A Discrete-Event Network Simulator
API

Tests of TCP implementation loss behavior. More...

+ Inheritance diagram for Ns3TcpLossTestCase:
+ Collaboration diagram for Ns3TcpLossTestCase:

Public Member Functions

 Ns3TcpLossTestCase ()
 
 Ns3TcpLossTestCase (std::string tcpModel, uint32_t testCase)
 Constructor. More...
 
 ~Ns3TcpLossTestCase () override
 
- Public Member Functions inherited from ns3::TestCase
 TestCase (const TestCase &)=delete
 
virtual ~TestCase ()
 Destructor. More...
 
std::string GetName () const
 
TestCaseoperator= (const TestCase &)=delete
 

Private Member Functions

void CwndTracer (uint32_t oldval, uint32_t newval)
 CWND trace. More...
 
void DoRun () override
 Implementation to actually run this TestCase. More...
 
void DoSetup () override
 Implementation to do any local setup required for this TestCase. More...
 
void DoTeardown () override
 Implementation to do any local setup required for this TestCase. More...
 
void Ipv4L3Tx (std::string context, Ptr< const Packet > packet, Ptr< Ipv4 > ipv4, uint32_t interface)
 Check that the transmitted packets are consistent with the trace. More...
 
void StartFlow (Ptr< Socket > localSocket, Ipv4Address servAddress, uint16_t servPort)
 Start transmitting a TCP flow. More...
 
void WriteUntilBufferFull (Ptr< Socket > localSocket, uint32_t txSpace)
 Write to the socket until the buffer is full. More...
 

Private Attributes

uint32_t m_currentTxBytes
 Current number of bytes sent. More...
 
bool m_needToClose
 Check if the sending socket need to be closed. More...
 
Ptr< OutputStreamWrapperm_osw
 The output stream. More...
 
PcapFile m_pcapFile
 The PCAP ffile. More...
 
std::string m_pcapFilename
 The PCAP filename. More...
 
std::string m_tcpModel
 The TCP model name. More...
 
uint32_t m_testCase
 Testcase number. More...
 
uint32_t m_totalTxBytes
 Total number of bytes to send. More...
 
bool m_writeLogging
 True if write logging. More...
 
bool m_writeResults
 True if write PCAP files. More...
 
bool m_writeVectors
 True if response vectors have to be written (and not read). 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...
 
TestCaseGetParent () const
 Get the parent of this TestCase. More...
 
bool IsStatusFailure () const
 Check if any tests failed. More...
 
bool IsStatusSuccess () 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 () const
 Check if this run should assert on failure. More...
 
bool MustContinueOnFailure () 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

Tests of TCP implementation loss behavior.

Definition at line 69 of file ns3tcp-loss-test-suite.cc.

Constructor & Destructor Documentation

◆ Ns3TcpLossTestCase() [1/2]

Ns3TcpLossTestCase::Ns3TcpLossTestCase ( )

Definition at line 140 of file ns3tcp-loss-test-suite.cc.

◆ Ns3TcpLossTestCase() [2/2]

Ns3TcpLossTestCase::Ns3TcpLossTestCase ( std::string  tcpModel,
uint32_t  testCase 
)

Constructor.

Parameters
tcpModelThe TCP model name.
testCaseTestcase number.

Definition at line 153 of file ns3tcp-loss-test-suite.cc.

◆ ~Ns3TcpLossTestCase()

Ns3TcpLossTestCase::~Ns3TcpLossTestCase ( )
inlineoverride

Definition at line 82 of file ns3tcp-loss-test-suite.cc.

Member Function Documentation

◆ CwndTracer()

void Ns3TcpLossTestCase::CwndTracer ( uint32_t  oldval,
uint32_t  newval 
)
private

CWND trace.

Parameters
oldvalThe old value.
newvalThe new value.

Definition at line 279 of file ns3tcp-loss-test-suite.cc.

References ns3::Time::GetSeconds(), ns3::OutputStreamWrapper::GetStream(), m_osw, m_writeLogging, and ns3::Now().

Referenced by DoRun().

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◆ DoRun()

◆ DoSetup()

void Ns3TcpLossTestCase::DoSetup ( )
overrideprivatevirtual

Implementation to do any local setup required for this TestCase.

Subclasses should override this method to perform any costly per-test setup before DoRun is invoked.

Reimplemented from ns3::TestCase.

Definition at line 167 of file ns3tcp-loss-test-suite.cc.

References ns3::TestCase::CreateDataDirFilename(), ns3::PcapFile::GetDataLinkType(), ns3::TcpClassicRecovery::GetTypeId(), ns3::PcapFile::Init(), m_pcapFile, m_pcapFilename, m_tcpModel, m_testCase, m_writeVectors, NS_ABORT_MSG_UNLESS, ns3::PcapFile::Open(), PCAP_LINK_TYPE, PCAP_SNAPLEN, and ns3::Config::SetDefault().

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◆ DoTeardown()

void Ns3TcpLossTestCase::DoTeardown ( )
overrideprivatevirtual

Implementation to do any local setup required for this TestCase.

Subclasses should override this method to perform any costly per-test teardown

Reimplemented from ns3::TestCase.

Definition at line 199 of file ns3tcp-loss-test-suite.cc.

References ns3::PcapFile::Close(), and m_pcapFile.

