nfd::measurements::Measurements Class Reference

The Measurements table. More...

#include <measurements.hpp>

Inheritance diagram for nfd::measurements::Measurements:

Collaboration diagram for nfd::measurements::Measurements:

Public Member Functions
	Measurements (NameTree &nameTree)
Entry &	get (const Name &name)
	Find or insert an entry by name. More...
Entry &	get (const fib::Entry &fibEntry)
	Equivalent to get(fibEntry.getPrefix()) More...
Entry &	get (const pit::Entry &pitEntry)
	Equivalent to get(pitEntry.getName(), std::min(pitEntry.getName().size(), getMaxDepth())) More...
Entry *	getParent (const Entry &child)
	Find or insert a parent entry. More...
Entry *	findLongestPrefixMatch (const Name &name, const EntryPredicate &pred=AnyEntry()) const
	Perform a longest prefix match for name. More...
Entry *	findLongestPrefixMatch (const pit::Entry &pitEntry, const EntryPredicate &pred=AnyEntry()) const
	Perform a longest prefix match for pitEntry.getName() More...
Entry *	findExactMatch (const Name &name) const
	Perform an exact match. More...
void	extendLifetime (Entry &entry, const time::nanoseconds &lifetime)
	Extend lifetime of an entry. More...
size_t	size () const

Static Public Member Functions
static constexpr size_t	getMaxDepth ()
	maximum depth of a Measurements entry More...
static time::nanoseconds	getInitialLifetime ()

Detailed Description

The Measurements table.

The Measurements table is a data structure for forwarding strategies to store per name prefix measurements. A strategy can access this table via Strategy::getMeasurements(), and then place any object that derive from StrategyInfo type onto Measurements entries.

Definition at line 79 of file measurements.hpp.

Constructor & Destructor Documentation

Measurements()

nfd::measurements::Measurements::Measurements ( NameTree &  nameTree )

explicit

Definition at line 35 of file measurements.cpp.

Member Function Documentation

getMaxDepth()

static constexpr size_t nfd::measurements::Measurements::getMaxDepth ( )

inlinestaticconstexpr

maximum depth of a Measurements entry

Definition at line 88 of file measurements.hpp.

References nfd::name_tree::NameTree::getMaxDepth().

Referenced by get().

get() [1/3]

Entry & nfd::measurements::Measurements::get

(

const Name &

name

)

Find or insert an entry by name.

An entry name can have at most getMaxDepth() components. If name exceeds this limit, it is truncated to the first getMaxDepth() components.

Definition at line 59 of file measurements.cpp.

References getMaxDepth(), and nfd::name_tree::NameTree::lookup().

Referenced by nfd::measurements::MeasurementsAccessor::get(), get(), and getParent().

get() [2/3]

Entry & nfd::measurements::Measurements::get

(

const fib::Entry &

fibEntry

)

Equivalent to get(fibEntry.getPrefix())

Definition at line 66 of file measurements.cpp.

References get(), and nfd::name_tree::NameTree::lookup().

get() [3/3]

Entry & nfd::measurements::Measurements::get

(

const pit::Entry &

pitEntry

)

Equivalent to get(pitEntry.getName(), std::min(pitEntry.getName().size(), getMaxDepth()))

Definition at line 73 of file measurements.cpp.

References get(), and nfd::name_tree::NameTree::lookup().

getParent()

Entry * nfd::measurements::Measurements::getParent

(

const Entry &

child

)

Find or insert a parent entry.

Return values

nullptr

child is the root entry

Returns

get(child.getName().getPrefix(-1))

Definition at line 80 of file measurements.cpp.

References ndn::Name::empty(), get(), nfd::name_tree::NameTree::getEntry(), nfd::measurements::Entry::getName(), and nfd::name_tree::Entry::getParent().

Referenced by nfd::measurements::MeasurementsAccessor::getParent().

findLongestPrefixMatch() [1/2]

Entry * nfd::measurements::Measurements::findLongestPrefixMatch	(	const Name &	name,
		const EntryPredicate &	pred = AnyEntry()
	)		const

Perform a longest prefix match for name.

Definition at line 108 of file measurements.cpp.

References nfd::name_tree::NameTree::getMaxDepth().

Referenced by nfd::measurements::MeasurementsAccessor::findLongestPrefixMatch(), and findLongestPrefixMatch().

findLongestPrefixMatch() [2/2]

Entry * nfd::measurements::Measurements::findLongestPrefixMatch	(	const pit::Entry &	pitEntry,
		const EntryPredicate &	pred = AnyEntry()
	)		const

Perform a longest prefix match for pitEntry.getName()

Definition at line 114 of file measurements.cpp.

References findLongestPrefixMatch(), and nfd::pit::Entry::getName().

findExactMatch()

Entry * nfd::measurements::Measurements::findExactMatch

(

const Name &

name

)

const

Perform an exact match.

Definition at line 120 of file measurements.cpp.

References nfd::name_tree::NameTree::findExactMatch(), and nfd::name_tree::Entry::getMeasurementsEntry().

Referenced by nfd::measurements::MeasurementsAccessor::findExactMatch().

getInitialLifetime()

static time::nanoseconds nfd::measurements::Measurements::getInitialLifetime ( )

inlinestatic

Definition at line 136 of file measurements.hpp.

extendLifetime()

void nfd::measurements::Measurements::extendLifetime	(	Entry &	entry,
		const time::nanoseconds &	lifetime
	)

Extend lifetime of an entry.

The entry will be kept until at least now()+lifetime.

Definition at line 127 of file measurements.cpp.

References ndn::detail::CancelHandle::cancel(), nfd::name_tree::NameTree::getEntry(), nfd::getScheduler(), and ndn::time::steady_clock::now().

Referenced by nfd::measurements::MeasurementsAccessor::extendLifetime().

size()

size_t nfd::measurements::Measurements::size ( ) const

inline

Definition at line 149 of file measurements.hpp.

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

• ndnSIM/NFD/daemon/table/measurements.hpp
• ndnSIM/NFD/daemon/table/measurements.cpp