13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
|
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
|
-
+
-
+
-
+
-
+
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
|
* Public License, either version 2 or 3, which can be found in the file
* LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
* file.
*/
#include "config.h"
#import "mutex.h"
#include "platform.h"
#if defined(OF_HAVE_PTHREADS)
# include "mutex_pthread.m"
# include "platform/posix/mutex.m"
#elif defined(OF_WINDOWS)
# include "mutex_winapi.m"
# include "platform/windows/mutex.m"
#elif defined(OF_AMIGAOS)
# include "mutex_amiga.m"
# include "platform/amiga/mutex.m"
#endif
#if !defined(OF_HAVE_RECURSIVE_PTHREAD_MUTEXES) && !defined(OF_WINDOWS) && \
!defined(OF_AMIGAOS)
bool
of_rmutex_new(of_rmutex_t *rmutex)
{
if (!of_mutex_new(&rmutex->mutex))
return false;
if (!of_tlskey_new(&rmutex->count))
return false;
return true;
}
bool
of_rmutex_lock(of_rmutex_t *rmutex)
{
uintptr_t count = (uintptr_t)of_tlskey_get(rmutex->count);
if (count > 0) {
if (!of_tlskey_set(rmutex->count, (void *)(count + 1)))
return false;
return true;
}
if (!of_mutex_lock(&rmutex->mutex))
return false;
if (!of_tlskey_set(rmutex->count, (void *)1)) {
of_mutex_unlock(&rmutex->mutex);
return false;
}
return true;
}
bool
of_rmutex_trylock(of_rmutex_t *rmutex)
{
uintptr_t count = (uintptr_t)of_tlskey_get(rmutex->count);
if (count > 0) {
if (!of_tlskey_set(rmutex->count, (void *)(count + 1)))
return false;
return true;
}
if (!of_mutex_trylock(&rmutex->mutex))
return false;
if (!of_tlskey_set(rmutex->count, (void *)1)) {
of_mutex_unlock(&rmutex->mutex);
return false;
}
return true;
}
bool
of_rmutex_unlock(of_rmutex_t *rmutex)
{
uintptr_t count = (uintptr_t)of_tlskey_get(rmutex->count);
if (count > 1) {
if (!of_tlskey_set(rmutex->count, (void *)(count - 1)))
return false;
return true;
}
if (!of_tlskey_set(rmutex->count, (void *)0))
return false;
if (!of_mutex_unlock(&rmutex->mutex))
return false;
return true;
}
bool
of_rmutex_free(of_rmutex_t *rmutex)
{
if (!of_mutex_free(&rmutex->mutex))
return false;
if (!of_tlskey_free(rmutex->count))
return false;
return true;
}
#endif
|