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

/*

 * Copyright (c) 2010 Adrian Sai-wah Tam

 *

 * 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: Adrian Sai-wah Tam <adrian.sw.tam@gmail.com>

 */

#ifndef TCP_RFC793_H

#define TCP_RFC793_H

#include "tcp-socket-base.h"

namespace ns3 {

/**

 * \ingroup socket

 * \ingroup tcp

 *

 * \brief An implementation of a stream socket using TCP.

 *

 * This class contains an RFC793 implementation of TCP, as well as a sockets

 * interface for talking to TCP.  This serves as a base for other TCP functions

 * where the sliding window mechanism is handled here.  This class provides

 * connection orientation and sliding window flow control.

 */

class TcpRfc793 : public TcpSocketBase

{

public:

  static TypeId GetTypeId (void);

  /**

   * Create an unbound tcp socket.

   */

  TcpRfc793 (void);

  TcpRfc793 (const TcpRfc793& sock);

  virtual ~TcpRfc793 (void);

protected:

  virtual Ptr<TcpSocketBase> Fork (); // Call CopyObject<TcpRfc793> to clone me

  virtual void DupAck (const TcpHeader& t, uint32_t count);

  virtual void     SetSSThresh (uint32_t threshold);

  virtual uint32_t GetSSThresh (void) const;

  virtual void     SetInitialCwnd (uint32_t cwnd);

  virtual uint32_t GetInitialCwnd (void) const;

};

} // namespace ns3

#endif /* TCP_RFC793_H */