/* Distributed Semaphore, sample client */

// must have interface file, but not the implementation file

import java.rmi.*;

public class dmclient
{

    // args[0]=id, args[1]=server ip addr
    public static void main(String[] args) throws Exception
    {
        System.setProperty("java.security.policy",
                           "client.policy");
        System.setSecurityManager(
             new RMISecurityManager());
        String id = args[0]; // identifies itself
        String serveraddr = args[1];  // identifies server (ip or hostname)
        
        dmutex DM;
        DM = (dmutex)Naming.lookup("rmi://"+serveraddr+"/dmutex0");


        // enter into loop
        int s = (int)(Math.random()*8000); // random delay time
        System.out.println(id+" delay time = "+s+"ms");
        for (int i=0; i<10; i++)
            {
                System.out.println(id+" remote synch...");
                DM.lock();
                System.out.println(id+" acquired lock");
                Thread.sleep(s); // simulated delay
                DM.unlock();
            }
    }  //main
}