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◆ Ipv4L3Tx()

void Ns3TcpLossTestCase::Ipv4L3Tx ( std::string  context,
Ptr< const Packet packet,
Ptr< Ipv4 ipv4,
uint32_t  interface 
)
private

Check that the transmitted packets are consistent with the trace.

This callback is hooked to ns3::Ipv4L3Protocol/Tx.

Parameters
contextThe callback context (unused).
packetThe transmitted packet.
ipv4The IPv4 object that did send the packet (unused).
interfaceThe IPv4 interface that did send the packet (unused).

Definition at line 205 of file ns3tcp-loss-test-suite.cc.

References ns3::Packet::Copy(), ns3::Packet::CopyData(), ns3::Time::GetMicroSeconds(), ns3::TestCase::IsStatusSuccess(), m_pcapFile, m_tcpModel, m_testCase, m_writeVectors, ns3::Now(), NS_LOG_DEBUG, NS_LOG_INFO, NS_TEST_EXPECT_MSG_EQ, PCAP_SNAPLEN, ns3::PcapFile::Read(), ns3::Packet::RemoveHeader(), and ns3::PcapFile::Write().

Referenced by DoRun().

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◆ StartFlow()

void Ns3TcpLossTestCase::StartFlow ( Ptr< Socket localSocket,
Ipv4Address  servAddress,
uint16_t  servPort 
)
private

Start transmitting a TCP flow.

Parameters
localSocketThe sending socket.
servAddressThe IPv4 address of the server (i.e., the destination address).
servPortThe TCP port of the server (i.e., the destination port).

Definition at line 325 of file ns3tcp-loss-test-suite.cc.

References ns3::Socket::Connect(), ns3::Time::GetSeconds(), ns3::Socket::GetTxAvailable(), m_writeLogging, ns3::MakeCallback(), ns3::Now(), ns3::Socket::SetSendCallback(), and WriteUntilBufferFull().

Referenced by DoRun().

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◆ WriteUntilBufferFull()

void Ns3TcpLossTestCase::WriteUntilBufferFull ( Ptr< Socket localSocket,
uint32_t  txSpace 
)
private

Write to the socket until the buffer is full.

Parameters
localSocketThe output socket.
txSpaceThe space left on the socket (unused).

Definition at line 291 of file ns3tcp-loss-test-suite.cc.

References ns3::Socket::Close(), ns3::Time::GetSeconds(), ns3::Socket::GetTxAvailable(), m_currentTxBytes, m_needToClose, m_totalTxBytes, m_writeLogging, min, ns3::Now(), NS_ASSERT, and ns3::Socket::Send().

Referenced by StartFlow().

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Member Data Documentation

◆ m_currentTxBytes

uint32_t Ns3TcpLossTestCase::m_currentTxBytes
private

Current number of bytes sent.

Definition at line 96 of file ns3tcp-loss-test-suite.cc.

Referenced by WriteUntilBufferFull().

◆ m_needToClose

bool Ns3TcpLossTestCase::m_needToClose
private

Check if the sending socket need to be closed.

Definition at line 100 of file ns3tcp-loss-test-suite.cc.

Referenced by WriteUntilBufferFull().

◆ m_osw

Ptr<OutputStreamWrapper> Ns3TcpLossTestCase::m_osw
private

The output stream.

Definition at line 91 of file ns3tcp-loss-test-suite.cc.

Referenced by CwndTracer(), and DoRun().

◆ m_pcapFile

PcapFile Ns3TcpLossTestCase::m_pcapFile
private

The PCAP ffile.

Definition at line 93 of file ns3tcp-loss-test-suite.cc.

Referenced by DoSetup(), DoTeardown(), and Ipv4L3Tx().

◆ m_pcapFilename

std::string Ns3TcpLossTestCase::m_pcapFilename
private

The PCAP filename.

Definition at line 92 of file ns3tcp-loss-test-suite.cc.

Referenced by DoSetup().

◆ m_tcpModel

std::string Ns3TcpLossTestCase::m_tcpModel
private

The TCP model name.

Definition at line 101 of file ns3tcp-loss-test-suite.cc.

Referenced by DoRun(), DoSetup(), and Ipv4L3Tx().

◆ m_testCase

uint32_t Ns3TcpLossTestCase::m_testCase
private

Testcase number.

Definition at line 94 of file ns3tcp-loss-test-suite.cc.

Referenced by DoRun(), DoSetup(), and Ipv4L3Tx().

◆ m_totalTxBytes

uint32_t Ns3TcpLossTestCase::m_totalTxBytes
private

Total number of bytes to send.

Definition at line 95 of file ns3tcp-loss-test-suite.cc.

Referenced by WriteUntilBufferFull().

◆ m_writeLogging

bool Ns3TcpLossTestCase::m_writeLogging
private

True if write logging.

Definition at line 99 of file ns3tcp-loss-test-suite.cc.

Referenced by CwndTracer(), DoRun(), StartFlow(), and WriteUntilBufferFull().

◆ m_writeResults

bool Ns3TcpLossTestCase::m_writeResults
private

True if write PCAP files.

Definition at line 98 of file ns3tcp-loss-test-suite.cc.

Referenced by DoRun().

◆ m_writeVectors

bool Ns3TcpLossTestCase::m_writeVectors
private

True if response vectors have to be written (and not read).

Definition at line 97 of file ns3tcp-loss-test-suite.cc.

Referenced by DoSetup(), and Ipv4L3Tx().


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