Base class for all RTT Estimators. More...

#include "rtt-estimator.h"

Inheritance diagram for ns3::RttEstimator:

Public Member Functions
	RttEstimator ()

	RttEstimator (const RttEstimator &r)
	Copy constructor. More...

virtual	~RttEstimator ()

virtual Ptr< RttEstimator >	Copy () const =0
	Copy object (including current internal state) More...

Time	GetEstimate (void) const
	gets the RTT estimate. More...

virtual TypeId	GetInstanceTypeId (void) const
	Get the most derived TypeId for this Object. More...

uint32_t	GetNSamples (void) const
	gets the number of samples used in the estimates More...

Time	GetVariation (void) const
	Note that this is not a formal statistical variance; it has the the same units as the estimate. More...

virtual void	Measurement (Time t)=0
	Add a new measurement to the estimator. More...

virtual void	Reset ()
	Resets the estimation to its initial state. More...

Public Member Functions inherited from ns3::Object
	Object ()
	Constructor. More...

virtual	~Object ()
	Destructor. More...

void	AggregateObject (Ptr< Object > other)
	Aggregate two Objects together. More...

void	Dispose (void)
	Dispose of this Object. More...

AggregateIterator	GetAggregateIterator (void) const
	Get an iterator to the Objects aggregated to this one. More...

template<typename T >
Ptr< T >	GetObject (void) const
	Get a pointer to the requested aggregated Object. More...

template<typename T >
Ptr< T >	GetObject (TypeId tid) const
	Get a pointer to the requested aggregated Object by TypeId. More...

void	Initialize (void)
	Invoke DoInitialize on all Objects aggregated to this one. More...

bool	IsInitialized (void) const
	Check if the object has been initialized. More...

Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter >
	SimpleRefCount ()
	Default constructor. More...

	SimpleRefCount (const SimpleRefCount &o)
	Copy constructor. More...

uint32_t	GetReferenceCount (void) const
	Get the reference count of the object. More...

SimpleRefCount &	operator= (const SimpleRefCount &o)
	Assignment operator. More...

void	Ref (void) const
	Increment the reference count. More...

void	Unref (void) const
	Decrement the reference count. More...

Public Member Functions inherited from ns3::ObjectBase
virtual	~ObjectBase ()
	Virtual destructor. More...

void	GetAttribute (std::string name, AttributeValue &value) const
	Get the value of an attribute, raising fatal errors if unsuccessful. More...

bool	GetAttributeFailSafe (std::string name, AttributeValue &value) const
	Get the value of an attribute without raising erros. More...

void	SetAttribute (std::string name, const AttributeValue &value)
	Set a single attribute, raising fatal errors if unsuccessful. More...

bool	SetAttributeFailSafe (std::string name, const AttributeValue &value)
	Set a single attribute without raising errors. More...

bool	TraceConnect (std::string name, std::string context, const CallbackBase &cb)
	Connect a TraceSource to a Callback with a context. More...

bool	TraceConnectWithoutContext (std::string name, const CallbackBase &cb)
	Connect a TraceSource to a Callback without a context. More...

bool	TraceDisconnect (std::string name, std::string context, const CallbackBase &cb)
	Disconnect from a TraceSource a Callback previously connected with a context. More...

bool	TraceDisconnectWithoutContext (std::string name, const CallbackBase &cb)
	Disconnect from a TraceSource a Callback previously connected without a context. More...

Static Public Member Functions
static TypeId	GetTypeId (void)
	Get the type ID. More...

Static Public Member Functions inherited from ns3::Object
static TypeId	GetTypeId (void)
	Register this type. More...

Static Public Member Functions inherited from ns3::ObjectBase
static TypeId	GetTypeId (void)
	Get the type ID. More...

Protected Attributes
Time	m_estimatedRtt
	Current estimate. More...

Time	m_estimatedVariation
	Current estimate variation. More...

uint32_t	m_nSamples
	Number of samples. More...

Private Attributes
Time	m_initialEstimatedRtt
	Initial RTT estimation. More...

Additional Inherited Members
Protected Member Functions inherited from ns3::Object
	Object (const Object &o)
	Copy an Object. More...

virtual void	DoDispose (void)
	Destructor implementation. More...

virtual void	DoInitialize (void)
	Initialize() implementation. More...

virtual void	NotifyNewAggregate (void)
	Notify all Objects aggregated to this one of a new Object being aggregated. More...

Protected Member Functions inherited from ns3::ObjectBase
void	ConstructSelf (const AttributeConstructionList &attributes)
	Complete construction of ObjectBase; invoked by derived classes. More...

virtual void	NotifyConstructionCompleted (void)
	Notifier called once the ObjectBase is fully constructed. More...

Related Functions inherited from ns3::ObjectBase
static TypeId	GetObjectIid (void)
	Ensure the TypeId for ObjectBase gets fully configured to anchor the inheritance tree properly. More...

Detailed Description

Base class for all RTT Estimators.

Introspection did not find any typical Config paths.

The RTT Estimator class computes an estimate of the round trip time observed in a series of Time measurements. The estimate is provided in the form of an estimate and a sample variation. Subclasses can implement different algorithms to provide values for the estimate and variation.

Attributes

InitialEstimation: Initial RTT estimate
- Set with class: ns3::TimeValue
- Underlying type: Time –9223372036854775808.0ns:+9223372036854775807.0ns
- Initial value: +1000000000.0ns
- Flags: construct write read

No TraceSources are defined for this type.
Size of this type is 64 bytes (on a 64-bit architecture).

Definition at line 43 of file rtt-estimator.h.

Constructor & Destructor Documentation

◆ RttEstimator() [1/2]

ns3::RttEstimator::RttEstimator ( )

Definition at line 74 of file rtt-estimator.cc.

References ns3::ObjectBase::ConstructSelf(), ns3::Time::GetSeconds(), m_estimatedRtt, m_estimatedVariation, m_initialEstimatedRtt, NS_LOG_DEBUG, and NS_LOG_FUNCTION.

◆ RttEstimator() [2/2]

ns3::RttEstimator::RttEstimator ( const RttEstimator & r )

Copy constructor.

Parameters

r	the object to copy

Definition at line 87 of file rtt-estimator.cc.

References NS_LOG_FUNCTION.

◆ ~RttEstimator()

ns3::RttEstimator::~RttEstimator ( )

virtual

Definition at line 97 of file rtt-estimator.cc.

References NS_LOG_FUNCTION.

Member Function Documentation

◆ Copy()

virtual Ptr<RttEstimator> ns3::RttEstimator::Copy ( ) const

pure virtual

Copy object (including current internal state)

Returns: a copy of itself

Implemented in ns3::RttMeanDeviation.

◆ GetEstimate()

Time ns3::RttEstimator::GetEstimate ( void ) const

gets the RTT estimate.

Returns: The RTT estimate.

Definition at line 60 of file rtt-estimator.cc.

References m_estimatedRtt.

Referenced by RttEstimatorTestCase::CheckValues(), RttEstimatorTestCase::CheckValuesWithTolerance(), RttEstimatorTestCase::DoRun(), TcpRttEstimationTest::Tx(), and TcpTimeRtoTest::Tx().

◆ GetInstanceTypeId()

TypeId ns3::RttEstimator::GetInstanceTypeId ( void ) const

virtual

Get the most derived TypeId for this Object.

This method is typically implemented by ns3::Object::GetInstanceTypeId but some classes which derive from ns3::ObjectBase directly have to implement it themselves.