Mercurial > sdl-ios-xcode
diff src/thread/dc/SDL_syssem.c @ 1851:536b0704b7d8
Make sure sem_wait didn't return early with EINTR. Fixes Bugzilla #231.
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Wed, 17 May 2006 23:42:48 +0000 |
| parents | d910939febfa |
| children | c121d94672cb a1b03ba2fcd0 |
line wrap: on
line diff
--- a/src/thread/dc/SDL_syssem.c Wed May 17 18:57:04 2006 +0000 +++ b/src/thread/dc/SDL_syssem.c Wed May 17 23:42:48 2006 +0000 @@ -19,6 +19,9 @@ Sam Lantinga slouken@libsdl.org */ + +#include <errno.h> + #include "SDL_config.h" /* An implementation of semaphores using mutexes and condition variables */ @@ -135,13 +138,15 @@ int SDL_SemWait(SDL_sem *sem) { + int retval; + if ( ! sem ) { SDL_SetError("Passed a NULL semaphore"); return -1; } - sem_wait(&sem->sem); - return 0; + while ( ((retval = sem_wait(&sem->sem)) == -1) && (errno == EINTR) ) {} + return retval; } Uint32 SDL_SemValue(SDL_sem *sem)