A Discrete-Event Network Simulator
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tcp-newreno.h
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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
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/*
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* Copyright (c) 2010 Adrian Sai-wah Tam
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation;
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Author: Adrian Sai-wah Tam <adrian.sw.tam@gmail.com>
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*/
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#ifndef TCP_NEWRENO_H
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#define TCP_NEWRENO_H
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#include "tcp-socket-base.h"
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namespace
ns3 {
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class
TcpNewReno
:
public
TcpSocketBase
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{
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public
:
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static
TypeId
GetTypeId (
void
);
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TcpNewReno
(
void
);
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TcpNewReno
(
const
TcpNewReno
& sock);
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virtual
~
TcpNewReno
(
void
);
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// From TcpSocketBase
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virtual
int
Connect
(
const
Address
&address);
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virtual
int
Listen
(
void
);
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protected
:
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virtual
uint32_t
Window
(
void
);
// Return the max possible number of unacked bytes
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virtual
Ptr<TcpSocketBase>
Fork (
void
);
// Call CopyObject<TcpNewReno> to clone me
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virtual
void
NewAck
(
SequenceNumber32
const
& seq);
// Inc cwnd and call NewAck() of parent
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virtual
void
DupAck
(
const
TcpHeader
& t, uint32_t count);
// Halving cwnd and reset nextTxSequence
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virtual
void
Retransmit
(
void
);
// Exit fast recovery upon retransmit timeout
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// Implementing ns3::TcpSocket -- Attribute get/set
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virtual
void
SetSegSize (uint32_t size);
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virtual
void
SetSSThresh (uint32_t threshold);
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virtual
uint32_t GetSSThresh (
void
)
const
;
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virtual
void
SetInitialCwnd (uint32_t cwnd);
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virtual
uint32_t GetInitialCwnd (
void
)
const
;
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private
:
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void
InitializeCwnd (
void
);
// set m_cWnd when connection starts
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protected
:
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TracedValue<uint32_t>
m_cWnd;
//< Congestion window
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uint32_t m_ssThresh;
//< Slow Start Threshold
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uint32_t m_initialCWnd;
//< Initial cWnd value
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SequenceNumber32
m_recover;
//< Previous highest Tx seqnum for fast recovery
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uint32_t m_retxThresh;
//< Fast Retransmit threshold
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bool
m_inFastRec;
//< currently in fast recovery
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bool
m_limitedTx;
//< perform limited transmit
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};
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}
// namespace ns3
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#endif
/* TCP_NEWRENO_H */
ns3::Ptr
smart pointer class similar to boost::intrusive_ptr
Definition:
ptr.h:59
ns3::TcpNewReno::NewAck
virtual void NewAck(SequenceNumber32 const &seq)
Definition:
tcp-newreno.cc:117
ns3::TcpNewReno::Listen
virtual int Listen(void)
Definition:
tcp-newreno.cc:85
ns3::TcpNewReno::Window
virtual uint32_t Window(void)
Definition:
tcp-newreno.cc:103
ns3::TcpNewReno
An implementation of a stream socket using TCP.
Definition:
tcp-newreno.h:36
ns3::TracedValue< uint32_t >
ns3::Address
a polymophic address class
Definition:
address.h:86
ns3::TcpNewReno::DupAck
virtual void DupAck(const TcpHeader &t, uint32_t count)
Definition:
tcp-newreno.cc:162
ns3::TcpNewReno::Connect
virtual int Connect(const Address &address)
Definition:
tcp-newreno.cc:94
ns3::TcpSocketBase
A base class for implementation of a stream socket using TCP.
Definition:
tcp-socket-base.h:61
ns3::SequenceNumber< uint32_t, int32_t >
ns3::TcpHeader
Header for the Transmission Control Protocol.
Definition:
tcp-header.h:43
ns3::TcpNewReno::Retransmit
virtual void Retransmit(void)
Definition:
tcp-newreno.cc:191
ns3::TcpNewReno::TcpNewReno
TcpNewReno(void)
Definition:
tcp-newreno.cc:58
ns3::TypeId
a unique identifier for an interface.
Definition:
type-id.h:44
src
internet
model
tcp-newreno.h
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