an Interest table entry More...

#include <pit-entry.hpp>

Inheritance diagram for nfd::pit::Entry:

Collaboration diagram for nfd::pit::Entry:

Public Member Functions
	Entry (const Interest &interest)

const Interest &	getInterest () const

const Name &	getName () const

bool	canMatch (const Interest &interest, size_t nEqualNameComps=0) const

const InRecordCollection &	getInRecords () const

bool	hasInRecords () const

InRecordCollection::iterator	in_begin ()

InRecordCollection::const_iterator	in_begin () const

InRecordCollection::iterator	in_end ()

InRecordCollection::const_iterator	in_end () const

InRecordCollection::iterator	getInRecord (const Face &face)
	get the in-record for `face` More...

InRecordCollection::iterator	insertOrUpdateInRecord (Face &face, const Interest &interest)
	insert or update an in-record More...

void	deleteInRecord (const Face &face)
	delete the in-record for `face` if it exists More...

void	clearInRecords ()
	delete all in-records More...

const OutRecordCollection &	getOutRecords () const

bool	hasOutRecords () const

OutRecordCollection::iterator	out_begin ()

OutRecordCollection::const_iterator	out_begin () const

OutRecordCollection::iterator	out_end ()

OutRecordCollection::const_iterator	out_end () const

OutRecordCollection::iterator	getOutRecord (const Face &face)
	get the out-record for `face` More...

OutRecordCollection::iterator	insertOrUpdateOutRecord (Face &face, const Interest &interest)
	insert or update an out-record More...

void	deleteOutRecord (const Face &face)
	delete the out-record for `face` if it exists More...

Public Member Functions inherited from nfd::StrategyInfoHost
template<typename T >
T *	getStrategyInfo () const
	get a StrategyInfo item More...

template<typename T , typename... A>
std::pair< T *, bool >	insertStrategyInfo (A &&...args)
	insert a StrategyInfo item More...

template<typename T >
size_t	eraseStrategyInfo ()
	erase a StrategyInfo item More...

void	clearStrategyInfo ()
	clear all StrategyInfo items More...

Public Attributes
scheduler::EventId	m_unsatisfyTimer
	unsatisfy timer More...

scheduler::EventId	m_stragglerTimer
	straggler timer More...

Friends
class	name_tree::Entry

Detailed Description

an Interest table entry

An Interest table entry represents either a pending Interest or a recently satisfied Interest. Each entry contains a collection of in-records, a collection of out-records, and two timers used in forwarding pipelines. In addition, the entry, in-records, and out-records are subclasses of StrategyInfoHost, which allows forwarding strategy to store arbitrary information on them.

Definition at line 57 of file pit-entry.hpp.

Constructor & Destructor Documentation

nfd::pit::Entry::Entry ( const Interest & interest )

explicit

Definition at line 32 of file pit-entry.cpp.

Member Function Documentation

const Interest& nfd::pit::Entry::getInterest ( ) const

inline

Returns: the representative Interest of the PIT entry

Note: Every Interest in in-records and out-records should have same Name and Selectors as the representative Interest.

Todo:: #3162 require Link field to match the representative Interest

Definition at line 69 of file pit-entry.hpp.

Referenced by nfd::insertNonceToDnl(), and nfd::fw::Strategy::lookupFib().

const Name& nfd::pit::Entry::getName ( ) const

inline

Returns: Interest Name

Definition at line 77 of file pit-entry.hpp.

Referenced by nfd::name_tree::NameTree::findLongestPrefixMatch(), nfd::insertNonceToDnl(), and nfd::name_tree::NameTree::lookup().

bool nfd::pit::Entry::canMatch	(	const Interest &	interest,
		size_t	nEqualNameComps = `0`
	)		const

Returns: whether interest matches this entry

Parameters

interest	the Interest
nEqualNameComps	number of initial name components guaranteed to be equal

Definition at line 39 of file pit-entry.cpp.

References ndn::Interest::getName(), ndn::Interest::getSelectors(), and ndn::Name::npos.

Referenced by insertOrUpdateInRecord(), and insertOrUpdateOutRecord().

const InRecordCollection& nfd::pit::Entry::getInRecords ( ) const

inline

Returns: collection of in-records

Definition at line 93 of file pit-entry.hpp.

Referenced by nfd::fw::findDuplicateNonce(), ns3::ndn::L3RateTracer::SatisfiedInterests(), and ns3::ndn::L3RateTracer::TimedOutInterests().

bool nfd::pit::Entry::hasInRecords ( ) const

inline

Return values

true	There is at least one in-record. This implies some downstream is waiting for Data or Nack.
false	There is no in-record. This implies the entry is new or has been satisfied or Nacked.

Definition at line 104 of file pit-entry.hpp.

InRecordCollection::iterator nfd::pit::Entry::in_begin ( )

inline

Definition at line 110 of file pit-entry.hpp.

Referenced by nfd::fw::canForwardToLegacy().

InRecordCollection::const_iterator nfd::pit::Entry::in_begin ( ) const

inline

Definition at line 116 of file pit-entry.hpp.

