import java.io.*;
import java.lang.*;

public class RWLockTest extends Thread
{
 RWLock2 lock;

 static public void main (String args[])
   {
    new RWLockTest();
   }

 RWLockTest()
   {
    lock = new RWLock2();
    lock.setSleepTime (3000);

    start();

    System.out.println ("Thread 1: prior to setReadLoc");
    lock.setReadLock(1);
    System.out.println ("Thread 1: after setReadLoc");

    System.out.println ("Thread 1: prior to setReadLoc");
    lock.setWriteLock(3);
    System.out.println ("Thread 1: after setReadLoc");
   }

 public void run()
   {
    System.out.println ("Thread 2: prior to setReadLoc");
    lock.setReadLock(2);
    System.out.println ("Thread 2: after setReadLoc");

    System.out.println ("Thread 2: prior to setReadLoc");
    lock.clearReadLock(4);
    System.out.println ("Thread 2: after setReadLoc");
   }

}