mProcessCrashTimes.get(app.info.processName,
                app.info.uid);
        if (crashTime != null && now < crashTime+MIN_CRASH_INTERVAL) {
            // This process loses!
            Slog.w(TAG, "Process " + app.info.processName
                    + " has crashed too many times: killing!");
            EventLog.writeEvent(EventLogTags.AM_PROCESS_CRASHED_TOO_MUCH,
                    app.info.processName, app.info.uid);
            killServicesLocked(app, false);
            for (int i=mHistory.size()-1; i>=0; i--) {
                HistoryRecord r = (HistoryRecord)mHistory.get(i);
                if (r.app == app) {
                    Slog.w(TAG, "  Force finishing activity "
                        + r.intent.getComponent().flattenToShortString());
                    finishActivityLocked(r, i, Activity.RESULT_CANCELED, null, "crashed");
                }
            }
            if (!app.persistent) {
                // We don't want to start this process again until the user
                // explicitly does so...  but for persistent process, we really
                // need to keep it running.  If a persistent process is actually
                // repeatedly crashing, then badness for everyone.
                EventLog.writeEvent(EventLogTags.AM_PROC_BAD, app.info.uid,
                        app.info.processName);
                mBadProcesses.put(app.info.processName, app.info.uid, now);
                app.bad = true;
                mProcessCrashTimes.remove(app.info.processName, app.info.uid);
                app.removed = true;
                removeProcessLocked(app, false);
                return false;
            }
        } else {
            HistoryRecord r = topRunningActivityLocked(null);
            if (r.app == app) {
                // If the top running activity is from this crashing
                // process, then terminate it to avoid getting in a loop.
                Slog.w(TAG, "  Force finishing activity "
                        + r.intent.getComponent().flattenToShortString());
                int index = indexOfTokenLocked(r);
                finishActivityLocked(r, index,
                        Activity.RESULT_CANCELED, null, "crashed");
                // Also terminate an activities below it that aren't yet
                // stopped, to avoid a situation where one will get
                // re-start our crashing activity once it gets resumed again.
                index--;
                if (index >= 0) {
                    r = (HistoryRecord)mHistory.get(index);
                    if (r.state == ActivityState.RESUMED
                            || r.state == ActivityState.PAUSING
                            || r.state == ActivityState.PAUSED) {
                        if (!r.isHomeActivity) {
                            Slog.w(TAG, "  Force finishing activity "
                                    + r.intent.getComponent().flattenToShortString());
                            finishActivityLocked(r, index,
                                    Activity.RESULT_CANCELED, null, "crashed");
                        }
                    }
                }
            }
        }

        // Bump up the crash count of any services currently running in the proc.
        if (app.services.size() != 0) {
            // Any services running in the application need to be placed
            // back in the pending list.
            Iterator it = app.services.iterator();
            while (it.hasNext()) {
                ServiceRecord sr = (ServiceRecord)it.next();
                sr.crashCount++;
            }
        }

        // If the crashing process is what we consider to be the "home process" and it has been
        // replaced by a third-party app, clear the package preferred activities from packages
        // with a home activity running in the process to prevent a repeatedly crashing app
        // from blocking the user to manually clear the list.
        if (app == mHomeProcess && mHomeProcess.activities.size() > 0
                    && (mHomeProcess.info.flags & ApplicationInfo.FLAG_SYSTEM) == 0) {
            Iterator it = mHomeProcess.activities.iterator();
            while (it.hasNext()) {
                HistoryRecord r = (HistoryRecord)it.next();
                if (r.isHomeActivity) {
                    Log.i(TAG, "Clearing package preferred activities from " + r.packageName);
                    try {
                        ActivityThread.getPackageManager()
                                .clearPackagePreferredActivities(r.packageName);
                    } catch (RemoteException c) {
                        // pm is in same process, this will never happen.
                    }
                }
            }
        }

        mProcessCrashTimes.put(app.info.processName, app.info.uid, now);
        return true;
    }

    void startAppProblemLocked(ProcessRecord app) {
        app.errorReportReceiver = ApplicationErrorReport.getErrorReportReceiver(
                mContext, app.info.packageName, app.info.flags);
        skipCurrentReceiverLocked(app);
    }

    void skipCurrentReceiverLocked(ProcessRecord app) {
        boolean reschedule = false;
        BroadcastRecord r = app.curReceiver;
        if (r != null) {
            // The current broadcast is waiting for this app's receiver
            // to be finished.  Looks like that's not going to happen, so
            // let the broadcast continue.
            logBroadcastReceiverDiscard(r);
            finishReceiverLocked(r.receiver, r.resultCode, r.resultData,
                    r.resultExtras, r.resultAbort, true);
            reschedule = true;
        }
        r = mPendingBroadcast;
        if (r != null && r.curApp == app) {
            if (DEBUG_BROADCAST) Slog.v(TAG,
                    "skip & discard pending app " + r);
            logBroadcastReceiverDiscard(r);
            finishReceiverLocked(r.receiver, r.resultCode, r.resultData,
                    r.resultExtras, r.resultAbort, true);
            reschedule = true;
        }
        if (reschedule) {
            scheduleBroadcastsLocked();
        }
    }

    /**
     * Used by {@link com.android.internal.os.RuntimeInit} to report when an application crashes.
     * The application process will exit immediately after this call returns.
     * @param app object of the crashing app, null for the system server
     * @param crashInfo describing the exception
     */
    public void handleApplicationCrash(IBinder app, ApplicationErrorReport.CrashInfo crashInfo) {
        ProcessRecord r = findAppProcess(app);

        EventLog.writeEvent(EventLogTags.AM_CRASH, Binder.getCallingPid(),
                app == null ? "system" : (r == null ? "unknown" : r.processName),
                r == null ? -1 : r.info.flags,
                crashInfo.exceptionClassName,
                crashInfo.exceptionMessage,
                crashInfo.throwFileName,
                crashInfo.throwLineNumber);

        addErrorToDropBox("crash", r, null, null, null, null, null, crashInfo);

        crashApplication(r, crashInfo);
    }

    /**
     * Used by {@link Log} via {@link com.android.internal.os.RuntimeInit} to report serious errors.
     * @param app object of the crashing app, null for the system server
     * @param tag reported by the caller
     * @param crashInfo describing the context of the error
     * @return true if the process should exit immediately (WTF is fatal)
     */
    public boolean handleApplicationWtf(IBinder app, String tag,
            ApplicationErrorReport.CrashInfo crashInfo) {
        ProcessRecord r = findAppProcess(app);

        EventLog.writeEvent(EventLogTags.AM_WTF, Binder.getCallingPid(),
                app == null ? "system" : (r == null ? "unknown" : r.processName),
                r == null ? -1 : r.info.flags,
                tag, crashInfo.exceptionMessage);

        addErrorToDropBox("wtf", r, null, null, tag, null, null, crashInfo);

        if (Settings.Secure.getInt(mContext.getContentResolver(),
                Settings.Secure.WTF_IS_FATAL, 0) != 0) {
            crashApplication(r, crashInfo);
            return true;
        } else {
            return false;
        }
    }

    /**
     * @param app object of some object (as stored in {@link com.android.internal.os.RuntimeInit})
     * @return the corresponding {@link ProcessRecord} object, or null if none could be found
     */
    private ProcessRecord findAppProcess(IBinder app) {
        if (app == null) {
            return null;
        }

        synchronized (this) {
            for (SparseArray<ProcessRecord> apps : mProcessNames.getMap().values()) {
                final int NA = apps.size();
                for (int ia=0; ia<NA; ia++) {
                    ProcessRecord p = apps.valueAt(ia);
                    if (p.thread != null && p.thread.asBinder() == app) {
                        return p;
                    }
                }
            }

            Slog.w(TAG, "Can't find mystery application: " + app);
            return null;
        }
    }

    /**
     * Write a description of an error (crash, WTF, ANR) to the drop box.
     * @param eventType to include in the drop box tag ("crash", "wtf", etc.)
     * @param process which caused the error, null means the system server
     * @param activity which triggered the error, null if unknown
     * @param parent activity related to the error, null if unknown
     * @param subject line related to the error, null if absent
     * @param report in long form describing the error, null if absent
     * @param logFile to include in the report, null if none
     * @param crashInfo giving an application stack trace, null if absent
     */
    public void addErrorToDropBox(String eventType,
            ProcessRecord process, HistoryRecord activity, HistoryRecord parent, String subject,
            final String report, final File logFile,
            final ApplicationErrorReport.CrashInfo crashInfo) {
        // NOTE -- this must never acquire the ActivityManagerService lock,
        // otherwise the watchdog may be prevented from resetting the system.

        String prefix;
        if (process == null || process.pid == MY_PID) {
            prefix = "system_server_";
        } else if ((process.info.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
            prefix = "system_app_";
        } else {
            prefix = "data_app_";
        }

        final String dropboxTag = prefix + eventType;
        final DropBoxManager dbox = (DropBoxManager)
                mContext.getSystemService(Context.DROPBOX_SERVICE);

        // Exit early if the dropbox isn't configured to accept this report type.
        if (dbox == null || !dbox.isTagEnabled(dropboxTag)) return;

        final StringBuilder sb = new StringBuilder(1024);
        if (process == null || process.pid == MY_PID) {
            sb.append("Process: system_server\n");
        } else {
            sb.append("Process: ").append(process.processName).append("\n");
        }
        if (process != null) {
            int flags = process.info.flags;
            IPackageManager pm = ActivityThread.getPackageManager();
            sb.append("Flags: 0x").append(Integer.toString(flags, 16)).append("\n");
            for (String pkg : process.pkgList) {
                sb.append("Package: ").append(pkg);
                try {
                    PackageInfo pi = pm.getPackageInfo(pkg, 0);
                    if (pi != null) {
                        sb.append(" v").append(pi.versionCode);
                        if (pi.versionName != null) {
                            sb.append(" (").append(pi.versionName).append(")");
                        }
                    }
                } catch (RemoteException e) {
                    Slog.e(TAG, "Error getting package info: " + pkg, e);
                }
                sb.append("\n");
            }
        }
        if (activity != null) {
            sb.append("Activity: ").append(activity.shortComponentName).append("\n");
        }
        if (parent != null && parent.app != null && parent.app.pid != process.pid) {
            sb.append("Parent-Process: ").append(parent.app.processName).append("\n");
        }
        if (parent != null && parent != activity) {
            sb.append("Parent-Activity: ").append(parent.shortComponentName).append("\n");
        }
        if (subject != null) {
            sb.append("Subject: ").append(subject).append("\n");
        }
        sb.append("Build: ").append(Build.FINGERPRINT).append("\n");
        sb.append("\n");

        // Do the rest in a worker thread to avoid blocking the caller on I/O
        // (After this point, we shouldn't access AMS internal data structures.)
        Thread worker = new Thread("Error dump: " + dropboxTag) {
            @Override
            public void run() {
                if (report != null) {
                    sb.append(report);
                }
                if (logFile != null) {
                    try {
                        sb.append(FileUtils.readTextFile(logFile, 128 * 1024, "\n\n[[TRUNCATED]]"));
                    } catch (IOException e) {
                        Slog.e(TAG, "Error reading " + logFile, e);
                    }
                }
                if (crashInfo != null && crashInfo.stackTrace != null) {
                    sb.append(crashInfo.stackTrace);
                }

                String setting = Settings.Secure.ERROR_LOGCAT_PREFIX + dropboxTag;
                int lines = Settings.Secure.getInt(mContext.getContentResolver(), setting, 0);
                if (lines > 0) {
                    sb.append("\n");

                    // Merge several logcat streams, and take the last N lines
                    InputStreamReader input = null;
                    try {
                        java.lang.Process logcat = new ProcessBuilder("/system/bin/logcat",
                                "-v", "time", "-b", "events", "-b", "system", "-b", "main",
                                "-t", String.valueOf(lines)).redirectErrorStream(true).start();

                        try { logcat.getOutputStream().close(); } catch (IOException e) {}
                        try { logcat.getErrorStream().close(); } catch (IOException e) {}
                        input = new InputStreamReader(logcat.getInputStream());

                        int num;
                        char[] buf = new char[8192];
                        while ((num = input.read(buf)) > 0) sb.append(buf, 0, num);
                    } catch (IOException e) {
                        Slog.e(TAG, "Error running logcat", e);
                    } finally {
                        if (input != null) try { input.close(); } catch (IOException e) {}
                    }
                }

                dbox.addText(dropboxTag, sb.toString());
            }
        };

        if (process == null || process.pid == MY_PID) {
            worker.run();  // We may be about to die -- need to run this synchronously
        } else {
            worker.start();
        }
    }

    /**
     * Bring up the "unexpected error" dialog box for a crashing app.
     * Deal with edge cases (intercepts from instrumented applications,
     * ActivityController, error intent receivers, that sort of thing).
     * @param r the application crashing
     * @param crashInfo describing the failure
     */
    private void crashApplication(ProcessRecord r, ApplicationErrorReport.CrashInfo crashInfo) {
        long timeMillis = System.currentTimeMillis();
        String shortMsg = crashInfo.exceptionClassName;
        String longMsg = crashInfo.exceptionMessage;
        String stackTrace = crashInfo.stackTrace;
        if (shortMsg != null && longMsg != null) {
            longMsg = shortMsg + ": " + longMsg;
        } else if (shortMsg != null) {
            longMsg = shortMsg;
        }

        AppErrorResult result = new AppErrorResult();
        synchronized (this) {
            if (mController != null) {
                try {
                    String name = r != null ? r.processName : null;
                    int pid = r != null ? r.pid : Binder.getCallingPid();
                    if (!mController.appCrashed(name, pid,
                            shortMsg, longMsg, timeMillis, crashInfo.stackTrace)) {
                        Slog.w(TAG, "Force-killing crashed app " + name
                                + " at watcher's request");
                        Process.killProcess(pid);
                        return;
                    }
                } catch (RemoteException e) {
                    mController = null;
                }
            }

            final long origId = Binder.clearCallingIdentity();

            // If this process is running instrumentation, finish it.
            if (r != null && r.instrumentationClass != null) {
                Slog.w(TAG, "Error in app " + r.processName
                      + " running instrumentation " + r.instrumentationClass + ":");
                if (shortMsg != null) Slog.w(TAG, "  " + shortMsg);
                if (longMsg != null) Slog.w(TAG, "  " + longMsg);
                Bundle info = new Bundle();
                info.putString("shortMsg", shortMsg);
                info.putString("longMsg", longMsg);
                finishInstrumentationLocked(r, Activity.RESULT_CANCELED, info);
                Binder.restoreCallingIdentity(origId);
                return;
            }

            // If we can't identify the process or it's already exceeded its crash quota,
            // quit right away without showing a crash dialog.
            if (r == null || !makeAppCrashingLocked(r, shortMsg, longMsg, stackTrace)) {
                Binder.restoreCallingIdentity(origId);
                return;
            }

            Message msg = Message.obtain();
            msg.what = SHOW_ERROR_MSG;
            HashMap data = new HashMap();
            data.put("result", result);
            data.put("app", r);
            msg.obj = data;
            mHandler.sendMessage(msg);

            Binder.restoreCallingIdentity(origId);
        }

        int res = result.get();

        Intent appErrorIntent = null;
        synchronized (this) {
            if (r != null) {
                mProcessCrashTimes.put(r.info.processName, r.info.uid,
                        SystemClock.uptimeMillis());
            }
            if (res == AppErrorDialog.FORCE_QUIT_AND_REPORT) {
                appErrorIntent = createAppErrorIntentLocked(r, timeMillis, crashInfo);
            }
        }

        if (appErrorIntent != null) {
            try {
                mContext.startActivity(appErrorIntent);
            } catch (ActivityNotFoundException e) {
                Slog.w(TAG, "bug report receiver dissappeared", e);
            }
        }
    }

    Intent createAppErrorIntentLocked(ProcessRecord r,
            long timeMillis, ApplicationErrorReport.CrashInfo crashInfo) {
        ApplicationErrorReport report = createAppErrorReportLocked(r, timeMillis, crashInfo);
        if (report == null) {
            return null;
        }
        Intent result = new Intent(Intent.ACTION_APP_ERROR);
        result.setComponent(r.errorReportReceiver);
        result.putExtra(Intent.EXTRA_BUG_REPORT, report);
        result.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        return result;
    }

    private ApplicationErrorReport createAppErrorReportLocked(ProcessRecord r,
            long timeMillis, ApplicationErrorReport.CrashInfo crashInfo) {
        if (r.errorReportReceiver == null) {
            return null;
        }

        if (!r.crashing && !r.notResponding) {
            return null;
        }

        ApplicationErrorReport report = new ApplicationErrorReport();
        report.packageName = r.info.packageName;
        report.installerPackageName = r.errorReportReceiver.getPackageName();
        report.processName = r.processName;
        report.time = timeMillis;
        report.systemApp = (r.info.flags & ApplicationInfo.FLAG_SYSTEM) != 0;

        if (r.crashing) {
            report.type = ApplicationErrorReport.TYPE_CRASH;
            report.crashInfo = crashInfo;
        } else if (r.notResponding) {
            report.type = ApplicationErrorReport.TYPE_ANR;
            report.anrInfo = new ApplicationErrorReport.AnrInfo();

            report.anrInfo.activity = r.notRespondingReport.tag;
            report.anrInfo.cause = r.notRespondingReport.shortMsg;
            report.anrInfo.info = r.notRespondingReport.longMsg;
        }

        return report;
    }

    public List<ActivityManager.ProcessErrorStateInfo> getProcessesInErrorState() {
        // assume our apps are happy - lazy create the list
        List<ActivityManager.ProcessErrorStateInfo> errList = null;

        synchronized (this) {

            // iterate across all processes
            for (int i=mLruProcesses.size()-1; i>=0; i--) {
                ProcessRecord app = mLruProcesses.get(i);
                if ((app.thread != null) && (app.crashing || app.notResponding)) {
                    // This one's in trouble, so we'll generate a report for it
                    // crashes are higher priority (in case there's a crash *and* an anr)
                    ActivityManager.ProcessErrorStateInfo report = null;
                    if (app.crashing) {
                        report = app.crashingReport;
                    } else if (app.notResponding) {
                        report = app.notRespondingReport;
                    }
                    
                    if (report != null) {
                        if (errList == null) {
                            errList = new ArrayList<ActivityManager.ProcessErrorStateInfo>(1);
                        }
                        errList.add(report);
                    } else {
                        Slog.w(TAG, "Missing app error report, app = " + app.processName + 
                                " crashing = " + app.crashing +
                                " notResponding = " + app.notResponding);
                    }
                }
            }
        }

        return errList;
    }
    
    public List<ActivityManager.RunningAppProcessInfo> getRunningAppProcesses() {
        // Lazy instantiation of list
        List<ActivityManager.RunningAppProcessInfo> runList = null;
        synchronized (this) {
            // Iterate across all processes
            for (int i=mLruProcesses.size()-1; i>=0; i--) {
                ProcessRecord app = mLruProcesses.get(i);
                if ((app.thread != null) && (!app.crashing && !app.notResponding)) {
                    // Generate process state info for running application
                    ActivityManager.RunningAppProcessInfo currApp = 
                        new ActivityManager.RunningAppProcessInfo(app.processName,
                                app.pid, app.getPackageList());
                    currApp.uid = app.info.uid;
                    int adj = app.curAdj;
                    if (adj >= EMPTY_APP_ADJ) {
                        currApp.importance = ActivityManager.RunningAppProcessInfo.IMPORTANCE_EMPTY;
                    } else if (adj >= HIDDEN_APP_MIN_ADJ) {
                        currApp.importance = ActivityManager.RunningAppProcessInfo.IMPORTANCE_BACKGROUND;
                        currApp.lru = adj - HIDDEN_APP_MIN_ADJ + 1;
                    } else if (adj >= HOME_APP_ADJ) {
                        currApp.importance = ActivityManager.RunningAppProcessInfo.IMPORTANCE_BACKGROUND;
                        currApp.lru = 0;
                    } else if (adj >= SECONDARY_SERVER_ADJ) {
                        currApp.importance = ActivityManager.RunningAppProcessInfo.IMPORTANCE_SERVICE;
                    } else if (adj >= VISIBLE_APP_ADJ) {
                        currApp.importance = ActivityManager.RunningAppProcessInfo.IMPORTANCE_VISIBLE;
                    } else {
                        currApp.importance = ActivityManager.RunningAppProcessInfo.IMPORTANCE_FOREGROUND;
                    }
                    currApp.importanceReasonCode = app.adjTypeCode;
                    if (app.adjSource instanceof ProcessRecord) {
                        currApp.importanceReasonPid = ((ProcessRecord)app.adjSource).pid;
                    } else if (app.adjSource instanceof HistoryRecord) {
                        HistoryRecord r = (HistoryRecord)app.adjSource;
                        if (r.app != null) currApp.importanceReasonPid = r.app.pid;
                    }
                    if (app.adjTarget instanceof ComponentName) {
                        currApp.importanceReasonComponent = (ComponentName)app.adjTarget;
                    }
                    //Slog.v(TAG, "Proc " + app.processName + ": imp=" + currApp.importance
                    //        + " lru=" + currApp.lru);
                    if (runList == null) {
                        runList = new ArrayList<ActivityManager.RunningAppProcessInfo>();
                    }
                    runList.add(currApp);
                }
            }
        }
        return runList;
    }

    public List<ApplicationInfo> getRunningExternalApplications() {
        List<ActivityManager.RunningAppProcessInfo> runningApps = getRunningAppProcesses();
        List<ApplicationInfo> retList = new ArrayList();
        if (runningApps != null && runningApps.size() > 0) {
            Set<String> extList = new HashSet();
            for (ActivityManager.RunningAppProcessInfo app : runningApps) {
                if (app.pkgList != null) {
                    for (String pkg : app.pkgList) {
                        extList.add(pkg);
                    }
                }
            }
            IPackageManager pm = ActivityThread.getPackageManager();
            for (String pkg : extList) {
                try {
                    ApplicationInfo info = pm.getApplicationInfo(pkg, 0);
                    if ((info.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0) {
                        retList.add(info);
                    }
                } catch (RemoteException e) {
                }
            }
        }
        return retList;
    }

    @Override
    protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
        if (checkCallingPermission(android.Manifest.permission.DUMP)
                != PackageManager.PERMISSION_GRANTED) {
            pw.println("Permission Denial: can't dump ActivityManager from from pid="
                    + Binder.getCallingPid()
                    + ", uid=" + Binder.getCallingUid()
                    + " without permission "
                    + android.Manifest.permission.DUMP);
            return;
        }
        
        boolean dumpAll = false;
        
        int opti = 0;
        while (opti < args.length) {
            String opt = args[opti];
            if (opt == null || opt.length() <= 0 || opt.charAt(0) != '-') {
                break;
            }
            opti++;
            if ("-a".equals(opt)) {
                dumpAll = true;
            } else if ("-h".equals(opt)) {
                pw.println("Activity manager dump options:");
                pw.println("  [-a] [-h] [cmd] ...");
                pw.println("  cmd may be one of:");
                pw.println("    activities: activity stack state");
                pw.println("    broadcasts: broadcast state");
                pw.println("    intents: pending intent state");
                pw.println("    processes: process state");
                pw.println("    providers: content provider state");
                pw.println("    services: service state");
                pw.println("    service [name]: service client-side state");
                return;
            } else {
                pw.println("Unknown argument: " + opt + "; use -h for help");
            }
        }
        
        // Is the caller requesting to dump a particular piece of data?
        if (opti < args.length) {
            String cmd = args[opti];
            opti++;
            if ("activities".equals(cmd) || "a".equals(cmd)) {
                synchronized (this) {
                    dumpActivitiesLocked(fd, pw, args, opti, true, true);
                }
                return;
            } else if ("broadcasts".equals(cmd) || "b".equals(cmd)) {
                synchronized (this) {
                    dumpBroadcastsLocked(fd, pw, args, opti, true);
                }
                return;
            } else if ("intents".equals(cmd) || "i".equals(cmd)) {
                synchronized (this) {
                    dumpPendingIntentsLocked(fd, pw, args, opti, true);
                }
                return;
            } else if ("processes".equals(cmd) || "p".equals(cmd)) {
                synchronized (this) {
                    dumpProcessesLocked(fd, pw, args, opti, true);
                }
                return;
            } else if ("providers".equals(cmd) || "prov".equals(cmd)) {
                synchronized (this) {
                    dumpProvidersLocked(fd, pw, args, opti, true);
                }
                return;
            } else if ("service".equals(cmd)) {
                dumpService(fd, pw, args, opti, true);
                return;
            } else if ("services".equals(cmd) || "s".equals(cmd)) {
                synchronized (this) {
                    dumpServicesLocked(fd, pw, args, opti, true);
                }
                return;
            }
        }
        
