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3719602c PC |
1 | /* Copyright (C) 2010-2020 The RetroArch team |
2 | * | |
3 | * --------------------------------------------------------------------------------------- | |
4 | * The following license statement only applies to this file (xenon_sdl_threads.c). | |
5 | * --------------------------------------------------------------------------------------- | |
6 | * | |
7 | * Permission is hereby granted, free of charge, | |
8 | * to any person obtaining a copy of this software and associated documentation files (the "Software"), | |
9 | * to deal in the Software without restriction, including without limitation the rights to | |
10 | * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, | |
11 | * and to permit persons to whom the Software is furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. | |
14 | * | |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, | |
16 | * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. | |
18 | * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, | |
19 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
20 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |
21 | */ | |
22 | ||
23 | /* libSDLxenon doesn't implement this yet :[. Implement it very stupidly for now. ;) */ | |
24 | ||
25 | #include "SDL_thread.h" | |
26 | #include "SDL_mutex.h" | |
27 | #include <stdlib.h> | |
28 | #include <boolean.h> | |
29 | ||
30 | SDL_cond *SDL_CreateCond(void) | |
31 | { | |
32 | bool *sleeping = calloc(1, sizeof(*sleeping)); | |
33 | return (SDL_cond*)sleeping; | |
34 | } | |
35 | ||
36 | void SDL_DestroyCond(SDL_cond *sleeping) | |
37 | { | |
38 | free(sleeping); | |
39 | } | |
40 | ||
41 | int SDL_CondWait(SDL_cond *cond, SDL_mutex *lock) | |
42 | { | |
43 | (void)lock; | |
44 | volatile bool *sleeping = (volatile bool*)cond; | |
45 | ||
46 | SDL_mutexV(lock); | |
47 | *sleeping = true; | |
48 | while (*sleeping); /* Yeah, we all love busyloops don't we? ._. */ | |
49 | SDL_mutexP(lock); | |
50 | ||
51 | return 0; | |
52 | } | |
53 | ||
54 | int SDL_CondSignal(SDL_cond *cond) | |
55 | { | |
56 | *(volatile bool*)cond = false; | |
57 | return 0; | |
58 | } |