core_foundation::runloop

Function CFRunLoopObserverCreate

Source 
pub unsafe extern "C" fn CFRunLoopObserverCreate(
    allocator: *const c_void,
    activities: usize,
    repeats: u8,
    order: isize,
    callout: extern "C" fn(*mut __CFRunLoopObserver, usize, *mut c_void),
    context: *mut CFRunLoopObserverContext,
) -> *mut __CFRunLoopObserver