jdk/src/windows/back/mutex_md.h
author amurillo
Mon, 06 Feb 2012 12:13:56 -0800
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/*
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 * Copyright (c) 1998, 2005, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.  Oracle designates this
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 * particular file as subject to the "Classpath" exception as provided
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 * by Oracle in the LICENSE file that accompanied this code.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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/* Copied from JDK 1.2: mutex_md.h      1.13 98/09/21 */
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/*
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 * Win32 implementation of mutexes. Here we use critical sections as
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 * our mutexes. We could have used mutexes, but mutexes are heavier
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 * weight than critical sections. Mutexes and critical sections are
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 * semantically identical, the only difference being that mutexes
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 * can operate between processes (i.e. address spaces).
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 *
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 * It's worth noting that the Win32 functions supporting critical
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 * sections do not provide any error information whatsoever (i.e.
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 * all critical section routines return (void)).
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 */
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#ifndef _JAVASOFT_WIN32_MUTEX_MD_H_
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#define _JAVASOFT_WIN32_MUTEX_MD_H_
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#include <windows.h>
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typedef CRITICAL_SECTION mutex_t;
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#define mutexInit(m)    InitializeCriticalSection(m)
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#define mutexDestroy(m) DeleteCriticalSection(m)
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#define mutexLock(m)    EnterCriticalSection(m)
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#define mutexUnlock(m)  LeaveCriticalSection(m)
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#endif /* !_JAVASOFT_WIN32_MUTEX_MD_H_ */