Java Phaser arriveAndAwaitAdvance() 方法

2025年3月21日 | 阅读 1 分钟

arriveAndAwaitAdvance() 方法返回到达的阶段编号，或者在终止时返回负的当前阶段。使用此方法，当前 phaser 到达，其他 phaser 在队列中等待。

语法

它返回当前的 phaser 编号。

抛出

IllegalStateException - 当未到达的参与者数量为负数时，将抛出此异常。

示例 1

import java.util.concurrent.Phaser;
public class PhaserArriveAndAwaitAdvanceExample1
{
    public static void main(String[] args) throws InterruptedException
    {
          Phaser p = new Phaser(10);
          p.register();
         int pc = p.getPhase();
          System.out.println("Thread is sleeping");
          Thread.sleep(5000);
          for(int i=0; i<=5; i++)
          {  
            new PhaserArriveAndAwaitAdvanceExample1().test(p);
 }
         
          System.out.println("Final Phase count after arrival of Thread is "+pc); 
    }
    void test(final Phaser p)
    {
        new Thread(){
                @Override
                public void run()
                    { 
                        System.out.println(Thread.currentThread().getName()+" arrived");
                       p.arriveAndAwaitAdvance(); 
                    } 
               }.start();
    }
}

输出

Thread is sleeping
Thread-0 arrived
Thread-1 arrived
Final Phase count after arrival of Thread is 0
Thread-2 arrived
Thread-4 arrived
Thread-5 arrived
Thread-3 arrived

示例 2

import java.util.concurrent.Phaser;
public class PhaserArriveAndAwaitAdvanceExample2
{
    public static void main(String[] args) throws InterruptedException
    {
          Phaser p = new Phaser();
          p.register();
          System.out.println("Phaser Object is register...");
          int pc = p.getPhase();
          System.out.println("Initial Phase count is "+pc);
          new PhaserArriveAndAwaitAdvanceExample2().test(p);
    }
     private void test(final Phaser p)
    {
        new Thread(){
                @Override
                public void run()
                    {
                        System.out.println(Thread.currentThread().getName()+" arrived");
                        p.arriveAndAwaitAdvance();
                         System.out.println("Thread Arrives and wait");
                    }
               }.start();
    }
}

输出

Phaser Object is register...
Initial Phase count is 0
Thread-0 arrived

下一话题Java Phaser

Java Phaser arriveAndAwaitAdvance() 方法

语法

返回

抛出

示例 1

示例 2

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Java Phaser arriveAndAwaitAdvance() 方法

语法

返回

抛出

示例 1

示例 2

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