jdk/src/windows/back/mutex_md.h
author mchung
Tue, 14 Oct 2008 15:16:38 -0700
changeset 1428 147c6bcaa316
parent 2 90ce3da70b43
child 5506 202f599c92aa
permissions -rw-r--r--
6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots Summary: Include stack traces of all threads in the heap dump Reviewed-by: alanb

/*
 * Copyright 1998-2005 Sun Microsystems, 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.  Sun designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 */

/* Copied from JDK 1.2: mutex_md.h      1.13 98/09/21 */

/*
 * Win32 implementation of mutexes. Here we use critical sections as
 * our mutexes. We could have used mutexes, but mutexes are heavier
 * weight than critical sections. Mutexes and critical sections are
 * semantically identical, the only difference being that mutexes
 * can operate between processes (i.e. address spaces).
 *
 * It's worth noting that the Win32 functions supporting critical
 * sections do not provide any error information whatsoever (i.e.
 * all critical section routines return (void)).
 */

#ifndef _JAVASOFT_WIN32_MUTEX_MD_H_
#define _JAVASOFT_WIN32_MUTEX_MD_H_

#include <windows.h>

typedef CRITICAL_SECTION mutex_t;

#define mutexInit(m)    InitializeCriticalSection(m)
#define mutexDestroy(m) DeleteCriticalSection(m)
#define mutexLock(m)    EnterCriticalSection(m)
#define mutexUnlock(m)  LeaveCriticalSection(m)

#endif /* !_JAVASOFT_WIN32_MUTEX_MD_H_ */