diff options
Diffstat (limited to 'apps/plugins/sdl/src/thread/os2/SDL_sysmutex.c')
-rw-r--r-- | apps/plugins/sdl/src/thread/os2/SDL_sysmutex.c | 108 |
1 files changed, 0 insertions, 108 deletions
diff --git a/apps/plugins/sdl/src/thread/os2/SDL_sysmutex.c b/apps/plugins/sdl/src/thread/os2/SDL_sysmutex.c deleted file mode 100644 index 1e21897656..0000000000 --- a/apps/plugins/sdl/src/thread/os2/SDL_sysmutex.c +++ /dev/null | |||
@@ -1,108 +0,0 @@ | |||
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 | /* Mutex functions using the OS/2 API */ | ||
25 | |||
26 | #define INCL_DOSERRORS | ||
27 | #define INCL_DOSSEMAPHORES | ||
28 | #include <os2.h> | ||
29 | |||
30 | #include "SDL_mutex.h" | ||
31 | |||
32 | |||
33 | struct SDL_mutex { | ||
34 | HMTX hmtxID; | ||
35 | }; | ||
36 | |||
37 | /* Create a mutex */ | ||
38 | DECLSPEC SDL_mutex * SDLCALL SDL_CreateMutex(void) | ||
39 | { | ||
40 | SDL_mutex *mutex; | ||
41 | APIRET ulrc; | ||
42 | |||
43 | /* Allocate mutex memory */ | ||
44 | mutex = (SDL_mutex *)SDL_malloc(sizeof(*mutex)); | ||
45 | if (mutex) | ||
46 | { | ||
47 | /* Create the mutex, with initial value signaled */ | ||
48 | ulrc = DosCreateMutexSem(NULL, // Create unnamed semaphore | ||
49 | &(mutex->hmtxID), // Pointer to handle | ||
50 | 0L, // Flags: create it private (not shared) | ||
51 | FALSE); // Initial value: unowned | ||
52 | if (ulrc!=NO_ERROR) | ||
53 | { | ||
54 | SDL_SetError("Couldn't create mutex"); | ||
55 | SDL_free(mutex); | ||
56 | mutex = NULL; | ||
57 | } | ||
58 | } else { | ||
59 | SDL_OutOfMemory(); | ||
60 | } | ||
61 | return(mutex); | ||
62 | } | ||
63 | |||
64 | /* Free the mutex */ | ||
65 | DECLSPEC void SDLCALL SDL_DestroyMutex(SDL_mutex *mutex) | ||
66 | { | ||
67 | if ( mutex ) | ||
68 | { | ||
69 | if ( mutex->hmtxID ) | ||
70 | { | ||
71 | DosCloseMutexSem(mutex->hmtxID); | ||
72 | mutex->hmtxID = 0; | ||
73 | } | ||
74 | SDL_free(mutex); | ||
75 | } | ||
76 | } | ||
77 | |||
78 | /* Lock the mutex */ | ||
79 | DECLSPEC int SDLCALL SDL_mutexP(SDL_mutex *mutex) | ||
80 | { | ||
81 | if ( mutex == NULL ) | ||
82 | { | ||
83 | SDL_SetError("Passed a NULL mutex"); | ||
84 | return -1; | ||
85 | } | ||
86 | if ( DosRequestMutexSem(mutex->hmtxID, SEM_INDEFINITE_WAIT) != NO_ERROR ) | ||
87 | { | ||
88 | SDL_SetError("Couldn't wait on mutex"); | ||
89 | return -1; | ||
90 | } | ||
91 | return(0); | ||
92 | } | ||
93 | |||
94 | /* Unlock the mutex */ | ||
95 | DECLSPEC int SDLCALL SDL_mutexV(SDL_mutex *mutex) | ||
96 | { | ||
97 | if ( mutex == NULL ) | ||
98 | { | ||
99 | SDL_SetError("Passed a NULL mutex"); | ||
100 | return -1; | ||
101 | } | ||
102 | if ( DosReleaseMutexSem(mutex->hmtxID) != NO_ERROR ) | ||
103 | { | ||
104 | SDL_SetError("Couldn't release mutex"); | ||
105 | return -1; | ||
106 | } | ||
107 | return(0); | ||
108 | } | ||