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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 sem- aphore may be scheduled after this call succeeds. SDL_SemPost should be called after a semaphore is locked by a success- ful call to SDL_SemWait, SDL_SemTryWait or SDL_SemWaitTimeout.

RETURN VALUE

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

EXAMPLES

SDL_SemPost(my_sem);

SEE ALSO

SDL_CreateSemaphore, SDL_DestroySemaphore, SDL_SemWait, SDL_SemTryWait, SDL_SemWaitTimeout, SDL_SemValue SDL Tue 11 Sep 2001, 23:00 SDL_SemPost(3)

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