SDL_SemPost3

Usage

Overview

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);