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_SemValueSDL Tue 11 Sep 2001, 23:00 SDL_SemPost(3)