InRecordCollection::iterator nfd::pit::Entry::in_end ( )

inline

Definition at line 122 of file pit-entry.hpp.

Referenced by nfd::fw::canForwardToLegacy().

InRecordCollection::const_iterator nfd::pit::Entry::in_end ( ) const

inline

Definition at line 128 of file pit-entry.hpp.

References Face.

InRecordCollection::iterator nfd::pit::Entry::getInRecord ( const Face & face )

get the in-record for face

Returns: an iterator to the in-record, or .in_end() if it does not exist

Definition at line 51 of file pit-entry.cpp.

InRecordCollection::iterator nfd::pit::Entry::insertOrUpdateInRecord	(	Face &	face,
		const Interest &	interest
	)

insert or update an in-record

Returns: an iterator to the new or updated in-record

Definition at line 58 of file pit-entry.cpp.

References canMatch().

void nfd::pit::Entry::deleteInRecord ( const Face & face )

delete the in-record for face if it exists

Definition at line 74 of file pit-entry.cpp.

Referenced by nfd::pit::Pit::deleteInOutRecords().

void nfd::pit::Entry::clearInRecords ( )

delete all in-records

Definition at line 84 of file pit-entry.cpp.

const OutRecordCollection& nfd::pit::Entry::getOutRecords ( ) const

inline

Returns: collection of in-records

Definition at line 159 of file pit-entry.hpp.

Referenced by nfd::fw::findDuplicateNonce(), nfd::insertNonceToDnl(), ns3::ndn::L3RateTracer::SatisfiedInterests(), and ns3::ndn::L3RateTracer::TimedOutInterests().

bool nfd::pit::Entry::hasOutRecords ( ) const

inline

Return values

true	There is at least one out-record. This implies the Interest has been forwarded to some upstream, and they haven't returned Data, but may have returned Nacks.
false	There is no out-record. This implies the Interest has not been forwarded.

Definition at line 171 of file pit-entry.hpp.

OutRecordCollection::iterator nfd::pit::Entry::out_begin ( )

inline

Definition at line 177 of file pit-entry.hpp.

Referenced by nfd::fw::canForwardToLegacy(), nfd::fw::getLastOutgoing(), and nfd::fw::hasPendingOutRecords().

OutRecordCollection::const_iterator nfd::pit::Entry::out_begin ( ) const

inline

Definition at line 183 of file pit-entry.hpp.

OutRecordCollection::iterator nfd::pit::Entry::out_end ( )

inline

Definition at line 189 of file pit-entry.hpp.

Referenced by nfd::fw::canForwardToLegacy(), nfd::fw::RetxSuppressionExponential::decidePerUpstream(), nfd::fw::getLastOutgoing(), and nfd::fw::hasPendingOutRecords().

OutRecordCollection::const_iterator nfd::pit::Entry::out_end ( ) const

inline

Definition at line 195 of file pit-entry.hpp.

References Face.

OutRecordCollection::iterator nfd::pit::Entry::getOutRecord ( const Face & face )

get the out-record for face

Returns: an iterator to the out-record, or .out_end() if it does not exist

Definition at line 90 of file pit-entry.cpp.

Referenced by nfd::fw::RetxSuppressionExponential::decidePerUpstream(), and nfd::insertNonceToDnl().

OutRecordCollection::iterator nfd::pit::Entry::insertOrUpdateOutRecord	(	Face &	face,
		const Interest &	interest
	)

insert or update an out-record

Returns: an iterator to the new or updated out-record

Definition at line 97 of file pit-entry.cpp.

References canMatch().

void nfd::pit::Entry::deleteOutRecord ( const Face & face )

delete the out-record for face if it exists

Definition at line 113 of file pit-entry.cpp.

Referenced by nfd::pit::Pit::deleteInOutRecords().

Friends And Related Function Documentation

friend class name_tree::Entry

friend

Definition at line 246 of file pit-entry.hpp.

Member Data Documentation

scheduler::EventId nfd::pit::Entry::m_unsatisfyTimer

unsatisfy timer

This timer is used in forwarding pipelines to delete the entry when it expires without being satisfied. It fires when the last InterestLifetime among in-records expires.

Either this or the straggler timer should be set at all times, except when this entry is being processed in a pipeline.

Definition at line 227 of file pit-entry.hpp.

Referenced by nfd::compare_InRecord_expiry().

scheduler::EventId nfd::pit::Entry::m_stragglerTimer

straggler timer

This timer is used in forwarding pipelines to delete the entry when it has been satisfied and is no longer needed for measurement collection purpose.

Either this or the unsatisfy timer should be set at all times, except when this entry is being processed in a pipeline.

Definition at line 237 of file pit-entry.hpp.

Referenced by nfd::compare_InRecord_expiry().

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

ndnSIM/NFD/daemon/table/pit-entry.hpp
ndnSIM/NFD/daemon/table/pit-entry.cpp

Public Member Functions

Public Attributes

Friends

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation