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Make sure sem_wait didn't return early with EINTR. Fixes Bugzilla #231.

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This commit is contained in:
Ryan C. Gordon
2006-05-17 23:42:48 +00:00
parent 0e9999cdab
commit 1890f79cea
3 changed files with 13 additions and 4 deletions
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9
src/thread/dc/SDL_syssem.c
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@@ -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_SemWaitTimeout(SDL_sem *sem, Uint32 timeout)
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)