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1/* Plain mutexes (native Windows implementation).
2 Copyright (C) 2005-2023 Free Software Foundation, Inc.
3
4 This file is free software: you can redistribute it and/or modify
5 it under the terms of the GNU Lesser General Public License as
6 published by the Free Software Foundation; either version 2.1 of the
7 License, or (at your option) any later version.
8
9 This file is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public License
15 along with this program. If not, see <https://www.gnu.org/licenses/>. */
16
17/* Written by Bruno Haible <bruno@clisp.org>, 2005.
18 Based on GCC's gthr-win32.h. */
19
20#ifndef _WINDOWS_MUTEX_H
21#define _WINDOWS_MUTEX_H
22
23#define WIN32_LEAN_AND_MEAN /* avoid including junk */
24#include <windows.h>
25
26#include "windows-initguard.h"
27
28typedef struct
29 {
30 glwthread_initguard_t guard; /* protects the initialization */
31 CRITICAL_SECTION lock;
32 }
33 glwthread_mutex_t;
34
35#define GLWTHREAD_MUTEX_INIT { GLWTHREAD_INITGUARD_INIT }
36
37#ifdef __cplusplus
38extern "C" {
39#endif
40
41extern void glwthread_mutex_init (glwthread_mutex_t *mutex);
42extern int glwthread_mutex_lock (glwthread_mutex_t *mutex);
43extern int glwthread_mutex_trylock (glwthread_mutex_t *mutex);
44extern int glwthread_mutex_unlock (glwthread_mutex_t *mutex);
45extern int glwthread_mutex_destroy (glwthread_mutex_t *mutex);
46
47#ifdef __cplusplus
48}
49#endif
50
51#endif /* _WINDOWS_MUTEX_H */