        // No piece of data specified, dump everything.
        synchronized (this) {
            boolean needSep;
            if (dumpAll) {
                pw.println("Providers in Current Activity Manager State:");
            }
            needSep = dumpProvidersLocked(fd, pw, args, opti, dumpAll);
            if (needSep) {
                pw.println(" ");
            }
            if (dumpAll) {
                pw.println("-------------------------------------------------------------------------------");
                pw.println("Broadcasts in Current Activity Manager State:");
            }
            needSep = dumpBroadcastsLocked(fd, pw, args, opti, dumpAll);
            if (needSep) {
                pw.println(" ");
            }
            if (dumpAll) {
                pw.println("-------------------------------------------------------------------------------");
                pw.println("Services in Current Activity Manager State:");
            }
            needSep = dumpServicesLocked(fd, pw, args, opti, dumpAll);
            if (needSep) {
                pw.println(" ");
            }
            if (dumpAll) {
                pw.println("-------------------------------------------------------------------------------");
                pw.println("PendingIntents in Current Activity Manager State:");
            }
            needSep = dumpPendingIntentsLocked(fd, pw, args, opti, dumpAll);
            if (needSep) {
                pw.println(" ");
            }
            if (dumpAll) {
                pw.println("-------------------------------------------------------------------------------");
                pw.println("Activities in Current Activity Manager State:");
            }
            needSep = dumpActivitiesLocked(fd, pw, args, opti, dumpAll, !dumpAll);
            if (needSep) {
                pw.println(" ");
            }
            if (dumpAll) {
                pw.println("-------------------------------------------------------------------------------");
                pw.println("Processes in Current Activity Manager State:");
            }
            dumpProcessesLocked(fd, pw, args, opti, dumpAll);
        }
    }
    
    boolean dumpActivitiesLocked(FileDescriptor fd, PrintWriter pw, String[] args,
            int opti, boolean dumpAll, boolean needHeader) {
        if (needHeader) {
            pw.println("  Activity stack:");
        }
        dumpHistoryList(pw, mHistory, "  ", "Hist", true);
        pw.println(" ");
        pw.println("  Running activities (most recent first):");
        dumpHistoryList(pw, mLRUActivities, "  ", "Run", false);
        if (mWaitingVisibleActivities.size() > 0) {
            pw.println(" ");
            pw.println("  Activities waiting for another to become visible:");
            dumpHistoryList(pw, mWaitingVisibleActivities, "  ", "Wait", false);
        }
        if (mStoppingActivities.size() > 0) {
            pw.println(" ");
            pw.println("  Activities waiting to stop:");
            dumpHistoryList(pw, mStoppingActivities, "  ", "Stop", false);
        }
        if (mFinishingActivities.size() > 0) {
            pw.println(" ");
            pw.println("  Activities waiting to finish:");
            dumpHistoryList(pw, mFinishingActivities, "  ", "Fin", false);
        }

        pw.println(" ");
        pw.println("  mPausingActivity: " + mPausingActivity);
        pw.println("  mResumedActivity: " + mResumedActivity);
        pw.println("  mFocusedActivity: " + mFocusedActivity);
        pw.println("  mLastPausedActivity: " + mLastPausedActivity);

        if (dumpAll && mRecentTasks.size() > 0) {
            pw.println(" ");
            pw.println("Recent tasks in Current Activity Manager State:");

            final int N = mRecentTasks.size();
            for (int i=0; i<N; i++) {
                TaskRecord tr = mRecentTasks.get(i);
                pw.print("  * Recent #"); pw.print(i); pw.print(": ");
                        pw.println(tr);
                mRecentTasks.get(i).dump(pw, "    ");
            }
        }
        
        pw.println(" ");
        pw.println("  mCurTask: " + mCurTask);
        
        return true;
    }
        
    boolean dumpProcessesLocked(FileDescriptor fd, PrintWriter pw, String[] args,
            int opti, boolean dumpAll) {
        boolean needSep = false;
        int numPers = 0;

        if (dumpAll) {
            for (SparseArray<ProcessRecord> procs : mProcessNames.getMap().values()) {
                final int NA = procs.size();
                for (int ia=0; ia<NA; ia++) {
                    if (!needSep) {
                        pw.println("  All known processes:");
                        needSep = true;
                    }
                    ProcessRecord r = procs.valueAt(ia);
                    pw.print(r.persistent ? "  *PERS*" : "  *APP*");
                        pw.print(" UID "); pw.print(procs.keyAt(ia));
                        pw.print(" "); pw.println(r);
                    r.dump(pw, "    ");
                    if (r.persistent) {
                        numPers++;
                    }
                }
            }
        }
        
        if (mLruProcesses.size() > 0) {
            if (needSep) pw.println(" ");
            needSep = true;
            pw.println("  Running processes (most recent first):");
            dumpProcessList(pw, this, mLruProcesses, "    ",
                    "App ", "PERS", true);
            needSep = true;
        }

        synchronized (mPidsSelfLocked) {
            if (mPidsSelfLocked.size() > 0) {
                if (needSep) pw.println(" ");
                needSep = true;
                pw.println("  PID mappings:");
                for (int i=0; i<mPidsSelfLocked.size(); i++) {
                    pw.print("    PID #"); pw.print(mPidsSelfLocked.keyAt(i));
                        pw.print(": "); pw.println(mPidsSelfLocked.valueAt(i));
                }
            }
        }
        
        if (mForegroundProcesses.size() > 0) {
            if (needSep) pw.println(" ");
            needSep = true;
            pw.println("  Foreground Processes:");
            for (int i=0; i<mForegroundProcesses.size(); i++) {
                pw.print("    PID #"); pw.print(mForegroundProcesses.keyAt(i));
                        pw.print(": "); pw.println(mForegroundProcesses.valueAt(i));
            }
        }
        
        if (mPersistentStartingProcesses.size() > 0) {
            if (needSep) pw.println(" ");
            needSep = true;
            pw.println("  Persisent processes that are starting:");
            dumpProcessList(pw, this, mPersistentStartingProcesses, "    ",
                    "Starting Norm", "Restarting PERS", false);
        }

        if (mStartingProcesses.size() > 0) {
            if (needSep) pw.println(" ");
            needSep = true;
            pw.println("  Processes that are starting:");
            dumpProcessList(pw, this, mStartingProcesses, "    ",
                    "Starting Norm", "Starting PERS", false);
        }

        if (mRemovedProcesses.size() > 0) {
            if (needSep) pw.println(" ");
            needSep = true;
            pw.println("  Processes that are being removed:");
            dumpProcessList(pw, this, mRemovedProcesses, "    ",
                    "Removed Norm", "Removed PERS", false);
        }
        
        if (mProcessesOnHold.size() > 0) {
            if (needSep) pw.println(" ");
            needSep = true;
            pw.println("  Processes that are on old until the system is ready:");
            dumpProcessList(pw, this, mProcessesOnHold, "    ",
                    "OnHold Norm", "OnHold PERS", false);
        }

        if (mProcessesToGc.size() > 0) {
            if (needSep) pw.println(" ");
            needSep = true;
            pw.println("  Processes that are waiting to GC:");
            long now = SystemClock.uptimeMillis();
            for (int i=0; i<mProcessesToGc.size(); i++) {
                ProcessRecord proc = mProcessesToGc.get(i);
                pw.print("    Process "); pw.println(proc);
                pw.print("      lowMem="); pw.print(proc.reportLowMemory);
                        pw.print(", last gced=");
                        pw.print(now-proc.lastRequestedGc);
                        pw.print(" ms ago, last lowMem=");
                        pw.print(now-proc.lastLowMemory);
                        pw.println(" ms ago");
                
            }
        }
        
        if (mProcessCrashTimes.getMap().size() > 0) {
            if (needSep) pw.println(" ");
            needSep = true;
            pw.println("  Time since processes crashed:");
            long now = SystemClock.uptimeMillis();
            for (Map.Entry<String, SparseArray procs
                    : mProcessCrashTimes.getMap().entrySet()) {
                SparseArray<Long> uids = procs.getValue();
                final int N = uids.size();
                for (int i=0; i<N; i++) {
                    pw.print("    Process "); pw.print(procs.getKey());
                            pw.print(" uid "); pw.print(uids.keyAt(i));
                            pw.print(": last crashed ");
                            pw.print((now-uids.valueAt(i)));
                            pw.println(" ms ago");
                }
            }
        }

        if (mBadProcesses.getMap().size() > 0) {
            if (needSep) pw.println(" ");
            needSep = true;
            pw.println("  Bad processes:");
            for (Map.Entry<String, SparseArray procs
                    : mBadProcesses.getMap().entrySet()) {
                SparseArray<Long> uids = procs.getValue();
                final int N = uids.size();
                for (int i=0; i<N; i++) {
                    pw.print("    Bad process "); pw.print(procs.getKey());
                            pw.print(" uid "); pw.print(uids.keyAt(i));
                            pw.print(": crashed at time ");
                            pw.println(uids.valueAt(i));
                }
            }
        }

        pw.println(" ");
        pw.println("  mHomeProcess: " + mHomeProcess);
        pw.println("  mConfiguration: " + mConfiguration);
        pw.println("  mConfigWillChange: " + mConfigWillChange);
        pw.println("  mSleeping=" + mSleeping + " mShuttingDown=" + mShuttingDown);
        if (mDebugApp != null || mOrigDebugApp != null || mDebugTransient
                || mOrigWaitForDebugger) {
            pw.println("  mDebugApp=" + mDebugApp + "/orig=" + mOrigDebugApp
                    + " mDebugTransient=" + mDebugTransient
                    + " mOrigWaitForDebugger=" + mOrigWaitForDebugger);
        }
        if (mAlwaysFinishActivities || mController != null) {
            pw.println("  mAlwaysFinishActivities=" + mAlwaysFinishActivities
                    + " mController=" + mController);
        }
        if (dumpAll) {
            pw.println("  Total persistent processes: " + numPers);
            pw.println("  mStartRunning=" + mStartRunning
                    + " mSystemReady=" + mSystemReady
                    + " mBooting=" + mBooting
                    + " mBooted=" + mBooted
                    + " mFactoryTest=" + mFactoryTest);
            pw.println("  mGoingToSleep=" + mGoingToSleep);
            pw.println("  mLaunchingActivity=" + mLaunchingActivity);
            pw.println("  mAdjSeq=" + mAdjSeq + " mLruSeq=" + mLruSeq);
        }
        
        return true;
    }

    /**
     * There are three ways to call this:
     *  - no service specified: dump all the services
     *  - a flattened component name that matched an existing service was specified as the
     *    first arg: dump that one service
     *  - the first arg isn't the flattened component name of an existing service:
     *    dump all services whose component contains the first arg as a substring
     */
    protected void dumpService(FileDescriptor fd, PrintWriter pw, String[] args,
            int opti, boolean dumpAll) {
        String[] newArgs;
        String componentNameString;
        ServiceRecord r;
        if (opti >= args.length) {
            componentNameString = null;
            newArgs = EMPTY_STRING_ARRAY;
            r = null;
        } else {
            componentNameString = args[opti];
            opti++;
            ComponentName componentName = ComponentName.unflattenFromString(componentNameString);
            r = componentName != null ? mServices.get(componentName) : null;
            newArgs = new String[args.length - opti];
            if (args.length > 2) System.arraycopy(args, opti, newArgs, 0, args.length - opti);
        }

        if (r != null) {
            dumpService(fd, pw, r, newArgs);
        } else {
            for (ServiceRecord r1 : mServices.values()) {
                if (componentNameString == null
                        || r1.name.flattenToString().contains(componentNameString)) {
                    dumpService(fd, pw, r1, newArgs);
                }
            }
        }
    }

    /**
     * Invokes IApplicationThread.dumpService() on the thread of the specified service if
     * there is a thread associated with the service.
     */
    private void dumpService(FileDescriptor fd, PrintWriter pw, ServiceRecord r, String[] args) {
        pw.println("  Service " + r.name.flattenToString());
        if (r.app != null && r.app.thread != null) {
            try {
                // flush anything that is already in the PrintWriter since the thread is going
                // to write to the file descriptor directly
                pw.flush();
                r.app.thread.dumpService(fd, r, args);
                pw.print("\n");
            } catch (RemoteException e) {
                pw.println("got a RemoteException while dumping the service");
            }
        }
    }

    boolean dumpBroadcastsLocked(FileDescriptor fd, PrintWriter pw, String[] args,
            int opti, boolean dumpAll) {
        boolean needSep = false;
        
        if (dumpAll) {
            if (mRegisteredReceivers.size() > 0) {
                pw.println(" ");
                pw.println("  Registered Receivers:");
                Iterator it = mRegisteredReceivers.values().iterator();
                while (it.hasNext()) {
                    ReceiverList r = (ReceiverList)it.next();
                    pw.print("  * "); pw.println(r);
                    r.dump(pw, "    ");
                }
            }
    
            pw.println(" ");
            pw.println("Receiver Resolver Table:");
            mReceiverResolver.dump(pw, null, "  ", null);
            needSep = true;
        }
        
        if (mParallelBroadcasts.size() > 0 || mOrderedBroadcasts.size() > 0
                || mPendingBroadcast != null) {
            if (mParallelBroadcasts.size() > 0) {
                pw.println(" ");
                pw.println("  Active broadcasts:");
            }
            for (int i=mParallelBroadcasts.size()-1; i>=0; i--) {
                pw.println("  Broadcast #" + i + ":");
                mParallelBroadcasts.get(i).dump(pw, "    ");
            }
            if (mOrderedBroadcasts.size() > 0) {
                pw.println(" ");
                pw.println("  Active ordered broadcasts:");
            }
            for (int i=mOrderedBroadcasts.size()-1; i>=0; i--) {
                pw.println("  Serialized Broadcast #" + i + ":");
                mOrderedBroadcasts.get(i).dump(pw, "    ");
            }
            pw.println(" ");
            pw.println("  Pending broadcast:");
            if (mPendingBroadcast != null) {
                mPendingBroadcast.dump(pw, "    ");
            } else {
                pw.println("    (null)");
            }
            needSep = true;
        }

        if (dumpAll) {
            pw.println(" ");
            pw.println("  Historical broadcasts:");
            for (int i=0; i<MAX_BROADCAST_HISTORY; i++) {
                BroadcastRecord r = mBroadcastHistory[i];
                if (r == null) {
                    break;
                }
                pw.println("  Historical Broadcast #" + i + ":");
                r.dump(pw, "    ");
            }
            needSep = true;
        }
        
        if (mStickyBroadcasts != null) {
            pw.println(" ");
            pw.println("  Sticky broadcasts:");
            StringBuilder sb = new StringBuilder(128);
            for (Map.Entry<String, ArrayList ent
                    : mStickyBroadcasts.entrySet()) {
                pw.print("  * Sticky action "); pw.print(ent.getKey());
                        pw.println(":");
                ArrayList<Intent> intents = ent.getValue();
                final int N = intents.size();
                for (int i=0; i<N; i++) {
                    sb.setLength(0);
                    sb.append("    Intent: ");
                    intents.get(i).toShortString(sb, true, false);
                    pw.println(sb.toString());
                    Bundle bundle = intents.get(i).getExtras();
                    if (bundle != null) {
                        pw.print("      ");
                        pw.println(bundle.toString());
                    }
                }
            }
            needSep = true;
        }
        
        if (dumpAll) {
            pw.println(" ");
            pw.println("  mBroadcastsScheduled=" + mBroadcastsScheduled);
            pw.println("  mHandler:");
            mHandler.dump(new PrintWriterPrinter(pw), "    ");
            needSep = true;
        }
        
        return needSep;
    }

    boolean dumpServicesLocked(FileDescriptor fd, PrintWriter pw, String[] args,
            int opti, boolean dumpAll) {
        boolean needSep = false;

        if (dumpAll) {
            if (mServices.size() > 0) {
                pw.println("  Active services:");
                Iterator<ServiceRecord> it = mServices.values().iterator();
                while (it.hasNext()) {
                    ServiceRecord r = it.next();
                    pw.print("  * "); pw.println(r);
                    r.dump(pw, "    ");
                }
                needSep = true;
            }
        }

        if (mPendingServices.size() > 0) {
            if (needSep) pw.println(" ");
            pw.println("  Pending services:");
            for (int i=0; i<mPendingServices.size(); i++) {
                ServiceRecord r = mPendingServices.get(i);
                pw.print("  * Pending "); pw.println(r);
                r.dump(pw, "    ");
            }
            needSep = true;
        }

        if (mRestartingServices.size() > 0) {
            if (needSep) pw.println(" ");
            pw.println("  Restarting services:");
            for (int i=0; i<mRestartingServices.size(); i++) {
                ServiceRecord r = mRestartingServices.get(i);
                pw.print("  * Restarting "); pw.println(r);
                r.dump(pw, "    ");
            }
            needSep = true;
        }

        if (mStoppingServices.size() > 0) {
            if (needSep) pw.println(" ");
            pw.println("  Stopping services:");
            for (int i=0; i<mStoppingServices.size(); i++) {
                ServiceRecord r = mStoppingServices.get(i);
                pw.print("  * Stopping "); pw.println(r);
                r.dump(pw, "    ");
            }
            needSep = true;
        }

        if (dumpAll) {
            if (mServiceConnections.size() > 0) {
                if (needSep) pw.println(" ");
                pw.println("  Connection bindings to services:");
                Iterator<ConnectionRecord> it
                        = mServiceConnections.values().iterator();
                while (it.hasNext()) {
                    ConnectionRecord r = it.next();
                    pw.print("  * "); pw.println(r);
                    r.dump(pw, "    ");
                }
                needSep = true;
            }
        }
        
        return needSep;
    }

    boolean dumpProvidersLocked(FileDescriptor fd, PrintWriter pw, String[] args,
            int opti, boolean dumpAll) {
        boolean needSep = false;

        if (dumpAll) {
            if (mProvidersByClass.size() > 0) {
                if (needSep) pw.println(" ");
                pw.println("  Published content providers (by class):");
                Iterator it = mProvidersByClass.entrySet().iterator();
                while (it.hasNext()) {
                    Map.Entry e = (Map.Entry)it.next();
                    ContentProviderRecord r = (ContentProviderRecord)e.getValue();
                    pw.print("  * "); pw.println(r);
                    r.dump(pw, "    ");
                }
                needSep = true;
            }
    
            if (mProvidersByName.size() > 0) {
                pw.println(" ");
                pw.println("  Authority to provider mappings:");
                Iterator it = mProvidersByName.entrySet().iterator();
                while (it.hasNext()) {
                    Map.Entry e = (Map.Entry)it.next();
                    ContentProviderRecord r = (ContentProviderRecord)e.getValue();
                    pw.print("  "); pw.print(e.getKey()); pw.print(": ");
                            pw.println(r);
                }
                needSep = true;
            }
        }

        if (mLaunchingProviders.size() > 0) {
            if (needSep) pw.println(" ");
            pw.println("  Launching content providers:");
            for (int i=mLaunchingProviders.size()-1; i>=0; i--) {
                pw.print("  Launching #"); pw.print(i); pw.print(": ");
                        pw.println(mLaunchingProviders.get(i));
            }
            needSep = true;
        }

        if (mGrantedUriPermissions.size() > 0) {
            pw.println();
            pw.println("Granted Uri Permissions:");
            for (int i=0; i<mGrantedUriPermissions.size(); i++) {
                int uid = mGrantedUriPermissions.keyAt(i);
                HashMap<Uri, UriPermission> perms
                        = mGrantedUriPermissions.valueAt(i);
                pw.print("  * UID "); pw.print(uid);
                        pw.println(" holds:");
                for (UriPermission perm : perms.values()) {
                    pw.print("    "); pw.println(perm);
                    perm.dump(pw, "      ");
                }
            }
            needSep = true;
        }
        
        return needSep;
    }

    boolean dumpPendingIntentsLocked(FileDescriptor fd, PrintWriter pw, String[] args,
            int opti, boolean dumpAll) {
        boolean needSep = false;
        
        if (dumpAll) {
            if (this.mIntentSenderRecords.size() > 0) {
                Iterator<WeakReference it
                        = mIntentSenderRecords.values().iterator();
                while (it.hasNext()) {
                    WeakReference<PendingIntentRecord> ref = it.next();
                    PendingIntentRecord rec = ref != null ? ref.get(): null;
                    needSep = true;
                    if (rec != null) {
                        pw.print("  * "); pw.println(rec);
                        rec.dump(pw, "    ");
                    } else {
                        pw.print("  * "); pw.print(ref);
                    }
                }
            }
        }
        
        return needSep;
    }

    private static final void dumpHistoryList(PrintWriter pw, List list,
            String prefix, String label, boolean complete) {
        TaskRecord lastTask = null;
        for (int i=list.size()-1; i>=0; i--) {
            HistoryRecord r = (HistoryRecord)list.get(i);
            final boolean full = complete || !r.inHistory;
            if (lastTask != r.task) {
                lastTask = r.task;
                pw.print(prefix);
                pw.print(full ? "* " : "  ");
                pw.println(lastTask);
                if (full) {
                    lastTask.dump(pw, prefix + "  ");
                }
            }
            pw.print(prefix); pw.print(full ? "  * " : "    "); pw.print(label);
            pw.print(" #"); pw.print(i); pw.print(": ");
            pw.println(r);
            if (full) {
                r.dump(pw, prefix + "      ");
            }
        }
    }

    private static String buildOomTag(String prefix, String space, int val, int base) {
        if (val == base) {
            if (space == null) return prefix;
            return prefix + "  ";
        }
        return prefix + "+" + Integer.toString(val-base);
    }
    
    private static final int dumpProcessList(PrintWriter pw,
            ActivityManagerService service, List list,
            String prefix, String normalLabel, String persistentLabel,
            boolean inclOomAdj) {
        int numPers = 0;
        for (int i=list.size()-1; i>=0; i--) {
            ProcessRecord r = (ProcessRecord)list.get(i);
            if (false) {
                pw.println(prefix + (r.persistent ? persistentLabel : normalLabel)
                      + " #" + i + ":");
                r.dump(pw, prefix + "  ");
            } else if (inclOomAdj) {
                String oomAdj;
                if (r.setAdj >= EMPTY_APP_ADJ) {
                    oomAdj = buildOomTag("empty", null, r.setAdj, EMPTY_APP_ADJ);
                } else if (r.setAdj >= HIDDEN_APP_MIN_ADJ) {
                    oomAdj = buildOomTag("bak", "  ", r.setAdj, HIDDEN_APP_MIN_ADJ);
                } else if (r.setAdj >= HOME_APP_ADJ) {
                    oomAdj = buildOomTag("home ", null, r.setAdj, HOME_APP_ADJ);
                } else if (r.setAdj >= SECONDARY_SERVER_ADJ) {
                    oomAdj = buildOomTag("svc", "  ", r.setAdj, SECONDARY_SERVER_ADJ);
                } else if (r.setAdj >= BACKUP_APP_ADJ) {
                    oomAdj = buildOomTag("bckup", null, r.setAdj, BACKUP_APP_ADJ);
                } else if (r.setAdj >= VISIBLE_APP_ADJ) {
                    oomAdj = buildOomTag("vis  ", null, r.setAdj, VISIBLE_APP_ADJ);
                } else if (r.setAdj >= FOREGROUND_APP_ADJ) {
                    oomAdj = buildOomTag("fore ", null, r.setAdj, FOREGROUND_APP_ADJ);
                } else if (r.setAdj >= CORE_SERVER_ADJ) {
                    oomAdj = buildOomTag("core ", null, r.setAdj, CORE_SERVER_ADJ);
                } else if (r.setAdj >= SYSTEM_ADJ) {
                    oomAdj = buildOomTag("sys  ", null, r.setAdj, SYSTEM_ADJ);
                } else {
                    oomAdj = Integer.toString(r.setAdj);
                }
                String schedGroup;
                switch (r.setSchedGroup) {
                    case Process.THREAD_GROUP_BG_NONINTERACTIVE:
                        schedGroup = "B";
                        break;
                    case Process.THREAD_GROUP_DEFAULT:
                        schedGroup = "F";
                        break;
                    default:
                        schedGroup = Integer.toString(r.setSchedGroup);
                        break;
                }
                pw.println(String.format("%s%s #%2d: adj=%s/%s %s (%s)",
                        prefix, (r.persistent ? persistentLabel : normalLabel),
                        i, oomAdj, schedGroup, r.toShortString(), r.adjType));
                if (r.adjSource != null || r.adjTarget != null) {
                    pw.println(prefix + "          " + r.adjTarget
                            + "<=" + r.adjSource);
                }
            } else {
                pw.println(String.format("%s%s #%2d: %s",
                        prefix, (r.persistent ? persistentLabel : normalLabel),
                        i, r.toString()));
            }
            if (r.persistent) {
                numPers++;
            }
        }
        return numPers;
    }

    static final void dumpApplicationMemoryUsage(FileDescriptor fd,
            PrintWriter pw, List list, String prefix, String[] args) {
        final boolean isCheckinRequest = scanArgs(args, "--checkin");
        long uptime = SystemClock.uptimeMillis();
        long realtime = SystemClock.elapsedRealtime();
        
        if (isCheckinRequest) {
            // short checkin version
            pw.println(uptime + "," + realtime);
            pw.flush();
        } else {
            pw.println("Applications Memory Usage (kB):");
            pw.println("Uptime: " + uptime + " Realtime: " + realtime);
        }
        for (int i = list.size() - 1 ; i >= 0 ; i--) {
            ProcessRecord r = (ProcessRecord)list.get(i);
            if (r.thread != null) {
                if (!isCheckinRequest) {
                    pw.println("\n** MEMINFO in pid " + r.pid + " [" + r.processName + "] **");
                    pw.flush();
                }
                try {
                    r.thread.asBinder().dump(fd, args);
                } catch (RemoteException e) {
                    if (!isCheckinRequest) {
                        pw.println("Got RemoteException!");
                        pw.flush();
                    }
                }
            }
        }
    }

