ndn::Name Class Reference

Represents an absolute name. More...

#include <name.hpp>

Collaboration diagram for ndn::Name:

Public Types
using	Error = name::Component::Error
using	Component = name::Component
using	component_container = std::vector< Component >
using	value_type = Component
using	allocator_type = void
using	reference = Component &
using	const_reference = const Component &
using	pointer = Component *
using	const_pointer = const Component *
using	iterator = const Component *
using	const_iterator = const Component *
using	reverse_iterator = std::reverse_iterator< iterator >
using	const_reverse_iterator = std::reverse_iterator< const_iterator >
using	difference_type = component_container::difference_type
using	size_type = component_container::size_type

Public Member Functions
	Name ()
	Create an empty name. More...
	Name (const Block &wire)
	Decode Name from wire encoding. More...
	Name (const char *uri)
	Parse name from NDN URI. More...
	Name (std::string uri)
	Create name from NDN URI. More...
std::string	toUri () const
	Get URI representation of the name. More...
bool	hasWire () const
	Check if this Name instance already has wire encoding. More...
template<encoding::Tag TAG>
size_t	wireEncode (EncodingImpl< TAG > &encoder) const
	Fast encoding or block size estimation. More...
const Block &	wireEncode () const
	Perform wire encoding, or return existing wire encoding. More...
void	wireDecode (const Block &wire)
	Decode name from wire encoding. More...
Name	deepCopy () const
	Make a deep copy of the name, reallocating the underlying memory buffer. More...
bool	empty () const
	Check if name is empty. More...
size_t	size () const
	Get number of components. More...
const Component &	get (ssize_t i) const
	Get the component at the given index. More...
const Component &	operator[] (ssize_t i) const
	Equivalent to get(i) More...
const Component &	at (ssize_t i) const
	Get the component at the given index. More...
PartialName	getSubName (ssize_t iStartComponent, size_t nComponents=npos) const
	Extract some components as a sub-name (PartialName) More...
PartialName	getPrefix (ssize_t nComponents) const
	Extract a prefix of the name. More...
const_iterator	begin () const
	Begin iterator. More...
const_iterator	end () const
	End iterator. More...
const_reverse_iterator	rbegin () const
	Reverse begin iterator. More...
const_reverse_iterator	rend () const
	Reverse end iterator. More...
Name &	append (const Component &component)
	Append a component. More...
Name &	append (uint32_t type, const uint8_t *value, size_t count)
	Append a NameComponent of TLV-TYPE type, copying count bytes at value as TLV-VALUE. More...
Name &	append (const uint8_t *value, size_t count)
	Append a GenericNameComponent, copying count bytes at value as TLV-VALUE. More...
template<class Iterator >
Name &	append (uint32_t type, Iterator first, Iterator last)
	Append a NameComponent of TLV-TYPE type, copying TLV-VALUE from a range. More...
template<class Iterator >
Name &	append (Iterator first, Iterator last)
	Append a GenericNameComponent, copying TLV-VALUE from a range. More...
Name &	append (const char *str)
	Append a GenericNameComponent, copying TLV-VALUE from a null-terminated string. More...
Name &	append (const Block &value)
	Append a GenericNameComponent from a TLV element. More...
Name &	appendNumber (uint64_t number)
	Append a component with a nonNegativeInteger. More...
Name &	appendNumberWithMarker (uint8_t marker, uint64_t number)
	Append a component with a marked number. More...
Name &	appendVersion (optional< uint64_t > version=nullopt)
	Append a version component. More...
Name &	appendSegment (uint64_t segmentNo)
	Append a segment number (sequential) component. More...
Name &	appendSegmentOffset (uint64_t offset)
	Append a segment byte offset component. More...
Name &	appendTimestamp (optional< time::system_clock::TimePoint > timestamp=nullopt)
	Append a timestamp component. More...
Name &	appendSequenceNumber (uint64_t seqNo)
	Append a sequence number component. More...
Name &	appendImplicitSha256Digest (ConstBufferPtr digest)
	Append an ImplicitSha256Digest component. More...
Name &	appendImplicitSha256Digest (const uint8_t *digest, size_t digestSize)
	Append an ImplicitSha256Digest component. More...
Name &	append (const PartialName &name)
	Append a PartialName. More...
template<class T >
void	push_back (const T &component)
	Append a component. More...
void	clear ()
	Remove all components. More...
Name	getSuccessor () const
	Get the successor of a name. More...
bool	isPrefixOf (const Name &other) const
	Check if this name is a prefix of another name. More...
bool	equals (const Name &other) const
	Check if this name equals another name. More...
int	compare (const Name &other) const
	Compare this to the other Name using NDN canonical ordering. More...
int	compare (size_t pos1, size_t count1, const Name &other, size_t pos2=0, size_t count2=npos) const
	compares [pos1, pos1+count1) components in this Name to [pos2, pos2+count2) components in other More...

