Method get

publication/code/chapter10/conshash.rs:87–95

获取结点

(&self, key: u64)

    // 获取结点
    fn get(&self, key: u64) -> Option<&T> {
        if self.ring.is_empty() {
            return None;
        }
        let mut keys = self.ring.keys();
        keys.find(|&k| k >= &key)
            .and_then(|k| self.ring.get(k))
            .or(keys.nth(0).and_then(|x| self.ring.get(x)))
    }
}

fn main() {