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

/*

 * Copyright (c) 2007 INRIA

 *

 * 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

 *

 * Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>

 */

#ifndef UDP_SOCKET_FACTORY_IMPL_H

#define UDP_SOCKET_FACTORY_IMPL_H

#include "ns3/udp-socket-factory.h"

#include "ns3/ptr.h"

namespace ns3 {

class UdpL4Protocol;

/**

 * \ingroup internetStack

 * \defgroup udp Udp

 *

 * This  is  an  implementation of the User Datagram Protocol described in

 * RFC 768.  It implements a connectionless,  unreliable  datagram  packet

 * service.   Packets  may  be reordered or duplicated before they arrive.

 * UDP generates and checks checksums to catch transmission errors.

 *

 * The following options are not presently part of this implementation:

 * UDP_CORK, MSG_DONTROUTE, path MTU discovery control (e.g. 

 * IP_MTU_DISCOVER).  MTU handling is also weak in ns-3 for the moment;

 * it is best to send datagrams that do not exceed 1500 byte MTU (e.g.

 * 1472 byte UDP datagrams)

 */

/**

 * \ingroup udp

 * \brief Object to create UDP socket instances 

 * \internal

 *

 * This class implements the API for creating UDP sockets.

 * It is a socket factory (deriving from class SocketFactory).

 */

class UdpSocketFactoryImpl : public UdpSocketFactory

{

public:

  UdpSocketFactoryImpl ();

  virtual ~UdpSocketFactoryImpl ();

  void SetUdp (Ptr<UdpL4Protocol> udp);

  /**

   * \brief Implements a method to create a Udp-based socket and return

   * a base class smart pointer to the socket.

   * \internal

   *

   * \return smart pointer to Socket

   */

  virtual Ptr<Socket> CreateSocket (void);

protected:

  virtual void DoDispose (void);

private:

  Ptr<UdpL4Protocol> m_udp;

};

} // namespace ns3

#endif /* UDP_SOCKET_FACTORY_IMPL_H */