1 /*
   2  * Copyright (c) 2016, 2018, Red Hat, Inc. All rights reserved.
   3  *
   4  * This code is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU General Public License version 2 only, as
   6  * published by the Free Software Foundation.
   7  *
   8  * This code is distributed in the hope that it will be useful, but WITHOUT
   9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  10  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  11  * version 2 for more details (a copy is included in the LICENSE file that
  12  * accompanied this code).
  13  *
  14  * You should have received a copy of the GNU General Public License version
  15  * 2 along with this work; if not, write to the Free Software Foundation,
  16  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  17  *
  18  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  19  * or visit www.oracle.com if you need additional information or have any
  20  * questions.
  21  *
  22  */
  23 
  24 #include <jni.h>
  25 #include <string.h>
  26 
  27 JNIEXPORT void JNICALL
  28 Java_TestJNICritical_copyAtoB(JNIEnv *env, jclass unused, jintArray a, jintArray b) {
  29   jint len = (*env)->GetArrayLength(env, a);
  30   jint* aa = (*env)->GetPrimitiveArrayCritical(env, a, 0);
  31   jint* bb = (*env)->GetPrimitiveArrayCritical(env, b, 0);
  32   memcpy(bb, aa, len * sizeof(jint));
  33   (*env)->ReleasePrimitiveArrayCritical(env, b, bb, 0);
  34   (*env)->ReleasePrimitiveArrayCritical(env, a, aa, 0);
  35 }