    /**
     * Searches array of arguments for the specified string
     * @param args array of argument strings
     * @param value value to search for
     * @return true if the value is contained in the array
     */
    private static boolean scanArgs(String[] args, String value) {
        if (args != null) {
            for (String arg : args) {
                if (value.equals(arg)) {
                    return true;
                }
            }
        }
        return false;
    }

    private final int indexOfTokenLocked(IBinder token) {
        int count = mHistory.size();

        // convert the token to an entry in the history.
        int index = -1;
        for (int i=count-1; i>=0; i--) {
            Object o = mHistory.get(i);
            if (o == token) {
                index = i;
                break;
            }
        }

        return index;
    }

    private final void killServicesLocked(ProcessRecord app,
            boolean allowRestart) {
        // Report disconnected services.
        if (false) {
            // XXX we are letting the client link to the service for
            // death notifications.
            if (app.services.size() > 0) {
                Iterator it = app.services.iterator();
                while (it.hasNext()) {
                    ServiceRecord r = (ServiceRecord)it.next();
                    if (r.connections.size() > 0) {
                        Iterator<ConnectionRecord> jt
                                = r.connections.values().iterator();
                        while (jt.hasNext()) {
                            ConnectionRecord c = jt.next();
                            if (c.binding.client != app) {
                                try {
                                    //c.conn.connected(r.className, null);
                                } catch (Exception e) {
                                    // todo: this should be asynchronous!
                                    Slog.w(TAG, "Exception thrown disconnected servce "
                                          + r.shortName
                                          + " from app " + app.processName, e);
                                }
                            }
                        }
                    }
                }
            }
        }

        // Clean up any connections this application has to other services.
        if (app.connections.size() > 0) {
            Iterator<ConnectionRecord> it = app.connections.iterator();
            while (it.hasNext()) {
                ConnectionRecord r = it.next();
                removeConnectionLocked(r, app, null);
            }
        }
        app.connections.clear();

        if (app.services.size() != 0) {
            // Any services running in the application need to be placed
            // back in the pending list.
            Iterator it = app.services.iterator();
            while (it.hasNext()) {
                ServiceRecord sr = (ServiceRecord)it.next();
                synchronized (sr.stats.getBatteryStats()) {
                    sr.stats.stopLaunchedLocked();
                }
                sr.app = null;
                sr.executeNesting = 0;
                mStoppingServices.remove(sr);
                
                boolean hasClients = sr.bindings.size() > 0;
                if (hasClients) {
                    Iterator<IntentBindRecord> bindings
                            = sr.bindings.values().iterator();
                    while (bindings.hasNext()) {
                        IntentBindRecord b = bindings.next();
                        if (DEBUG_SERVICE) Slog.v(TAG, "Killing binding " + b
                                + ": shouldUnbind=" + b.hasBound);
                        b.binder = null;
                        b.requested = b.received = b.hasBound = false;
                    }
                }

                if (sr.crashCount >= 2) {
                    Slog.w(TAG, "Service crashed " + sr.crashCount
                            + " times, stopping: " + sr);
                    EventLog.writeEvent(EventLogTags.AM_SERVICE_CRASHED_TOO_MUCH,
                            sr.crashCount, sr.shortName, app.pid);
                    bringDownServiceLocked(sr, true);
                } else if (!allowRestart) {
                    bringDownServiceLocked(sr, true);
                } else {
                    boolean canceled = scheduleServiceRestartLocked(sr, true);
                    
                    // Should the service remain running?  Note that in the
                    // extreme case of so many attempts to deliver a command
                    // that it failed, that we also will stop it here.
                    if (sr.startRequested && (sr.stopIfKilled || canceled)) {
                        if (sr.pendingStarts.size() == 0) {
                            sr.startRequested = false;
                            if (!hasClients) {
                                // Whoops, no reason to restart!
                                bringDownServiceLocked(sr, true);
                            }
                        }
                    }
                }
            }

            if (!allowRestart) {
                app.services.clear();
            }
        }

        // Make sure we have no more records on the stopping list.
        int i = mStoppingServices.size();
        while (i > 0) {
            i--;
            ServiceRecord sr = mStoppingServices.get(i);
            if (sr.app == app) {
                mStoppingServices.remove(i);
            }
        }
        
        app.executingServices.clear();
    }

    private final void removeDyingProviderLocked(ProcessRecord proc,
            ContentProviderRecord cpr) {
        synchronized (cpr) {
            cpr.launchingApp = null;
            cpr.notifyAll();
        }
        
        mProvidersByClass.remove(cpr.info.name);
        String names[] = cpr.info.authority.split(";");
        for (int j = 0; j < names.length; j++) {
            mProvidersByName.remove(names[j]);
        }
        
        Iterator<ProcessRecord> cit = cpr.clients.iterator();
        while (cit.hasNext()) {
            ProcessRecord capp = cit.next();
            if (!capp.persistent && capp.thread != null
                    && capp.pid != 0
                    && capp.pid != MY_PID) {
                Slog.i(TAG, "Kill " + capp.processName
                        + " (pid " + capp.pid + "): provider " + cpr.info.name
                        + " in dying process " + proc.processName);
                EventLog.writeEvent(EventLogTags.AM_KILL, capp.pid,
                        capp.processName, capp.setAdj, "dying provider " + proc.processName);
                Process.killProcess(capp.pid);
            }
        }
        
        mLaunchingProviders.remove(cpr);
    }
    
    /**
     * Main code for cleaning up a process when it has gone away.  This is
     * called both as a result of the process dying, or directly when stopping 
     * a process when running in single process mode.
     */
    private final void cleanUpApplicationRecordLocked(ProcessRecord app,
            boolean restarting, int index) {
        if (index >= 0) {
            mLruProcesses.remove(index);
        }

        mProcessesToGc.remove(app);
        
        // Dismiss any open dialogs.
        if (app.crashDialog != null) {
            app.crashDialog.dismiss();
            app.crashDialog = null;
        }
        if (app.anrDialog != null) {
            app.anrDialog.dismiss();
            app.anrDialog = null;
        }
        if (app.waitDialog != null) {
            app.waitDialog.dismiss();
            app.waitDialog = null;
        }

        app.crashing = false;
        app.notResponding = false;
        
        app.resetPackageList();
        app.thread = null;
        app.forcingToForeground = null;
        app.foregroundServices = false;

        killServicesLocked(app, true);

        boolean restart = false;

        int NL = mLaunchingProviders.size();
        
        // Remove published content providers.
        if (!app.pubProviders.isEmpty()) {
            Iterator it = app.pubProviders.values().iterator();
            while (it.hasNext()) {
                ContentProviderRecord cpr = (ContentProviderRecord)it.next();
                cpr.provider = null;
                cpr.app = null;

                // See if someone is waiting for this provider...  in which
                // case we don't remove it, but just let it restart.
                int i = 0;
                if (!app.bad) {
                    for (; i<NL; i++) {
                        if (mLaunchingProviders.get(i) == cpr) {
                            restart = true;
                            break;
                        }
                    }
                } else {
                    i = NL;
                }

                if (i >= NL) {
                    removeDyingProviderLocked(app, cpr);
                    NL = mLaunchingProviders.size();
                }
            }
            app.pubProviders.clear();
        }
        
        // Take care of any launching providers waiting for this process.
        if (checkAppInLaunchingProvidersLocked(app, false)) {
            restart = true;
        }
        
        // Unregister from connected content providers.
        if (!app.conProviders.isEmpty()) {
            Iterator it = app.conProviders.keySet().iterator();
            while (it.hasNext()) {
                ContentProviderRecord cpr = (ContentProviderRecord)it.next();
                cpr.clients.remove(app);
            }
            app.conProviders.clear();
        }

        // At this point there may be remaining entries in mLaunchingProviders
        // where we were the only one waiting, so they are no longer of use.
        // Look for these and clean up if found.
        // XXX Commented out for now.  Trying to figure out a way to reproduce
        // the actual situation to identify what is actually going on.
        if (false) {
            for (int i=0; i<NL; i++) {
                ContentProviderRecord cpr = (ContentProviderRecord)
                        mLaunchingProviders.get(i);
                if (cpr.clients.size() <= 0 && cpr.externals <= 0) {
                    synchronized (cpr) {
                        cpr.launchingApp = null;
                        cpr.notifyAll();
                    }
                }
            }
        }
        
        skipCurrentReceiverLocked(app);

        // Unregister any receivers.
        if (app.receivers.size() > 0) {
            Iterator<ReceiverList> it = app.receivers.iterator();
            while (it.hasNext()) {
                removeReceiverLocked(it.next());
            }
            app.receivers.clear();
        }
        
        // If the app is undergoing backup, tell the backup manager about it
        if (mBackupTarget != null && app.pid == mBackupTarget.app.pid) {
            if (DEBUG_BACKUP) Slog.d(TAG, "App " + mBackupTarget.appInfo + " died during backup");
            try {
                IBackupManager bm = IBackupManager.Stub.asInterface(
                        ServiceManager.getService(Context.BACKUP_SERVICE));
                bm.agentDisconnected(app.info.packageName);
            } catch (RemoteException e) {
                // can't happen; backup manager is local
            }
        }

        // If the caller is restarting this app, then leave it in its
        // current lists and let the caller take care of it.
        if (restarting) {
            return;
        }

        if (!app.persistent) {
            if (DEBUG_PROCESSES) Slog.v(TAG,
                    "Removing non-persistent process during cleanup: " + app);
            mProcessNames.remove(app.processName, app.info.uid);
        } else if (!app.removed) {
            // This app is persistent, so we need to keep its record around.
            // If it is not already on the pending app list, add it there
            // and start a new process for it.
            app.thread = null;
            app.forcingToForeground = null;
            app.foregroundServices = false;
            if (mPersistentStartingProcesses.indexOf(app) < 0) {
                mPersistentStartingProcesses.add(app);
                restart = true;
            }
        }
        mProcessesOnHold.remove(app);

        if (app == mHomeProcess) {
            mHomeProcess = null;
        }
        
        if (restart) {
            // We have components that still need to be running in the
            // process, so re-launch it.
            mProcessNames.put(app.processName, app.info.uid, app);
            startProcessLocked(app, "restart", app.processName);
        } else if (app.pid > 0 && app.pid != MY_PID) {
            // Goodbye!
            synchronized (mPidsSelfLocked) {
                mPidsSelfLocked.remove(app.pid);
                mHandler.removeMessages(PROC_START_TIMEOUT_MSG, app);
            }
            app.setPid(0);
        }
    }

    boolean checkAppInLaunchingProvidersLocked(ProcessRecord app, boolean alwaysBad) {
        // Look through the content providers we are waiting to have launched,
        // and if any run in this process then either schedule a restart of
        // the process or kill the client waiting for it if this process has
        // gone bad.
        int NL = mLaunchingProviders.size();
        boolean restart = false;
        for (int i=0; i<NL; i++) {
            ContentProviderRecord cpr = (ContentProviderRecord)
                    mLaunchingProviders.get(i);
            if (cpr.launchingApp == app) {
                if (!alwaysBad && !app.bad) {
                    restart = true;
                } else {
                    removeDyingProviderLocked(app, cpr);
                    NL = mLaunchingProviders.size();
                }
            }
        }
        return restart;
    }
    
    // =========================================================
    // SERVICES
    // =========================================================

    ActivityManager.RunningServiceInfo makeRunningServiceInfoLocked(ServiceRecord r) {
        ActivityManager.RunningServiceInfo info =
            new ActivityManager.RunningServiceInfo();
        info.service = r.name;
        if (r.app != null) {
            info.pid = r.app.pid;
        }
        info.uid = r.appInfo.uid;
        info.process = r.processName;
        info.foreground = r.isForeground;
        info.activeSince = r.createTime;
        info.started = r.startRequested;
        info.clientCount = r.connections.size();
        info.crashCount = r.crashCount;
        info.lastActivityTime = r.lastActivity;
        if (r.isForeground) {
            info.flags |= ActivityManager.RunningServiceInfo.FLAG_FOREGROUND;
        }
        if (r.startRequested) {
            info.flags |= ActivityManager.RunningServiceInfo.FLAG_STARTED;
        }
        if (r.app != null && r.app.pid == MY_PID) {
            info.flags |= ActivityManager.RunningServiceInfo.FLAG_SYSTEM_PROCESS;
        }
        if (r.app != null && r.app.persistent) {
            info.flags |= ActivityManager.RunningServiceInfo.FLAG_PERSISTENT_PROCESS;
        }
        for (ConnectionRecord conn : r.connections.values()) {
            if (conn.clientLabel != 0) {
                info.clientPackage = conn.binding.client.info.packageName;
                info.clientLabel = conn.clientLabel;
                break;
            }
        }
        return info;
    }
    
    public List<ActivityManager.RunningServiceInfo> getServices(int maxNum,
            int flags) {
        synchronized (this) {
            ArrayList<ActivityManager.RunningServiceInfo> res
                    = new ArrayList<ActivityManager.RunningServiceInfo>();
            
            if (mServices.size() > 0) {
                Iterator<ServiceRecord> it = mServices.values().iterator();
                while (it.hasNext() && res.size() < maxNum) {
                    res.add(makeRunningServiceInfoLocked(it.next()));
                }
            }

            for (int i=0; i<mRestartingServices.size() && res.size() < maxNum; i++) {
                ServiceRecord r = mRestartingServices.get(i);
                ActivityManager.RunningServiceInfo info =
                        makeRunningServiceInfoLocked(r);
                info.restarting = r.nextRestartTime;
                res.add(info);
            }
            
            return res;
        }
    }

    public PendingIntent getRunningServiceControlPanel(ComponentName name) {
        synchronized (this) {
            ServiceRecord r = mServices.get(name);
            if (r != null) {
                for (ConnectionRecord conn : r.connections.values()) {
                    if (conn.clientIntent != null) {
                        return conn.clientIntent;
                    }
                }
            }
        }
        return null;
    }
    
    private final ServiceRecord findServiceLocked(ComponentName name,
            IBinder token) {
        ServiceRecord r = mServices.get(name);
        return r == token ? r : null;
    }

    private final class ServiceLookupResult {
        final ServiceRecord record;
        final String permission;

        ServiceLookupResult(ServiceRecord _record, String _permission) {
            record = _record;
            permission = _permission;
        }
    };

    private ServiceLookupResult findServiceLocked(Intent service,
            String resolvedType) {
        ServiceRecord r = null;
        if (service.getComponent() != null) {
            r = mServices.get(service.getComponent());
        }
        if (r == null) {
            Intent.FilterComparison filter = new Intent.FilterComparison(service);
            r = mServicesByIntent.get(filter);
        }

        if (r == null) {
            try {
                ResolveInfo rInfo =
                    ActivityThread.getPackageManager().resolveService(
                            service, resolvedType, 0);
                ServiceInfo sInfo =
                    rInfo != null ? rInfo.serviceInfo : null;
                if (sInfo == null) {
                    return null;
                }

                ComponentName name = new ComponentName(
                        sInfo.applicationInfo.packageName, sInfo.name);
                r = mServices.get(name);
            } catch (RemoteException ex) {
                // pm is in same process, this will never happen.
            }
        }
        if (r != null) {
            int callingPid = Binder.getCallingPid();
            int callingUid = Binder.getCallingUid();
            if (checkComponentPermission(r.permission,
                    callingPid, callingUid, r.exported ? -1 : r.appInfo.uid)
                    != PackageManager.PERMISSION_GRANTED) {
                Slog.w(TAG, "Permission Denial: Accessing service " + r.name
                        + " from pid=" + callingPid
                        + ", uid=" + callingUid
                        + " requires " + r.permission);
                return new ServiceLookupResult(null, r.permission);
            }
            return new ServiceLookupResult(r, null);
        }
        return null;
    }

    private class ServiceRestarter implements Runnable {
        private ServiceRecord mService;

        void setService(ServiceRecord service) {
            mService = service;
        }

        public void run() {
            synchronized(ActivityManagerService.this) {
                performServiceRestartLocked(mService);
            }
        }
    }

    private ServiceLookupResult retrieveServiceLocked(Intent service,
            String resolvedType, int callingPid, int callingUid) {
        ServiceRecord r = null;
        if (service.getComponent() != null) {
            r = mServices.get(service.getComponent());
        }
        Intent.FilterComparison filter = new Intent.FilterComparison(service);
        r = mServicesByIntent.get(filter);
        if (r == null) {
            try {
                ResolveInfo rInfo =
                    ActivityThread.getPackageManager().resolveService(
                            service, resolvedType, STOCK_PM_FLAGS);
                ServiceInfo sInfo =
                    rInfo != null ? rInfo.serviceInfo : null;
                if (sInfo == null) {
                    Slog.w(TAG, "Unable to start service " + service +
                          ": not found");
                    return null;
                }

                ComponentName name = new ComponentName(
                        sInfo.applicationInfo.packageName, sInfo.name);
                r = mServices.get(name);
                if (r == null) {
                    filter = new Intent.FilterComparison(service.cloneFilter());
                    ServiceRestarter res = new ServiceRestarter();
                    BatteryStatsImpl.Uid.Pkg.Serv ss = null;
                    BatteryStatsImpl stats = mBatteryStatsService.getActiveStatistics();
                    synchronized (stats) {
                        ss = stats.getServiceStatsLocked(
                                sInfo.applicationInfo.uid, sInfo.packageName,
                                sInfo.name);
                    }
                    r = new ServiceRecord(this, ss, name, filter, sInfo, res);
                    res.setService(r);
                    mServices.put(name, r);
                    mServicesByIntent.put(filter, r);
                    
                    // Make sure this component isn't in the pending list.
                    int N = mPendingServices.size();
                    for (int i=0; i<N; i++) {
                        ServiceRecord pr = mPendingServices.get(i);
                        if (pr.name.equals(name)) {
                            mPendingServices.remove(i);
                            i--;
                            N--;
                        }
                    }
                }
            } catch (RemoteException ex) {
                // pm is in same process, this will never happen.
            }
        }
        if (r != null) {
            if (checkComponentPermission(r.permission,
                    callingPid, callingUid, r.exported ? -1 : r.appInfo.uid)
                    != PackageManager.PERMISSION_GRANTED) {
                Slog.w(TAG, "Permission Denial: Accessing service " + r.name
                        + " from pid=" + Binder.getCallingPid()
                        + ", uid=" + Binder.getCallingUid()
                        + " requires " + r.permission);
                return new ServiceLookupResult(null, r.permission);
            }
            return new ServiceLookupResult(r, null);
        }
        return null;
    }

    private final void bumpServiceExecutingLocked(ServiceRecord r) {
        long now = SystemClock.uptimeMillis();
        if (r.executeNesting == 0 && r.app != null) {
            if (r.app.executingServices.size() == 0) {
                Message msg = mHandler.obtainMessage(SERVICE_TIMEOUT_MSG);
                msg.obj = r.app;
                mHandler.sendMessageAtTime(msg, now+SERVICE_TIMEOUT);
            }
            r.app.executingServices.add(r);
        }
        r.executeNesting++;
        r.executingStart = now;
    }

    private final void sendServiceArgsLocked(ServiceRecord r,
            boolean oomAdjusted) {
        final int N = r.pendingStarts.size();
        if (N == 0) {
            return;
        }

        int i = 0;
        while (i < N) {
            try {
                ServiceRecord.StartItem si = r.pendingStarts.get(i);
                if (DEBUG_SERVICE) Slog.v(TAG, "Sending arguments to service: "
                        + r.name + " " + r.intent + " args=" + si.intent);
                if (si.intent == null && N > 1) {
                    // If somehow we got a dummy start at the front, then
                    // just drop it here.
                    i++;
                    continue;
                }
                bumpServiceExecutingLocked(r);
                if (!oomAdjusted) {
                    oomAdjusted = true;
                    updateOomAdjLocked(r.app);
                }
                int flags = 0;
                if (si.deliveryCount > 0) {
                    flags |= Service.START_FLAG_RETRY;
                }
                if (si.doneExecutingCount > 0) {
                    flags |= Service.START_FLAG_REDELIVERY;
                }
                r.app.thread.scheduleServiceArgs(r, si.id, flags, si.intent);
                si.deliveredTime = SystemClock.uptimeMillis();
                r.deliveredStarts.add(si);
                si.deliveryCount++;
                i++;
            } catch (RemoteException e) {
                // Remote process gone...  we'll let the normal cleanup take
                // care of this.
                break;
            } catch (Exception e) {
                Slog.w(TAG, "Unexpected exception", e);
                break;
            }
        }
        if (i == N) {
            r.pendingStarts.clear();
        } else {
            while (i > 0) {
                i--;
                r.pendingStarts.remove(i);
            }
        }
    }

    private final boolean requestServiceBindingLocked(ServiceRecord r,
            IntentBindRecord i, boolean rebind) {
        if (r.app == null || r.app.thread == null) {
            // If service is not currently running, can't yet bind.
            return false;
        }
        if ((!i.requested || rebind) && i.apps.size() > 0) {
            try {
                bumpServiceExecutingLocked(r);
                if (DEBUG_SERVICE) Slog.v(TAG, "Connecting binding " + i
                        + ": shouldUnbind=" + i.hasBound);
                r.app.thread.scheduleBindService(r, i.intent.getIntent(), rebind);
                if (!rebind) {
                    i.requested = true;
                }
                i.hasBound = true;
                i.doRebind = false;
            } catch (RemoteException e) {
                return false;
            }
        }
        return true;
    }

    private final void requestServiceBindingsLocked(ServiceRecord r) {
        Iterator<IntentBindRecord> bindings = r.bindings.values().iterator();
        while (bindings.hasNext()) {
            IntentBindRecord i = bindings.next();
            if (!requestServiceBindingLocked(r, i, false)) {
                break;
            }
        }
    }

    private final void realStartServiceLocked(ServiceRecord r,
            ProcessRecord app) throws RemoteException {
        if (app.thread == null) {
            throw new RemoteException();
        }

        r.app = app;
        r.restartTime = r.lastActivity = SystemClock.uptimeMillis();

        app.services.add(r);
        bumpServiceExecutingLocked(r);
        updateLruProcessLocked(app, true, true);

        boolean created = false;
        try {
            if (DEBUG_SERVICE) Slog.v(TAG, "Scheduling start service: "
                    + r.name + " " + r.intent);
            mStringBuilder.setLength(0);
            r.intent.getIntent().toShortString(mStringBuilder, false, true);
            EventLog.writeEvent(EventLogTags.AM_CREATE_SERVICE,
                    System.identityHashCode(r), r.shortName,
                    mStringBuilder.toString(), r.app.pid);
            synchronized (r.stats.getBatteryStats()) {
                r.stats.startLaunchedLocked();
            }
            ensurePackageDexOpt(r.serviceInfo.packageName);
            app.thread.scheduleCreateService(r, r.serviceInfo);
            r.postNotification();
            created = true;
        } finally {
            if (!created) {
                app.services.remove(r);
                scheduleServiceRestartLocked(r, false);
            }
        }

        requestServiceBindingsLocked(r);
        
        // If the service is in the started state, and there are no
        // pending arguments, then fake up one so its onStartCommand() will
        // be called.
        if (r.startRequested && r.callStart && r.pendingStarts.size() == 0) {
            r.lastStartId++;
            if (r.lastStartId < 1) {
                r.lastStartId = 1;
            }
            r.pendingStarts.add(new ServiceRecord.StartItem(r.lastStartId, null));
        }
        
        sendServiceArgsLocked(r, true);
    }

    private final boolean scheduleServiceRestartLocked(ServiceRecord r,
            boolean allowCancel) {
        boolean canceled = false;
        
        final long now = SystemClock.uptimeMillis();
        long minDuration = SERVICE_RESTART_DURATION;
        long resetTime = SERVICE_RESET_RUN_DURATION;
        
        // Any delivered but not yet finished starts should be put back
        // on the pending list.
        final int N = r.deliveredStarts.size();
        if (N > 0) {
            for (int i=N-1; i>=0; i--) {
                ServiceRecord.StartItem si = r.deliveredStarts.get(i);
                if (si.intent == null) {
                    // We'll generate this again if needed.
                } else if (!allowCancel || (si.deliveryCount < ServiceRecord.MAX_DELIVERY_COUNT
                        && si.doneExecutingCount < ServiceRecord.MAX_DONE_EXECUTING_COUNT)) {
                    r.pendingStarts.add(0, si);
                    long dur = SystemClock.uptimeMillis() - si.deliveredTime;
                    dur *= 2;
                    if (minDuration < dur) minDuration = dur;
                    if (resetTime < dur) resetTime = dur;
                } else {
                    Slog.w(TAG, "Canceling start item " + si.intent + " in service "
                            + r.name);
                    canceled = true;
                }
            }
            r.deliveredStarts.clear();
        }
        
        r.totalRestartCount++;
        if (r.restartDelay == 0) {
            r.restartCount++;
            r.restartDelay = minDuration;
        } else {
            // If it has been a "reasonably long time" since the service
            // was started, then reset our restart duration back to
            // the beginning, so we don't infinitely increase the duration
            // on a service that just occasionally gets killed (which is
            // a normal case, due to process being killed to reclaim memory).
            if (now > (r.restartTime+resetTime)) {
                r.restartCount = 1;
                r.restartDelay = minDuration;
            } else {
                r.restartDelay *= SERVICE_RESTART_DURATION_FACTOR;
                if (r.restartDelay < minDuration) {
                    r.restartDelay = minDuration;
                }
            }
        }
        
        r.nextRestartTime = now + r.restartDelay;
        
