Function sdl2_sys::SDL_UnlockMutex

pub unsafe extern "C" fn SDL_UnlockMutex(
    mutex: *mut SDL_mutex
) -> c_int

Unlock the mutex.

It is legal for the owning thread to lock an already-locked mutex. It must unlock it the same number of times before it is actually made available for other threads in the system (this is known as a “recursive mutex”).

It is an error to unlock a mutex that has not been locked by the current thread, and doing so results in undefined behavior.

It is also an error to unlock a mutex that isn’t locked at all.

\param mutex the mutex to unlock. \returns 0, or -1 on error.

\since This function is available since SDL 2.0.0.