nfd::fw::BestRouteStrategyBase Class Reference

#include <best-route-strategy.hpp>

Inheritance diagram for nfd::fw::BestRouteStrategyBase:

Collaboration diagram for nfd::fw::BestRouteStrategyBase:

Public Member Functions
void	afterReceiveInterest (const Face &inFace, const Interest &interest, const shared_ptr< pit::Entry > &pitEntry) override
	trigger after Interest is received More...
Public Member Functions inherited from nfd::fw::Strategy
	Strategy (Forwarder &forwarder)
	construct a strategy instance More...
virtual	~Strategy ()
const Name &	getInstanceName () const
virtual void	beforeSatisfyInterest (const shared_ptr< pit::Entry > &pitEntry, const Face &inFace, const Data &data)
	trigger before PIT entry is satisfied More...
virtual void	afterContentStoreHit (const shared_ptr< pit::Entry > &pitEntry, const Face &inFace, const Data &data)
	trigger after a Data is matched in CS More...
virtual void	afterReceiveData (const shared_ptr< pit::Entry > &pitEntry, const Face &inFace, const Data &data)
	trigger after Data is received More...
virtual void	afterReceiveNack (const Face &inFace, const lp::Nack &nack, const shared_ptr< pit::Entry > &pitEntry)
	trigger after Nack is received More...
virtual void	onDroppedInterest (const Face &outFace, const Interest &interest)
	trigger after Interest dropped for exceeding allowed retransmissions More...

Protected Member Functions
	BestRouteStrategyBase (Forwarder &forwarder)
Protected Member Functions inherited from nfd::fw::Strategy
void	sendInterest (const shared_ptr< pit::Entry > &pitEntry, Face &outFace, const Interest &interest)
	send Interest to outFace More...
void	sendData (const shared_ptr< pit::Entry > &pitEntry, const Data &data, const Face &outFace)
	send data to outFace More...
void	sendDataToAll (const shared_ptr< pit::Entry > &pitEntry, const Face &inFace, const Data &data)
	send data to all matched and qualified faces More...
void	rejectPendingInterest (const shared_ptr< pit::Entry > &pitEntry)
	schedule the PIT entry for immediate deletion More...
void	sendNack (const shared_ptr< pit::Entry > &pitEntry, const Face &outFace, const lp::NackHeader &header)
	send Nack to outFace More...
void	sendNacks (const shared_ptr< pit::Entry > &pitEntry, const lp::NackHeader &header, std::initializer_list< const Face * > exceptFaces=std::initializer_list< const Face * >())
	send Nack to every face that has an in-record, except those in exceptFaces More...
void	setExpiryTimer (const shared_ptr< pit::Entry > &pitEntry, time::milliseconds duration)
	Schedule the PIT entry to be erased after duration. More...
const fib::Entry &	lookupFib (const pit::Entry &pitEntry) const
	performs a FIB lookup, considering Link object if present More...
MeasurementsAccessor &	getMeasurements ()
Face *	getFace (FaceId id) const
const FaceTable &	getFaceTable () const
void	setInstanceName (const Name &name)
	set strategy instance name More...

Additional Inherited Members
Static Public Member Functions inherited from nfd::fw::Strategy
template<typename S >
static void	registerType (const Name &strategyName=S::getStrategyName())
	register a strategy type More...
static bool	canCreate (const Name &instanceName)
static unique_ptr< Strategy >	create (const Name &instanceName, Forwarder &forwarder)
static bool	areSameType (const Name &instanceNameA, const Name &instanceNameB)
static std::set< Name >	listRegistered ()
static const Name &	getStrategyName ()
Static Protected Member Functions inherited from nfd::fw::Strategy
static ParsedInstanceName	parseInstanceName (const Name &input)
	parse a strategy instance name More...
static Name	makeInstanceName (const Name &input, const Name &strategyName)
	construct a strategy instance name More...
Protected Attributes inherited from nfd::fw::Strategy
signal::Signal< FaceTable, Face & > &	afterAddFace
signal::Signal< FaceTable, Face & > &	beforeRemoveFace

Detailed Description

Definition at line 34 of file best-route-strategy.hpp.

Constructor & Destructor Documentation

BestRouteStrategyBase()

nfd::fw::BestRouteStrategyBase::BestRouteStrategyBase ( Forwarder &  forwarder )

protected

Definition at line 32 of file best-route-strategy.cpp.

Member Function Documentation

afterReceiveInterest()

void nfd::fw::BestRouteStrategyBase::afterReceiveInterest ( const Face &  inFace, const Interest &  interest, const shared_ptr< pit::Entry > &  pitEntry  )

overridevirtual

trigger after Interest is received

The Interest:

• does not violate Scope
• is not looped
• cannot be satisfied by ContentStore
• is under a namespace managed by this strategy

The PIT entry is set to expire after InterestLifetime has elapsed at each downstream.

The strategy should decide whether and where to forward this Interest.

• If the strategy decides to forward this Interest, invoke sendInterest for each upstream, either now or shortly after via a scheduler event, but before PIT entry expires. Optionally, the strategy can invoke setExpiryTimer to adjust how long it would wait for a response.
• If the strategy has already forwarded this Interest previously and decides to continue waiting, do nothing. Optionally, the strategy can invoke setExpiryTimer to adjust how long it would wait for a response.
• If the strategy concludes that this Interest cannot be satisfied, invoke rejectPendingInterest to erase the PIT entry.

Warning

The strategy must not retain shared_ptr<pit::Entry>, otherwise undefined behavior may occur. However, the strategy is allowed to store weak_ptr<pit::Entry>.

Implements nfd::fw::Strategy.

Definition at line 38 of file best-route-strategy.cpp.

References nfd::fw::canForwardToLegacy(), nfd::fib::Entry::getNextHops(), nfd::fw::hasPendingOutRecords(), nfd::fw::Strategy::lookupFib(), nfd::fw::Strategy::rejectPendingInterest(), nfd::fw::Strategy::sendInterest(), and nfd::fw::wouldViolateScope().

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

• ndnSIM/NFD/daemon/fw/best-route-strategy.hpp
• ndnSIM/NFD/daemon/fw/best-route-strategy.cpp