        // Make sure that we don't end up restarting a bunch of services
        // all at the same time.
        boolean repeat;
        do {
            repeat = false;
            for (int i=mRestartingServices.size()-1; i>=0; i--) {
                ServiceRecord r2 = mRestartingServices.get(i);
                if (r2 != r && r.nextRestartTime
                        >= (r2.nextRestartTime-SERVICE_MIN_RESTART_TIME_BETWEEN)
                        && r.nextRestartTime
                        < (r2.nextRestartTime+SERVICE_MIN_RESTART_TIME_BETWEEN)) {
                    r.nextRestartTime = r2.nextRestartTime + SERVICE_MIN_RESTART_TIME_BETWEEN;
                    r.restartDelay = r.nextRestartTime - now;
                    repeat = true;
                    break;
                }
            }
        } while (repeat);
        
        if (!mRestartingServices.contains(r)) {
            mRestartingServices.add(r);
        }
        
        r.cancelNotification();
        
        mHandler.removeCallbacks(r.restarter);
        mHandler.postAtTime(r.restarter, r.nextRestartTime);
        r.nextRestartTime = SystemClock.uptimeMillis() + r.restartDelay;
        Slog.w(TAG, "Scheduling restart of crashed service "
                + r.shortName + " in " + r.restartDelay + "ms");
        EventLog.writeEvent(EventLogTags.AM_SCHEDULE_SERVICE_RESTART,
                r.shortName, r.restartDelay);

        return canceled;
    }

    final void performServiceRestartLocked(ServiceRecord r) {
        if (!mRestartingServices.contains(r)) {
            return;
        }
        bringUpServiceLocked(r, r.intent.getIntent().getFlags(), true);
    }

    private final boolean unscheduleServiceRestartLocked(ServiceRecord r) {
        if (r.restartDelay == 0) {
            return false;
        }
        r.resetRestartCounter();
        mRestartingServices.remove(r);
        mHandler.removeCallbacks(r.restarter);
        return true;
    }

    private final boolean bringUpServiceLocked(ServiceRecord r,
            int intentFlags, boolean whileRestarting) {
        //Slog.i(TAG, "Bring up service:");
        //r.dump("  ");

        if (r.app != null && r.app.thread != null) {
            sendServiceArgsLocked(r, false);
            return true;
        }

        if (!whileRestarting && r.restartDelay > 0) {
            // If waiting for a restart, then do nothing.
            return true;
        }

        if (DEBUG_SERVICE) Slog.v(TAG, "Bringing up service " + r.name
                + " " + r.intent);

        // We are now bringing the service up, so no longer in the
        // restarting state.
        mRestartingServices.remove(r);
        
        final String appName = r.processName;
        ProcessRecord app = getProcessRecordLocked(appName, r.appInfo.uid);
        if (app != null && app.thread != null) {
            try {
                realStartServiceLocked(r, app);
                return true;
            } catch (RemoteException e) {
                Slog.w(TAG, "Exception when starting service " + r.shortName, e);
            }

            // If a dead object exception was thrown -- fall through to
            // restart the application.
        }

        // Not running -- get it started, and enqueue this service record
        // to be executed when the app comes up.
        if (startProcessLocked(appName, r.appInfo, true, intentFlags,
                "service", r.name, false) == null) {
            Slog.w(TAG, "Unable to launch app "
                    + r.appInfo.packageName + "/"
                    + r.appInfo.uid + " for service "
                    + r.intent.getIntent() + ": process is bad");
            bringDownServiceLocked(r, true);
            return false;
        }
        
        if (!mPendingServices.contains(r)) {
            mPendingServices.add(r);
        }
        
        return true;
    }

    private final void bringDownServiceLocked(ServiceRecord r, boolean force) {
        //Slog.i(TAG, "Bring down service:");
        //r.dump("  ");

        // Does it still need to run?
        if (!force && r.startRequested) {
            return;
        }
        if (r.connections.size() > 0) {
            if (!force) {
                // XXX should probably keep a count of the number of auto-create
                // connections directly in the service.
                Iterator<ConnectionRecord> it = r.connections.values().iterator();
                while (it.hasNext()) {
                    ConnectionRecord cr = it.next();
                    if ((cr.flags&Context.BIND_AUTO_CREATE) != 0) {
                        return;
                    }
                }
            }

            // Report to all of the connections that the service is no longer
            // available.
            Iterator<ConnectionRecord> it = r.connections.values().iterator();
            while (it.hasNext()) {
                ConnectionRecord c = it.next();
                try {
                    // todo: shouldn't be a synchronous call!
                    c.conn.connected(r.name, null);
                } catch (Exception e) {
                    Slog.w(TAG, "Failure disconnecting service " + r.name +
                          " to connection " + c.conn.asBinder() +
                          " (in " + c.binding.client.processName + ")", e);
                }
            }
        }

        // Tell the service that it has been unbound.
        if (r.bindings.size() > 0 && r.app != null && r.app.thread != null) {
            Iterator<IntentBindRecord> it = r.bindings.values().iterator();
            while (it.hasNext()) {
                IntentBindRecord ibr = it.next();
                if (DEBUG_SERVICE) Slog.v(TAG, "Bringing down binding " + ibr
                        + ": hasBound=" + ibr.hasBound);
                if (r.app != null && r.app.thread != null && ibr.hasBound) {
                    try {
                        bumpServiceExecutingLocked(r);
                        updateOomAdjLocked(r.app);
                        ibr.hasBound = false;
                        r.app.thread.scheduleUnbindService(r,
                                ibr.intent.getIntent());
                    } catch (Exception e) {
                        Slog.w(TAG, "Exception when unbinding service "
                                + r.shortName, e);
                        serviceDoneExecutingLocked(r, true);
                    }
                }
            }
        }

        if (DEBUG_SERVICE) Slog.v(TAG, "Bringing down service " + r.name
                 + " " + r.intent);
        EventLog.writeEvent(EventLogTags.AM_DESTROY_SERVICE,
                System.identityHashCode(r), r.shortName,
                (r.app != null) ? r.app.pid : -1);

        mServices.remove(r.name);
        mServicesByIntent.remove(r.intent);
        if (localLOGV) Slog.v(TAG, "BRING DOWN SERVICE: " + r.shortName);
        r.totalRestartCount = 0;
        unscheduleServiceRestartLocked(r);

        // Also make sure it is not on the pending list.
        int N = mPendingServices.size();
        for (int i=0; i<N; i++) {
            if (mPendingServices.get(i) == r) {
                mPendingServices.remove(i);
                if (DEBUG_SERVICE) Slog.v(
                    TAG, "Removed pending service: " + r.shortName);
                i--;
                N--;
            }
        }

        r.cancelNotification();
        r.isForeground = false;
        r.foregroundId = 0;
        r.foregroundNoti = null;
        
        // Clear start entries.
        r.deliveredStarts.clear();
        r.pendingStarts.clear();
        
        if (r.app != null) {
            synchronized (r.stats.getBatteryStats()) {
                r.stats.stopLaunchedLocked();
            }
            r.app.services.remove(r);
            if (r.app.thread != null) {
                try {
                    if (DEBUG_SERVICE) Slog.v(TAG,
                            "Stopping service: " + r.shortName);
                    bumpServiceExecutingLocked(r);
                    mStoppingServices.add(r);
                    updateOomAdjLocked(r.app);
                    r.app.thread.scheduleStopService(r);
                } catch (Exception e) {
                    Slog.w(TAG, "Exception when stopping service "
                            + r.shortName, e);
                    serviceDoneExecutingLocked(r, true);
                }
                updateServiceForegroundLocked(r.app, false);
            } else {
                if (DEBUG_SERVICE) Slog.v(
                    TAG, "Removed service that has no process: " + r.shortName);
            }
        } else {
            if (DEBUG_SERVICE) Slog.v(
                TAG, "Removed service that is not running: " + r.shortName);
        }
    }

    ComponentName startServiceLocked(IApplicationThread caller,
            Intent service, String resolvedType,
            int callingPid, int callingUid) {
        synchronized(this) {
            if (DEBUG_SERVICE) Slog.v(TAG, "startService: " + service
                    + " type=" + resolvedType + " args=" + service.getExtras());

            if (caller != null) {
                final ProcessRecord callerApp = getRecordForAppLocked(caller);
                if (callerApp == null) {
                    throw new SecurityException(
                            "Unable to find app for caller " + caller
                            + " (pid=" + Binder.getCallingPid()
                            + ") when starting service " + service);
                }
            }

            ServiceLookupResult res =
                retrieveServiceLocked(service, resolvedType,
                        callingPid, callingUid);
            if (res == null) {
                return null;
            }
            if (res.record == null) {
                return new ComponentName("!", res.permission != null
                        ? res.permission : "private to package");
            }
            ServiceRecord r = res.record;
            if (unscheduleServiceRestartLocked(r)) {
                if (DEBUG_SERVICE) Slog.v(TAG, "START SERVICE WHILE RESTART PENDING: "
                        + r.shortName);
            }
            r.startRequested = true;
            r.callStart = false;
            r.lastStartId++;
            if (r.lastStartId < 1) {
                r.lastStartId = 1;
            }
            r.pendingStarts.add(new ServiceRecord.StartItem(r.lastStartId, service));
            r.lastActivity = SystemClock.uptimeMillis();
            synchronized (r.stats.getBatteryStats()) {
                r.stats.startRunningLocked();
            }
            if (!bringUpServiceLocked(r, service.getFlags(), false)) {
                return new ComponentName("!", "Service process is bad");
            }
            return r.name;
        }
    }

    public ComponentName startService(IApplicationThread caller, Intent service,
            String resolvedType) {
        // Refuse possible leaked file descriptors
        if (service != null && service.hasFileDescriptors() == true) {
            throw new IllegalArgumentException("File descriptors passed in Intent");
        }

        synchronized(this) {
            final int callingPid = Binder.getCallingPid();
            final int callingUid = Binder.getCallingUid();
            final long origId = Binder.clearCallingIdentity();
            ComponentName res = startServiceLocked(caller, service,
                    resolvedType, callingPid, callingUid);
            Binder.restoreCallingIdentity(origId);
            return res;
        }
    }

    ComponentName startServiceInPackage(int uid,
            Intent service, String resolvedType) {
        synchronized(this) {
            final long origId = Binder.clearCallingIdentity();
            ComponentName res = startServiceLocked(null, service,
                    resolvedType, -1, uid);
            Binder.restoreCallingIdentity(origId);
            return res;
        }
    }

    public int stopService(IApplicationThread caller, Intent service,
            String resolvedType) {
        // Refuse possible leaked file descriptors
        if (service != null && service.hasFileDescriptors() == true) {
            throw new IllegalArgumentException("File descriptors passed in Intent");
        }

        synchronized(this) {
            if (DEBUG_SERVICE) Slog.v(TAG, "stopService: " + service
                    + " type=" + resolvedType);

            final ProcessRecord callerApp = getRecordForAppLocked(caller);
            if (caller != null && callerApp == null) {
                throw new SecurityException(
                        "Unable to find app for caller " + caller
                        + " (pid=" + Binder.getCallingPid()
                        + ") when stopping service " + service);
            }

            // If this service is active, make sure it is stopped.
            ServiceLookupResult r = findServiceLocked(service, resolvedType);
            if (r != null) {
                if (r.record != null) {
                    synchronized (r.record.stats.getBatteryStats()) {
                        r.record.stats.stopRunningLocked();
                    }
                    r.record.startRequested = false;
                    r.record.callStart = false;
                    final long origId = Binder.clearCallingIdentity();
                    bringDownServiceLocked(r.record, false);
                    Binder.restoreCallingIdentity(origId);
                    return 1;
                }
                return -1;
            }
        }

        return 0;
    }

    public IBinder peekService(Intent service, String resolvedType) {
        // Refuse possible leaked file descriptors
        if (service != null && service.hasFileDescriptors() == true) {
            throw new IllegalArgumentException("File descriptors passed in Intent");
        }

        IBinder ret = null;

        synchronized(this) {
            ServiceLookupResult r = findServiceLocked(service, resolvedType);
            
            if (r != null) {
                // r.record is null if findServiceLocked() failed the caller permission check
                if (r.record == null) {
                    throw new SecurityException(
                            "Permission Denial: Accessing service " + r.record.name
                            + " from pid=" + Binder.getCallingPid()
                            + ", uid=" + Binder.getCallingUid()
                            + " requires " + r.permission);
                }
                IntentBindRecord ib = r.record.bindings.get(r.record.intent);
                if (ib != null) {
                    ret = ib.binder;
                }
            }
        }

        return ret;
    }
    
    public boolean stopServiceToken(ComponentName className, IBinder token,
            int startId) {
        synchronized(this) {
            if (DEBUG_SERVICE) Slog.v(TAG, "stopServiceToken: " + className
                    + " " + token + " startId=" + startId);
            ServiceRecord r = findServiceLocked(className, token);
            if (r != null) {
                if (startId >= 0) {
                    // Asked to only stop if done with all work.  Note that
                    // to avoid leaks, we will take this as dropping all
                    // start items up to and including this one.
                    ServiceRecord.StartItem si = r.findDeliveredStart(startId, false);
                    if (si != null) {
                        while (r.deliveredStarts.size() > 0) {
                            if (r.deliveredStarts.remove(0) == si) {
                                break;
                            }
                        }
                    }
                    
                    if (r.lastStartId != startId) {
                        return false;
                    }
                    
                    if (r.deliveredStarts.size() > 0) {
                        Slog.w(TAG, "stopServiceToken startId " + startId
                                + " is last, but have " + r.deliveredStarts.size()
                                + " remaining args");
                    }
                }
                
                synchronized (r.stats.getBatteryStats()) {
                    r.stats.stopRunningLocked();
                    r.startRequested = false;
                    r.callStart = false;
                }
                final long origId = Binder.clearCallingIdentity();
                bringDownServiceLocked(r, false);
                Binder.restoreCallingIdentity(origId);
                return true;
            }
        }
        return false;
    }

    public void setServiceForeground(ComponentName className, IBinder token,
            int id, Notification notification, boolean removeNotification) {
        final long origId = Binder.clearCallingIdentity();
        try {
        synchronized(this) {
            ServiceRecord r = findServiceLocked(className, token);
            if (r != null) {
                if (id != 0) {
                    if (notification == null) {
                        throw new IllegalArgumentException("null notification");
                    }
                    if (r.foregroundId != id) {
                        r.cancelNotification();
                        r.foregroundId = id;
                    }
                    notification.flags |= Notification.FLAG_FOREGROUND_SERVICE;
                    r.foregroundNoti = notification;
                    r.isForeground = true;
                    r.postNotification();
                    if (r.app != null) {
                        updateServiceForegroundLocked(r.app, true);
                    }
                } else {
                    if (r.isForeground) {
                        r.isForeground = false;
                        if (r.app != null) {
                            updateLruProcessLocked(r.app, false, true);
                            updateServiceForegroundLocked(r.app, true);
                        }
                    }
                    if (removeNotification) {
                        r.cancelNotification();
                        r.foregroundId = 0;
                        r.foregroundNoti = null;
                    }
                }
            }
        }
        } finally {
            Binder.restoreCallingIdentity(origId);
        }
    }

    public void updateServiceForegroundLocked(ProcessRecord proc, boolean oomAdj) {
        boolean anyForeground = false;
        for (ServiceRecord sr : (HashSet<ServiceRecord>)proc.services) {
            if (sr.isForeground) {
                anyForeground = true;
                break;
            }
        }
        if (anyForeground != proc.foregroundServices) {
            proc.foregroundServices = anyForeground;
            if (oomAdj) {
                updateOomAdjLocked();
            }
        }
    }
    
    public int bindService(IApplicationThread caller, IBinder token,
            Intent service, String resolvedType,
            IServiceConnection connection, int flags) {
        // Refuse possible leaked file descriptors
        if (service != null && service.hasFileDescriptors() == true) {
            throw new IllegalArgumentException("File descriptors passed in Intent");
        }

        synchronized(this) {
            if (DEBUG_SERVICE) Slog.v(TAG, "bindService: " + service
                    + " type=" + resolvedType + " conn=" + connection.asBinder()
                    + " flags=0x" + Integer.toHexString(flags));
            final ProcessRecord callerApp = getRecordForAppLocked(caller);
            if (callerApp == null) {
                throw new SecurityException(
                        "Unable to find app for caller " + caller
                        + " (pid=" + Binder.getCallingPid()
                        + ") when binding service " + service);
            }

            HistoryRecord activity = null;
            if (token != null) {
                int aindex = indexOfTokenLocked(token);
                if (aindex < 0) {
                    Slog.w(TAG, "Binding with unknown activity: " + token);
                    return 0;
                }
                activity = (HistoryRecord)mHistory.get(aindex);
            }

            int clientLabel = 0;
            PendingIntent clientIntent = null;
            
            if (callerApp.info.uid == Process.SYSTEM_UID) {
                // Hacky kind of thing -- allow system stuff to tell us
                // what they are, so we can report this elsewhere for
                // others to know why certain services are running.
                try {
                    clientIntent = (PendingIntent)service.getParcelableExtra(
                            Intent.EXTRA_CLIENT_INTENT);
                } catch (RuntimeException e) {
                }
                if (clientIntent != null) {
                    clientLabel = service.getIntExtra(Intent.EXTRA_CLIENT_LABEL, 0);
                    if (clientLabel != 0) {
                        // There are no useful extras in the intent, trash them.
                        // System code calling with this stuff just needs to know
                        // this will happen.
                        service = service.cloneFilter();
                    }
                }
            }
            
            ServiceLookupResult res =
                retrieveServiceLocked(service, resolvedType,
                        Binder.getCallingPid(), Binder.getCallingUid());
            if (res == null) {
                return 0;
            }
            if (res.record == null) {
                return -1;
            }
            ServiceRecord s = res.record;

            final long origId = Binder.clearCallingIdentity();

            if (unscheduleServiceRestartLocked(s)) {
                if (DEBUG_SERVICE) Slog.v(TAG, "BIND SERVICE WHILE RESTART PENDING: "
                        + s.shortName);
            }

            AppBindRecord b = s.retrieveAppBindingLocked(service, callerApp);
            ConnectionRecord c = new ConnectionRecord(b, activity,
                    connection, flags, clientLabel, clientIntent);

            IBinder binder = connection.asBinder();
            s.connections.put(binder, c);
            b.connections.add(c);
            if (activity != null) {
                if (activity.connections == null) {
                    activity.connections = new HashSet<ConnectionRecord>();
                }
                activity.connections.add(c);
            }
            b.client.connections.add(c);
            mServiceConnections.put(binder, c);

            if ((flags&Context.BIND_AUTO_CREATE) != 0) {
                s.lastActivity = SystemClock.uptimeMillis();
                if (!bringUpServiceLocked(s, service.getFlags(), false)) {
                    return 0;
                }
            }

            if (s.app != null) {
                // This could have made the service more important.
                updateOomAdjLocked(s.app);
            }

            if (DEBUG_SERVICE) Slog.v(TAG, "Bind " + s + " with " + b
                    + ": received=" + b.intent.received
                    + " apps=" + b.intent.apps.size()
                    + " doRebind=" + b.intent.doRebind);

            if (s.app != null && b.intent.received) {
                // Service is already running, so we can immediately
                // publish the connection.
                try {
                    c.conn.connected(s.name, b.intent.binder);
                } catch (Exception e) {
                    Slog.w(TAG, "Failure sending service " + s.shortName
                            + " to connection " + c.conn.asBinder()
                            + " (in " + c.binding.client.processName + ")", e);
                }

                // If this is the first app connected back to this binding,
                // and the service had previously asked to be told when
                // rebound, then do so.
                if (b.intent.apps.size() == 1 && b.intent.doRebind) {
                    requestServiceBindingLocked(s, b.intent, true);
                }
            } else if (!b.intent.requested) {
                requestServiceBindingLocked(s, b.intent, false);
            }

            Binder.restoreCallingIdentity(origId);
        }

        return 1;
    }

    private void removeConnectionLocked(
        ConnectionRecord c, ProcessRecord skipApp, HistoryRecord skipAct) {
        IBinder binder = c.conn.asBinder();
        AppBindRecord b = c.binding;
        ServiceRecord s = b.service;
        s.connections.remove(binder);
        b.connections.remove(c);
        if (c.activity != null && c.activity != skipAct) {
            if (c.activity.connections != null) {
                c.activity.connections.remove(c);
            }
        }
        if (b.client != skipApp) {
            b.client.connections.remove(c);
        }
        mServiceConnections.remove(binder);

        if (b.connections.size() == 0) {
            b.intent.apps.remove(b.client);
        }

        if (DEBUG_SERVICE) Slog.v(TAG, "Disconnecting binding " + b.intent
                + ": shouldUnbind=" + b.intent.hasBound);
        if (s.app != null && s.app.thread != null && b.intent.apps.size() == 0
                && b.intent.hasBound) {
            try {
                bumpServiceExecutingLocked(s);
                updateOomAdjLocked(s.app);
                b.intent.hasBound = false;
                // Assume the client doesn't want to know about a rebind;
                // we will deal with that later if it asks for one.
                b.intent.doRebind = false;
                s.app.thread.scheduleUnbindService(s, b.intent.intent.getIntent());
            } catch (Exception e) {
                Slog.w(TAG, "Exception when unbinding service " + s.shortName, e);
                serviceDoneExecutingLocked(s, true);
            }
        }

        if ((c.flags&Context.BIND_AUTO_CREATE) != 0) {
            bringDownServiceLocked(s, false);
        }
    }

    public boolean unbindService(IServiceConnection connection) {
        synchronized (this) {
            IBinder binder = connection.asBinder();
            if (DEBUG_SERVICE) Slog.v(TAG, "unbindService: conn=" + binder);
            ConnectionRecord r = mServiceConnections.get(binder);
            if (r == null) {
                Slog.w(TAG, "Unbind failed: could not find connection for "
                      + connection.asBinder());
                return false;
            }

            final long origId = Binder.clearCallingIdentity();

            removeConnectionLocked(r, null, null);

            if (r.binding.service.app != null) {
                // This could have made the service less important.
                updateOomAdjLocked(r.binding.service.app);
            }

            Binder.restoreCallingIdentity(origId);
        }

        return true;
    }

    public void publishService(IBinder token, Intent intent, IBinder service) {
        // Refuse possible leaked file descriptors
        if (intent != null && intent.hasFileDescriptors() == true) {
            throw new IllegalArgumentException("File descriptors passed in Intent");
        }

        synchronized(this) {
            if (!(token instanceof ServiceRecord)) {
                throw new IllegalArgumentException("Invalid service token");
            }
            ServiceRecord r = (ServiceRecord)token;

            final long origId = Binder.clearCallingIdentity();

            if (DEBUG_SERVICE) Slog.v(TAG, "PUBLISHING SERVICE " + r.name
                    + " " + intent + ": " + service);
            if (r != null) {
                Intent.FilterComparison filter
                        = new Intent.FilterComparison(intent);
                IntentBindRecord b = r.bindings.get(filter);
                if (b != null && !b.received) {
                    b.binder = service;
                    b.requested = true;
                    b.received = true;
                    if (r.connections.size() > 0) {
                        Iterator<ConnectionRecord> it
                                = r.connections.values().iterator();
                        while (it.hasNext()) {
                            ConnectionRecord c = it.next();
                            if (!filter.equals(c.binding.intent.intent)) {
                                if (DEBUG_SERVICE) Slog.v(
                                        TAG, "Not publishing to: " + c);
                                if (DEBUG_SERVICE) Slog.v(
                                        TAG, "Bound intent: " + c.binding.intent.intent);
                                if (DEBUG_SERVICE) Slog.v(
                                        TAG, "Published intent: " + intent);
                                continue;
                            }
                            if (DEBUG_SERVICE) Slog.v(TAG, "Publishing to: " + c);
                            try {
                                c.conn.connected(r.name, service);
                            } catch (Exception e) {
                                Slog.w(TAG, "Failure sending service " + r.name +
                                      " to connection " + c.conn.asBinder() +
                                      " (in " + c.binding.client.processName + ")", e);
                            }
                        }
                    }
                }

                serviceDoneExecutingLocked(r, mStoppingServices.contains(r));

