package concurrentLock;
import java.util.LinkedList;
import java.util.Queue;
import java.util.concurrent.locks.Condition;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
class TaskQueue{
final Queue queue = new LinkedList<>();
final Lock lock = new ReentrantLock();
final Condition notEmpty = lock.newCondition();
public String getTask() throws InterruptedException{
lock.lock();
try{
while(this.queue.isEmpty()){
notEmpty.await();
}
return queue.remove();
} finally {
lock.unlock();
}
}
public void addTask(String name){
lock.lock();
try {
this.queue.add(name);
notEmpty.signalAll();//唤醒全部ç‰å¾…线程
} finally{
lock.unlock();
}
}
}
class WorkerThread extends Thread{
TaskQueue taskQueue;
public WorkerThread(TaskQueue taskqueue){
this.taskQueue = taskqueue;
}
public void run() {
while(!isInterrupted()){
String name;
try{
name = taskQueue.getTask();
} catch (InterruptedException e){
break;
}
String result = "Hello, " + name + " !";
System.out.println(result);
}
}
}
public class Main3 {
public static void main(String[] args) throws InterruptedException {
TaskQueue taskQueue = new TaskQueue();
WorkerThread worker = new WorkerThread(taskQueue);
worker.start();
taskQueue.addTask("bob");
Thread.sleep(1000);
taskQueue.addTask("alice");
Thread.sleep(1000);
taskQueue.addTask("tim");
Thread.sleep(1000);
worker.interrupt();
worker.join();
System.out.println("END");
}
}