Mercurial > sdl-ios-xcode
view src/audio/alsa/SDL_alsa_audio.h @ 4209:62e86ab81e3c SDL-1.2
Fixed bug #570
SDL_SemWaitTimeout in src/thread/generic/SDL_syssem.c line 179 (SVN trunk):
--sem->count;
should be
if (retval == 0) {
--sem->count;
}
Without this, sem->count will underflow on timeout effectively breaking the
semaphore. It appears that the implementation has been wrong since the initial
revision.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Mon, 21 Sep 2009 07:32:26 +0000 |
parents | a1b03ba2fcd0 |
children | 464126f4c7db |
line wrap: on
line source
/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2009 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This library 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 Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; if not, write to the Free Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Sam Lantinga slouken@libsdl.org */ #include "SDL_config.h" #ifndef _ALSA_PCM_audio_h #define _ALSA_PCM_audio_h #define ALSA_PCM_OLD_HW_PARAMS_API #define ALSA_PCM_OLD_SW_PARAMS_API #include <alsa/asoundlib.h> #include "../SDL_sysaudio.h" /* Hidden "this" pointer for the video functions */ #define _THIS SDL_AudioDevice *this struct SDL_PrivateAudioData { /* The audio device handle */ snd_pcm_t *pcm_handle; /* The parent process id, to detect when application quits */ pid_t parent; /* Raw mixing buffer */ Uint8 *mixbuf; int mixlen; }; /* Old variable names */ #define pcm_handle (this->hidden->pcm_handle) #define parent (this->hidden->parent) #define mixbuf (this->hidden->mixbuf) #define mixlen (this->hidden->mixlen) #endif /* _ALSA_PCM_audio_h */