                Binder.restoreCallingIdentity(origId);
            }
        }
    }

    public void unbindFinished(IBinder token, Intent intent, boolean doRebind) {
        // Refuse possible leaked file descriptors
        if (intent != null && intent.hasFileDescriptors() == true) {
            throw new IllegalArgumentException("File descriptors passed in Intent");
        }

        synchronized(this) {
            if (!(token instanceof ServiceRecord)) {
                throw new IllegalArgumentException("Invalid service token");
            }
            ServiceRecord r = (ServiceRecord)token;

            final long origId = Binder.clearCallingIdentity();

            if (r != null) {
                Intent.FilterComparison filter
                        = new Intent.FilterComparison(intent);
                IntentBindRecord b = r.bindings.get(filter);
                if (DEBUG_SERVICE) Slog.v(TAG, "unbindFinished in " + r
                        + " at " + b + ": apps="
                        + (b != null ? b.apps.size() : 0));
                if (b != null) {
                    if (b.apps.size() > 0) {
                        // Applications have already bound since the last
                        // unbind, so just rebind right here.
                        requestServiceBindingLocked(r, b, true);
                    } else {
                        // Note to tell the service the next time there is
                        // a new client.
                        b.doRebind = true;
                    }
                }

                serviceDoneExecutingLocked(r, mStoppingServices.contains(r));

                Binder.restoreCallingIdentity(origId);
            }
        }
    }

    public void serviceDoneExecuting(IBinder token, int type, int startId, int res) {
        synchronized(this) {
            if (!(token instanceof ServiceRecord)) {
                throw new IllegalArgumentException("Invalid service token");
            }
            ServiceRecord r = (ServiceRecord)token;
            boolean inStopping = mStoppingServices.contains(token);
            if (r != null) {
                if (DEBUG_SERVICE) Slog.v(TAG, "DONE EXECUTING SERVICE " + r.name
                        + ": nesting=" + r.executeNesting
                        + ", inStopping=" + inStopping);
                if (r != token) {
                    Slog.w(TAG, "Done executing service " + r.name
                          + " with incorrect token: given " + token
                          + ", expected " + r);
                    return;
                }

                if (type == 1) {
                    // This is a call from a service start...  take care of
                    // book-keeping.
                    r.callStart = true;
                    switch (res) {
                        case Service.START_STICKY_COMPATIBILITY:
                        case Service.START_STICKY: {
                            // We are done with the associated start arguments.
                            r.findDeliveredStart(startId, true);
                            // Don't stop if killed.
                            r.stopIfKilled = false;
                            break;
                        }
                        case Service.START_NOT_STICKY: {
                            // We are done with the associated start arguments.
                            r.findDeliveredStart(startId, true);
                            if (r.lastStartId == startId) {
                                // There is no more work, and this service
                                // doesn't want to hang around if killed.
                                r.stopIfKilled = true;
                            }
                            break;
                        }
                        case Service.START_REDELIVER_INTENT: {
                            // We'll keep this item until they explicitly
                            // call stop for it, but keep track of the fact
                            // that it was delivered.
                            ServiceRecord.StartItem si = r.findDeliveredStart(startId, false);
                            if (si != null) {
                                si.deliveryCount = 0;
                                si.doneExecutingCount++;
                                // Don't stop if killed.
                                r.stopIfKilled = true;
                            }
                            break;
                        }
                        default:
                            throw new IllegalArgumentException(
                                    "Unknown service start result: " + res);
                    }
                    if (res == Service.START_STICKY_COMPATIBILITY) {
                        r.callStart = false;
                    }
                }
                
                final long origId = Binder.clearCallingIdentity();
                serviceDoneExecutingLocked(r, inStopping);
                Binder.restoreCallingIdentity(origId);
            } else {
                Slog.w(TAG, "Done executing unknown service " + r.name
                        + " with token " + token);
            }
        }
    }

    public void serviceDoneExecutingLocked(ServiceRecord r, boolean inStopping) {
        r.executeNesting--;
        if (r.executeNesting <= 0 && r.app != null) {
            r.app.executingServices.remove(r);
            if (r.app.executingServices.size() == 0) {
                mHandler.removeMessages(SERVICE_TIMEOUT_MSG, r.app);
            }
            if (inStopping) {
                mStoppingServices.remove(r);
            }
            updateOomAdjLocked(r.app);
        }
    }

    void serviceTimeout(ProcessRecord proc) {
        String anrMessage = null;
        
        synchronized(this) {
            if (proc.executingServices.size() == 0 || proc.thread == null) {
                return;
            }
            long maxTime = SystemClock.uptimeMillis() - SERVICE_TIMEOUT;
            Iterator<ServiceRecord> it = proc.executingServices.iterator();
            ServiceRecord timeout = null;
            long nextTime = 0;
            while (it.hasNext()) {
                ServiceRecord sr = it.next();
                if (sr.executingStart < maxTime) {
                    timeout = sr;
                    break;
                }
                if (sr.executingStart > nextTime) {
                    nextTime = sr.executingStart;
                }
            }
            if (timeout != null && mLruProcesses.contains(proc)) {
                Slog.w(TAG, "Timeout executing service: " + timeout);
                anrMessage = "Executing service " + timeout.shortName;
            } else {
                Message msg = mHandler.obtainMessage(SERVICE_TIMEOUT_MSG);
                msg.obj = proc;
                mHandler.sendMessageAtTime(msg, nextTime+SERVICE_TIMEOUT);
            }
        }
        
        if (anrMessage != null) {
            appNotResponding(proc, null, null, anrMessage);
        }
    }
    
    // =========================================================
    // BACKUP AND RESTORE
    // =========================================================
    
    // Cause the target app to be launched if necessary and its backup agent
    // instantiated.  The backup agent will invoke backupAgentCreated() on the
    // activity manager to announce its creation.
    public boolean bindBackupAgent(ApplicationInfo app, int backupMode) {
        if (DEBUG_BACKUP) Slog.v(TAG, "startBackupAgent: app=" + app + " mode=" + backupMode);
        enforceCallingPermission("android.permission.BACKUP", "startBackupAgent");

        synchronized(this) {
            // !!! TODO: currently no check here that we're already bound
            BatteryStatsImpl.Uid.Pkg.Serv ss = null;
            BatteryStatsImpl stats = mBatteryStatsService.getActiveStatistics();
            synchronized (stats) {
                ss = stats.getServiceStatsLocked(app.uid, app.packageName, app.name);
            }

            BackupRecord r = new BackupRecord(ss, app, backupMode);
            ComponentName hostingName = new ComponentName(app.packageName, app.backupAgentName);
            // startProcessLocked() returns existing proc's record if it's already running
            ProcessRecord proc = startProcessLocked(app.processName, app,
                    false, 0, "backup", hostingName, false);
            if (proc == null) {
                Slog.e(TAG, "Unable to start backup agent process " + r);
                return false;
            }

            r.app = proc;
            mBackupTarget = r;
            mBackupAppName = app.packageName;

            // Try not to kill the process during backup
            updateOomAdjLocked(proc);

            // If the process is already attached, schedule the creation of the backup agent now.
            // If it is not yet live, this will be done when it attaches to the framework.
            if (proc.thread != null) {
                if (DEBUG_BACKUP) Slog.v(TAG, "Agent proc already running: " + proc);
                try {
                    proc.thread.scheduleCreateBackupAgent(app, backupMode);
                } catch (RemoteException e) {
                    // Will time out on the backup manager side
                }
            } else {
                if (DEBUG_BACKUP) Slog.v(TAG, "Agent proc not running, waiting for attach");
            }
            // Invariants: at this point, the target app process exists and the application
            // is either already running or in the process of coming up.  mBackupTarget and
            // mBackupAppName describe the app, so that when it binds back to the AM we
            // know that it's scheduled for a backup-agent operation.
        }
        
        return true;
    }

    // A backup agent has just come up                    
    public void backupAgentCreated(String agentPackageName, IBinder agent) {
        if (DEBUG_BACKUP) Slog.v(TAG, "backupAgentCreated: " + agentPackageName
                + " = " + agent);

        synchronized(this) {
            if (!agentPackageName.equals(mBackupAppName)) {
                Slog.e(TAG, "Backup agent created for " + agentPackageName + " but not requested!");
                return;
            }

            long oldIdent = Binder.clearCallingIdentity();
            try {
                IBackupManager bm = IBackupManager.Stub.asInterface(
                        ServiceManager.getService(Context.BACKUP_SERVICE));
                bm.agentConnected(agentPackageName, agent);
            } catch (RemoteException e) {
                // can't happen; the backup manager service is local
            } catch (Exception e) {
                Slog.w(TAG, "Exception trying to deliver BackupAgent binding: ");
                e.printStackTrace();
            } finally {
                Binder.restoreCallingIdentity(oldIdent);
            }
        }
    }

    // done with this agent
    public void unbindBackupAgent(ApplicationInfo appInfo) {
        if (DEBUG_BACKUP) Slog.v(TAG, "unbindBackupAgent: " + appInfo);
        if (appInfo == null) {
            Slog.w(TAG, "unbind backup agent for null app");
            return;
        }

        synchronized(this) {
            if (mBackupAppName == null) {
                Slog.w(TAG, "Unbinding backup agent with no active backup");
                return;
            }

            if (!mBackupAppName.equals(appInfo.packageName)) {
                Slog.e(TAG, "Unbind of " + appInfo + " but is not the current backup target");
                return;
            }

            ProcessRecord proc = mBackupTarget.app;
            mBackupTarget = null;
            mBackupAppName = null;

            // Not backing this app up any more; reset its OOM adjustment
            updateOomAdjLocked(proc);

            // If the app crashed during backup, 'thread' will be null here
            if (proc.thread != null) {
                try {
                    proc.thread.scheduleDestroyBackupAgent(appInfo);
                } catch (Exception e) {
                    Slog.e(TAG, "Exception when unbinding backup agent:");
                    e.printStackTrace();
                }
            }
        }
    }
    // =========================================================
    // BROADCASTS
    // =========================================================

    private final List getStickiesLocked(String action, IntentFilter filter,
            List cur) {
        final ContentResolver resolver = mContext.getContentResolver();
        final ArrayList<Intent> list = mStickyBroadcasts.get(action);
        if (list == null) {
            return cur;
        }
        int N = list.size();
        for (int i=0; i<N; i++) {
            Intent intent = list.get(i);
            if (filter.match(resolver, intent, true, TAG) >= 0) {
                if (cur == null) {
                    cur = new ArrayList<Intent>();
                }
                cur.add(intent);
            }
        }
        return cur;
    }

    private final void scheduleBroadcastsLocked() {
        if (DEBUG_BROADCAST) Slog.v(TAG, "Schedule broadcasts: current="
                + mBroadcastsScheduled);

        if (mBroadcastsScheduled) {
            return;
        }
        mHandler.sendEmptyMessage(BROADCAST_INTENT_MSG);
        mBroadcastsScheduled = true;
    }

    public Intent registerReceiver(IApplicationThread caller,
            IIntentReceiver receiver, IntentFilter filter, String permission) {
        synchronized(this) {
            ProcessRecord callerApp = null;
            if (caller != null) {
                callerApp = getRecordForAppLocked(caller);
                if (callerApp == null) {
                    throw new SecurityException(
                            "Unable to find app for caller " + caller
                            + " (pid=" + Binder.getCallingPid()
                            + ") when registering receiver " + receiver);
                }
            }

            List allSticky = null;

            // Look for any matching sticky broadcasts...
            Iterator actions = filter.actionsIterator();
            if (actions != null) {
                while (actions.hasNext()) {
                    String action = (String)actions.next();
                    allSticky = getStickiesLocked(action, filter, allSticky);
                }
            } else {
                allSticky = getStickiesLocked(null, filter, allSticky);
            }

            // The first sticky in the list is returned directly back to
            // the client.
            Intent sticky = allSticky != null ? (Intent)allSticky.get(0) : null;

            if (DEBUG_BROADCAST) Slog.v(TAG, "Register receiver " + filter
                    + ": " + sticky);

            if (receiver == null) {
                return sticky;
            }

            ReceiverList rl
                = (ReceiverList)mRegisteredReceivers.get(receiver.asBinder());
            if (rl == null) {
                rl = new ReceiverList(this, callerApp,
                        Binder.getCallingPid(),
                        Binder.getCallingUid(), receiver);
                if (rl.app != null) {
                    rl.app.receivers.add(rl);
                } else {
                    try {
                        receiver.asBinder().linkToDeath(rl, 0);
                    } catch (RemoteException e) {
                        return sticky;
                    }
                    rl.linkedToDeath = true;
                }
                mRegisteredReceivers.put(receiver.asBinder(), rl);
            }
            BroadcastFilter bf = new BroadcastFilter(filter, rl, permission);
            rl.add(bf);
            if (!bf.debugCheck()) {
                Slog.w(TAG, "==> For Dynamic broadast");
            }
            mReceiverResolver.addFilter(bf);

            // Enqueue broadcasts for all existing stickies that match
            // this filter.
            if (allSticky != null) {
                ArrayList receivers = new ArrayList();
                receivers.add(bf);

                int N = allSticky.size();
                for (int i=0; i<N; i++) {
                    Intent intent = (Intent)allSticky.get(i);
                    BroadcastRecord r = new BroadcastRecord(intent, null,
                            null, -1, -1, null, receivers, null, 0, null, null,
                            false, true, true);
                    if (mParallelBroadcasts.size() == 0) {
                        scheduleBroadcastsLocked();
                    }
                    mParallelBroadcasts.add(r);
                }
            }

            return sticky;
        }
    }

    public void unregisterReceiver(IIntentReceiver receiver) {
        if (DEBUG_BROADCAST) Slog.v(TAG, "Unregister receiver: " + receiver);

        boolean doNext = false;

        synchronized(this) {
            ReceiverList rl
                = (ReceiverList)mRegisteredReceivers.get(receiver.asBinder());
            if (rl != null) {
                if (rl.curBroadcast != null) {
                    BroadcastRecord r = rl.curBroadcast;
                    doNext = finishReceiverLocked(
                        receiver.asBinder(), r.resultCode, r.resultData,
                        r.resultExtras, r.resultAbort, true);
                }

                if (rl.app != null) {
                    rl.app.receivers.remove(rl);
                }
                removeReceiverLocked(rl);
                if (rl.linkedToDeath) {
                    rl.linkedToDeath = false;
                    rl.receiver.asBinder().unlinkToDeath(rl, 0);
                }
            }
        }

        if (!doNext) {
            return;
        }
        
        final long origId = Binder.clearCallingIdentity();
        processNextBroadcast(false);
        trimApplications();
        Binder.restoreCallingIdentity(origId);
    }

    void removeReceiverLocked(ReceiverList rl) {
        mRegisteredReceivers.remove(rl.receiver.asBinder());
        int N = rl.size();
        for (int i=0; i<N; i++) {
            mReceiverResolver.removeFilter(rl.get(i));
        }
    }
    
    private final void sendPackageBroadcastLocked(int cmd, String[] packages) {
        for (int i = mLruProcesses.size() - 1 ; i >= 0 ; i--) {
            ProcessRecord r = mLruProcesses.get(i);
            if (r.thread != null) {
                try {
                    r.thread.dispatchPackageBroadcast(cmd, packages);
                } catch (RemoteException ex) {
                }
            }
        }
    }
    
    private final int broadcastIntentLocked(ProcessRecord callerApp,
            String callerPackage, Intent intent, String resolvedType,
            IIntentReceiver resultTo, int resultCode, String resultData,
            Bundle map, String requiredPermission,
            boolean ordered, boolean sticky, int callingPid, int callingUid) {
        intent = new Intent(intent);

        if (DEBUG_BROADCAST_LIGHT) Slog.v(
            TAG, (sticky ? "Broadcast sticky: ": "Broadcast: ") + intent
            + " ordered=" + ordered);
        if ((resultTo != null) && !ordered) {
            Slog.w(TAG, "Broadcast " + intent + " not ordered but result callback requested!");
        }
        
        // Handle special intents: if this broadcast is from the package
        // manager about a package being removed, we need to remove all of
        // its activities from the history stack.
        final boolean uidRemoved = intent.ACTION_UID_REMOVED.equals(
                intent.getAction());
        if (intent.ACTION_PACKAGE_REMOVED.equals(intent.getAction())
                || intent.ACTION_PACKAGE_CHANGED.equals(intent.getAction())
                || Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(intent.getAction())
                || uidRemoved) {
            if (checkComponentPermission(
                    android.Manifest.permission.BROADCAST_PACKAGE_REMOVED,
                    callingPid, callingUid, -1)
                    == PackageManager.PERMISSION_GRANTED) {
                if (uidRemoved) {
                    final Bundle intentExtras = intent.getExtras();
                    final int uid = intentExtras != null
                            ? intentExtras.getInt(Intent.EXTRA_UID) : -1;
                    if (uid >= 0) {
                        BatteryStatsImpl bs = mBatteryStatsService.getActiveStatistics();
                        synchronized (bs) {
                            bs.removeUidStatsLocked(uid);
                        }
                    }
                } else {
                    // If resources are unvailble just force stop all
                    // those packages and flush the attribute cache as well.
                    if (Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(intent.getAction())) {
                        String list[] = intent.getStringArrayExtra(Intent.EXTRA_CHANGED_PACKAGE_LIST);
                        if (list != null && (list.length > 0)) {
                            for (String pkg : list) {
                                forceStopPackageLocked(pkg, -1, false, true, true);
                            }
                            sendPackageBroadcastLocked(
                                    IApplicationThread.EXTERNAL_STORAGE_UNAVAILABLE, list);
                        }
                    } else {
                        Uri data = intent.getData();
                        String ssp;
                        if (data != null && (ssp=data.getSchemeSpecificPart()) != null) {
                            if (!intent.getBooleanExtra(Intent.EXTRA_DONT_KILL_APP, false)) {
                                forceStopPackageLocked(ssp,
                                        intent.getIntExtra(Intent.EXTRA_UID, -1), false, true, true);
                            }
                            if (intent.ACTION_PACKAGE_REMOVED.equals(intent.getAction())) {
                                sendPackageBroadcastLocked(IApplicationThread.PACKAGE_REMOVED,
                                        new String[] {ssp});
                            }
                        }
                    }
                }
            } else {
                String msg = "Permission Denial: " + intent.getAction()
                        + " broadcast from " + callerPackage + " (pid=" + callingPid
                        + ", uid=" + callingUid + ")"
                        + " requires "
                        + android.Manifest.permission.BROADCAST_PACKAGE_REMOVED;
                Slog.w(TAG, msg);
                throw new SecurityException(msg);
            }
        }

        /*
         * If this is the time zone changed action, queue up a message that will reset the timezone
         * of all currently running processes. This message will get queued up before the broadcast
         * happens.
         */
        if (intent.ACTION_TIMEZONE_CHANGED.equals(intent.getAction())) {
            mHandler.sendEmptyMessage(UPDATE_TIME_ZONE);
        }

        /*
         * Prevent non-system code (defined here to be non-persistent
         * processes) from sending protected broadcasts.
         */
        if (callingUid == Process.SYSTEM_UID || callingUid == Process.PHONE_UID
                || callingUid == Process.SHELL_UID || callingUid == 0) {
            // Always okay.
        } else if (callerApp == null || !callerApp.persistent) {
            try {
                if (ActivityThread.getPackageManager().isProtectedBroadcast(
                        intent.getAction())) {
                    String msg = "Permission Denial: not allowed to send broadcast "
                            + intent.getAction() + " from pid="
                            + callingPid + ", uid=" + callingUid;
                    Slog.w(TAG, msg);
                    throw new SecurityException(msg);
                }
            } catch (RemoteException e) {
                Slog.w(TAG, "Remote exception", e);
                return BROADCAST_SUCCESS;
            }
        }
        
        // Add to the sticky list if requested.
        if (sticky) {
            if (checkPermission(android.Manifest.permission.BROADCAST_STICKY,
                    callingPid, callingUid)
                    != PackageManager.PERMISSION_GRANTED) {
                String msg = "Permission Denial: broadcastIntent() requesting a sticky broadcast from pid="
                        + callingPid + ", uid=" + callingUid
                        + " requires " + android.Manifest.permission.BROADCAST_STICKY;
                Slog.w(TAG, msg);
                throw new SecurityException(msg);
            }
            if (requiredPermission != null) {
                Slog.w(TAG, "Can't broadcast sticky intent " + intent
                        + " and enforce permission " + requiredPermission);
                return BROADCAST_STICKY_CANT_HAVE_PERMISSION;
            }
            if (intent.getComponent() != null) {
                throw new SecurityException(
                        "Sticky broadcasts can't target a specific component");
            }
            ArrayList<Intent> list = mStickyBroadcasts.get(intent.getAction());
            if (list == null) {
                list = new ArrayList<Intent>();
                mStickyBroadcasts.put(intent.getAction(), list);
            }
            int N = list.size();
            int i;
            for (i=0; i<N; i++) {
                if (intent.filterEquals(list.get(i))) {
                    // This sticky already exists, replace it.
                    list.set(i, new Intent(intent));
                    break;
                }
            }
            if (i >= N) {
                list.add(new Intent(intent));
            }
        }

        // Figure out who all will receive this broadcast.
        List receivers = null;
        List<BroadcastFilter> registeredReceivers = null;
        try {
            if (intent.getComponent() != null) {
                // Broadcast is going to one specific receiver class...
                ActivityInfo ai = ActivityThread.getPackageManager().
                    getReceiverInfo(intent.getComponent(), STOCK_PM_FLAGS);
                if (ai != null) {
                    receivers = new ArrayList();
                    ResolveInfo ri = new ResolveInfo();
                    ri.activityInfo = ai;
                    receivers.add(ri);
                }
            } else {
                // Need to resolve the intent to interested receivers...
                if ((intent.getFlags()&Intent.FLAG_RECEIVER_REGISTERED_ONLY)
                         == 0) {
                    receivers =
                        ActivityThread.getPackageManager().queryIntentReceivers(
                                intent, resolvedType, STOCK_PM_FLAGS);
                }
                registeredReceivers = mReceiverResolver.queryIntent(intent, resolvedType, false);
            }
        } catch (RemoteException ex) {
            // pm is in same process, this will never happen.
        }

        final boolean replacePending =
                (intent.getFlags()&Intent.FLAG_RECEIVER_REPLACE_PENDING) != 0;
        
        if (DEBUG_BROADCAST) Slog.v(TAG, "Enqueing broadcast: " + intent.getAction()
                + " replacePending=" + replacePending);
        
        int NR = registeredReceivers != null ? registeredReceivers.size() : 0;
        if (!ordered && NR > 0) {
            // If we are not serializing this broadcast, then send the
            // registered receivers separately so they don't wait for the
            // components to be launched.
            BroadcastRecord r = new BroadcastRecord(intent, callerApp,
                    callerPackage, callingPid, callingUid, requiredPermission,
                    registeredReceivers, resultTo, resultCode, resultData, map,
                    ordered, sticky, false);
            if (DEBUG_BROADCAST) Slog.v(
                    TAG, "Enqueueing parallel broadcast " + r
                    + ": prev had " + mParallelBroadcasts.size());
            boolean replaced = false;
            if (replacePending) {
                for (int i=mParallelBroadcasts.size()-1; i>=0; i--) {
                    if (intent.filterEquals(mParallelBroadcasts.get(i).intent)) {
                        if (DEBUG_BROADCAST) Slog.v(TAG,
                                "***** DROPPING PARALLEL: " + intent);
                        mParallelBroadcasts.set(i, r);
                        replaced = true;
                        break;
                    }
                }
            }
            if (!replaced) {
                mParallelBroadcasts.add(r);
                scheduleBroadcastsLocked();
            }
            registeredReceivers = null;
            NR = 0;
        }

