Java example source code file (Utilities.h)

This example Java source code file (Utilities.h) 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

jnienv

The Utilities.h Java example source code

/*
 * Copyright (c) 2003, 2007, 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.
 */

/*
 * Copyright 2003 Wily Technology, Inc.
 */

#ifndef _UTILITIES_H_
#define _UTILITIES_H_

#include    <jni.h>
#include    <jvmti.h>

#ifdef __cplusplus
extern "C" {
#endif

/*
 *  This module provides various simple JNI and JVMTI utility functionality.
 */

/*
 *  This allocate must be paired with this deallocate. Used for our own working buffers.
 *  Implementation may vary.
 */
extern void *
allocate(jvmtiEnv * jvmtienv, size_t bytecount);

extern void
deallocate(jvmtiEnv * jvmtienv, void * buffer);


/*
 *  Misc. JNI support
 */
/* convenience wrapper around JNI instanceOf */
extern jboolean
isInstanceofClassName(  JNIEnv*     jnienv,
                        jobject     instance,
                        const char* className);


/* calling this stops the JVM and does not return */
extern void
abortJVM(   JNIEnv *        jnienv,
            const char *    message);


#ifdef __cplusplus
} /* extern "C" */
#endif /* __cplusplus */


#endif