A Discrete-Event Network Simulator
API
TcpHtcpIncrementTest Class Reference

Testing the congestion avoidance increment on TcpHtcp. More...

+ Inheritance diagram for TcpHtcpIncrementTest:
+ Collaboration diagram for TcpHtcpIncrementTest:

Public Member Functions

 TcpHtcpIncrementTest (uint32_t cWnd, uint32_t segmentSize, uint32_t segmentsAcked, Time lastCongestion, Time firstAck, Time secondAck, uint32_t expectedCwnd, const std::string &name)
 Constructor. More...
 
- 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 DoRun () override
 Since the calculation depends on the throughput and its associated timing, we schedule a few exact events. More...
 

Private Attributes

uint32_t m_cWnd
 Congestion window. More...
 
uint32_t m_expectedCwnd
 Expected cWnd. More...
 
Time m_firstAck
 First ACK time. More...
 
Time m_lastCongestion
 Last congestion time. More...
 
Time m_secondAck
 Second ACK time. More...
 
uint32_t m_segmentsAcked
 Segments already ACKed. More...
 
uint32_t m_segmentSize
 Segment size. More...
 
Ptr< TcpSocketStatem_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...
 
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

Testing the congestion avoidance increment on TcpHtcp.

Definition at line 42 of file tcp-htcp-test.cc.

Constructor & Destructor Documentation

◆ TcpHtcpIncrementTest()

TcpHtcpIncrementTest::TcpHtcpIncrementTest ( uint32_t  cWnd,
uint32_t  segmentSize,
uint32_t  segmentsAcked,
Time  lastCongestion,
Time  firstAck,
Time  secondAck,
uint32_t  expectedCwnd,
const std::string &  name 
)

Constructor.

Parameters
cWndCongestion window.
segmentSizeSegment size.
segmentsAckedSegments already ACKed.
lastCongestionLast congestion time.
firstAckFirst ACK time.
secondAckSecond ACK time.
expectedCwndExpected cWnd.
nameTest description.

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

Member Function Documentation

◆ DoRun()

void TcpHtcpIncrementTest::DoRun ( void  )
overrideprivatevirtual

Since the calculation depends on the throughput and its associated timing, we schedule a few exact events.

We get the value from HTCP methods during the simulation and compare them with their associated expected values calculated from the algorithm by hand.

Implements ns3::TestCase.

Definition at line 104 of file tcp-htcp-test.cc.

References ns3::TracedValue< T >::Get(), ns3::TcpSocketState::m_cWnd, m_cWnd, m_expectedCwnd, m_firstAck, m_lastCongestion, m_secondAck, m_segmentsAcked, ns3::TcpSocketState::m_segmentSize, m_segmentSize, m_state, ns3::MilliSeconds(), NS_LOG_DEBUG, NS_LOG_FUNCTION, and NS_TEST_ASSERT_MSG_EQ.

+ Here is the call graph for this function:

Member Data Documentation

◆ m_cWnd

uint32_t TcpHtcpIncrementTest::m_cWnd
private

Congestion window.

Definition at line 68 of file tcp-htcp-test.cc.

Referenced by DoRun().

◆ m_expectedCwnd

uint32_t TcpHtcpIncrementTest::m_expectedCwnd
private

Expected cWnd.

Definition at line 74 of file tcp-htcp-test.cc.

Referenced by DoRun().

◆ m_firstAck

Time TcpHtcpIncrementTest::m_firstAck
private

First ACK time.

Definition at line 72 of file tcp-htcp-test.cc.

Referenced by DoRun().

◆ m_lastCongestion

Time TcpHtcpIncrementTest::m_lastCongestion
private

Last congestion time.

Definition at line 71 of file tcp-htcp-test.cc.

Referenced by DoRun().

◆ m_secondAck

Time TcpHtcpIncrementTest::m_secondAck
private

Second ACK time.

Definition at line 73 of file tcp-htcp-test.cc.

Referenced by DoRun().

◆ m_segmentsAcked

uint32_t TcpHtcpIncrementTest::m_segmentsAcked
private

Segments already ACKed.

Definition at line 70 of file tcp-htcp-test.cc.

Referenced by DoRun().

◆ m_segmentSize

uint32_t TcpHtcpIncrementTest::m_segmentSize
private

Segment size.

Definition at line 69 of file tcp-htcp-test.cc.

Referenced by DoRun().

◆ m_state

Ptr<TcpSocketState> TcpHtcpIncrementTest::m_state
private

TCP socket state.

Definition at line 75 of file tcp-htcp-test.cc.

Referenced by DoRun().


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