a forwarding strategy that forwards Interest to all FIB nexthops More...

#include <multicast-strategy.hpp>

Inheritance diagram for nfd::fw::MulticastStrategy:

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Collaboration diagram for nfd::fw::MulticastStrategy:

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Public Member Functions
	MulticastStrategy (Forwarder &forwarder, const Name &name=getStrategyName())

void	afterReceiveInterest (const Face &inFace, const Interest &interest, const shared_ptr< pit::Entry > &pitEntry) override
	trigger after Interest is received More...

void	afterReceiveNack (const Face &inFace, const lp::Nack &nack, const shared_ptr< pit::Entry > &pitEntry) override
	trigger after Nack 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	beforeExpirePendingInterest (const shared_ptr< pit::Entry > &pitEntry)
	trigger before PIT entry expires More...

virtual void	onDroppedInterest (const Face &outFace, const Interest &interest)
	trigger after Interest dropped for exceeding allowed retransmissions More...

Static Public Member Functions
static const Name &	getStrategyName ()

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 ()

Additional Inherited Members
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	rejectPendingInterest (const shared_ptr< pit::Entry > &pitEntry)
	decide that a pending Interest cannot be forwarded 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...

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...

Protected Member Functions inherited from nfd::fw::ProcessNackTraits< MulticastStrategy >
	ProcessNackTraits (MulticastStrategy *strategy)

Protected Member Functions inherited from nfd::fw::ProcessNackTraitsBase
virtual	~ProcessNackTraitsBase ()=default

void	processNack (const Face &inFace, const lp::Nack &nack, const shared_ptr< pit::Entry > &pitEntry)

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

a forwarding strategy that forwards Interest to all FIB nexthops

Definition at line 38 of file multicast-strategy.hpp.

Constructor & Destructor Documentation

◆ MulticastStrategy()

nfd::fw::MulticastStrategy::MulticastStrategy	(	Forwarder &	forwarder,
		const Name &	name = `getStrategyName()`
	)

explicit

Definition at line 40 of file multicast-strategy.cpp.

References getStrategyName(), nfd::fw::Strategy::makeInstanceName(), nfd::fw::Strategy::ParsedInstanceName::parameters, nfd::fw::Strategy::parseInstanceName(), nfd::fw::Strategy::setInstanceName(), ndn::to_string(), and nfd::fw::Strategy::ParsedInstanceName::version.

Member Function Documentation

◆ getStrategyName()

const Name & nfd::fw::MulticastStrategy::getStrategyName ( )

static

Definition at line 59 of file multicast-strategy.cpp.

Referenced by MulticastStrategy().

◆ afterReceiveInterest()

void nfd::fw::MulticastStrategy::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 strategy should decide whether and where to forward this Interest.

If the strategy decides to forward this Interest, invoke this->sendInterest one or more times, either now or shortly after
If strategy concludes that this Interest cannot be forwarded, invoke this->rejectPendingInterest so that PIT entry will be deleted shortly

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 66 of file multicast-strategy.cpp.

References nfd::fw::RetxSuppressionExponential::decidePerUpstream(), nfd::fw::FORWARD, nfd::face::Face::getId(), nfd::face::Face::getLinkType(), nfd::fib::Entry::getNextHops(), nfd::fw::RetxSuppressionExponential::incrementIntervalForOutRecord(), ndn::nfd::LINK_TYPE_AD_HOC, nfd::fw::Strategy::lookupFib(), NFD_LOG_DEBUG, nfd::fw::Strategy::rejectPendingInterest(), nfd::fw::Strategy::sendInterest(), nfd::fw::Strategy::sendNack(), ndn::lp::NackHeader::setReason(), nfd::fw::SUPPRESS, and nfd::fw::wouldViolateScope().

◆ afterReceiveNack()

void nfd::fw::MulticastStrategy::afterReceiveNack	(	const Face &	inFace,
		const lp::Nack &	nack,
		const shared_ptr< pit::Entry > &	pitEntry
	)

overridevirtual

trigger after Nack is received

This trigger is invoked when an incoming Nack is received in response to an forwarded Interest. The Nack has been confirmed to be a response to the last Interest forwarded to that upstream, i.e. the PIT out-record exists and has a matching Nonce. The NackHeader has been recorded in the PIT out-record.

In this base class this method does nothing.

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>.

Reimplemented from nfd::fw::Strategy.

Definition at line 115 of file multicast-strategy.cpp.

References nfd::fw::ProcessNackTraitsBase::processNack().

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

ndnSIM/NFD/daemon/fw/multicast-strategy.hpp
ndnSIM/NFD/daemon/fw/multicast-strategy.cpp

Public Member Functions

Static Public Member Functions