1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
| public class BlockingQueue { private List queue = new LinkedList(); private int limit = 10; public BlockingQueue(int limit){ this.limit = limit; } public synchronized void enqueue(Object item) throws InterruptedException { while (this.queue.size() == this.limit) { wait(); } if (this.queue.size() == 0) { notifyAll(); } this.queue.add(item); } public synchronized Object dequeue() throws InterruptedException { while (this.queue.size() == 0) { wait(); } if (this.queue.size() == this.limit) { notifyAll(); } return this.queue.remove(0); } }
|