DRAFT |
SDL_TryLockMutex
Use this function to try to lock a mutex without blocking.
Contents
Syntax
int SDL_TryLockMutex(SDL_mutex* mutex)
Function Parameters
mutex |
the mutex to try to lock |
Return Value
Returns return 0, SDL_MUTEX_TIMEDOUT, or -1 on error; call SDL_GetError() for more information.
Code Examples
int status;
SDL_mutex *mutex;
mutex = SDL_CreateMutex();
if (!mutex) {
fprintf(stderr, "Couldn't create mutex\n");
return;
}
status = SDL_TryLockMutex(mutex);
if (status == 0) {
printf("Locked mutex\n");
SDL_UnlockMutex(mutex);
} else if (status == SDL_MUTEX_TIMEDOUT) {
/* Mutex not available for locking right now */
} else {
fprintf(stderr, "Couldn't lock mutex\n");
}
SDL_DestroyMutex(mutex);
Remarks
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