1 /*

     2  * Copyright (c) 1994, 1998, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    25 

    26 /*

    27  * Win32 implementation of mutexes. Here we use critical sections as

    28  * our mutexes. We could have used mutexes, but mutexes are heavier

    29  * weight than critical sections. Mutexes and critical sections are

    30  * semantically identical, the only difference being that mutexes

    31  * can operate between processes (i.e. address spaces).

    32  *

    33  * It's worth noting that the Win32 functions supporting critical

    34  * sections do not provide any error information whatsoever (i.e.

    35  * all critical section routines return (void)).

    36  */

    37 

    38 #ifndef _JAVASOFT_WIN32_MUTEX_MD_H_

    39 #define _JAVASOFT_WIN32_MUTEX_MD_H_

    40 

    41 #include <windows.h>

    42 

    43 typedef CRITICAL_SECTION mutex_t;

    44 

    45 #define mutexInit(m)    InitializeCriticalSection(m)

    46 #define mutexDestroy(m) DeleteCriticalSection(m)

    47 #define mutexLock(m)    EnterCriticalSection(m)

    48 #define mutexUnlock(m)  LeaveCriticalSection(m)

    49 

    50 #endif /* !_JAVASOFT_WIN32_MUTEX_MD_H_ */