1 /* Plain mutexes (native Windows implementation). 2 Copyright (C) 2005-2021 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 28 typedef 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 38 extern "C" { 39 #endif 40 41 extern void glwthread_mutex_init (glwthread_mutex_t *mutex); 42 extern int glwthread_mutex_lock (glwthread_mutex_t *mutex); 43 extern int glwthread_mutex_trylock (glwthread_mutex_t *mutex); 44 extern int glwthread_mutex_unlock (glwthread_mutex_t *mutex); 45 extern int glwthread_mutex_destroy (glwthread_mutex_t *mutex); 46 47 #ifdef __cplusplus 48 } 49 #endif 50 51 #endif /* _WINDOWS_MUTEX_H */