Repository navigation
Expand file tree
/
Copy pathSDL_sysmutex.c
More file actions
144 lines (118 loc) · 3.34 KB
/
Copy pathSDL_sysmutex.c
File metadata and controls
144 lines (118 loc) · 3.34 KB
1
2
3
4
5
6
7
8
9
10
11
12
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
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
/*
Simple DirectMedia Layer
Copyright (C) 1997-2024 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include "../../SDL_internal.h"
#ifdef SDL_THREAD_VITA
#include "SDL_thread.h"
#include "SDL_systhread_c.h"
#include <psp2/kernel/threadmgr.h>
#include <psp2/kernel/error.h>
struct SDL_mutex
{
SceKernelLwMutexWork lock;
};
/* Create a mutex */
SDL_mutex *SDL_CreateMutex(void)
{
SDL_mutex *mutex = NULL;
SceInt32 res = 0;
/* Allocate mutex memory */
mutex = (SDL_mutex *)SDL_malloc(sizeof(*mutex));
if (mutex) {
res = sceKernelCreateLwMutex(
&mutex->lock,
"SDL mutex",
SCE_KERNEL_MUTEX_ATTR_RECURSIVE,
0,
NULL);
if (res < 0) {
SDL_SetError("Error trying to create mutex: %x", res);
}
} else {
SDL_OutOfMemory();
}
return mutex;
}
/* Free the mutex */
void SDL_DestroyMutex(SDL_mutex *mutex)
{
if (mutex) {
sceKernelDeleteLwMutex(&mutex->lock);
SDL_free(mutex);
}
}
/* Lock the mutex */
int SDL_LockMutex(SDL_mutex *mutex) SDL_NO_THREAD_SAFETY_ANALYSIS /* clang doesn't know about NULL mutexes */
{
#ifdef SDL_THREADS_DISABLED
return 0;
#else
SceInt32 res = 0;
if (!mutex) {
return 0;
}
res = sceKernelLockLwMutex(&mutex->lock, 1, NULL);
if (res != SCE_KERNEL_OK) {
return SDL_SetError("Error trying to lock mutex: %x", res);
}
return 0;
#endif /* SDL_THREADS_DISABLED */
}
/* Try to lock the mutex */
int SDL_TryLockMutex(SDL_mutex *mutex)
{
#ifdef SDL_THREADS_DISABLED
return 0;
#else
SceInt32 res = 0;
if (!mutex) {
return 0;
}
res = sceKernelTryLockLwMutex(&mutex->lock, 1);
switch (res) {
case SCE_KERNEL_OK:
return 0;
break;
case SCE_KERNEL_ERROR_MUTEX_FAILED_TO_OWN:
return SDL_MUTEX_TIMEDOUT;
break;
default:
return SDL_SetError("Error trying to lock mutex: %x", res);
break;
}
return -1;
#endif /* SDL_THREADS_DISABLED */
}
/* Unlock the mutex */
int SDL_UnlockMutex(SDL_mutex *mutex) SDL_NO_THREAD_SAFETY_ANALYSIS /* clang doesn't know about NULL mutexes */
{
#ifdef SDL_THREADS_DISABLED
return 0;
#else
SceInt32 res = 0;
if (mutex == NULL) {
return 0;
}
res = sceKernelUnlockLwMutex(&mutex->lock, 1);
if (res != 0) {
return SDL_SetError("Error trying to unlock mutex: %x", res);
}
return 0;
#endif /* SDL_THREADS_DISABLED */
}
#endif /* SDL_THREAD_VITA */
/* vi: set ts=4 sw=4 expandtab: */