SDL_!SemPost

SDL_!SemPost

NAME SYNOPSIS DESCRIPTION RETURN VALUE EXAMPLES SEE ALSO

NAME

SDL_!SemPost- Unlock a semaphore.

SYNOPSIS

#include

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