State variables for TcpWestwood. More...

#include <TcpWestwood.h>

Inheritance diagram for inet::tcp::TcpWestwoodStateVariables:

Public Member Functions
	TcpWestwoodStateVariables ()

	~TcpWestwoodStateVariables ()

virtual std::string	str () const override

virtual std::string	detailedInfo () const override

Public Member Functions inherited from inet::tcp::TcpBaseAlgStateVariables
	TcpBaseAlgStateVariables ()

Public Member Functions inherited from inet::tcp::TcpStateVariables
	TcpStateVariables ()

Public Attributes
uint32_t	ssthresh
	slow start threshold More...

simtime_t	w_RTTmin

double	w_a

simtime_t	w_lastAckTime

double	w_bwe

double	w_sample_bwe

TcpSegmentTransmitInfoList	regions

Public Attributes inherited from inet::tcp::TcpBaseAlgStateVariables
int	rexmit_count
	retransmit count More...

simtime_t	rexmit_timeout
	current retransmission timeout (aka RTO) More...

uint	persist_factor
	persist factor More...

simtime_t	persist_timeout
	current persist timeout More...

uint32_t	snd_cwnd
	congestion window More...

uint32_t	rtseq
	round-trip time measurements More...

simtime_t	rtseq_sendtime
	time when rtseq was sent (0 if RTT measurement is not running) More...

simtime_t	srtt
	round-trip time estimation (Jacobson's algorithm) More...

simtime_t	rttvar
	variance of round-trip time More...

uint32_t	numRtos
	number of RTOs More...

uint32_t	recover
	RFC 3782 variables. More...

bool	firstPartialACK
	first partial acknowledgement (RFC 3782) More...

Public Attributes inherited from inet::tcp::TcpStateVariables
bool	active

bool	fork

uint32_t	snd_mss

uint32_t	snd_una

uint32_t	snd_nxt

uint32_t	snd_max

uint32_t	snd_wnd

uint32_t	snd_up

uint32_t	snd_wl1

uint32_t	snd_wl2

uint32_t	iss

uint32_t	rcv_nxt

uint32_t	rcv_wnd

uint32_t	rcv_up

uint32_t	irs

uint32_t	rcv_adv

int	syn_rexmit_count

simtime_t	syn_rexmit_timeout

bool	fin_ack_rcvd

bool	send_fin

uint32_t	snd_fin_seq

bool	fin_rcvd

uint32_t	rcv_fin_seq

bool	nagle_enabled

bool	delayed_acks_enabled

bool	limited_transmit_enabled

bool	increased_IW_enabled

uint32_t	full_sized_segment_counter

bool	ack_now

bool	afterRto

bool	ws_support

bool	ws_enabled

int	ws_manual_scale

bool	snd_ws

bool	rcv_ws

uint	rcv_wnd_scale

uint	snd_wnd_scale

bool	ts_support

bool	ts_enabled

bool	snd_initial_ts

bool	rcv_initial_ts

uint32_t	ts_recent

uint32_t	last_ack_sent

simtime_t	time_last_data_sent

bool	sack_support

bool	sack_enabled

bool	snd_sack_perm

bool	rcv_sack_perm

uint32_t	start_seqno

uint32_t	end_seqno

bool	snd_sack

bool	snd_dsack

SackList	sacks_array

uint32_t	highRxt

uint32_t	pipe

uint32_t	recoveryPoint

uint32_t	sackedBytes

uint32_t	sackedBytes_old

bool	lossRecovery

uint32_t	sendQueueLimit

bool	queueUpdate

uint32_t	dupacks

uint32_t	snd_sacks

uint32_t	rcv_sacks

uint32_t	rcv_oooseg

uint32_t	rcv_naseg

uint32_t	maxRcvBuffer

uint32_t	usedRcvBuffer

uint32_t	freeRcvBuffer

uint32_t	tcpRcvQueueDrops

bool	ecnEchoState

bool	sndCwr

bool	gotEce

bool	gotCeIndication

bool	ect

bool	endPointIsWillingECN

bool	ecnSynSent

bool	ecnWillingness

bool	sndAck

bool	rexmit

simtime_t	eceReactionTime

uint32_t	dupthresh

Detailed Description

State variables for TcpWestwood.

Constructor & Destructor Documentation

◆ TcpWestwoodStateVariables()

inet::tcp::TcpWestwoodStateVariables::TcpWestwoodStateVariables ( )

 {
     ssthresh = 65535;
     w_RTTmin = SIMTIME_MAX;
     w_a = 1;
     w_lastAckTime = 0;
     w_bwe = 0;
     w_sample_bwe = 0;
 }

◆ ~TcpWestwoodStateVariables()

inet::tcp::TcpWestwoodStateVariables::~TcpWestwoodStateVariables ( )

30 {

31 }

Member Function Documentation

◆ detailedInfo()

std::string inet::tcp::TcpWestwoodStateVariables::detailedInfo ( ) const

overridevirtual

Reimplemented from inet::tcp::TcpBaseAlgStateVariables.

 {
     std::stringstream out;
     out << TcpBaseAlgStateVariables::detailedInfo();
     out << "ssthresh = " << ssthresh << "\n";
     out << "w_RTTmin = " << w_RTTmin << "\n";
     return out.str();
 }

◆ str()

std::string inet::tcp::TcpWestwoodStateVariables::str ( ) const

overridevirtual

Reimplemented from inet::tcp::TcpBaseAlgStateVariables.

 {
     std::stringstream out;
     out << TcpBaseAlgStateVariables::str();
     out << " ssthresh=" << ssthresh;
     return out.str();
 }

Member Data Documentation

◆ regions

TcpSegmentTransmitInfoList inet::tcp::TcpWestwoodStateVariables::regions

Referenced by inet::tcp::TcpWestwood::dataSent(), inet::tcp::TcpWestwood::receivedDataAck(), and inet::tcp::TcpWestwood::segmentRetransmitted().

◆ ssthresh

uint32_t inet::tcp::TcpWestwoodStateVariables::ssthresh

slow start threshold

Referenced by detailedInfo(), inet::tcp::TcpWestwood::processRexmitTimer(), inet::tcp::TcpWestwood::recalculateSlowStartThreshold(), inet::tcp::TcpWestwood::receivedDataAck(), inet::tcp::TcpWestwood::receivedDuplicateAck(), str(), and TcpWestwoodStateVariables().

◆ w_a

double inet::tcp::TcpWestwoodStateVariables::w_a

Referenced by inet::tcp::TcpWestwood::processRexmitTimer(), inet::tcp::TcpWestwood::recalculateSlowStartThreshold(), inet::tcp::TcpWestwood::receivedDuplicateAck(), and TcpWestwoodStateVariables().

◆ w_bwe

double inet::tcp::TcpWestwoodStateVariables::w_bwe

Referenced by inet::tcp::TcpWestwood::recalculateBWE(), inet::tcp::TcpWestwood::recalculateSlowStartThreshold(), and TcpWestwoodStateVariables().

◆ w_lastAckTime

simtime_t inet::tcp::TcpWestwoodStateVariables::w_lastAckTime

Referenced by inet::tcp::TcpWestwood::recalculateBWE(), and TcpWestwoodStateVariables().

◆ w_RTTmin

simtime_t inet::tcp::TcpWestwoodStateVariables::w_RTTmin

Referenced by detailedInfo(), inet::tcp::TcpWestwood::recalculateSlowStartThreshold(), inet::tcp::TcpWestwood::receivedDataAck(), and TcpWestwoodStateVariables().

◆ w_sample_bwe

double inet::tcp::TcpWestwoodStateVariables::w_sample_bwe