Function wait_until_generic 

pub fn wait_until_generic<F1, F2>(
    word: &AtomicI32,
    attempt: F1,
    mark_long: F2,
    long: c_int,
)
where
    F1: Fn(&AtomicI32) -> AttemptStatus,
    F2: Fn(&AtomicI32) -> AttemptStatus,