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"SDL_SemPost" "3" "Tue 11 Sep 2001, 23:00" "SDL" "SDL API Reference"
"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 created by instant / docbook-to-man, Tue 11 Sep 2001, 23:00