testpacketlink.java

无线传感器网络操作系统tinyos下的cc2420测试驱动程序

/*
 * Copyright (c) 2005-2006 Rincon Research Corporation
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the
 *   distribution.
 * - Neither the name of the Rincon Research Corporation nor the names of
 *   its contributors may be used to endorse or promote products derived
 *   from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
 * RINCON RESEARCH OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE
 */

import net.tinyos.message.Message;
import net.tinyos.message.MessageListener;
import net.tinyos.message.MoteIF;
import net.tinyos.message.SerialPacket;
import net.tinyos.packet.BuildSource;
import net.tinyos.packet.PhoenixSource;
import net.tinyos.util.PrintStreamMessenger;

/**
 * Feedback on from a TestPacketLink receiver
 * whether packets have been dropped or duplicated
 * @author David Moss
 *
 */
public class TestPacketLink implements MessageListener {

  private MoteIF moteIF;
  
  private static final short CMD_DROPPED_PACKET = 0;
  
  private static final short CMD_DUPLICATE_PACKET = 1;
  
  /**
   * Constructor
   * @param moteIF
   */
  public TestPacketLink(MoteIF moteIF) {
    this.moteIF = moteIF;
    this.moteIF.registerListener(new PacketLinkMsg(), this);
  }

  public void messageReceived(int s, Message message) {
    PacketLinkMsg msg = (PacketLinkMsg) message;
    if(msg.get_cmd() == CMD_DROPPED_PACKET) {
      System.out.println("Dropped packet from source " + msg.get_src());
    } else {
      System.out.println("Duplicate packet from source " + msg.get_src());
    }
  }
  
  private static void usage() {
    System.err.println("usage: TestSerial [-comm <source>]");
  }
  
  public static void main(String[] args) throws Exception {
    String source = null;
    if (args.length == 2) {
      if (!args[0].equals("-comm")) {
	usage();
	System.exit(1);
      }
      source = args[1];
    }
    else if (args.length != 0) {
      usage();
      System.exit(1);
    }
    
    PhoenixSource phoenix;
    
    if (source == null) {
      phoenix = BuildSource.makePhoenix(PrintStreamMessenger.err);
    }
    else {
      phoenix = BuildSource.makePhoenix(source, PrintStreamMessenger.err);
    }

    MoteIF mif = new MoteIF(phoenix);
    new TestPacketLink(mif);
  }


}