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Ensure signals are properly masked for new SDL Audio threads, by Andrzej

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Zaborowski.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3069 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
ths 2007-07-11 23:23:15 +00:00
parent af3a903106
commit e784ba70e0
1 changed files with 18 additions and 0 deletions
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18
audio/sdlaudio.c
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@ -25,6 +25,13 @@
#include <SDL_thread.h> #include <SDL_thread.h>
#include "vl.h" #include "vl.h"
#ifndef _WIN32
#ifdef __sun__
#define _POSIX_PTHREAD_SEMANTICS 1
#endif
#include <signal.h>
#endif
#define AUDIO_CAP "sdl" #define AUDIO_CAP "sdl"
#include "audio_int.h" #include "audio_int.h"
@ -177,11 +184,22 @@ static int sdl_to_audfmt (int sdlfmt, audfmt_e *fmt, int *endianess)
static int sdl_open (SDL_AudioSpec *req, SDL_AudioSpec *obt) static int sdl_open (SDL_AudioSpec *req, SDL_AudioSpec *obt)
{ {
int status; int status;
#ifndef _WIN32
sigset_t new, old;
/* Make sure potential threads created by SDL don't hog signals. */
sigfillset (&new);
pthread_sigmask (SIG_BLOCK, &new, &old);
#endif
status = SDL_OpenAudio (req, obt); status = SDL_OpenAudio (req, obt);
if (status) { if (status) {
sdl_logerr ("SDL_OpenAudio failed\n"); sdl_logerr ("SDL_OpenAudio failed\n");
} }
#ifndef _WIN32
pthread_sigmask (SIG_SETMASK, &old, 0);
#endif
return status; return status;
} }