Static Public Attributes
static const size_t	npos = std::numeric_limits<size_t>::max()
	indicates "until the end" in getSubName and compare More...

Detailed Description

Represents an absolute name.

Definition at line 43 of file name.hpp.

Member Typedef Documentation

Error

using ndn::Name::Error = name::Component::Error

Definition at line 46 of file name.hpp.

Component

using ndn::Name::Component = name::Component

Definition at line 48 of file name.hpp.

component_container

using ndn::Name::component_container = std::vector<Component>

Definition at line 49 of file name.hpp.

value_type

using ndn::Name::value_type = Component

Definition at line 52 of file name.hpp.

allocator_type

using ndn::Name::allocator_type = void

Definition at line 53 of file name.hpp.

reference

using ndn::Name::reference = Component&

Definition at line 54 of file name.hpp.

const_reference

using ndn::Name::const_reference = const Component&

Definition at line 55 of file name.hpp.

pointer

using ndn::Name::pointer = Component*

Definition at line 56 of file name.hpp.

const_pointer

using ndn::Name::const_pointer = const Component*

Definition at line 57 of file name.hpp.

iterator

using ndn::Name::iterator = const Component*

Definition at line 58 of file name.hpp.

const_iterator

using ndn::Name::const_iterator = const Component*

Definition at line 59 of file name.hpp.

reverse_iterator

using ndn::Name::reverse_iterator = std::reverse_iterator<iterator>

Definition at line 60 of file name.hpp.

const_reverse_iterator

using ndn::Name::const_reverse_iterator = std::reverse_iterator<const_iterator>

Definition at line 61 of file name.hpp.

difference_type

using ndn::Name::difference_type = component_container::difference_type

Definition at line 62 of file name.hpp.

size_type

using ndn::Name::size_type = component_container::size_type

Definition at line 63 of file name.hpp.

Constructor & Destructor Documentation

Name() [1/4]

ndn::Name::Name

(

)

Create an empty name.

Postcondition

empty() == true

Definition at line 54 of file name.cpp.

Referenced by getSuccessor().

Name() [2/4]

ndn::Name::Name ( const Block &  wire )

explicit

Decode Name from wire encoding.

Exceptions

tlv::Error

wire encoding is invalid

This is a more efficient equivalent for

Name name;
name.wireDecode(wire);

Definition at line 59 of file name.cpp.

References ndn::Block::parse().

Name() [3/4]

ndn::Name::Name

(

const char *

uri

)

Parse name from NDN URI.

Parameters

uri	a null-terminated URI string

See also

https://named-data.net/doc/NDN-packet-spec/current/name.html#ndn-uri-scheme

Definition at line 65 of file name.cpp.

Name() [4/4]

ndn::Name::Name

(

std::string

uri

)

Create name from NDN URI.

Parameters

uri	a URI string

See also

https://named-data.net/doc/NDN-packet-spec/current/name.html#ndn-uri-scheme

Definition at line 70 of file name.cpp.

References append(), and ndn::name::Component::fromEscapedString().

Member Function Documentation

toUri()

std::string ndn::Name::toUri

(

)

const

Get URI representation of the name.

Returns

URI representation; "ndn:" scheme identifier is not included

See also

https://named-data.net/doc/NDN-packet-spec/current/name.html#ndn-uri-scheme

Note

To print URI representation into a stream, it is more efficient to use os << name.

Definition at line 116 of file name.cpp.

