jdk-24/test/hotspot/jtreg/gc/shenandoah/jni/libTestStringCriticalWithDedup.c
2021-07-12 18:54:39 +00:00

40 lines
1.5 KiB
C

/*
* Copyright (c) 2021, Red Hat, Inc. 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.
*
*/
#include <jni.h>
#include <string.h>
#include <stdint.h>
JNIEXPORT jlong JNICALL
Java_TestStringCriticalWithDedup_pin(JNIEnv *env, jclass unused, jstring s) {
const jchar* a = (*env)->GetStringCritical(env, s, NULL);
return (jlong)(uintptr_t)a;
}
JNIEXPORT void JNICALL
Java_TestStringCriticalWithDedup_unpin(JNIEnv *env, jclass unused, jstring s, jlong v) {
jchar* a = (jchar*)(uintptr_t)v;
(*env)->ReleaseStringCritical(env, s, a);
}