sdlSemTryWait function
See if a semaphore has a positive value and decrement it if it does.
This function checks to see if the semaphore pointed to by sem
has a
positive value and atomically decrements the semaphore value if it does. If
the semaphore doesn't have a positive value, the function immediately
returns SDL_MUTEX_TIMEDOUT.
\param sem the semaphore to wait on
\returns 0 if the wait succeeds, SDL_MUTEX_TIMEDOUT
if the wait would
block, or a negative error code on failure; call SDL_GetError()
for more information.
\since This function is available since SDL 2.0.0.
\sa SDL_CreateSemaphore \sa SDL_DestroySemaphore \sa SDL_SemPost \sa SDL_SemValue \sa SDL_SemWait \sa SDL_SemWaitTimeout
extern DECLSPEC int SDLCALL SDL_SemTryWait(SDL_sem * sem)
Implementation
int sdlSemTryWait(Pointer<SdlSem> sem) {
final sdlSemTryWaitLookupFunction = libSdl2.lookupFunction<
Int32 Function(Pointer<SdlSem> sem),
int Function(Pointer<SdlSem> sem)>('SDL_SemTryWait');
return sdlSemTryWaitLookupFunction(sem);
}