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/*
* Copyright (c) 2021, 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.
*/
#include <jni.h>
static jint* arr;
JNIEXPORT jboolean JNICALL
Java_TestCheckedReleaseArrayElements_init(JNIEnv *env,
jclass* clazz,
jintArray target) {
jboolean isCopy;
arr = (*env)->GetIntArrayElements(env, target, &isCopy);
if (arr == NULL) {
(*env)->FatalError(env, "Unexpected NULL return from GetIntArrayElements");
}
if (isCopy == JNI_FALSE) {
(*env)->ReleaseIntArrayElements(env, target, arr, JNI_ABORT);
}
return isCopy;
}
JNIEXPORT void JNICALL
Java_TestCheckedReleaseArrayElements_cleanup(JNIEnv *env,
jclass* clazz,
jintArray target) {
(*env)->ReleaseIntArrayElements(env, target, arr, JNI_ABORT);
}
JNIEXPORT void JNICALL
Java_TestCheckedReleaseArrayElements_fill(JNIEnv *env,
jclass* clazz,
jintArray target,
jint start,
jint count) {
// Update a slice of the raw array
int i;
for (i = start; count > 0; i++, count--) {
arr[i] = i;
}
// Write the results back to target, leaving it usable for future updates
(*env)->ReleaseIntArrayElements(env, target, arr, JNI_COMMIT);
}
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