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| SDL_SemPost(3) | SDL API Reference | SDL_SemPost(3) |
NAME
SDL_SemPost - Unlock a semaphore.SYNOPSIS
#include "SDL.h" #include "SDL_thread.h"int SDL_SemPost(SDL_sem *sem);
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| Tue 11 Sep 2001, 23:00 | SDL |
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