RetroArch/thread/xenon_sdl_threads.c

54 lines
1.5 KiB
C

/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2012 - Hans-Kristian Arntzen
* Copyright (C) 2011-2012 - Daniel De Matteis
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
// libSDLxenon doesn't implement this yet :[. Implement it very stupidly for now. ;)
#include "SDL_thread.h"
#include "SDL_mutex.h"
#include <stdlib.h>
#include <stdbool.h>
SDL_cond *SDL_CreateCond(void)
{
bool *sleeping = calloc(1, sizeof(sleeping));
return (SDL_cond*)sleeping;
}
void SDL_DestroyCond(SDL_cond *sleeping)
{
free(sleeping);
}
int SDL_CondWait(SDL_cond *cond, SDL_mutex *lock)
{
(void)lock;
volatile bool *sleeping = (volatile bool*)cond;
SDL_mutexV(lock);
*sleeping = true;
while (*sleeping); // Yeah, we all love busyloops don't we? ._.
SDL_mutexP(lock);
return 0;
}
int SDL_CondSignal(SDL_cond *cond)
{
*(volatile bool*)cond = false;
return 0;
}