SDL_SemPost

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 , SDL_DestroySemaphore , SDL_SemWait, SDL_SemTryWait, SDL_SemWaitTimeout, SDL_SemValue