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author | Franklin Wei <git@fwei.tk> | 2017-01-21 15:18:31 -0500 |
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committer | Franklin Wei <git@fwei.tk> | 2017-12-23 21:01:26 -0500 |
commit | a855d6202536ff28e5aae4f22a0f31d8f5b325d0 (patch) | |
tree | 8c75f224dd64ed360505afa8843d016b0d75000b /apps/plugins/sdl/src/thread/win32/SDL_sysmutex.c | |
parent | 01c6dcf6c7b9bb1ad2fa0450f99bacc5f3d3e04b (diff) | |
download | rockbox-a855d6202536ff28e5aae4f22a0f31d8f5b325d0.tar.gz rockbox-a855d6202536ff28e5aae4f22a0f31d8f5b325d0.zip |
Port of Duke Nukem 3D
This ports Fabien Sanglard's Chocolate Duke to run on a version of SDL
for Rockbox.
Change-Id: I8f2c4c78af19de10c1633ed7bb7a997b43256dd9
Diffstat (limited to 'apps/plugins/sdl/src/thread/win32/SDL_sysmutex.c')
-rw-r--r-- | apps/plugins/sdl/src/thread/win32/SDL_sysmutex.c | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/apps/plugins/sdl/src/thread/win32/SDL_sysmutex.c b/apps/plugins/sdl/src/thread/win32/SDL_sysmutex.c new file mode 100644 index 0000000000..1d7805c062 --- /dev/null +++ b/apps/plugins/sdl/src/thread/win32/SDL_sysmutex.c | |||
@@ -0,0 +1,95 @@ | |||
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 Win32 API */ | ||
25 | |||
26 | #define WIN32_LEAN_AND_MEAN | ||
27 | #include <windows.h> | ||
28 | |||
29 | #include "SDL_mutex.h" | ||
30 | |||
31 | |||
32 | struct SDL_mutex { | ||
33 | HANDLE id; | ||
34 | }; | ||
35 | |||
36 | /* Create a mutex */ | ||
37 | SDL_mutex *SDL_CreateMutex(void) | ||
38 | { | ||
39 | SDL_mutex *mutex; | ||
40 | |||
41 | /* Allocate mutex memory */ | ||
42 | mutex = (SDL_mutex *)SDL_malloc(sizeof(*mutex)); | ||
43 | if ( mutex ) { | ||
44 | /* Create the mutex, with initial value signaled */ | ||
45 | mutex->id = CreateMutex(NULL, FALSE, NULL); | ||
46 | if ( ! mutex->id ) { | ||
47 | SDL_SetError("Couldn't create mutex"); | ||
48 | SDL_free(mutex); | ||
49 | mutex = NULL; | ||
50 | } | ||
51 | } else { | ||
52 | SDL_OutOfMemory(); | ||
53 | } | ||
54 | return(mutex); | ||
55 | } | ||
56 | |||
57 | /* Free the mutex */ | ||
58 | void SDL_DestroyMutex(SDL_mutex *mutex) | ||
59 | { | ||
60 | if ( mutex ) { | ||
61 | if ( mutex->id ) { | ||
62 | CloseHandle(mutex->id); | ||
63 | mutex->id = 0; | ||
64 | } | ||
65 | SDL_free(mutex); | ||
66 | } | ||
67 | } | ||
68 | |||
69 | /* Lock the mutex */ | ||
70 | int SDL_mutexP(SDL_mutex *mutex) | ||
71 | { | ||
72 | if ( mutex == NULL ) { | ||
73 | SDL_SetError("Passed a NULL mutex"); | ||
74 | return -1; | ||
75 | } | ||
76 | if ( WaitForSingleObject(mutex->id, INFINITE) == WAIT_FAILED ) { | ||
77 | SDL_SetError("Couldn't wait on mutex"); | ||
78 | return -1; | ||
79 | } | ||
80 | return(0); | ||
81 | } | ||
82 | |||
83 | /* Unlock the mutex */ | ||
84 | int SDL_mutexV(SDL_mutex *mutex) | ||
85 | { | ||
86 | if ( mutex == NULL ) { | ||
87 | SDL_SetError("Passed a NULL mutex"); | ||
88 | return -1; | ||
89 | } | ||
90 | if ( ReleaseMutex(mutex->id) == FALSE ) { | ||
91 | SDL_SetError("Couldn't release mutex"); | ||
92 | return -1; | ||
93 | } | ||
94 | return(0); | ||
95 | } | ||