nfd::measurements::Measurements Class Reference

the Measurements table More...

#include <daemon/table/measurements.hpp>

+ Inheritance diagram for nfd::measurements::Measurements:
+ Collaboration diagram for nfd::measurements::Measurements:

Public Member Functions

 Measurements (NameTree &nameTree)
 
void extendLifetime (Entry &entry, const time::nanoseconds &lifetime)
 extend lifetime of an entry More...
 
EntryfindExactMatch (const Name &name) const
 perform an exact match More...
 
EntryfindLongestPrefixMatch (const Name &name, const EntryPredicate &pred=AnyEntry()) const
 perform a longest prefix match for name More...
 
EntryfindLongestPrefixMatch (const pit::Entry &pitEntry, const EntryPredicate &pred=AnyEntry()) const
 perform a longest prefix match for pitEntry.getName() More...
 
Entryget (const Name &name)
 find or insert an entry by name More...
 
Entryget (const fib::Entry &fibEntry)
 equivalent to get(fibEntry.getPrefix()) More...
 
Entryget (const pit::Entry &pitEntry)
 equivalent to get(pitEntry.getName(), std::min(pitEntry.getName().size(), getMaxDepth())) More...
 
EntrygetParent (const Entry &child)
 find or insert a parent entry More...
 
size_t size () const
 

Static Public Member Functions

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

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

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

Definition at line 34 of file measurements.cpp.

Member Function Documentation

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.

Entry * nfd::measurements::Measurements::findExactMatch ( const Name &  name) const

perform an exact match

Definition at line 120 of file measurements.cpp.

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.

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.

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.

Entry & nfd::measurements::Measurements::get ( const fib::Entry fibEntry)

equivalent to get(fibEntry.getPrefix())

Definition at line 66 of file measurements.cpp.

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.

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

Definition at line 168 of file measurements.hpp.

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

maximum depth of a Measurements entry

Definition at line 88 of file measurements.hpp.

Entry * nfd::measurements::Measurements::getParent ( const Entry child)

find or insert a parent entry

Return values
nullptrchild is the root entry
Returns
get(child.getName().getPrefix(-1))

Definition at line 80 of file measurements.cpp.

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

Definition at line 174 of file measurements.hpp.