1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */ 2 /* 3 * Copyright (c) 2019 NITK Surathkal 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License version 2 as 7 * published by the Free Software Foundation; 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program; if not, write to the Free Software 16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 17 * 18 * Author: Apoorva Bharagava <apoorvabhargava13@gmail.com> 19 * Mohit P. Tahiliani <tahiliani@nitk.edu.in> 20 * 21 */ 22 23 #ifndef TCPLINUXRENO_H 24 #define TCPLINUXRENO_H 25 26 #include "ns3/tcp-congestion-ops.h" 27 #include "ns3/tcp-socket-state.h" 28 29 namespace ns3 { 30 31 class TcpLinuxReno : public TcpCongestionOps 32 { 33 public: 34 /** 35 * \brief Get the type ID. 36 * \return the object TypeId 37 */ 38 static TypeId GetTypeId (void); 39 40 TcpLinuxReno (); 41 42 /** 43 * \brief Copy constructor. 44 * \param sock object to copy. 45 */ 46 TcpLinuxReno (const TcpLinuxReno& sock); 47 48 ~TcpLinuxReno (); 49 50 std::string GetName () const; 51 52 virtual void IncreaseWindow (Ptr<TcpSocketState> tcb, uint32_t segmentsAcked); 53 virtual uint32_t GetSsThresh (Ptr<const TcpSocketState> tcb, 54 uint32_t bytesInFlight); 55 virtual Ptr<TcpCongestionOps> Fork (); 56 57 protected: 58 /** 59 * Slow start phase handler 60 * \param tcb Transmission Control Block of the connection 61 * \param segmentsAcked count of segments acked 62 * \return Number of segments acked minus the difference between the receiver and sender Cwnd 63 */ 64 virtual uint32_t SlowStart (Ptr<TcpSocketState> tcb, uint32_t segmentsAcked); 65 /** 66 * Congestion avoidance phase handler 67 * \param tcb Transmission Control Block of the connection 68 * \param segmentsAcked count of segments acked 69 */ 70 virtual void CongestionAvoidance (Ptr<TcpSocketState> tcb, uint32_t segmentsAcked); 71 72 private: 73 uint32_t m_cWndCnt {0}; //!< Linear increase counter 74 }; 75 76 } // namespace ns3 77 78 #endif // TCPLINUXRENO_H 79