tcp-yeah.h

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2016 ResiliNets, ITTC, University of Kansas
 *
 * 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: Truc Anh N. Nguyen <annguyen@ittc.ku.edu>
 *
 * James P.G. Sterbenz <jpgs@ittc.ku.edu>, director
 * ResiliNets Research Group  http://wiki.ittc.ku.edu/resilinets
 * Information and Telecommunication Technology Center (ITTC)
 * and Department of Electrical Engineering and Computer Science
 * The University of Kansas Lawrence, KS USA.
 */

#ifndef TCPYEAH_H
#define TCPYEAH_H

#include "ns3/tcp-scalable.h"

namespace ns3 {

class TcpYeah : public TcpNewReno
{
public:
  static TypeId GetTypeId (void);

  TcpYeah (void);

  TcpYeah (const TcpYeah& sock);
  virtual ~TcpYeah (void);

  virtual std::string GetName () const;

  virtual void PktsAcked (Ptr<TcpSocketState> tcb, uint32_t segmentsAcked,
                          const Time& rtt);

  virtual void CongestionStateSet (Ptr<TcpSocketState> tcb,
                                   const TcpSocketState::TcpCongState_t newState);

  virtual void IncreaseWindow (Ptr<TcpSocketState> tcb, uint32_t segmentsAcked);

  virtual uint32_t GetSsThresh (Ptr<const TcpSocketState> tcb,
                                uint32_t bytesInFlight);

  virtual Ptr<TcpCongestionOps> Fork ();

protected:
private:
  void EnableYeah (const SequenceNumber32 &nextTxSequence);

  void DisableYeah ();

private:
  uint32_t m_alpha;   
  uint32_t m_gamma;   
  uint32_t m_delta;   
  uint32_t m_epsilon; 
  uint32_t m_phy;     
  uint32_t m_rho;     
  uint32_t m_zeta;    

  uint32_t m_stcpAiFactor;  
  Ptr<TcpScalable> m_stcp;  
  Time m_baseRtt;           
  Time m_minRtt;            
  uint32_t m_cntRtt;        
  bool m_doingYeahNow;          
  SequenceNumber32 m_begSndNxt; 
  uint32_t m_lastQ;             
  uint32_t m_doingRenoNow;      
  uint32_t m_renoCount;         
  uint32_t m_fastCount;         
};

} // namespace ns3

#endif // TCPYEAH_H