TinyReceive.java

/**
 *
 *    Placeholder for TinyOS Receive for RBO Protocol simulation in Java.
 *    
 *    Copyright (C) 2009  Marcin Kik
 *
 *    This program is free software; you can redistribute it and/or modify
 *    it under the terms of the GNU General Public License as published by
 *    the Free Software Foundation; either version 2 of the License, or
 *    (at your option) any later version.
 *
 *    This program is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    GNU General Public License for more details.
 *
 *    You should have received a copy of the GNU General Public License
 *    along with this program; if not, write to the Free Software
 *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 *
 *    The author can be reached at Marcin.Kik@pwr.wroc.pl
 *
 */

public class TinyReceive extends Thread{

    TinyRadio radio;

    TinyChannel channel;

    TinyTaskQueue tinyTaskQueue;


    volatile RboMessage messageBuffer=new RboMessage();

    public void run()
    {
	while(true){
	    RboMessage message=channel.getMessage();
	    // System.out.println("TinyReceive:from channel: MSG: "+message.toString()); // for debugging
	    if(radio.switchedOn && messageBuffer!=null)
		{
		    // System.out.println("TinyReceive: posting MSG: "+message.toString()); // for debugging
		    postReceiveTask(message);
		}
	}
    }


    TinyReceiveEvents events;

    public void postReceiveTask(final RboMessage message)
    {
	messageBuffer=null;
	TinyTask task=new TinyTask(){
		public void run()
		{
		    messageBuffer=events.receive(message);
		}
	    };
	// ... post to the queue
	tinyTaskQueue.enqueue(task);

    }

    // constructor for events wiring

    public TinyReceive(TinyReceiveEvents implementedEvents)
    {
	events=implementedEvents;
    }

}