Referenced by ndn::security::pib::CertificateContainer::add(), ndn::security::pib::KeyContainer::add(), ndn::security::v2::KeyChain::addCertificate(), ndn::security::v2::ValidationPolicySimpleHierarchy::checkPolicy(), ndn::security::v2::validator_config::ValidationPolicyConfig::checkPolicy(), ndn::security::tpm::BackEnd::createKey(), ndn::security::v2::KeyChain::deleteCertificate(), ndn::security::v2::KeyChain::deleteKey(), ndn::security::tpm::BackEnd::exportKey(), ndn::security::v2::KeyChain::exportSafeBag(), ndn::security::v2::extractIdentityFromCertName(), ndn::security::v2::extractIdentityFromKeyName(), ndn::security::v2::extractKeyNameFromCertName(), ndn::security::pib::CertificateContainer::get(), ndn::security::pib::KeyContainer::get(), ndn::security::pib::PibMemory::getCertificate(), ndn::security::pib::PibSqlite3::getCertificate(), ndn::security::pib::PibMemory::getDefaultCertificateOfKey(), ndn::security::pib::PibSqlite3::getDefaultCertificateOfKey(), ndn::security::pib::PibMemory::getDefaultKeyOfIdentity(), ndn::security::pib::PibSqlite3::getDefaultKeyOfIdentity(), ndn::security::pib::PibMemory::getKeyBits(), ndn::security::pib::PibSqlite3::getKeyBits(), ndn::security::tpm::getKeyRef(), ndn::security::pib::detail::IdentityImpl::IdentityImpl(), ndn::security::tpm::BackEnd::importKey(), ndn::security::v2::KeyChain::importSafeBag(), ndn::MetadataObject::makeData(), ndn::MetadataObject::MetadataObject(), ndn::security::pib::CertificateContainer::remove(), ndn::security::pib::KeyContainer::remove(), ndn::security::pib::PibMemory::setDefaultCertificateOfKey(), ndn::security::pib::PibSqlite3::setDefaultCertificateOfKey(), ndn::security::v2::KeyChain::setDefaultKey(), ndn::security::pib::PibMemory::setDefaultKeyOfIdentity(), and ndn::security::pib::PibSqlite3::setDefaultKeyOfIdentity().

hasWire()

bool ndn::Name::hasWire ( ) const

inline

Check if this Name instance already has wire encoding.

Definition at line 106 of file name.hpp.

References ndn::Block::hasWire().

wireEncode() [1/2]

template<encoding::Tag TAG>

size_t ndn::Name::wireEncode

(

EncodingImpl< TAG > &

encoder

)

const

Fast encoding or block size estimation.

Definition at line 125 of file name.cpp.

References ndn::tlv::Name.

Referenced by ndn::security::pib::PibSqlite3::addCertificate(), ndn::security::pib::PibSqlite3::addIdentity(), ndn::security::pib::PibSqlite3::addKey(), deepCopy(), ndn::security::pib::PibSqlite3::getCertificate(), ndn::security::pib::PibSqlite3::getCertificatesOfKey(), ndn::security::pib::PibSqlite3::getDefaultCertificateOfKey(), ndn::security::pib::PibSqlite3::getDefaultKeyOfIdentity(), ndn::security::pib::PibSqlite3::getKeyBits(), ndn::security::pib::PibSqlite3::getKeysOfIdentity(), ndn::security::pib::PibSqlite3::hasCertificate(), ndn::security::pib::PibSqlite3::hasIdentity(), ndn::security::pib::PibSqlite3::hasKey(), ndn::MetadataObject::makeData(), ndn::security::parse(), ndn::security::pib::PibSqlite3::removeCertificate(), ndn::security::pib::PibSqlite3::removeIdentity(), ndn::security::pib::PibSqlite3::removeKey(), ndn::security::pib::PibSqlite3::setDefaultCertificateOfKey(), ndn::security::pib::PibSqlite3::setDefaultIdentity(), ndn::security::pib::PibSqlite3::setDefaultKeyOfIdentity(), ndn::security::v2::KeyChain::sign(), ndn::security::tpm::BackEndFile::Impl::toFileName(), ndn::nfd::StrategyChoice::wireEncode(), ndn::Data::wireEncode(), ndn::KeyLocator::wireEncode(), ndn::nfd::ControlParameters::wireEncode(), ndn::nfd::FibEntry::wireEncode(), and ndn::nfd::RibEntry::wireEncode().

wireEncode() [2/2]

const Block & ndn::Name::wireEncode

(

)

const

Perform wire encoding, or return existing wire encoding.

Postcondition

hasWire() == true

Definition at line 140 of file name.cpp.

References ndn::Block::hasWire(), and ndn::Block::parse().

wireDecode()

void ndn::Name::wireDecode

(

const Block &

wire

)

Decode name from wire encoding.

Exceptions

tlv::Error

wire encoding is invalid

Postcondition

hasWire() == true

Definition at line 158 of file name.cpp.

References ndn::tlv::Name, ndn::Block::parse(), and ndn::Block::type().

Referenced by ndn::MetadataObject::MetadataObject(), ndn::nfd::StrategyChoice::wireDecode(), ndn::KeyLocator::wireDecode(), ndn::Data::wireDecode(), ndn::nfd::ControlParameters::wireDecode(), ndn::nfd::FibEntry::wireDecode(), and ndn::nfd::RibEntry::wireDecode().

deepCopy()

Name ndn::Name::deepCopy

(

)

const

Make a deep copy of the name, reallocating the underlying memory buffer.

