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Java example source code file (MacOSXFramework.m)
The MacOSXFramework.m Java example source code/* * Copyright (c) 2011, 2012, 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. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * 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. */ #include "com_apple_jobjc_MacOSXFramework.h" #include <dlfcn.h> #include <JavaNativeFoundation/JavaNativeFoundation.h> /* * Class: com_apple_jobjc_MacOSXFramework * Method: retainFramework * Signature: (Ljava/lang/String;)J */ JNIEXPORT jlong JNICALL Java_com_apple_jobjc_MacOSXFramework_retainFramework (JNIEnv *env, jclass clazz, jstring frameworkName) { if (frameworkName == NULL) return ptr_to_jlong(NULL); const char *frameworkNameCStr = (*env)->GetStringUTFChars(env, frameworkName, JNI_FALSE); const void *library = dlopen(frameworkNameCStr, RTLD_LOCAL); (*env)->ReleaseStringUTFChars(env, frameworkName, frameworkNameCStr); return ptr_to_jlong(library); } /* * Class: com_apple_jobjc_MacOSXFramework * Method: releaseFramework * Signature: (J)V */ JNIEXPORT void JNICALL Java_com_apple_jobjc_MacOSXFramework_releaseFramework (JNIEnv *env, jclass clazz, jlong frameworkPtr) { dlclose(jlong_to_ptr(frameworkPtr)); } JNIEXPORT void JNICALL Java_com_apple_jobjc_MacOSXFramework_getConstant (JNIEnv *env, jclass clazz, jlong frameworkPtr, jstring constSymbol, jlong retBuffer, jint size) { const char *symbol = (*env)->GetStringUTFChars(env, constSymbol, JNI_FALSE); void *handle = frameworkPtr ? jlong_to_ptr(frameworkPtr) : RTLD_DEFAULT; void *data = dlsym(handle, symbol); (*env)->ReleaseStringUTFChars(env, constSymbol, symbol); if(!data) (*env)->ThrowNew(env, (*env)->FindClass(env, "java/lang/RuntimeException"), dlerror()); else memcpy(jlong_to_ptr(retBuffer), data, (size_t) size); } Other Java examples (source code examples)Here is a short list of links related to this Java MacOSXFramework.m source code file: |
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