        // Merge into one list.
        int ir = 0;
        if (receivers != null) {
            // A special case for PACKAGE_ADDED: do not allow the package
            // being added to see this broadcast.  This prevents them from
            // using this as a back door to get run as soon as they are
            // installed.  Maybe in the future we want to have a special install
            // broadcast or such for apps, but we'd like to deliberately make
            // this decision.
            String skipPackages[] = null;
            if (intent.ACTION_PACKAGE_ADDED.equals(intent.getAction())
                    || intent.ACTION_PACKAGE_RESTARTED.equals(intent.getAction())
                    || intent.ACTION_PACKAGE_DATA_CLEARED.equals(intent.getAction())) {
                Uri data = intent.getData();
                if (data != null) {
                    String pkgName = data.getSchemeSpecificPart();
                    if (pkgName != null) {
                        skipPackages = new String[] { pkgName };
                    }
                }
            } else if (intent.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE.equals(intent.getAction())) {
                skipPackages = intent.getStringArrayExtra(Intent.EXTRA_CHANGED_PACKAGE_LIST);
            }
            if (skipPackages != null && (skipPackages.length > 0)) {
                for (String skipPackage : skipPackages) {
                    if (skipPackage != null) {
                        int NT = receivers.size();
                        for (int it=0; it<NT; it++) {
                            ResolveInfo curt = (ResolveInfo)receivers.get(it);
                            if (curt.activityInfo.packageName.equals(skipPackage)) {
                                receivers.remove(it);
                                it--;
                                NT--;
                            }
                        }
                    }
                }
            }

            int NT = receivers != null ? receivers.size() : 0;
            int it = 0;
            ResolveInfo curt = null;
            BroadcastFilter curr = null;
            while (it < NT && ir < NR) {
                if (curt == null) {
                    curt = (ResolveInfo)receivers.get(it);
                }
                if (curr == null) {
                    curr = registeredReceivers.get(ir);
                }
                if (curr.getPriority() >= curt.priority) {
                    // Insert this broadcast record into the final list.
                    receivers.add(it, curr);
                    ir++;
                    curr = null;
                    it++;
                    NT++;
                } else {
                    // Skip to the next ResolveInfo in the final list.
                    it++;
                    curt = null;
                }
            }
        }
        while (ir < NR) {
            if (receivers == null) {
                receivers = new ArrayList();
            }
            receivers.add(registeredReceivers.get(ir));
            ir++;
        }

        if ((receivers != null && receivers.size() > 0)
                || resultTo != null) {
            BroadcastRecord r = new BroadcastRecord(intent, callerApp,
                    callerPackage, callingPid, callingUid, requiredPermission,
                    receivers, resultTo, resultCode, resultData, map, ordered,
                    sticky, false);
            if (DEBUG_BROADCAST) Slog.v(
                    TAG, "Enqueueing ordered broadcast " + r
                    + ": prev had " + mOrderedBroadcasts.size());
            if (DEBUG_BROADCAST) {
                int seq = r.intent.getIntExtra("seq", -1);
                Slog.i(TAG, "Enqueueing broadcast " + r.intent.getAction() + " seq=" + seq);
            }
            boolean replaced = false;
            if (replacePending) {
                for (int i=mOrderedBroadcasts.size()-1; i>=0; i--) {
                    if (intent.filterEquals(mOrderedBroadcasts.get(i).intent)) {
                        if (DEBUG_BROADCAST) Slog.v(TAG,
                                "***** DROPPING ORDERED: " + intent);
                        mOrderedBroadcasts.set(i, r);
                        replaced = true;
                        break;
                    }
                }
            }
            if (!replaced) {
                mOrderedBroadcasts.add(r);
                scheduleBroadcastsLocked();
            }
        }

        return BROADCAST_SUCCESS;
    }

    public final int broadcastIntent(IApplicationThread caller,
            Intent intent, String resolvedType, IIntentReceiver resultTo,
            int resultCode, String resultData, Bundle map,
            String requiredPermission, boolean serialized, boolean sticky) {
        // Refuse possible leaked file descriptors
        if (intent != null && intent.hasFileDescriptors() == true) {
            throw new IllegalArgumentException("File descriptors passed in Intent");
        }

        synchronized(this) {
            int flags = intent.getFlags();
            
            if (!mSystemReady) {
                // if the caller really truly claims to know what they're doing, go
                // ahead and allow the broadcast without launching any receivers
                if ((flags&Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT) != 0) {
                    intent = new Intent(intent);
                    intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY);
                } else if ((flags&Intent.FLAG_RECEIVER_REGISTERED_ONLY) == 0){
                    Slog.e(TAG, "Attempt to launch receivers of broadcast intent " + intent
                            + " before boot completion");
                    throw new IllegalStateException("Cannot broadcast before boot completed");
                }
            }
            
            if ((flags&Intent.FLAG_RECEIVER_BOOT_UPGRADE) != 0) {
                throw new IllegalArgumentException(
                        "Can't use FLAG_RECEIVER_BOOT_UPGRADE here");
            }
            
            final ProcessRecord callerApp = getRecordForAppLocked(caller);
            final int callingPid = Binder.getCallingPid();
            final int callingUid = Binder.getCallingUid();
            final long origId = Binder.clearCallingIdentity();
            int res = broadcastIntentLocked(callerApp,
                    callerApp != null ? callerApp.info.packageName : null,
                    intent, resolvedType, resultTo,
                    resultCode, resultData, map, requiredPermission, serialized,
                    sticky, callingPid, callingUid);
            Binder.restoreCallingIdentity(origId);
            return res;
        }
    }

    int broadcastIntentInPackage(String packageName, int uid,
            Intent intent, String resolvedType, IIntentReceiver resultTo,
            int resultCode, String resultData, Bundle map,
            String requiredPermission, boolean serialized, boolean sticky) {
        synchronized(this) {
            final long origId = Binder.clearCallingIdentity();
            int res = broadcastIntentLocked(null, packageName, intent, resolvedType,
                    resultTo, resultCode, resultData, map, requiredPermission,
                    serialized, sticky, -1, uid);
            Binder.restoreCallingIdentity(origId);
            return res;
        }
    }

    public final void unbroadcastIntent(IApplicationThread caller,
            Intent intent) {
        // Refuse possible leaked file descriptors
        if (intent != null && intent.hasFileDescriptors() == true) {
            throw new IllegalArgumentException("File descriptors passed in Intent");
        }

        synchronized(this) {
            if (checkCallingPermission(android.Manifest.permission.BROADCAST_STICKY)
                    != PackageManager.PERMISSION_GRANTED) {
                String msg = "Permission Denial: unbroadcastIntent() from pid="
                        + Binder.getCallingPid()
                        + ", uid=" + Binder.getCallingUid()
                        + " requires " + android.Manifest.permission.BROADCAST_STICKY;
                Slog.w(TAG, msg);
                throw new SecurityException(msg);
            }
            ArrayList<Intent> list = mStickyBroadcasts.get(intent.getAction());
            if (list != null) {
                int N = list.size();
                int i;
                for (i=0; i<N; i++) {
                    if (intent.filterEquals(list.get(i))) {
                        list.remove(i);
                        break;
                    }
                }
            }
        }
    }

    private final boolean finishReceiverLocked(IBinder receiver, int resultCode,
            String resultData, Bundle resultExtras, boolean resultAbort,
            boolean explicit) {
        if (mOrderedBroadcasts.size() == 0) {
            if (explicit) {
                Slog.w(TAG, "finishReceiver called but no pending broadcasts");
            }
            return false;
        }
        BroadcastRecord r = mOrderedBroadcasts.get(0);
        if (r.receiver == null) {
            if (explicit) {
                Slog.w(TAG, "finishReceiver called but none active");
            }
            return false;
        }
        if (r.receiver != receiver) {
            Slog.w(TAG, "finishReceiver called but active receiver is different");
            return false;
        }
        int state = r.state;
        r.state = r.IDLE;
        if (state == r.IDLE) {
            if (explicit) {
                Slog.w(TAG, "finishReceiver called but state is IDLE");
            }
        }
        r.receiver = null;
        r.intent.setComponent(null);
        if (r.curApp != null) {
            r.curApp.curReceiver = null;
        }
        if (r.curFilter != null) {
            r.curFilter.receiverList.curBroadcast = null;
        }
        r.curFilter = null;
        r.curApp = null;
        r.curComponent = null;
        r.curReceiver = null;
        mPendingBroadcast = null;

        r.resultCode = resultCode;
        r.resultData = resultData;
        r.resultExtras = resultExtras;
        r.resultAbort = resultAbort;

        // We will process the next receiver right now if this is finishing
        // an app receiver (which is always asynchronous) or after we have
        // come back from calling a receiver.
        return state == BroadcastRecord.APP_RECEIVE
                || state == BroadcastRecord.CALL_DONE_RECEIVE;
    }

    public void finishReceiver(IBinder who, int resultCode, String resultData,
            Bundle resultExtras, boolean resultAbort) {
        if (DEBUG_BROADCAST) Slog.v(TAG, "Finish receiver: " + who);

        // Refuse possible leaked file descriptors
        if (resultExtras != null && resultExtras.hasFileDescriptors()) {
            throw new IllegalArgumentException("File descriptors passed in Bundle");
        }

        boolean doNext;

        final long origId = Binder.clearCallingIdentity();

        synchronized(this) {
            doNext = finishReceiverLocked(
                who, resultCode, resultData, resultExtras, resultAbort, true);
        }

        if (doNext) {
            processNextBroadcast(false);
        }
        trimApplications();

        Binder.restoreCallingIdentity(origId);
    }

    private final void logBroadcastReceiverDiscard(BroadcastRecord r) {
        if (r.nextReceiver > 0) {
            Object curReceiver = r.receivers.get(r.nextReceiver-1);
            if (curReceiver instanceof BroadcastFilter) {
                BroadcastFilter bf = (BroadcastFilter) curReceiver;
                EventLog.writeEvent(EventLogTags.AM_BROADCAST_DISCARD_FILTER,
                        System.identityHashCode(r),
                        r.intent.getAction(),
                        r.nextReceiver - 1,
                        System.identityHashCode(bf));
            } else {
                EventLog.writeEvent(EventLogTags.AM_BROADCAST_DISCARD_APP,
                        System.identityHashCode(r),
                        r.intent.getAction(),
                        r.nextReceiver - 1,
                        ((ResolveInfo)curReceiver).toString());
            }
        } else {
            Slog.w(TAG, "Discarding broadcast before first receiver is invoked: "
                    + r);
            EventLog.writeEvent(EventLogTags.AM_BROADCAST_DISCARD_APP,
                    System.identityHashCode(r),
                    r.intent.getAction(),
                    r.nextReceiver,
                    "NONE");
        }
    }

    private final void broadcastTimeout() {
        ProcessRecord app = null;
        String anrMessage = null;

        synchronized (this) {
            if (mOrderedBroadcasts.size() == 0) {
                return;
            }
            long now = SystemClock.uptimeMillis();
            BroadcastRecord r = mOrderedBroadcasts.get(0);
            if ((r.receiverTime+BROADCAST_TIMEOUT) > now) {
                if (DEBUG_BROADCAST) Slog.v(TAG,
                        "Premature timeout @ " + now + ": resetting BROADCAST_TIMEOUT_MSG for "
                        + (r.receiverTime + BROADCAST_TIMEOUT));
                Message msg = mHandler.obtainMessage(BROADCAST_TIMEOUT_MSG);
                mHandler.sendMessageAtTime(msg, r.receiverTime+BROADCAST_TIMEOUT);
                return;
            }

            Slog.w(TAG, "Timeout of broadcast " + r + " - receiver=" + r.receiver);
            r.receiverTime = now;
            r.anrCount++;

            // Current receiver has passed its expiration date.
            if (r.nextReceiver <= 0) {
                Slog.w(TAG, "Timeout on receiver with nextReceiver <= 0");
                return;
            }

            Object curReceiver = r.receivers.get(r.nextReceiver-1);
            Slog.w(TAG, "Receiver during timeout: " + curReceiver);
            logBroadcastReceiverDiscard(r);
            if (curReceiver instanceof BroadcastFilter) {
                BroadcastFilter bf = (BroadcastFilter)curReceiver;
                if (bf.receiverList.pid != 0
                        && bf.receiverList.pid != MY_PID) {
                    synchronized (this.mPidsSelfLocked) {
                        app = this.mPidsSelfLocked.get(
                                bf.receiverList.pid);
                    }
                }
            } else {
                app = r.curApp;
            }
            
            if (app != null) {
                anrMessage = "Broadcast of " + r.intent.toString();
            }

            if (mPendingBroadcast == r) {
                mPendingBroadcast = null;
            }

            // Move on to the next receiver.
            finishReceiverLocked(r.receiver, r.resultCode, r.resultData,
                    r.resultExtras, r.resultAbort, true);
            scheduleBroadcastsLocked();
        }
        
        if (anrMessage != null) {
            appNotResponding(app, null, null, anrMessage);
        }
    }

    private final void processCurBroadcastLocked(BroadcastRecord r,
            ProcessRecord app) throws RemoteException {
        if (app.thread == null) {
            throw new RemoteException();
        }
        r.receiver = app.thread.asBinder();
        r.curApp = app;
        app.curReceiver = r;
        updateLruProcessLocked(app, true, true);

        // Tell the application to launch this receiver.
        r.intent.setComponent(r.curComponent);

        boolean started = false;
        try {
            if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG,
                    "Delivering to component " + r.curComponent
                    + ": " + r);
            ensurePackageDexOpt(r.intent.getComponent().getPackageName());
            app.thread.scheduleReceiver(new Intent(r.intent), r.curReceiver,
                    r.resultCode, r.resultData, r.resultExtras, r.ordered);
            started = true;
        } finally {
            if (!started) {
                r.receiver = null;
                r.curApp = null;
                app.curReceiver = null;
            }
        }

    }

    static void performReceive(ProcessRecord app, IIntentReceiver receiver,
            Intent intent, int resultCode, String data, Bundle extras,
            boolean ordered, boolean sticky) throws RemoteException {
        if (app != null && app.thread != null) {
            // If we have an app thread, do the call through that so it is
            // correctly ordered with other one-way calls.
            app.thread.scheduleRegisteredReceiver(receiver, intent, resultCode,
                    data, extras, ordered, sticky);
        } else {
            receiver.performReceive(intent, resultCode, data, extras, ordered, sticky);
        }
    }
    
    private final void deliverToRegisteredReceiver(BroadcastRecord r,
            BroadcastFilter filter, boolean ordered) {
        boolean skip = false;
        if (filter.requiredPermission != null) {
            int perm = checkComponentPermission(filter.requiredPermission,
                    r.callingPid, r.callingUid, -1);
            if (perm != PackageManager.PERMISSION_GRANTED) {
                Slog.w(TAG, "Permission Denial: broadcasting "
                        + r.intent.toString()
                        + " from " + r.callerPackage + " (pid="
                        + r.callingPid + ", uid=" + r.callingUid + ")"
                        + " requires " + filter.requiredPermission
                        + " due to registered receiver " + filter);
                skip = true;
            }
        }
        if (r.requiredPermission != null) {
            int perm = checkComponentPermission(r.requiredPermission,
                    filter.receiverList.pid, filter.receiverList.uid, -1);
            if (perm != PackageManager.PERMISSION_GRANTED) {
                Slog.w(TAG, "Permission Denial: receiving "
                        + r.intent.toString()
                        + " to " + filter.receiverList.app
                        + " (pid=" + filter.receiverList.pid
                        + ", uid=" + filter.receiverList.uid + ")"
                        + " requires " + r.requiredPermission
                        + " due to sender " + r.callerPackage
                        + " (uid " + r.callingUid + ")");
                skip = true;
            }
        }

        if (!skip) {
            // If this is not being sent as an ordered broadcast, then we
            // don't want to touch the fields that keep track of the current
            // state of ordered broadcasts.
            if (ordered) {
                r.receiver = filter.receiverList.receiver.asBinder();
                r.curFilter = filter;
                filter.receiverList.curBroadcast = r;
                r.state = BroadcastRecord.CALL_IN_RECEIVE;
                if (filter.receiverList.app != null) {
                    // Bump hosting application to no longer be in background
                    // scheduling class.  Note that we can't do that if there
                    // isn't an app...  but we can only be in that case for
                    // things that directly call the IActivityManager API, which
                    // are already core system stuff so don't matter for this.
                    r.curApp = filter.receiverList.app;
                    filter.receiverList.app.curReceiver = r;
                    updateOomAdjLocked();
                }
            }
            try {
                if (DEBUG_BROADCAST_LIGHT) {
                    int seq = r.intent.getIntExtra("seq", -1);
                    Slog.i(TAG, "Delivering to " + filter
                            + " (seq=" + seq + "): " + r);
                }
                performReceive(filter.receiverList.app, filter.receiverList.receiver,
                    new Intent(r.intent), r.resultCode,
                    r.resultData, r.resultExtras, r.ordered, r.initialSticky);
                if (ordered) {
                    r.state = BroadcastRecord.CALL_DONE_RECEIVE;
                }
            } catch (RemoteException e) {
                Slog.w(TAG, "Failure sending broadcast " + r.intent, e);
                if (ordered) {
                    r.receiver = null;
                    r.curFilter = null;
                    filter.receiverList.curBroadcast = null;
                    if (filter.receiverList.app != null) {
                        filter.receiverList.app.curReceiver = null;
                    }
                }
            }
        }
    }

    private final void addBroadcastToHistoryLocked(BroadcastRecord r) {
        if (r.callingUid < 0) {
            // This was from a registerReceiver() call; ignore it.
            return;
        }
        System.arraycopy(mBroadcastHistory, 0, mBroadcastHistory, 1,
                MAX_BROADCAST_HISTORY-1);
        r.finishTime = SystemClock.uptimeMillis();
        mBroadcastHistory[0] = r;
    }
    
    private final void processNextBroadcast(boolean fromMsg) {
        synchronized(this) {
            BroadcastRecord r;

            if (DEBUG_BROADCAST) Slog.v(TAG, "processNextBroadcast: "
                    + mParallelBroadcasts.size() + " broadcasts, "
                    + mOrderedBroadcasts.size() + " ordered broadcasts");

            updateCpuStats();
            
            if (fromMsg) {
                mBroadcastsScheduled = false;
            }

            // First, deliver any non-serialized broadcasts right away.
            while (mParallelBroadcasts.size() > 0) {
                r = mParallelBroadcasts.remove(0);
                r.dispatchTime = SystemClock.uptimeMillis();
                final int N = r.receivers.size();
                if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG, "Processing parallel broadcast "
                        + r);
                for (int i=0; i<N; i++) {
                    Object target = r.receivers.get(i);
                    if (DEBUG_BROADCAST)  Slog.v(TAG,
                            "Delivering non-ordered to registered "
                            + target + ": " + r);
                    deliverToRegisteredReceiver(r, (BroadcastFilter)target, false);
                }
                addBroadcastToHistoryLocked(r);
                if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG, "Done with parallel broadcast "
                        + r);
            }

            // Now take care of the next serialized one...

            // If we are waiting for a process to come up to handle the next
            // broadcast, then do nothing at this point.  Just in case, we
            // check that the process we're waiting for still exists.
            if (mPendingBroadcast != null) {
                if (DEBUG_BROADCAST_LIGHT) {
                    Slog.v(TAG, "processNextBroadcast: waiting for "
                            + mPendingBroadcast.curApp);
                }

                boolean isDead;
                synchronized (mPidsSelfLocked) {
                    isDead = (mPidsSelfLocked.get(mPendingBroadcast.curApp.pid) == null);
                }
                if (!isDead) {
                    // It's still alive, so keep waiting
                    return;
                } else {
                    Slog.w(TAG, "pending app " + mPendingBroadcast.curApp
                            + " died before responding to broadcast");
                    mPendingBroadcast = null;
                }
            }

            boolean looped = false;
            
            do {
                if (mOrderedBroadcasts.size() == 0) {
                    // No more broadcasts pending, so all done!
                    scheduleAppGcsLocked();
                    if (looped) {
                        // If we had finished the last ordered broadcast, then
                        // make sure all processes have correct oom and sched
                        // adjustments.
                        updateOomAdjLocked();
                    }
                    return;
                }
                r = mOrderedBroadcasts.get(0);
                boolean forceReceive = false;

                // Ensure that even if something goes awry with the timeout
                // detection, we catch "hung" broadcasts here, discard them,
                // and continue to make progress.
                //
                // This is only done if the system is ready so that PRE_BOOT_COMPLETED
                // receivers don't get executed with with timeouts. They're intended for
                // one time heavy lifting after system upgrades and can take
                // significant amounts of time.
                int numReceivers = (r.receivers != null) ? r.receivers.size() : 0;
                if (mSystemReady && r.dispatchTime > 0) {
                    long now = SystemClock.uptimeMillis();
                    if ((numReceivers > 0) &&
                            (now > r.dispatchTime + (2*BROADCAST_TIMEOUT*numReceivers))) {
                        Slog.w(TAG, "Hung broadcast discarded after timeout failure:"
                                + " now=" + now
                                + " dispatchTime=" + r.dispatchTime
                                + " startTime=" + r.receiverTime
                                + " intent=" + r.intent
                                + " numReceivers=" + numReceivers
                                + " nextReceiver=" + r.nextReceiver
                                + " state=" + r.state);
                        broadcastTimeout(); // forcibly finish this broadcast
                        forceReceive = true;
                        r.state = BroadcastRecord.IDLE;
                    }
                }

                if (r.state != BroadcastRecord.IDLE) {
                    if (DEBUG_BROADCAST) Slog.d(TAG,
                            "processNextBroadcast() called when not idle (state="
                            + r.state + ")");
                    return;
                }

                if (r.receivers == null || r.nextReceiver >= numReceivers
                        || r.resultAbort || forceReceive) {
                    // No more receivers for this broadcast!  Send the final
                    // result if requested...
                    if (r.resultTo != null) {
                        try {
                            if (DEBUG_BROADCAST) {
                                int seq = r.intent.getIntExtra("seq", -1);
                                Slog.i(TAG, "Finishing broadcast " + r.intent.getAction()
                                        + " seq=" + seq + " app=" + r.callerApp);
                            }
                            performReceive(r.callerApp, r.resultTo,
                                new Intent(r.intent), r.resultCode,
                                r.resultData, r.resultExtras, false, false);
                        } catch (RemoteException e) {
                            Slog.w(TAG, "Failure sending broadcast result of " + r.intent, e);
                        }
                    }
                    
                    if (DEBUG_BROADCAST) Slog.v(TAG, "Cancelling BROADCAST_TIMEOUT_MSG");
                    mHandler.removeMessages(BROADCAST_TIMEOUT_MSG);

                    if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG, "Finished with ordered broadcast "
                            + r);
                    
                    // ... and on to the next...
                    addBroadcastToHistoryLocked(r);
                    mOrderedBroadcasts.remove(0);
                    r = null;
                    looped = true;
                    continue;
                }
            } while (r == null);

            // Get the next receiver...
            int recIdx = r.nextReceiver++;

            // Keep track of when this receiver started, and make sure there
            // is a timeout message pending to kill it if need be.
            r.receiverTime = SystemClock.uptimeMillis();
            if (recIdx == 0) {
                r.dispatchTime = r.receiverTime;

                if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG, "Processing ordered broadcast "
                        + r);
                if (DEBUG_BROADCAST) Slog.v(TAG,
                        "Submitting BROADCAST_TIMEOUT_MSG for "
                        + (r.receiverTime + BROADCAST_TIMEOUT));
                Message msg = mHandler.obtainMessage(BROADCAST_TIMEOUT_MSG);
                mHandler.sendMessageAtTime(msg, r.receiverTime+BROADCAST_TIMEOUT);
            }

            Object nextReceiver = r.receivers.get(recIdx);
            if (nextReceiver instanceof BroadcastFilter) {
                // Simple case: this is a registered receiver who gets
                // a direct call.
                BroadcastFilter filter = (BroadcastFilter)nextReceiver;
                if (DEBUG_BROADCAST)  Slog.v(TAG,
                        "Delivering ordered to registered "
                        + filter + ": " + r);
                deliverToRegisteredReceiver(r, filter, r.ordered);
                if (r.receiver == null || !r.ordered) {
                    // The receiver has already finished, so schedule to
                    // process the next one.
                    if (DEBUG_BROADCAST) Slog.v(TAG, "Quick finishing: ordered="
                            + r.ordered + " receiver=" + r.receiver);
                    r.state = BroadcastRecord.IDLE;
                    scheduleBroadcastsLocked();
                }
                return;
            }

            // Hard case: need to instantiate the receiver, possibly
            // starting its application process to host it.

