Testing TcpYeah multiplicative decrease algorithm. More...

Inheritance diagram for TcpYeahDecrementTest:

Collaboration diagram for TcpYeahDecrementTest:

Public Member Functions
	TcpYeahDecrementTest (uint32_t cWnd, uint32_t ssThresh, uint32_t segmentSize, SequenceNumber32 nextTxSeq, SequenceNumber32 lastAckedSeq, Time minRtt, UintegerValue rho, const std::string &name)
	Constructor.

Public Member Functions inherited from ns3::TestCase
	TestCase (const TestCase &)=delete

virtual	~TestCase ()
	Destructor.

std::string	GetName () const

TestCase &	operator= (const TestCase &)=delete

Private Member Functions
uint32_t	CalculateSsThresh (Ptr< TcpYeah > cong)
	Calculate the Slow Start threshold.

void	DoRun () override
	Implementation to actually run this TestCase.

Private Attributes
Time	m_baseRtt
	Base RTT.

uint32_t	m_cWnd
	Congestion window.

uint32_t	m_doingRenoNow
	TCP Reno fallback.

SequenceNumber32	m_lastAckedSeq
	Last ACKed sequence number.

Time	m_minRtt
	Min RTT.

SequenceNumber32	m_nextTxSeq
	Next Tx sequence number.

UintegerValue	m_rho
	TCP Yeah rho param.

uint32_t	m_segmentsAcked
	Number of segments ACKed.

uint32_t	m_segmentSize
	Segment size.

uint32_t	m_ssThresh
	Slow Start Threshold.

Additional Inherited Members
Public Types inherited from ns3::TestCase
enum class	Duration { QUICK = 1 , EXTENSIVE = 2 , TAKES_FOREVER = 3 }
	How long the test takes to execute. More...

Static Public Attributes inherited from ns3::TestCase
static constexpr auto	QUICK = Duration::QUICK
	Deprecated test duration simple enums.

static constexpr auto	EXTENSIVE = Duration::EXTENSIVE

static constexpr auto	TAKES_FOREVER = Duration::TAKES_FOREVER

Protected Member Functions inherited from ns3::TestCase
	TestCase (std::string name)
	Constructor.

void	AddTestCase (TestCase *testCase, Duration duration=Duration::QUICK)
	Add an individual child TestCase to this test suite.

TestCase *	GetParent () const
	Get the parent of this TestCase.

bool	IsStatusFailure () const
	Check if any tests failed.

bool	IsStatusSuccess () const
	Check if all tests passed.

void	SetDataDir (std::string directory)
	Set the data directory where reference trace files can be found.

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.

bool	MustAssertOnFailure () const
	Check if this run should assert on failure.

bool	MustContinueOnFailure () const
	Check if this run should continue on failure.

std::string	CreateDataDirFilename (std::string filename)
	Construct the full path to a file in the data directory.

std::string	CreateTempDirFilename (std::string filename)
	Construct the full path to a file in a temporary directory.

Detailed Description

Testing TcpYeah multiplicative decrease algorithm.

Definition at line 210 of file tcp-yeah-test.cc.

Constructor & Destructor Documentation

◆ TcpYeahDecrementTest()

TcpYeahDecrementTest::TcpYeahDecrementTest	(	uint32_t	cWnd,
		uint32_t	ssThresh,
		uint32_t	segmentSize,
		SequenceNumber32	nextTxSeq,
		SequenceNumber32	lastAckedSeq,
		Time	minRtt,
		UintegerValue	rho,
		const std::string &	name )

Constructor.

Parameters

cWnd	Congestion window.
ssThresh	Slow Start Threshold.
segmentSize	Segment size.
nextTxSeq	Next Tx sequence number.
lastAckedSeq	Last ACKed sequence number.
minRtt	Minimum RTT.
rho	TCP Yeah rho param.
name	Test description.

Definition at line 254 of file tcp-yeah-test.cc.

