diff options
Diffstat (limited to 'apps/plugins/sdl/src/thread/pth/SDL_sysmutex.c')
-rw-r--r-- | apps/plugins/sdl/src/thread/pth/SDL_sysmutex.c | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/apps/plugins/sdl/src/thread/pth/SDL_sysmutex.c b/apps/plugins/sdl/src/thread/pth/SDL_sysmutex.c new file mode 100644 index 0000000000..ca83b92c24 --- /dev/null +++ b/apps/plugins/sdl/src/thread/pth/SDL_sysmutex.c | |||
@@ -0,0 +1,87 @@ | |||
1 | /* | ||
2 | SDL - Simple DirectMedia Layer | ||
3 | Copyright (C) 1997-2012 Sam Lantinga | ||
4 | |||
5 | This library is free software; you can redistribute it and/or | ||
6 | modify it under the terms of the GNU Lesser General Public | ||
7 | License as published by the Free Software Foundation; either | ||
8 | version 2.1 of the License, or (at your option) any later version. | ||
9 | |||
10 | This library is distributed in the hope that it will be useful, | ||
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Lesser General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Lesser General Public | ||
16 | License along with this library; if not, write to the Free Software | ||
17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | ||
18 | |||
19 | Sam Lantinga | ||
20 | slouken@libsdl.org | ||
21 | */ | ||
22 | #include "SDL_config.h" | ||
23 | |||
24 | /* | ||
25 | * GNU pth mutexes | ||
26 | * | ||
27 | * Patrice Mandin | ||
28 | */ | ||
29 | |||
30 | #include <pth.h> | ||
31 | |||
32 | #include "SDL_mutex.h" | ||
33 | #include "SDL_sysmutex_c.h" | ||
34 | |||
35 | /* Create a mutex */ | ||
36 | SDL_mutex *SDL_CreateMutex(void) | ||
37 | { | ||
38 | SDL_mutex *mutex; | ||
39 | |||
40 | /* Allocate mutex memory */ | ||
41 | mutex = (SDL_mutex *)SDL_malloc(sizeof(*mutex)); | ||
42 | if ( mutex ) { | ||
43 | /* Create the mutex, with initial value signaled */ | ||
44 | if (!pth_mutex_init(&(mutex->mutexpth_p))) { | ||
45 | SDL_SetError("Couldn't create mutex"); | ||
46 | SDL_free(mutex); | ||
47 | mutex = NULL; | ||
48 | } | ||
49 | } else { | ||
50 | SDL_OutOfMemory(); | ||
51 | } | ||
52 | return(mutex); | ||
53 | } | ||
54 | |||
55 | /* Free the mutex */ | ||
56 | void SDL_DestroyMutex(SDL_mutex *mutex) | ||
57 | { | ||
58 | if ( mutex ) { | ||
59 | SDL_free(mutex); | ||
60 | } | ||
61 | } | ||
62 | |||
63 | /* Lock the mutex */ | ||
64 | int SDL_mutexP(SDL_mutex *mutex) | ||
65 | { | ||
66 | if ( mutex == NULL ) { | ||
67 | SDL_SetError("Passed a NULL mutex"); | ||
68 | return -1; | ||
69 | } | ||
70 | |||
71 | pth_mutex_acquire(&(mutex->mutexpth_p), FALSE, NULL); | ||
72 | |||
73 | return(0); | ||
74 | } | ||
75 | |||
76 | /* Unlock the mutex */ | ||
77 | int SDL_mutexV(SDL_mutex *mutex) | ||
78 | { | ||
79 | if ( mutex == NULL ) { | ||
80 | SDL_SetError("Passed a NULL mutex"); | ||
81 | return -1; | ||
82 | } | ||
83 | |||
84 | pth_mutex_release(&(mutex->mutexpth_p)); | ||
85 | |||
86 | return(0); | ||
87 | } | ||