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view src/myVncClient/MulticastQueue.java @ 0:9cbfbb64a0b5
create MulticastVncClient repository
author | Yu Taninari <you@cr.ie.u-ryukyu.ac.jp> |
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date | Wed, 07 Sep 2011 04:19:42 +0900 |
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package myVncClient; import java.util.concurrent.CountDownLatch; public class MulticastQueue<T> { Node<T> tail; public MulticastQueue() { tail = new Node<T>(null); } public synchronized void put(T item) { Node<T> next = new Node<T>(item); tail.set(next); tail = next; } public Client<T> newClient() { return new Client<T>(tail); } static class Client<T> { Node<T> node; Client(Node<T> tail) { node = tail; } public T poll() { Node<T> next = null; try { next = node.next(); }catch(InterruptedException _e){ _e.printStackTrace(); } node = next; return next.item; } } private static class Node<T> { private T item; private Node<T> next; private CountDownLatch latch; public Node(T item) { this.item = item; this.next = null; latch = new CountDownLatch(1); } public void set(Node<T> next) { this.next = next; latch.countDown(); } public Node<T> next() throws InterruptedException { latch.await(); return next; } } }