lib/windows-timedmutex.h

   1 /* Timed 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 2, 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, 2019.
  18    Based on GCC's gthr-win32.h.  */
  19
  20 #ifndef _WINDOWS_TIMEDMUTEX_H
  21 #define _WINDOWS_TIMEDMUTEX_H
  22
  23 #define WIN32_LEAN_AND_MEAN  /* avoid including junk */
  24 #include <windows.h>
  25
  26 #include <time.h>
  27
  28 #include "windows-initguard.h"
  29
  30 typedef struct
  31         {
  32           glwthread_initguard_t guard; /* protects the initialization */
  33           HANDLE event;
  34           CRITICAL_SECTION lock;
  35         }
  36         glwthread_timedmutex_t;
  37
  38 #define GLWTHREAD_TIMEDMUTEX_INIT { GLWTHREAD_INITGUARD_INIT }
  39
  40 #ifdef __cplusplus
  41 extern "C" {
  42 #endif
  43
  44 extern int glwthread_timedmutex_init (glwthread_timedmutex_t *mutex);
  45 extern int glwthread_timedmutex_lock (glwthread_timedmutex_t *mutex);
  46 extern int glwthread_timedmutex_trylock (glwthread_timedmutex_t *mutex);
  47 extern int glwthread_timedmutex_timedlock (glwthread_timedmutex_t *mutex,
  48                                            const struct timespec *abstime);
  49 extern int glwthread_timedmutex_unlock (glwthread_timedmutex_t *mutex);
  50 extern int glwthread_timedmutex_destroy (glwthread_timedmutex_t *mutex);
  51
  52 #ifdef __cplusplus
  53 }
  54 #endif
  55
  56 #endif /* _WINDOWS_TIMEDMUTEX_H */