Method close

flow-rs/src/graph/context.rs:27–35

(&self)

impl ContextInner {
    pub fn close(&self) {
        if self
            .is_closed
            .compare_exchange(false, true, Ordering::Release, Ordering::Relaxed)
            .is_ok()
        {
            self.lock_ops.notify(usize::MAX);
        }
    }
    pub fn is_closed(&self) -> bool {
        self.is_closed.load(Ordering::Relaxed)
    }