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 /* 25 * Native support for TestJNIWeakG1 test. 26 */ 27 28 #include "jni.h" 29 30 static jweak registered = NULL; 31 32 JNIEXPORT void JNICALL 33 Java_TestJNIWeakG1_registerObject(JNIEnv* env, jclass jclazz, jobject value) { 34 // assert registered == NULL 35 registered = (*env)->NewWeakGlobalRef(env, value); 36 } 37 38 JNIEXPORT void JNICALL 39 Java_TestJNIWeakG1_unregisterObject(JNIEnv* env, jclass jclazz) { 40 if (registered != NULL) { 41 (*env)->DeleteWeakGlobalRef(env, registered); 42 registered = NULL; 43 } 44 } 45 46 // Directly return jweak, to be resolved by native call's return value handling. 47 JNIEXPORT jobject JNICALL 48 Java_TestJNIWeakG1_getReturnedWeak(JNIEnv* env, jclass jclazz) { 49 // assert registered != NULL 50 return registered; 51 } 52 53 // Directly resolve jweak and return the result. 54 JNIEXPORT jobject JNICALL 55 Java_TestJNIWeakG1_getResolvedWeak(JNIEnv* env, jclass jclazz) { 56 // assert registered != NULL 57 return (*env)->NewLocalRef(env, registered); 58 }