            ResolveInfo info =
                (ResolveInfo)nextReceiver;

            boolean skip = false;
            int perm = checkComponentPermission(info.activityInfo.permission,
                    r.callingPid, r.callingUid,
                    info.activityInfo.exported
                            ? -1 : info.activityInfo.applicationInfo.uid);
            if (perm != PackageManager.PERMISSION_GRANTED) {
                Slog.w(TAG, "Permission Denial: broadcasting "
                        + r.intent.toString()
                        + " from " + r.callerPackage + " (pid=" + r.callingPid
                        + ", uid=" + r.callingUid + ")"
                        + " requires " + info.activityInfo.permission
                        + " due to receiver " + info.activityInfo.packageName
                        + "/" + info.activityInfo.name);
                skip = true;
            }
            if (r.callingUid != Process.SYSTEM_UID &&
                r.requiredPermission != null) {
                try {
                    perm = ActivityThread.getPackageManager().
                            checkPermission(r.requiredPermission,
                                    info.activityInfo.applicationInfo.packageName);
                } catch (RemoteException e) {
                    perm = PackageManager.PERMISSION_DENIED;
                }
                if (perm != PackageManager.PERMISSION_GRANTED) {
                    Slog.w(TAG, "Permission Denial: receiving "
                            + r.intent + " to "
                            + info.activityInfo.applicationInfo.packageName
                            + " requires " + r.requiredPermission
                            + " due to sender " + r.callerPackage
                            + " (uid " + r.callingUid + ")");
                    skip = true;
                }
            }
            if (r.curApp != null && r.curApp.crashing) {
                // If the target process is crashing, just skip it.
                skip = true;
            }

            if (skip) {
                r.receiver = null;
                r.curFilter = null;
                r.state = BroadcastRecord.IDLE;
                scheduleBroadcastsLocked();
                return;
            }

            r.state = BroadcastRecord.APP_RECEIVE;
            String targetProcess = info.activityInfo.processName;
            r.curComponent = new ComponentName(
                    info.activityInfo.applicationInfo.packageName,
                    info.activityInfo.name);
            r.curReceiver = info.activityInfo;

            // Is this receiver's application already running?
            ProcessRecord app = getProcessRecordLocked(targetProcess,
                    info.activityInfo.applicationInfo.uid);
            if (app != null && app.thread != null) {
                try {
                    processCurBroadcastLocked(r, app);
                    return;
                } catch (RemoteException e) {
                    Slog.w(TAG, "Exception when sending broadcast to "
                          + r.curComponent, e);
                }

                // If a dead object exception was thrown -- fall through to
                // restart the application.
            }

            // Not running -- get it started, to be executed when the app comes up.
            if ((r.curApp=startProcessLocked(targetProcess,
                    info.activityInfo.applicationInfo, true,
                    r.intent.getFlags() | Intent.FLAG_FROM_BACKGROUND,
                    "broadcast", r.curComponent,
                    (r.intent.getFlags()&Intent.FLAG_RECEIVER_BOOT_UPGRADE) != 0))
                            == null) {
                // Ah, this recipient is unavailable.  Finish it if necessary,
                // and mark the broadcast record as ready for the next.
                Slog.w(TAG, "Unable to launch app "
                        + info.activityInfo.applicationInfo.packageName + "/"
                        + info.activityInfo.applicationInfo.uid + " for broadcast "
                        + r.intent + ": process is bad");
                logBroadcastReceiverDiscard(r);
                finishReceiverLocked(r.receiver, r.resultCode, r.resultData,
                        r.resultExtras, r.resultAbort, true);
                scheduleBroadcastsLocked();
                r.state = BroadcastRecord.IDLE;
                return;
            }

            mPendingBroadcast = r;
        }
    }

    // =========================================================
    // INSTRUMENTATION
    // =========================================================

    public boolean startInstrumentation(ComponentName className,
            String profileFile, int flags, Bundle arguments,
            IInstrumentationWatcher watcher) {
        // Refuse possible leaked file descriptors
        if (arguments != null && arguments.hasFileDescriptors()) {
            throw new IllegalArgumentException("File descriptors passed in Bundle");
        }

        synchronized(this) {
            InstrumentationInfo ii = null;
            ApplicationInfo ai = null;
            try {
                ii = mContext.getPackageManager().getInstrumentationInfo(
                    className, STOCK_PM_FLAGS);
                ai = mContext.getPackageManager().getApplicationInfo(
                    ii.targetPackage, STOCK_PM_FLAGS);
            } catch (PackageManager.NameNotFoundException e) {
            }
            if (ii == null) {
                reportStartInstrumentationFailure(watcher, className,
                        "Unable to find instrumentation info for: " + className);
                return false;
            }
            if (ai == null) {
                reportStartInstrumentationFailure(watcher, className,
                        "Unable to find instrumentation target package: " + ii.targetPackage);
                return false;
            }

            int match = mContext.getPackageManager().checkSignatures(
                    ii.targetPackage, ii.packageName);
            if (match < 0 && match != PackageManager.SIGNATURE_FIRST_NOT_SIGNED) {
                String msg = "Permission Denial: starting instrumentation "
                        + className + " from pid="
                        + Binder.getCallingPid()
                        + ", uid=" + Binder.getCallingPid()
                        + " not allowed because package " + ii.packageName
                        + " does not have a signature matching the target "
                        + ii.targetPackage;
                reportStartInstrumentationFailure(watcher, className, msg);
                throw new SecurityException(msg);
            }

            final long origId = Binder.clearCallingIdentity();
            forceStopPackageLocked(ii.targetPackage, -1, true, false, true);
            ProcessRecord app = addAppLocked(ai);
            app.instrumentationClass = className;
            app.instrumentationInfo = ai;
            app.instrumentationProfileFile = profileFile;
            app.instrumentationArguments = arguments;
            app.instrumentationWatcher = watcher;
            app.instrumentationResultClass = className;
            Binder.restoreCallingIdentity(origId);
        }

        return true;
    }
    
    /**
     * Report errors that occur while attempting to start Instrumentation.  Always writes the 
     * error to the logs, but if somebody is watching, send the report there too.  This enables
     * the "am" command to report errors with more information.
     * 
     * @param watcher The IInstrumentationWatcher.  Null if there isn't one.
     * @param cn The component name of the instrumentation.
     * @param report The error report.
     */
    private void reportStartInstrumentationFailure(IInstrumentationWatcher watcher, 
            ComponentName cn, String report) {
        Slog.w(TAG, report);
        try {
            if (watcher != null) {
                Bundle results = new Bundle();
                results.putString(Instrumentation.REPORT_KEY_IDENTIFIER, "ActivityManagerService");
                results.putString("Error", report);
                watcher.instrumentationStatus(cn, -1, results);
            }
        } catch (RemoteException e) {
            Slog.w(TAG, e);
        }
    }

    void finishInstrumentationLocked(ProcessRecord app, int resultCode, Bundle results) {
        if (app.instrumentationWatcher != null) {
            try {
                // NOTE:  IInstrumentationWatcher *must* be oneway here
                app.instrumentationWatcher.instrumentationFinished(
                    app.instrumentationClass,
                    resultCode,
                    results);
            } catch (RemoteException e) {
            }
        }
        app.instrumentationWatcher = null;
        app.instrumentationClass = null;
        app.instrumentationInfo = null;
        app.instrumentationProfileFile = null;
        app.instrumentationArguments = null;

        forceStopPackageLocked(app.processName, -1, false, false, true);
    }

    public void finishInstrumentation(IApplicationThread target,
            int resultCode, Bundle results) {
        // Refuse possible leaked file descriptors
        if (results != null && results.hasFileDescriptors()) {
            throw new IllegalArgumentException("File descriptors passed in Intent");
        }

        synchronized(this) {
            ProcessRecord app = getRecordForAppLocked(target);
            if (app == null) {
                Slog.w(TAG, "finishInstrumentation: no app for " + target);
                return;
            }
            final long origId = Binder.clearCallingIdentity();
            finishInstrumentationLocked(app, resultCode, results);
            Binder.restoreCallingIdentity(origId);
        }
    }

    // =========================================================
    // CONFIGURATION
    // =========================================================
    
    public ConfigurationInfo getDeviceConfigurationInfo() {
        ConfigurationInfo config = new ConfigurationInfo();
        synchronized (this) {
            config.reqTouchScreen = mConfiguration.touchscreen;
            config.reqKeyboardType = mConfiguration.keyboard;
            config.reqNavigation = mConfiguration.navigation;
            if (mConfiguration.navigation == Configuration.NAVIGATION_DPAD
                    || mConfiguration.navigation == Configuration.NAVIGATION_TRACKBALL) {
                config.reqInputFeatures |= ConfigurationInfo.INPUT_FEATURE_FIVE_WAY_NAV;
            }
            if (mConfiguration.keyboard != Configuration.KEYBOARD_UNDEFINED
                    && mConfiguration.keyboard != Configuration.KEYBOARD_NOKEYS) {
                config.reqInputFeatures |= ConfigurationInfo.INPUT_FEATURE_HARD_KEYBOARD;
            }
            config.reqGlEsVersion = GL_ES_VERSION;
        }
        return config;
    }

    public Configuration getConfiguration() {
        Configuration ci;
        synchronized(this) {
            ci = new Configuration(mConfiguration);
        }
        return ci;
    }

    public void updateConfiguration(Configuration values) {
        enforceCallingPermission(android.Manifest.permission.CHANGE_CONFIGURATION,
                "updateConfiguration()");

        synchronized(this) {
            if (values == null && mWindowManager != null) {
                // sentinel: fetch the current configuration from the window manager
                values = mWindowManager.computeNewConfiguration();
            }
            
            final long origId = Binder.clearCallingIdentity();
            updateConfigurationLocked(values, null);
            Binder.restoreCallingIdentity(origId);
        }
    }

    /**
     * Do either or both things: (1) change the current configuration, and (2)
     * make sure the given activity is running with the (now) current
     * configuration.  Returns true if the activity has been left running, or
     * false if <var>starting is being destroyed to match the new
     * configuration.
     */
    public boolean updateConfigurationLocked(Configuration values,
            HistoryRecord starting) {
        int changes = 0;
        
        boolean kept = true;
        
        if (values != null) {
            Configuration newConfig = new Configuration(mConfiguration);
            changes = newConfig.updateFrom(values);
            if (changes != 0) {
                if (DEBUG_SWITCH || DEBUG_CONFIGURATION) {
                    Slog.i(TAG, "Updating configuration to: " + values);
                }
                
                EventLog.writeEvent(EventLogTags.CONFIGURATION_CHANGED, changes);

                if (values.locale != null) {
                    saveLocaleLocked(values.locale, 
                                     !values.locale.equals(mConfiguration.locale),
                                     values.userSetLocale);
                }

                mConfigurationSeq++;
                if (mConfigurationSeq <= 0) {
                    mConfigurationSeq = 1;
                }
                newConfig.seq = mConfigurationSeq;
                mConfiguration = newConfig;
                Slog.i(TAG, "Config changed: " + newConfig);
                
                AttributeCache ac = AttributeCache.instance();
                if (ac != null) {
                    ac.updateConfiguration(mConfiguration);
                }

                if (Settings.System.hasInterestingConfigurationChanges(changes)) {
                    Message msg = mHandler.obtainMessage(UPDATE_CONFIGURATION_MSG);
                    msg.obj = new Configuration(mConfiguration);
                    mHandler.sendMessage(msg);
                }
        
                for (int i=mLruProcesses.size()-1; i>=0; i--) {
                    ProcessRecord app = mLruProcesses.get(i);
                    try {
                        if (app.thread != null) {
                            if (DEBUG_CONFIGURATION) Slog.v(TAG, "Sending to proc "
                                    + app.processName + " new config " + mConfiguration);
                            app.thread.scheduleConfigurationChanged(mConfiguration);
                        }
                    } catch (Exception e) {
                    }
                }
                Intent intent = new Intent(Intent.ACTION_CONFIGURATION_CHANGED);
                intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY
                        | Intent.FLAG_RECEIVER_REPLACE_PENDING);
                broadcastIntentLocked(null, null, intent, null, null, 0, null, null,
                        null, false, false, MY_PID, Process.SYSTEM_UID);
                if ((changes&ActivityInfo.CONFIG_LOCALE) != 0) {
                    broadcastIntentLocked(null, null,
                            new Intent(Intent.ACTION_LOCALE_CHANGED),
                            null, null, 0, null, null,
                            null, false, false, MY_PID, Process.SYSTEM_UID);
                }
            }
        }
        
        if (changes != 0 && starting == null) {
            // If the configuration changed, and the caller is not already
            // in the process of starting an activity, then find the top
            // activity to check if its configuration needs to change.
            starting = topRunningActivityLocked(null);
        }
        
        if (starting != null) {
            kept = ensureActivityConfigurationLocked(starting, changes);
            if (kept) {
                // If this didn't result in the starting activity being
                // destroyed, then we need to make sure at this point that all
                // other activities are made visible.
                if (DEBUG_SWITCH) Slog.i(TAG, "Config didn't destroy " + starting
                        + ", ensuring others are correct.");
                ensureActivitiesVisibleLocked(starting, changes);
            }
        }
        
        if (values != null && mWindowManager != null) {
            mWindowManager.setNewConfiguration(mConfiguration);
        }
        
        return kept;
    }

    private final boolean relaunchActivityLocked(HistoryRecord r,
            int changes, boolean andResume) {
        List<ResultInfo> results = null;
        List<Intent> newIntents = null;
        if (andResume) {
            results = r.results;
            newIntents = r.newIntents;
        }
        if (DEBUG_SWITCH) Slog.v(TAG, "Relaunching: " + r
                + " with results=" + results + " newIntents=" + newIntents
                + " andResume=" + andResume);
        EventLog.writeEvent(andResume ? EventLogTags.AM_RELAUNCH_RESUME_ACTIVITY
                : EventLogTags.AM_RELAUNCH_ACTIVITY, System.identityHashCode(r),
                r.task.taskId, r.shortComponentName);
        
        r.startFreezingScreenLocked(r.app, 0);
        
        try {
            if (DEBUG_SWITCH) Slog.i(TAG, "Switch is restarting resumed " + r);
            r.app.thread.scheduleRelaunchActivity(r, results, newIntents,
                    changes, !andResume, mConfiguration);
            // Note: don't need to call pauseIfSleepingLocked() here, because
            // the caller will only pass in 'andResume' if this activity is
            // currently resumed, which implies we aren't sleeping.
        } catch (RemoteException e) {
            return false;
        }

        if (andResume) {
            r.results = null;
            r.newIntents = null;
            reportResumedActivityLocked(r);
        }

        return true;
    }

    /**
     * Make sure the given activity matches the current configuration.  Returns
     * false if the activity had to be destroyed.  Returns true if the
     * configuration is the same, or the activity will remain running as-is
     * for whatever reason.  Ensures the HistoryRecord is updated with the
     * correct configuration and all other bookkeeping is handled.
     */
    private final boolean ensureActivityConfigurationLocked(HistoryRecord r,
            int globalChanges) {
        if (mConfigWillChange) {
            if (DEBUG_SWITCH || DEBUG_CONFIGURATION) Slog.v(TAG,
                    "Skipping config check (will change): " + r);
            return true;
        }
        
        if (DEBUG_SWITCH || DEBUG_CONFIGURATION) Slog.v(TAG,
                "Ensuring correct configuration: " + r);
        
        // Short circuit: if the two configurations are the exact same
        // object (the common case), then there is nothing to do.
        Configuration newConfig = mConfiguration;
        if (r.configuration == newConfig) {
            if (DEBUG_SWITCH || DEBUG_CONFIGURATION) Slog.v(TAG,
                    "Configuration unchanged in " + r);
            return true;
        }
        
        // We don't worry about activities that are finishing.
        if (r.finishing) {
            if (DEBUG_SWITCH || DEBUG_CONFIGURATION) Slog.v(TAG,
                    "Configuration doesn't matter in finishing " + r);
            r.stopFreezingScreenLocked(false);
            return true;
        }
        
        // Okay we now are going to make this activity have the new config.
        // But then we need to figure out how it needs to deal with that.
        Configuration oldConfig = r.configuration;
        r.configuration = newConfig;
        
        // If the activity isn't currently running, just leave the new
        // configuration and it will pick that up next time it starts.
        if (r.app == null || r.app.thread == null) {
            if (DEBUG_SWITCH || DEBUG_CONFIGURATION) Slog.v(TAG,
                    "Configuration doesn't matter not running " + r);
            r.stopFreezingScreenLocked(false);
            return true;
        }
        
        // If the activity isn't persistent, there is a chance we will
        // need to restart it.
        if (!r.persistent) {

            // Figure out what has changed between the two configurations.
            int changes = oldConfig.diff(newConfig);
            if (DEBUG_SWITCH || DEBUG_CONFIGURATION) {
                Slog.v(TAG, "Checking to restart " + r.info.name + ": changed=0x"
                        + Integer.toHexString(changes) + ", handles=0x"
                        + Integer.toHexString(r.info.configChanges)
                        + ", newConfig=" + newConfig);
            }
            if ((changes&(~r.info.configChanges)) != 0) {
                // Aha, the activity isn't handling the change, so DIE DIE DIE.
                r.configChangeFlags |= changes;
                r.startFreezingScreenLocked(r.app, globalChanges);
                if (r.app == null || r.app.thread == null) {
                    if (DEBUG_SWITCH || DEBUG_CONFIGURATION) Slog.v(TAG,
                            "Switch is destroying non-running " + r);
                    destroyActivityLocked(r, true);
                } else if (r.state == ActivityState.PAUSING) {
                    // A little annoying: we are waiting for this activity to
                    // finish pausing.  Let's not do anything now, but just
                    // flag that it needs to be restarted when done pausing.
                    if (DEBUG_SWITCH || DEBUG_CONFIGURATION) Slog.v(TAG,
                            "Switch is skipping already pausing " + r);
                    r.configDestroy = true;
                    return true;
                } else if (r.state == ActivityState.RESUMED) {
                    // Try to optimize this case: the configuration is changing
                    // and we need to restart the top, resumed activity.
                    // Instead of doing the normal handshaking, just say
                    // "restart!".
                    if (DEBUG_SWITCH || DEBUG_CONFIGURATION) Slog.v(TAG,
                            "Switch is restarting resumed " + r);
                    relaunchActivityLocked(r, r.configChangeFlags, true);
                    r.configChangeFlags = 0;
                } else {
                    if (DEBUG_SWITCH || DEBUG_CONFIGURATION) Slog.v(TAG,
                            "Switch is restarting non-resumed " + r);
                    relaunchActivityLocked(r, r.configChangeFlags, false);
                    r.configChangeFlags = 0;
                }
                
                // All done...  tell the caller we weren't able to keep this
                // activity around.
                return false;
            }
        }
        
        // Default case: the activity can handle this new configuration, so
        // hand it over.  Note that we don't need to give it the new
        // configuration, since we always send configuration changes to all
        // process when they happen so it can just use whatever configuration
        // it last got.
        if (r.app != null && r.app.thread != null) {
            try {
                if (DEBUG_CONFIGURATION) Slog.v(TAG, "Sending new config to " + r);
                r.app.thread.scheduleActivityConfigurationChanged(r);
            } catch (RemoteException e) {
                // If process died, whatever.
            }
        }
        r.stopFreezingScreenLocked(false);
        
        return true;
    }
    
    /**
     * Save the locale.  You must be inside a synchronized (this) block.
     */
    private void saveLocaleLocked(Locale l, boolean isDiff, boolean isPersist) {
        if(isDiff) {
            SystemProperties.set("user.language", l.getLanguage());
            SystemProperties.set("user.region", l.getCountry());
        } 

        if(isPersist) {
            SystemProperties.set("persist.sys.language", l.getLanguage());
            SystemProperties.set("persist.sys.country", l.getCountry());
            SystemProperties.set("persist.sys.localevar", l.getVariant());
        }
    }

    // =========================================================
    // LIFETIME MANAGEMENT
    // =========================================================

    private final int computeOomAdjLocked(ProcessRecord app, int hiddenAdj,
            ProcessRecord TOP_APP, boolean recursed) {
        if (mAdjSeq == app.adjSeq) {
            // This adjustment has already been computed.  If we are calling
            // from the top, we may have already computed our adjustment with
            // an earlier hidden adjustment that isn't really for us... if
            // so, use the new hidden adjustment.
            if (!recursed && app.hidden) {
                app.curAdj = hiddenAdj;
            }
            return app.curAdj;
        }

        if (app.thread == null) {
            app.adjSeq = mAdjSeq;
            app.curSchedGroup = Process.THREAD_GROUP_BG_NONINTERACTIVE;
            return (app.curAdj=EMPTY_APP_ADJ);
        }

        if (app.maxAdj <= FOREGROUND_APP_ADJ) {
            // The max adjustment doesn't allow this app to be anything
            // below foreground, so it is not worth doing work for it.
            app.adjType = "fixed";
            app.adjSeq = mAdjSeq;
            app.curRawAdj = app.maxAdj;
            app.curSchedGroup = Process.THREAD_GROUP_DEFAULT;
            return (app.curAdj=app.maxAdj);
       }
        
        app.adjTypeCode = ActivityManager.RunningAppProcessInfo.REASON_UNKNOWN;
        app.adjSource = null;
        app.adjTarget = null;
        app.empty = false;
        app.hidden = false;

        // Determine the importance of the process, starting with most
        // important to least, and assign an appropriate OOM adjustment.
        int adj;
        int schedGroup;
        int N;
        if (app == TOP_APP) {
            // The last app on the list is the foreground app.
            adj = FOREGROUND_APP_ADJ;
            schedGroup = Process.THREAD_GROUP_DEFAULT;
            app.adjType = "top-activity";
        } else if (app.instrumentationClass != null) {
            // Don't want to kill running instrumentation.
            adj = FOREGROUND_APP_ADJ;
            schedGroup = Process.THREAD_GROUP_DEFAULT;
            app.adjType = "instrumentation";
        } else if (app.persistentActivities > 0) {
            // Special persistent activities...  shouldn't be used these days.
            adj = FOREGROUND_APP_ADJ;
            schedGroup = Process.THREAD_GROUP_DEFAULT;
            app.adjType = "persistent";
        } else if (app.curReceiver != null ||
                (mPendingBroadcast != null && mPendingBroadcast.curApp == app)) {
            // An app that is currently receiving a broadcast also
            // counts as being in the foreground.
            adj = FOREGROUND_APP_ADJ;
            schedGroup = Process.THREAD_GROUP_DEFAULT;
            app.adjType = "broadcast";
        } else if (app.executingServices.size() > 0) {
            // An app that is currently executing a service callback also
            // counts as being in the foreground.
            adj = FOREGROUND_APP_ADJ;
            schedGroup = Process.THREAD_GROUP_DEFAULT;
            app.adjType = "exec-service";
        } else if (app.foregroundServices) {
            // The user is aware of this app, so make it visible.
            adj = VISIBLE_APP_ADJ;
            schedGroup = Process.THREAD_GROUP_DEFAULT;
            app.adjType = "foreground-service";
        } else if (app.forcingToForeground != null) {
            // The user is aware of this app, so make it visible.
            adj = VISIBLE_APP_ADJ;
            schedGroup = Process.THREAD_GROUP_DEFAULT;
            app.adjType = "force-foreground";
            app.adjSource = app.forcingToForeground;
        } else if (app == mHomeProcess) {
            // This process is hosting what we currently consider to be the
            // home app, so we don't want to let it go into the background.
            adj = HOME_APP_ADJ;
            schedGroup = Process.THREAD_GROUP_BG_NONINTERACTIVE;
            app.adjType = "home";
        } else if ((N=app.activities.size()) != 0) {
            // This app is in the background with paused activities.
            app.hidden = true;
            adj = hiddenAdj;
            schedGroup = Process.THREAD_GROUP_BG_NONINTERACTIVE;
            app.adjType = "bg-activities";
            N = app.activities.size();
            for (int j=0; j<N; j++) {
                if (((HistoryRecord)app.activities.get(j)).visible) {
                    // This app has a visible activity!
                    app.hidden = false;
                    adj = VISIBLE_APP_ADJ;
                    schedGroup = Process.THREAD_GROUP_DEFAULT;
                    app.adjType = "visible";
                    break;
                }
            }
        } else {
            // A very not-needed process.  If this is lower in the lru list,
            // we will push it in to the empty bucket.
            app.hidden = true;
            app.empty = true;
            schedGroup = Process.THREAD_GROUP_BG_NONINTERACTIVE;
            adj = hiddenAdj;
            app.adjType = "bg-empty";
        }

        //Slog.i(TAG, "OOM " + app + ": initial adj=" + adj);
        
        // By default, we use the computed adjustment.  It may be changed if
        // there are applications dependent on our services or providers, but
        // this gives us a baseline and makes sure we don't get into an
        // infinite recursion.
        app.adjSeq = mAdjSeq;
        app.curRawAdj = adj;

        if (mBackupTarget != null && app == mBackupTarget.app) {
            // If possible we want to avoid killing apps while they're being backed up
            if (adj > BACKUP_APP_ADJ) {
                if (DEBUG_BACKUP) Slog.v(TAG, "oom BACKUP_APP_ADJ for " + app);
                adj = BACKUP_APP_ADJ;
                app.adjType = "backup";
                app.hidden = false;
            }
        }

        if (app.services.size() != 0 && (adj > FOREGROUND_APP_ADJ
                || schedGroup == Process.THREAD_GROUP_BG_NONINTERACTIVE)) {
            final long now = SystemClock.uptimeMillis();
            // This process is more important if the top activity is
            // bound to the service.
            Iterator jt = app.services.iterator();
            while (jt.hasNext() && adj > FOREGROUND_APP_ADJ) {
                ServiceRecord s = (ServiceRecord)jt.next();
                if (s.startRequested) {
                    if (now < (s.lastActivity+MAX_SERVICE_INACTIVITY)) {
                        // This service has seen some activity within
                        // recent memory, so we will keep its process ahead
                        // of the background processes.
                        if (adj > SECONDARY_SERVER_ADJ) {
                            adj = SECONDARY_SERVER_ADJ;
                            app.adjType = "started-services";
                            app.hidden = false;
                        }
                    }
                    // If we have let the service slide into the background
                    // state, still have some text describing what it is doing
                    // even though the service no longer has an impact.
                    if (adj > SECONDARY_SERVER_ADJ) {
                        app.adjType = "started-bg-services";
                    }
                }
                if (s.connections.size() > 0 && (adj > FOREGROUND_APP_ADJ
                        || schedGroup == Process.THREAD_GROUP_BG_NONINTERACTIVE)) {
                    Iterator<ConnectionRecord> kt
                            = s.connections.values().iterator();
                    while (kt.hasNext() && adj > FOREGROUND_APP_ADJ) {
                        // XXX should compute this based on the max of
                        // all connected clients.
                        ConnectionRecord cr = kt.next();
                        if (cr.binding.client == app) {
                            // Binding to ourself is not interesting.
                            continue;
                        }
                        if ((cr.flags&Context.BIND_AUTO_CREATE) != 0) {
                            ProcessRecord client = cr.binding.client;
                            int myHiddenAdj = hiddenAdj;
                            if (myHiddenAdj > client.hiddenAdj) {
                                if (client.hiddenAdj > VISIBLE_APP_ADJ) {
                                    myHiddenAdj = client.hiddenAdj;
                                } else {
                                    myHiddenAdj = VISIBLE_APP_ADJ;
                                }
                            }
                            int clientAdj = computeOomAdjLocked(
                                client, myHiddenAdj, TOP_APP, true);
                            if (adj > clientAdj) {
                                adj = clientAdj > VISIBLE_APP_ADJ
                                        ? clientAdj : VISIBLE_APP_ADJ;
                                if (!client.hidden) {
                                    app.hidden = false;
                                }
                                app.adjType = "service";
                                app.adjTypeCode = ActivityManager.RunningAppProcessInfo
                                        .REASON_SERVICE_IN_USE;
                                app.adjSource = cr.binding.client;
                                app.adjTarget = s.serviceInfo.name;
                            }
                            if ((cr.flags&Context.BIND_NOT_FOREGROUND) == 0) {
                                if (client.curSchedGroup == Process.THREAD_GROUP_DEFAULT) {
                                    schedGroup = Process.THREAD_GROUP_DEFAULT;
                                }
                            }
                        }
                        HistoryRecord a = cr.activity;
                        //if (a != null) {
                        //    Slog.i(TAG, "Connection to " + a ": state=" + a.state);
                        //}
                        if (a != null && adj > FOREGROUND_APP_ADJ &&
                                (a.state == ActivityState.RESUMED
                                 || a.state == ActivityState.PAUSING)) {
                            adj = FOREGROUND_APP_ADJ;
                            schedGroup = Process.THREAD_GROUP_DEFAULT;
                            app.hidden = false;
                            app.adjType = "service";
                            app.adjTypeCode = ActivityManager.RunningAppProcessInfo
                                    .REASON_SERVICE_IN_USE;
                            app.adjSource = a;
                            app.adjTarget = s.serviceInfo.name;
                        }
                    }
                }
            }
            
