Subversion Repositories openrisc

// Many threads join a single thread.

class Sleeper implements Runnable

{

  int num = -1;

  public Sleeper(int num)

  {

    this.num = num;

  }

  public void run()

  {

    System.out.println("sleeping");

    try

    {

      Thread.sleep(500);

    }

    catch (InterruptedException x)

    {

      System.out.println("sleep() interrupted");

    }

    System.out.println("done");

  }

}

class Joiner implements Runnable

{

  Thread join_target;

  public Joiner(Thread t)

  {

    this.join_target = t;

  }

  public void run()

  {

    try

    {

      long start = System.currentTimeMillis();

      join_target.join(2000);

      if ((System.currentTimeMillis() - start) > 1900)

        System.out.println("Error: Join timed out");

      else

        System.out.println("ok");

    }

    catch (InterruptedException x)

    {

      System.out.println("join() interrupted");

    }

  }

}

public class Thread_Join

{

  public static void main(String[] args)

  {

    Thread primary = new Thread(new Sleeper(1));

    primary.start();

    for (int i=0; i < 10; i++)

    {

      Thread t = new Thread(new Joiner(primary));

      t.start();

    }

  }

}