1/* Plain mutexes (native Windows implementation).
2   Copyright (C) 2005-2020 Free Software Foundation, Inc.
3
4   This program is free software; you can redistribute it and/or modify
5   it under the terms of the GNU General Public License as published by
6   the Free Software Foundation; either version 3, or (at your option)
7   any later version.
8
9   This program 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 General Public License for more details.
13
14   You should have received a copy of the GNU 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 */
52