1 /* 2 * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 #include <jni.h> 25 #include <stdio.h> 26 27 void reduceLocalCapacity(JNIEnv* env) { 28 puts("reduceLocalCapacity: setting to 1"); 29 (*env)->EnsureLocalCapacity(env,1); 30 } 31 32 JNIEXPORT void JNICALL 33 Java_TestCheckedEnsureLocalCapacity_ensureCapacity(JNIEnv *env, 34 jobject unused, 35 jobject target, 36 jint capacity, 37 jint copies) { 38 int i; 39 printf("ensureCapacity: setting to %d\n", capacity); 40 (*env)->EnsureLocalCapacity(env, capacity); // set high 41 reduceLocalCapacity(env); // sets low 42 43 printf("ensureCapacity: creating %d LocalRefs\n", copies); 44 for (i = 0; i < copies; i++) { 45 target = (*env)->NewLocalRef(env, target); 46 } 47 48 puts("ensureCapacity: done"); 49 }