jdk-24/test/hotspot/jtreg/gc/TestJNIWeak/libTestJNIWeak.c
Kim Barrett 9f334a1640 8240239: Replace ConcurrentGCPhaseManager
Replace ConcurrentGCPhaseManager with ConcurrentGCBreakpoints

Co-authored-by: Per Liden <per.liden@oracle.com>
Reviewed-by: kbarrett, pliden, sangheki
2020-03-06 18:42:13 -05:00

59 lines
2.0 KiB
C

/*
* Copyright (c) 2017, 2020, 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.
*/
/*
* Native support for TestJNIWeak test.
*/
#include "jni.h"
static jweak registered = NULL;
JNIEXPORT void JNICALL
Java_gc_TestJNIWeak_TestJNIWeak_registerObject(JNIEnv* env, jclass jclazz, jobject value) {
// assert registered == NULL
registered = (*env)->NewWeakGlobalRef(env, value);
}
JNIEXPORT void JNICALL
Java_gc_TestJNIWeak_TestJNIWeak_unregisterObject(JNIEnv* env, jclass jclazz) {
if (registered != NULL) {
(*env)->DeleteWeakGlobalRef(env, registered);
registered = NULL;
}
}
// Directly return jweak, to be resolved by native call's return value handling.
JNIEXPORT jobject JNICALL
Java_gc_TestJNIWeak_TestJNIWeak_getReturnedWeak(JNIEnv* env, jclass jclazz) {
// assert registered != NULL
return registered;
}
// Directly resolve jweak and return the result.
JNIEXPORT jobject JNICALL
Java_gc_TestJNIWeak_TestJNIWeak_getResolvedWeak(JNIEnv* env, jclass jclazz) {
// assert registered != NULL
return (*env)->NewLocalRef(env, registered);
}