| /* |
| * 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 |
