1 /*
2  * Copyright 2012-2013 Michael Steinert
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
19  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
20  * DEALINGS IN THE SOFTWARE.
21  */
22 
23 #include "threads.h"
24 
25 #include <stdlib.h>
26 
pthread_self(void)27 DWORD pthread_self(void) { return GetCurrentThreadId(); }
28 
pthread_mutex_init(pthread_mutex_t * mutex,void * attr)29 int pthread_mutex_init(pthread_mutex_t *mutex, void *attr) {
30   if (!mutex) {
31     return 1;
32   }
33   InitializeSRWLock(mutex);
34   return 0;
35 }
36 
pthread_mutex_lock(pthread_mutex_t * mutex)37 int pthread_mutex_lock(pthread_mutex_t *mutex) {
38   if (!mutex) {
39     return 1;
40   }
41   AcquireSRWLockExclusive(mutex);
42   return 0;
43 }
44 
pthread_mutex_unlock(pthread_mutex_t * mutex)45 int pthread_mutex_unlock(pthread_mutex_t *mutex) {
46   if (!mutex) {
47     return 1;
48   }
49   ReleaseSRWLockExclusive(mutex);
50   return 0;
51 }
52 
pthread_mutex_destroy(pthread_mutex_t * mutex)53 int pthread_mutex_destroy(pthread_mutex_t *mutex) {
54   /* SRW's do not require destruction. */
55   return 0;
56 }
57