TcpVegasTest Class Reference

TcpVegas congestion control algorithm test. More...

Inheritance diagram for TcpVegasTest:

Collaboration diagram for TcpVegasTest:

Public Member Functions
	TcpVegasTest (uint32_t cWnd, uint32_t segmentSize, uint32_t ssThresh, Time rtt, uint32_t segmentsAcked, SequenceNumber32 nextTxSeq, SequenceNumber32 lastAckedSeq, const std::string &name)
	Constructor. More...
Public Member Functions inherited from ns3::TestCase
virtual	~TestCase ()
	Destructor. More...
std::string	GetName (void) const

Private Member Functions
virtual void	DoRun (void)
	Implementation to actually run this TestCase. More...
void	GetSsThresh (Ptr< TcpVegas > cong)
	brief Get and check the SSH threshold. More...
void	IncreaseWindow (Ptr< TcpVegas > cong)
	Increases the TCP window. More...

Private Attributes
uint32_t	m_cWnd
	Congestion window. More...
SequenceNumber32	m_lastAckedSeq
	Last ACKed sequence number. More...
SequenceNumber32	m_nextTxSeq
	Next Tx sequence number. More...
Time	m_rtt
	RTT. More...
uint32_t	m_segmentsAcked
	Number of segments ACKed. More...
uint32_t	m_segmentSize
	Segment size. More...
uint32_t	m_ssThresh
	Slow Start Threshold. More...
Ptr< TcpSocketState >	m_state
	TCP socket state. More...

Additional Inherited Members
Public Types inherited from ns3::TestCase
enum	TestDuration { QUICK = 1, EXTENSIVE = 2, TAKES_FOREVER = 3 }
	How long the test takes to execute. More...
Protected Member Functions inherited from ns3::TestCase
	TestCase (std::string name)
	Constructor. More...
void	AddTestCase (TestCase *testCase, TestDuration duration=QUICK)
	Add an individual child TestCase to this test suite. More...
TestCase *	GetParent () const
	Get the parent of this TestCsse. More...
bool	IsStatusFailure (void) const
	Check if any tests failed. More...
bool	IsStatusSuccess (void) const
	Check if all tests passed. More...
void	SetDataDir (std::string directory)
	Set the data directory where reference trace files can be found. More...
void	ReportTestFailure (std::string cond, std::string actual, std::string limit, std::string message, std::string file, int32_t line)
	Log the failure of this TestCase. More...
bool	MustAssertOnFailure (void) const
	Check if this run should assert on failure. More...
bool	MustContinueOnFailure (void) const
	Check if this run should continue on failure. More...
std::string	CreateDataDirFilename (std::string filename)
	Construct the full path to a file in the data directory. More...
std::string	CreateTempDirFilename (std::string filename)
	Construct the full path to a file in a temporary directory. More...

Detailed Description

TcpVegas congestion control algorithm test.

Definition at line 40 of file tcp-vegas-test.cc.

Constructor & Destructor Documentation

TcpVegasTest::TcpVegasTest	(	uint32_t	cWnd,
		uint32_t	segmentSize,
		uint32_t	ssThresh,
		Time	rtt,
		uint32_t	segmentsAcked,
		SequenceNumber32	nextTxSeq,
		SequenceNumber32	lastAckedSeq,
		const std::string &	name
	)

Constructor.

Parameters

cWnd	Congestion window.
segmentSize	Segment size.
ssThresh	Slow Start Threshold.
rtt	The RTT.
segmentsAcked	Number of segments ACKed.
nextTxSeq	Next Tx sequence number.
lastAckedSeq	Last ACKed sequence number.
name	Test description.

Definition at line 87 of file tcp-vegas-test.cc.

Member Function Documentation

void TcpVegasTest::DoRun ( void  )

privatevirtual

Implementation to actually run this TestCase.

Subclasses should override this method to conduct their tests.

Implements ns3::TestCase.

Definition at line 107 of file tcp-vegas-test.cc.

References ns3::TcpVegas::CongestionStateSet(), ns3::TracedValue< T >::Get(), IncreaseWindow(), ns3::TcpVegas::IncreaseWindow(), m_cWnd, ns3::TcpSocketState::m_cWnd, m_lastAckedSeq, ns3::TcpSocketState::m_lastAckedSeq, m_nextTxSeq, ns3::TcpSocketState::m_nextTxSequence, m_rtt, m_segmentsAcked, m_segmentSize, ns3::TcpSocketState::m_segmentSize, m_ssThresh, ns3::TcpSocketState::m_ssThresh, m_state, ns3::MilliSeconds(), NS_TEST_ASSERT_MSG_EQ, and ns3::TcpVegas::PktsAcked().

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void TcpVegasTest::GetSsThresh ( Ptr< TcpVegas >  cong )

private

brief Get and check the SSH threshold.

Parameters

cong	The congestion control.

Definition at line 195 of file tcp-vegas-test.cc.

References m_cWnd, m_segmentSize, m_ssThresh, max, and min.

Referenced by IncreaseWindow().

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void TcpVegasTest::IncreaseWindow ( Ptr< TcpVegas >  cong )

private

Increases the TCP window.

Parameters

cong	The congestion control.

Definition at line 143 of file tcp-vegas-test.cc.

References ns3::UintegerValue::Get(), ns3::ObjectBase::GetAttribute(), ns3::Time::GetMilliSeconds(), GetSsThresh(), m_cWnd, m_rtt, m_segmentsAcked, m_segmentSize, m_ssThresh, max, ns3::MilliSeconds(), and min.

Referenced by DoRun().

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Member Data Documentation

uint32_t TcpVegasTest::m_cWnd

private

Congestion window.

Definition at line 76 of file tcp-vegas-test.cc.

Referenced by DoRun(), GetSsThresh(), and IncreaseWindow().

SequenceNumber32 TcpVegasTest::m_lastAckedSeq

private

Last ACKed sequence number.

Definition at line 82 of file tcp-vegas-test.cc.

Referenced by DoRun().

SequenceNumber32 TcpVegasTest::m_nextTxSeq

private

Next Tx sequence number.

Definition at line 81 of file tcp-vegas-test.cc.

Referenced by DoRun().

Time TcpVegasTest::m_rtt

private

RTT.

Definition at line 79 of file tcp-vegas-test.cc.

Referenced by DoRun(), and IncreaseWindow().

uint32_t TcpVegasTest::m_segmentsAcked

private

Number of segments ACKed.

Definition at line 80 of file tcp-vegas-test.cc.

Referenced by DoRun(), and IncreaseWindow().

uint32_t TcpVegasTest::m_segmentSize

private

Segment size.

Definition at line 77 of file tcp-vegas-test.cc.

Referenced by DoRun(), GetSsThresh(), and IncreaseWindow().

uint32_t TcpVegasTest::m_ssThresh

private

Slow Start Threshold.

Definition at line 78 of file tcp-vegas-test.cc.

Referenced by DoRun(), GetSsThresh(), and IncreaseWindow().

Ptr<TcpSocketState> TcpVegasTest::m_state

private

TCP socket state.

Definition at line 84 of file tcp-vegas-test.cc.

Referenced by DoRun().

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The documentation for this class was generated from the following file:

• src/internet/test/tcp-vegas-test.cc