1 /*
   2  * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
   3  * Copyright (c) 2017, SAP SE and/or its affiliates. All rights reserved.
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This code is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 only, as
   8  * published by the Free Software Foundation.
   9  *
  10  * This code is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * version 2 for more details (a copy is included in the LICENSE file that
  14  * accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.
  23  */
  24 
  25 #include "jni.h"
  26 
  27 JNIEXPORT jint JNICALL 
  28 Java_TestJNIBlockFullGC_TestCriticalArray0(JNIEnv *env, jclass jCls, jintArray jIn) {
  29   jint *bufIn = NULL;
  30   jint jInLen = (*env)->GetArrayLength(env, jIn);
  31   jint result = 0;
  32   jint i;
  33 
  34   if (jInLen != 0) {
  35     bufIn = (jint*)(*env)->GetPrimitiveArrayCritical(env, jIn, 0);
  36   }
  37 
  38   for (i = 0; i < jInLen; ++i) {
  39     result += bufIn[i]; // result = sum of all array elements
  40   }
  41 
  42   if (bufIn != NULL) {
  43     (*env)->ReleasePrimitiveArrayCritical(env, jIn, bufIn, 0);
  44   }
  45 
  46   return result;
  47 }
  48