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Java example source code file (LinuxSignals.java)

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

Learn more about this Java project at its project page.

Java - Java tags/keywords

sigbus, sigchld, sigcont, sighup, sigiot, sigkill, sigpipe, sigpoll, sigpwr, sigquit, sigsegv, sigttou, sigwinch, string

The LinuxSignals.java Java example source code

/*
 * Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 *
 */

package sun.jvm.hotspot.runtime.linux;

public class LinuxSignals {
  private static String[] signalNames = {
    "",           /* No signal 0 */
    "SIGHUP",     /* hangup */
    "SIGINT",     /* interrupt (rubout) */
    "SIGQUIT",    /* quit (ASCII FS) */
    "SIGILL",     /* illegal instruction (not reset when caught) */
    "SIGTRAP",    /* trace trap (not reset when caught) */
    "SIGABRT",    /* used by abort, replace SIGIOT in the future */
    "SIGIOT",
    "SIGBUS",
    "SIGFPE",     /* floating point exception */
    "SIGKILL",    /* kill (cannot be caught or ignored) */
    "SIGUSR1",    /* user defined signal 1 */
    "SIGSEGV",    /* segmentation violation */
    "SIGUSR2",    /* user defined signal 2 */
    "SIGPIPE",    /* write on a pipe with no one to read it */
    "SIGALRM",    /* alarm clock */
    "SIGTERM",    /* software termination signal from kill */
    "SIGSTKFLT",
    "SIGCHLD",    /* child status change alias */
    "SIGCONT",    /* stopped process has been continued */
    "SIGSTOP",    /* stop (cannot be caught or ignored) */
    "SIGTSTP",    /* user stop requested from tty */
    "SIGTTIN",    /* background tty read attempted */
    "SIGTTOU",    /* background tty write attempted */
    "SIGURG",     /* urgent socket condition */
    "SIGXCPU",    /* exceeded cpu limit */
    "SIGXFSZ",    /* exceeded file size limit */
    "SIGVTALRM",  /* virtual timer expired */
    "SIGPROF",    /* profiling timer expired */
    "SIGWINCH",   /* window size change */
    "SIGPOLL",    /* pollable event occured */
    "SIGPWR",     /* power-fail restart */
    "SIGSYS"
  };

  public static String getSignalName(int sigNum) {
    if ((sigNum <= 0) || (sigNum >= signalNames.length)) {
      // Probably best to fail in a non-destructive way
      return "<Error: Illegal signal number " + sigNum + ">";
    }
    return signalNames[sigNum];
  }
}

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