            // Finally, f this process has active services running in it, we
            // would like to avoid killing it unless it would prevent the current
            // application from running.  By default we put the process in
            // with the rest of the background processes; as we scan through
            // its services we may bump it up from there.
            if (adj > hiddenAdj) {
                adj = hiddenAdj;
                app.hidden = false;
                app.adjType = "bg-services";
            }
        }

        if (app.pubProviders.size() != 0 && (adj > FOREGROUND_APP_ADJ
                || schedGroup == Process.THREAD_GROUP_BG_NONINTERACTIVE)) {
            Iterator jt = app.pubProviders.values().iterator();
            while (jt.hasNext() && (adj > FOREGROUND_APP_ADJ
                    || schedGroup == Process.THREAD_GROUP_BG_NONINTERACTIVE)) {
                ContentProviderRecord cpr = (ContentProviderRecord)jt.next();
                if (cpr.clients.size() != 0) {
                    Iterator<ProcessRecord> kt = cpr.clients.iterator();
                    while (kt.hasNext() && adj > FOREGROUND_APP_ADJ) {
                        ProcessRecord client = kt.next();
                        if (client == app) {
                            // Being our own client is not interesting.
                            continue;
                        }
                        int myHiddenAdj = hiddenAdj;
                        if (myHiddenAdj > client.hiddenAdj) {
                            if (client.hiddenAdj > FOREGROUND_APP_ADJ) {
                                myHiddenAdj = client.hiddenAdj;
                            } else {
                                myHiddenAdj = FOREGROUND_APP_ADJ;
                            }
                        }
                        int clientAdj = computeOomAdjLocked(
                            client, myHiddenAdj, TOP_APP, true);
                        if (adj > clientAdj) {
                            adj = clientAdj > FOREGROUND_APP_ADJ
                                    ? clientAdj : FOREGROUND_APP_ADJ;
                            if (!client.hidden) {
                                app.hidden = false;
                            }
                            app.adjType = "provider";
                            app.adjTypeCode = ActivityManager.RunningAppProcessInfo
                                    .REASON_PROVIDER_IN_USE;
                            app.adjSource = client;
                            app.adjTarget = cpr.info.name;
                        }
                        if (client.curSchedGroup == Process.THREAD_GROUP_DEFAULT) {
                            schedGroup = Process.THREAD_GROUP_DEFAULT;
                        }
                    }
                }
                // If the provider has external (non-framework) process
                // dependencies, ensure that its adjustment is at least
                // FOREGROUND_APP_ADJ.
                if (cpr.externals != 0) {
                    if (adj > FOREGROUND_APP_ADJ) {
                        adj = FOREGROUND_APP_ADJ;
                        schedGroup = Process.THREAD_GROUP_DEFAULT;
                        app.hidden = false;
                        app.adjType = "provider";
                        app.adjTarget = cpr.info.name;
                    }
                }
            }
        }

        app.curRawAdj = adj;
        
        //Slog.i(TAG, "OOM ADJ " + app + ": pid=" + app.pid +
        //      " adj=" + adj + " curAdj=" + app.curAdj + " maxAdj=" + app.maxAdj);
        if (adj > app.maxAdj) {
            adj = app.maxAdj;
            if (app.maxAdj <= VISIBLE_APP_ADJ) {
                schedGroup = Process.THREAD_GROUP_DEFAULT;
            }
        }

        app.curAdj = adj;
        app.curSchedGroup = schedGroup;
        
        return adj;
    }

    /**
     * Ask a given process to GC right now.
     */
    final void performAppGcLocked(ProcessRecord app) {
        try {
            app.lastRequestedGc = SystemClock.uptimeMillis();
            if (app.thread != null) {
                if (app.reportLowMemory) {
                    app.reportLowMemory = false;
                    app.thread.scheduleLowMemory();
                } else {
                    app.thread.processInBackground();
                }
            }
        } catch (Exception e) {
            // whatever.
        }
    }
    
    /**
     * Returns true if things are idle enough to perform GCs.
     */
    private final boolean canGcNowLocked() {
        return mParallelBroadcasts.size() == 0
                && mOrderedBroadcasts.size() == 0
                && (mSleeping || (mResumedActivity != null &&
                        mResumedActivity.idle));
    }
    
    /**
     * Perform GCs on all processes that are waiting for it, but only
     * if things are idle.
     */
    final void performAppGcsLocked() {
        final int N = mProcessesToGc.size();
        if (N <= 0) {
            return;
        }
        if (canGcNowLocked()) {
            while (mProcessesToGc.size() > 0) {
                ProcessRecord proc = mProcessesToGc.remove(0);
                if (proc.curRawAdj > VISIBLE_APP_ADJ || proc.reportLowMemory) {
                    if ((proc.lastRequestedGc+GC_MIN_INTERVAL)
                            <= SystemClock.uptimeMillis()) {
                        // To avoid spamming the system, we will GC processes one
                        // at a time, waiting a few seconds between each.
                        performAppGcLocked(proc);
                        scheduleAppGcsLocked();
                        return;
                    } else {
                        // It hasn't been long enough since we last GCed this
                        // process...  put it in the list to wait for its time.
                        addProcessToGcListLocked(proc);
                        break;
                    }
                }
            }
            
            scheduleAppGcsLocked();
        }
    }
    
    /**
     * If all looks good, perform GCs on all processes waiting for them.
     */
    final void performAppGcsIfAppropriateLocked() {
        if (canGcNowLocked()) {
            performAppGcsLocked();
            return;
        }
        // Still not idle, wait some more.
        scheduleAppGcsLocked();
    }

    /**
     * Schedule the execution of all pending app GCs.
     */
    final void scheduleAppGcsLocked() {
        mHandler.removeMessages(GC_BACKGROUND_PROCESSES_MSG);
        
        if (mProcessesToGc.size() > 0) {
            // Schedule a GC for the time to the next process.
            ProcessRecord proc = mProcessesToGc.get(0);
            Message msg = mHandler.obtainMessage(GC_BACKGROUND_PROCESSES_MSG);
            
            long when = mProcessesToGc.get(0).lastRequestedGc + GC_MIN_INTERVAL;
            long now = SystemClock.uptimeMillis();
            if (when < (now+GC_TIMEOUT)) {
                when = now + GC_TIMEOUT;
            }
            mHandler.sendMessageAtTime(msg, when);
        }
    }
    
    /**
     * Add a process to the array of processes waiting to be GCed.  Keeps the
     * list in sorted order by the last GC time.  The process can't already be
     * on the list.
     */
    final void addProcessToGcListLocked(ProcessRecord proc) {
        boolean added = false;
        for (int i=mProcessesToGc.size()-1; i>=0; i--) {
            if (mProcessesToGc.get(i).lastRequestedGc <
                    proc.lastRequestedGc) {
                added = true;
                mProcessesToGc.add(i+1, proc);
                break;
            }
        }
        if (!added) {
            mProcessesToGc.add(0, proc);
        }
    }
    
    /**
     * Set up to ask a process to GC itself.  This will either do it
     * immediately, or put it on the list of processes to gc the next
     * time things are idle.
     */
    final void scheduleAppGcLocked(ProcessRecord app) {
        long now = SystemClock.uptimeMillis();
        if ((app.lastRequestedGc+GC_MIN_INTERVAL) > now) {
            return;
        }
        if (!mProcessesToGc.contains(app)) {
            addProcessToGcListLocked(app);
            scheduleAppGcsLocked();
        }
    }

    private final boolean updateOomAdjLocked(
        ProcessRecord app, int hiddenAdj, ProcessRecord TOP_APP) {
        app.hiddenAdj = hiddenAdj;

        if (app.thread == null) {
            return true;
        }

        int adj = computeOomAdjLocked(app, hiddenAdj, TOP_APP, false);

        if ((app.pid != 0 && app.pid != MY_PID) || Process.supportsProcesses()) {
            if (app.curRawAdj != app.setRawAdj) {
                if (app.curRawAdj > FOREGROUND_APP_ADJ
                        && app.setRawAdj <= FOREGROUND_APP_ADJ) {
                    // If this app is transitioning from foreground to
                    // non-foreground, have it do a gc.
                    scheduleAppGcLocked(app);
                } else if (app.curRawAdj >= HIDDEN_APP_MIN_ADJ
                        && app.setRawAdj < HIDDEN_APP_MIN_ADJ) {
                    // Likewise do a gc when an app is moving in to the
                    // background (such as a service stopping).
                    scheduleAppGcLocked(app);
                }
                app.setRawAdj = app.curRawAdj;
            }
            if (adj != app.setAdj) {
                if (Process.setOomAdj(app.pid, adj)) {
                    if (DEBUG_SWITCH || DEBUG_OOM_ADJ) Slog.v(
                        TAG, "Set app " + app.processName +
                        " oom adj to " + adj);
                    app.setAdj = adj;
                } else {
                    return false;
                }
            }
            if (app.setSchedGroup != app.curSchedGroup) {
                app.setSchedGroup = app.curSchedGroup;
                if (DEBUG_SWITCH || DEBUG_OOM_ADJ) Slog.v(TAG,
                        "Setting process group of " + app.processName
                        + " to " + app.curSchedGroup);
                if (true) {
                    long oldId = Binder.clearCallingIdentity();
                    try {
                        Process.setProcessGroup(app.pid, app.curSchedGroup);
                    } catch (Exception e) {
                        Slog.w(TAG, "Failed setting process group of " + app.pid
                                + " to " + app.curSchedGroup);
                        e.printStackTrace();
                    } finally {
                        Binder.restoreCallingIdentity(oldId);
                    }
                }
                if (false) {
                    if (app.thread != null) {
                        try {
                            app.thread.setSchedulingGroup(app.curSchedGroup);
                        } catch (RemoteException e) {
                        }
                    }
                }
            }
        }

        return true;
    }

    private final HistoryRecord resumedAppLocked() {
        HistoryRecord resumedActivity = mResumedActivity;
        if (resumedActivity == null || resumedActivity.app == null) {
            resumedActivity = mPausingActivity;
            if (resumedActivity == null || resumedActivity.app == null) {
                resumedActivity = topRunningActivityLocked(null);
            }
        }
        return resumedActivity;
    }

    private final boolean updateOomAdjLocked(ProcessRecord app) {
        final HistoryRecord TOP_ACT = resumedAppLocked();
        final ProcessRecord TOP_APP = TOP_ACT != null ? TOP_ACT.app : null;
        int curAdj = app.curAdj;
        final boolean wasHidden = app.curAdj >= HIDDEN_APP_MIN_ADJ
            && app.curAdj <= HIDDEN_APP_MAX_ADJ;

        mAdjSeq++;

        final boolean res = updateOomAdjLocked(app, app.hiddenAdj, TOP_APP);
        if (res) {
            final boolean nowHidden = app.curAdj >= HIDDEN_APP_MIN_ADJ
                && app.curAdj <= HIDDEN_APP_MAX_ADJ;
            if (nowHidden != wasHidden) {
                // Changed to/from hidden state, so apps after it in the LRU
                // list may also be changed.
                updateOomAdjLocked();
            }
        }
        return res;
    }

    private final boolean updateOomAdjLocked() {
        boolean didOomAdj = true;
        final HistoryRecord TOP_ACT = resumedAppLocked();
        final ProcessRecord TOP_APP = TOP_ACT != null ? TOP_ACT.app : null;

        if (false) {
            RuntimeException e = new RuntimeException();
            e.fillInStackTrace();
            Slog.i(TAG, "updateOomAdj: top=" + TOP_ACT, e);
        }

        mAdjSeq++;

        // Let's determine how many processes we have running vs.
        // how many slots we have for background processes; we may want
        // to put multiple processes in a slot of there are enough of
        // them.
        int numSlots = HIDDEN_APP_MAX_ADJ - HIDDEN_APP_MIN_ADJ + 1;
        int factor = (mLruProcesses.size()-4)/numSlots;
        if (factor < 1) factor = 1;
        int step = 0;
        int numHidden = 0;
        
        // First try updating the OOM adjustment for each of the
        // application processes based on their current state.
        int i = mLruProcesses.size();
        int curHiddenAdj = HIDDEN_APP_MIN_ADJ;
        while (i > 0) {
            i--;
            ProcessRecord app = mLruProcesses.get(i);
            //Slog.i(TAG, "OOM " + app + ": cur hidden=" + curHiddenAdj);
            if (updateOomAdjLocked(app, curHiddenAdj, TOP_APP)) {
                if (curHiddenAdj < EMPTY_APP_ADJ
                    && app.curAdj == curHiddenAdj) {
                    step++;
                    if (step >= factor) {
                        step = 0;
                        curHiddenAdj++;
                    }
                }
                if (app.curAdj >= HIDDEN_APP_MIN_ADJ) {
                    if (!app.killedBackground) {
                        numHidden++;
                        if (numHidden > MAX_HIDDEN_APPS) {
                            Slog.i(TAG, "No longer want " + app.processName
                                    + " (pid " + app.pid + "): hidden #" + numHidden);
                            EventLog.writeEvent(EventLogTags.AM_KILL, app.pid,
                                    app.processName, app.setAdj, "too many background");
                            app.killedBackground = true;
                            Process.killProcessQuiet(app.pid);
                        }
                    }
                }
            } else {
                didOomAdj = false;
            }
        }

        // If we return false, we will fall back on killing processes to
        // have a fixed limit.  Do this if a limit has been requested; else
        // only return false if one of the adjustments failed.
        return ENFORCE_PROCESS_LIMIT || mProcessLimit > 0 ? false : didOomAdj;
    }

    private final void trimApplications() {
        synchronized (this) {
            int i;

            // First remove any unused application processes whose package
            // has been removed.
            for (i=mRemovedProcesses.size()-1; i>=0; i--) {
                final ProcessRecord app = mRemovedProcesses.get(i);
                if (app.activities.size() == 0
                        && app.curReceiver == null && app.services.size() == 0) {
                    Slog.i(
                        TAG, "Exiting empty application process "
                        + app.processName + " ("
                        + (app.thread != null ? app.thread.asBinder() : null)
                        + ")\n");
                    if (app.pid > 0 && app.pid != MY_PID) {
                        Process.killProcess(app.pid);
                    } else {
                        try {
                            app.thread.scheduleExit();
                        } catch (Exception e) {
                            // Ignore exceptions.
                        }
                    }
                    cleanUpApplicationRecordLocked(app, false, -1);
                    mRemovedProcesses.remove(i);
                    
                    if (app.persistent) {
                        if (app.persistent) {
                            addAppLocked(app.info);
                        }
                    }
                }
            }

            // Now try updating the OOM adjustment for each of the
            // application processes based on their current state.
            // If the setOomAdj() API is not supported, then go with our
            // back-up plan...
            if (!updateOomAdjLocked()) {

                // Count how many processes are running services.
                int numServiceProcs = 0;
                for (i=mLruProcesses.size()-1; i>=0; i--) {
                    final ProcessRecord app = mLruProcesses.get(i);

                    if (app.persistent || app.services.size() != 0
                            || app.curReceiver != null
                            || app.persistentActivities > 0) {
                        // Don't count processes holding services against our
                        // maximum process count.
                        if (localLOGV) Slog.v(
                            TAG, "Not trimming app " + app + " with services: "
                            + app.services);
                        numServiceProcs++;
                    }
                }

                int curMaxProcs = mProcessLimit;
                if (curMaxProcs <= 0) curMaxProcs = MAX_PROCESSES;
                if (mAlwaysFinishActivities) {
                    curMaxProcs = 1;
                }
                curMaxProcs += numServiceProcs;

                // Quit as many processes as we can to get down to the desired
                // process count.  First remove any processes that no longer
                // have activites running in them.
                for (   i=0;
                        i<mLruProcesses.size()
                            && mLruProcesses.size() > curMaxProcs;
                        i++) {
                    final ProcessRecord app = mLruProcesses.get(i);
                    // Quit an application only if it is not currently
                    // running any activities.
                    if (!app.persistent && app.activities.size() == 0
                            && app.curReceiver == null && app.services.size() == 0) {
                        Slog.i(
                            TAG, "Exiting empty application process "
                            + app.processName + " ("
                            + (app.thread != null ? app.thread.asBinder() : null)
                            + ")\n");
                        if (app.pid > 0 && app.pid != MY_PID) {
                            Process.killProcess(app.pid);
                        } else {
                            try {
                                app.thread.scheduleExit();
                            } catch (Exception e) {
                                // Ignore exceptions.
                            }
                        }
                        // todo: For now we assume the application is not buggy
                        // or evil, and will quit as a result of our request.
                        // Eventually we need to drive this off of the death
                        // notification, and kill the process if it takes too long.
                        cleanUpApplicationRecordLocked(app, false, i);
                        i--;
                    }
                }

                // If we still have too many processes, now from the least
                // recently used process we start finishing activities.
                if (Config.LOGV) Slog.v(
                    TAG, "*** NOW HAVE " + mLruProcesses.size() +
                    " of " + curMaxProcs + " processes");
                for (   i=0;
                        i<mLruProcesses.size()
                            && mLruProcesses.size() > curMaxProcs;
                        i++) {
                    final ProcessRecord app = mLruProcesses.get(i);
                    // Quit the application only if we have a state saved for
                    // all of its activities.
                    boolean canQuit = !app.persistent && app.curReceiver == null
                        && app.services.size() == 0
                        && app.persistentActivities == 0;
                    int NUMA = app.activities.size();
                    int j;
                    if (Config.LOGV) Slog.v(
                        TAG, "Looking to quit " + app.processName);
                    for (j=0; j<NUMA && canQuit; j++) {
                        HistoryRecord r = (HistoryRecord)app.activities.get(j);
                        if (Config.LOGV) Slog.v(
                            TAG, "  " + r.intent.getComponent().flattenToShortString()
                            + ": frozen=" + r.haveState + ", visible=" + r.visible);
                        canQuit = (r.haveState || !r.stateNotNeeded)
                                && !r.visible && r.stopped;
                    }
                    if (canQuit) {
                        // Finish all of the activities, and then the app itself.
                        for (j=0; j<NUMA; j++) {
                            HistoryRecord r = (HistoryRecord)app.activities.get(j);
                            if (!r.finishing) {
                                destroyActivityLocked(r, false);
                            }
                            r.resultTo = null;
                        }
                        Slog.i(TAG, "Exiting application process "
                              + app.processName + " ("
                              + (app.thread != null ? app.thread.asBinder() : null)
                              + ")\n");
                        if (app.pid > 0 && app.pid != MY_PID) {
                            Process.killProcess(app.pid);
                        } else {
                            try {
                                app.thread.scheduleExit();
                            } catch (Exception e) {
                                // Ignore exceptions.
                            }
                        }
                        // todo: For now we assume the application is not buggy
                        // or evil, and will quit as a result of our request.
                        // Eventually we need to drive this off of the death
                        // notification, and kill the process if it takes too long.
                        cleanUpApplicationRecordLocked(app, false, i);
                        i--;
                        //dump();
                    }
                }

            }

            int curMaxActivities = MAX_ACTIVITIES;
            if (mAlwaysFinishActivities) {
                curMaxActivities = 1;
            }

            // Finally, if there are too many activities now running, try to
            // finish as many as we can to get back down to the limit.
            for (   i=0;
                    i<mLRUActivities.size()
                        && mLRUActivities.size() > curMaxActivities;
                    i++) {
                final HistoryRecord r
                    = (HistoryRecord)mLRUActivities.get(i);

                // We can finish this one if we have its icicle saved and
                // it is not persistent.
                if ((r.haveState || !r.stateNotNeeded) && !r.visible
                        && r.stopped && !r.persistent && !r.finishing) {
                    final int origSize = mLRUActivities.size();
                    destroyActivityLocked(r, true);

                    // This will remove it from the LRU list, so keep
                    // our index at the same value.  Note that this check to
                    // see if the size changes is just paranoia -- if
                    // something unexpected happens, we don't want to end up
                    // in an infinite loop.
                    if (origSize > mLRUActivities.size()) {
                        i--;
                    }
                }
            }
        }
    }

    /** This method sends the specified signal to each of the persistent apps */
    public void signalPersistentProcesses(int sig) throws RemoteException {
        if (sig != Process.SIGNAL_USR1) {
            throw new SecurityException("Only SIGNAL_USR1 is allowed");
        }

        synchronized (this) {
            if (checkCallingPermission(android.Manifest.permission.SIGNAL_PERSISTENT_PROCESSES)
                    != PackageManager.PERMISSION_GRANTED) {
                throw new SecurityException("Requires permission "
                        + android.Manifest.permission.SIGNAL_PERSISTENT_PROCESSES);
            }

            for (int i = mLruProcesses.size() - 1 ; i >= 0 ; i--) {
                ProcessRecord r = mLruProcesses.get(i);
                if (r.thread != null && r.persistent) {
                    Process.sendSignal(r.pid, sig);
                }
            }
        }
    }

    public boolean profileControl(String process, boolean start,
            String path, ParcelFileDescriptor fd) throws RemoteException {

        try {
            synchronized (this) {
                // note: hijacking SET_ACTIVITY_WATCHER, but should be changed to
                // its own permission.
                if (checkCallingPermission(android.Manifest.permission.SET_ACTIVITY_WATCHER)
                        != PackageManager.PERMISSION_GRANTED) {
                    throw new SecurityException("Requires permission "
                            + android.Manifest.permission.SET_ACTIVITY_WATCHER);
                }
                
                if (start && fd == null) {
                    throw new IllegalArgumentException("null fd");
                }
                
                ProcessRecord proc = null;
                try {
                    int pid = Integer.parseInt(process);
                    synchronized (mPidsSelfLocked) {
                        proc = mPidsSelfLocked.get(pid);
                    }
                } catch (NumberFormatException e) {
                }
                
                if (proc == null) {
                    HashMap<String, SparseArray all
                            = mProcessNames.getMap();
                    SparseArray<ProcessRecord> procs = all.get(process);
                    if (procs != null && procs.size() > 0) {
                        proc = procs.valueAt(0);
                    }
                }
                
                if (proc == null || proc.thread == null) {
                    throw new IllegalArgumentException("Unknown process: " + process);
                }
                
                boolean isSecure = "1".equals(SystemProperties.get(SYSTEM_SECURE, "0"));
                if (isSecure) {
                    if ((proc.info.flags&ApplicationInfo.FLAG_DEBUGGABLE) == 0) {
                        throw new SecurityException("Process not debuggable: " + proc);
                    }
                }
            
                proc.thread.profilerControl(start, path, fd);
                fd = null;
                return true;
            }
        } catch (RemoteException e) {
            throw new IllegalStateException("Process disappeared");
        } finally {
            if (fd != null) {
                try {
                    fd.close();
                } catch (IOException e) {
                }
            }
        }
    }
    
    /** In this method we try to acquire our lock to make sure that we have not deadlocked */
    public void monitor() {
        synchronized (this) { }
    }
}

Other Android examples (source code examples)

Here is a short list of links related to this Android ActivityManagerService.java source code file:

... this post is sponsored by my books ...

#1 New Release!

FP Best Seller

 

new blog posts

 

Copyright 1998-2021 Alvin Alexander, alvinalexander.com
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.