package com.gunshi;

import java.util.LinkedList;
import java.util.Queue;
import java.util.concurrent.CountDownLatch;

public class Tests extends Thread {

    static Queue<Integer> queue = new LinkedList<>();
    static int maxSize = 10;

    public static void main(String[] args) throws Exception {
//        Tests tc = new Tests();
//        // 创建生产者线程
//        Thread producer = new Thread(() -> {
//            try {
//                int value = 0;
//                while (true) {
//                    tc.produce();
//                    Thread.sleep(2000); // 模拟生产耗时
//                }
//            } catch (Exception e) {
//                Thread.currentThread().interrupt();
//            }
//        });
//
//        // 创建消费者线程
//        Thread consumer = new Thread(() -> {
//            try {
//                while (true) {
//                    tc.customer();
//                    Thread.sleep(1500); // 模拟消费耗时
//                }
//            } catch (Exception e) {
//                Thread.currentThread().interrupt();
//            }
//        });
//
//        producer.start();
//        consumer.start();
        CountDownLatch countDownLatch = new CountDownLatch(3);
        for (int i = 0; i < 3; i++) {
            new Thread(() -> {
                System.out.println("执行任务中。。。");
                try {
                    Thread.sleep(1000);
                    countDownLatch.countDown();
                } catch (InterruptedException e) {
                    throw new RuntimeException(e);
                }
            }).start();
        }
        countDownLatch.await();
        System.out.println("所有任务执行完毕");
    }

    public synchronized void produce() throws Exception{
        while (queue.size() == maxSize){
            System.out.println("队列已满，生产者等待...");
            wait();
        }
        queue.offer(0);
        System.out.println("生产者生产。。" + "队列大小为：" + queue.size());
        notifyAll();
    }


    public synchronized void customer() throws Exception{
        while(queue.size() == 0){
            System.out.println("队列无数据，等待生产者生产");
            wait();
        }
        queue.poll();
        System.out.println("消费者消费。。" + "队列大小为：" + queue.size());
        notifyAll();
    }
}