Member Function Documentation

◆ CalculateSsThresh()

uint32_t TcpYeahDecrementTest::CalculateSsThresh ( Ptr< TcpYeah > cong )

private

Calculate the Slow Start threshold.

Parameters

cong	The TCP state.

Returns: The SshThreshold.

Definition at line 315 of file tcp-yeah-test.cc.

References ns3::UintegerValue::Get(), ns3::Time::GetSeconds(), m_baseRtt, m_cWnd, m_doingRenoNow, m_minRtt, m_rho, m_segmentSize, NS_LOG_INFO, and NS_LOG_LOGIC.

Referenced by DoRun().

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◆ DoRun()

void TcpYeahDecrementTest::DoRun ( )

overrideprivatevirtual

Implementation to actually run this TestCase.

Subclasses should override this method to conduct their tests.

Implements ns3::TestCase.

Definition at line 277 of file tcp-yeah-test.cc.

References ns3::TcpSocketState::CA_OPEN, CalculateSsThresh(), ns3::CreateObject(), m_baseRtt, m_cWnd, m_lastAckedSeq, m_minRtt, m_nextTxSeq, m_rho, m_segmentsAcked, m_segmentSize, m_ssThresh, and NS_TEST_ASSERT_MSG_EQ.

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Member Data Documentation

◆ m_baseRtt

Time TcpYeahDecrementTest::m_baseRtt

private

Base RTT.

Definition at line 249 of file tcp-yeah-test.cc.

Referenced by CalculateSsThresh(), and DoRun().

◆ m_cWnd

uint32_t TcpYeahDecrementTest::m_cWnd

private

Congestion window.

Definition at line 242 of file tcp-yeah-test.cc.

Referenced by CalculateSsThresh(), and DoRun().

◆ m_doingRenoNow

uint32_t TcpYeahDecrementTest::m_doingRenoNow

private

TCP Reno fallback.

Definition at line 245 of file tcp-yeah-test.cc.

Referenced by CalculateSsThresh().

◆ m_lastAckedSeq

SequenceNumber32 TcpYeahDecrementTest::m_lastAckedSeq

private

Last ACKed sequence number.

Definition at line 247 of file tcp-yeah-test.cc.

Referenced by DoRun().

◆ m_minRtt

Time TcpYeahDecrementTest::m_minRtt

private

Min RTT.

Definition at line 248 of file tcp-yeah-test.cc.

Referenced by CalculateSsThresh(), and DoRun().

◆ m_nextTxSeq

SequenceNumber32 TcpYeahDecrementTest::m_nextTxSeq

private

Next Tx sequence number.

Definition at line 246 of file tcp-yeah-test.cc.

Referenced by DoRun().

◆ m_rho

UintegerValue TcpYeahDecrementTest::m_rho

private

TCP Yeah rho param.

Definition at line 251 of file tcp-yeah-test.cc.

Referenced by CalculateSsThresh(), and DoRun().

◆ m_segmentsAcked

uint32_t TcpYeahDecrementTest::m_segmentsAcked

private

Number of segments ACKed.

Definition at line 250 of file tcp-yeah-test.cc.

Referenced by DoRun().

◆ m_segmentSize

uint32_t TcpYeahDecrementTest::m_segmentSize

private

Segment size.

Definition at line 244 of file tcp-yeah-test.cc.

Referenced by CalculateSsThresh(), and DoRun().

◆ m_ssThresh

uint32_t TcpYeahDecrementTest::m_ssThresh

private

Slow Start Threshold.

Definition at line 243 of file tcp-yeah-test.cc.

Referenced by DoRun().

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

src/internet/test/tcp-yeah-test.cc

Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ TcpYeahDecrementTest()

Member Function Documentation

◆ CalculateSsThresh()

◆ DoRun()

Member Data Documentation

◆ m_baseRtt

◆ m_cWnd

◆ m_doingRenoNow

◆ m_lastAckedSeq

◆ m_minRtt

◆ m_nextTxSeq

◆ m_rho

◆ m_segmentsAcked

◆ m_segmentSize

◆ m_ssThresh