DESCRIPTION

SDL_SemPost unlocks the semaphore pointed to by sem and atomically increments the semaphores value. Threads that were blocking on the semaphore may be scheduled after this call succeeds.

SDL_SemPost should be called after a semaphore is locked by a successful call to SDL_SemWait, SDL_SemTryWait or SDL_SemWaitTimeout.

RETURN VALUE

Returns 0 if successful or -1 if there was an error (leaving the semaphore unchanged).

EXAMPLES

SDL_SemPost(my_sem);

SEE ALSO

SDL_CreateSemaphore(3), SDL_DestroySemaphore(3), SDL_SemWait(3), SDL_SemTryWait(3), SDL_SemWaitTimeout(3), SDL_SemValue(3)