/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */

/*

 * Copyright 2007 University of Washington

 * 

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation;

 *

 * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 */

#ifndef __UDP_ECHO_CLIENT_H__

#define __UDP_ECHO_CLIENT_H__

#include "ns3/application.h"

#include "ns3/event-id.h"

#include "ns3/ptr.h"

namespace ns3 {

class Address;

class Socket;

class Packet;

class UdpEchoClient : public Application 

{

public:

  UdpEchoClient (Ptr<Node> n, Ipv4Address serverAddr, uint16_t serverPort,

    uint32_t count, Time interval, uint32_t size);

  virtual ~UdpEchoClient ();

protected:

  virtual void DoDispose (void);

private:

  void Construct (Ptr<Node> n, Ipv4Address serverAddr, uint16_t serverPort,

    uint32_t count, Time interval, uint32_t size);

  virtual void StartApplication (void);

  virtual void StopApplication (void);

  void ScheduleTransmit (Time dt);

  void Send (void);

  void Receive(Ptr<Socket> socket, const Packet &packet, const Address &from);

  Ptr<Node> m_node;

  Ipv4Address m_serverAddress;

  uint16_t m_serverPort;

  uint32_t m_count;

  Time m_interval;

  uint32_t m_size;

  uint32_t m_sent;

  Ptr<Socket> m_socket;

  Address m_peer;

  EventId m_sendEvent;

};

} // namespace ns3

#endif // __UDP_ECHO_CLIENT_H__