/* Copyright (c) 2006-2007, 2012-2014. The SimGrid Team.
 * All rights reserved.                                                     */

/* This program is free software; you can redistribute it and/or modify it
 * under the terms of the license (GNU LGPL) which comes with this package. */

package tracing;
import org.simgrid.msg.Host;
import org.simgrid.msg.Msg;
import org.simgrid.msg.MsgException;
import org.simgrid.msg.Task;
import org.simgrid.msg.Process;
import org.simgrid.trace.Trace;

public class Receiver extends Process {
  
	private  final double commSizeLat = 1;
  private final double commSizeBw = 100000000;
   		 
	public Receiver(Host host, String name, String[]args) {
		super(host,name,args);
   } 
   
   public void main(String[] args) throws MsgException {
        
      Msg.info("hello!");
      Trace.hostPushState (host.getName(), "PM_STATE", "waitingPing");
			double communicationTime=0;

      double time = Msg.getClock();
    
			/* Wait for the ping */ 
      Msg.info("try to get a task");
        
      PingPongTask ping = (PingPongTask)Task.receive(getHost().getName());
      double timeGot = Msg.getClock();
      double timeSent = ping.getTime();
            
      Msg.info("Got at time "+ timeGot);
      Msg.info("Was sent at time "+timeSent);
      time=timeSent;
            
      communicationTime=timeGot - time;
      Msg.info("Communication time : " + communicationTime);
            
      Msg.info(" --- bw "+ commSizeBw/communicationTime + " ----");
      
			/* Send the pong */
     		Trace.hostPushState (host.getName(), "PM_STATE", "sendingPong");
			double computeDuration = 0;
			PingPongTask pong = new PingPongTask("no name",computeDuration,commSizeLat);
			pong.setTime(time);
			pong.send(ping.getSource().getName());

		/* Pop the two states */
      Trace.hostPopState (host.getName(), "PM_STATE");
      Trace.hostPopState (host.getName(), "PM_STATE");
  
  		Msg.info("goodbye!");
    }
}