| /* | |
| * Copyright (c) 2003, 2007, 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. Oracle designates this | |
| * particular file as subject to the "Classpath" exception as provided | |
| * by Oracle in the LICENSE file that accompanied this code. | |
| * | |
| * 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. | |
| */ | |
| /* | |
| * Copyright 2003 Wily Technology, Inc. | |
| */ | |
| #ifndef _REENTRANCY_H_ | |
| #define _REENTRANCY_H_ | |
| #include <jni.h> | |
| /* | |
| * This module provides some utility functions to support the "same thread" re-entrancy management. | |
| * Uses JVMTI TLS to store a single bit per thread. | |
| * Non-zero means the thread is already inside; zero means the thread is not inside. | |
| */ | |
| #ifdef __cplusplus | |
| extern "C" { | |
| #endif | |
| /* returns true if the token is acquired by this call, | |
| * false if we already hold it and do not have to acquire it | |
| */ | |
| extern jboolean | |
| tryToAcquireReentrancyToken( jvmtiEnv * jvmtienv, | |
| jthread thread); | |
| /* release the token; assumes we already hold it */ | |
| extern void | |
| releaseReentrancyToken( jvmtiEnv * jvmtienv, | |
| jthread thread); | |
| #ifdef __cplusplus | |
| } /* extern "C" */ | |
| #endif /* __cplusplus */ | |
| #endif |