Definition at line 168 of file name.cpp.

References ndn::Block::resetWire(), and wireEncode().

empty()

bool ndn::Name::empty ( ) const

inline

Check if name is empty.

Definition at line 139 of file name.hpp.

References ndn::Block::elements().

Referenced by nfd::cs::compareQueryWithData(), ndn::security::v2::CertificateBundleFetcher::doFetch(), ndn::Data::getFullName(), nfd::measurements::Measurements::getParent(), getSuccessor(), nfd::name_tree::NameTree::lookup(), ndn::MetadataObject::makeData(), and ndn::InMemoryStorage::selectChild().

size()

size_t ndn::Name::size ( ) const

inline

Get number of components.

Definition at line 147 of file name.hpp.

References ndn::Block::elements_size().

Referenced by at(), ndn::security::v2::validator_config::Checker::check(), ndn::security::v2::validator_config::checkNameRelation(), compare(), nfd::cs::compareQueryWithData(), ndn::InterestFilter::doesMatch(), equals(), nfd::cs::Cs::erase(), nfd::strategy_choice::StrategyChoice::erase(), ndn::RegexTopMatcher::expand(), ndn::security::v2::CertificateCache::find(), nfd::cs::Cs::find(), nfd::name_tree::NameTree::findLongestPrefixMatch(), nfd::rib::Rib::findParent(), get(), nfd::fw::asf::AsfMeasurements::getOrCreateNamespaceInfo(), getPrefix(), getSubName(), nfd::strategy_choice::StrategyChoice::insert(), isPrefixOf(), ndn::security::v2::isValidKeyName(), ndn::security::v2::Certificate::isValidName(), nfd::CommandAuthenticator::makeAuthorization(), ndn::security::v2::validator_config::Filter::match(), ndn::Interest::matchesData(), ndn::Interest::matchesName(), ndn::nfd::operator==(), ndn::security::parse(), nfd::fw::Strategy::parseInstanceName(), ndn::PrefixAnnouncement::PrefixAnnouncement(), ndn::InMemoryStorage::selectChild(), and ndn::nfd::StrategyChoiceUnsetCommand::validateRequest().

get()

const Component& ndn::Name::get ( ssize_t  i ) const

inline

Get the component at the given index.

Parameters

i	zero-based index; if negative, it starts at the end of this name

Warning

Indexing out of bounds triggers undefined behavior.

Definition at line 157 of file name.hpp.

References ndn::Block::elements(), and size().

Referenced by compare(), ndn::security::v2::CertificateBundleFetcher::doFetch(), equals(), getSuccessor(), isPrefixOf(), ndn::security::v2::isValidKeyName(), ndn::security::v2::Certificate::isValidName(), ndn::Interest::matchesData(), and operator[]().

operator[]()

const Component& ndn::Name::operator[] ( ssize_t  i ) const

inline

Equivalent to get(i)

Definition at line 168 of file name.hpp.

References get().

at()

const name::Component & ndn::Name::at

(

ssize_t

i

)

const

Get the component at the given index.

Parameters

i	zero-based index; if negative, size()+i is used instead

Exceptions

Name::Error

index is out of bounds

Definition at line 179 of file name.cpp.

References ndn::Block::elements(), and size().

Referenced by nfd::ManagerBase::extractRequester(), ndn::security::v2::Certificate::getIssuerId(), ndn::security::v2::Certificate::getKeyId(), getSubName(), and nfd::fw::Strategy::makeInstanceName().

getSubName()

PartialName ndn::Name::getSubName	(	ssize_t	iStartComponent,
		size_t	nComponents = npos
	)		const

Extract some components as a sub-name (PartialName)

Parameters

iStartComponent	zero-based index of the first component; if negative, size()+iStartComponent is used instead
nComponents	Number of components starting at iStartComponent. Use npos to get the PartialName until the end of this Name.

Returns

a new PartialName containing the extracted components

If iStartComponent is positive and indexes out of bounds, returns an empty PartialName. If iStartComponent is negative and indexes out of bounds, returns components starting from the beginning of the Name. If nComponents is out of bounds, returns the components until the end of this Name.

Definition at line 193 of file name.cpp.

References append(), at(), npos, and size().

Referenced by getPrefix(), and nfd::fw::Strategy::parseInstanceName().

getPrefix()

PartialName ndn::Name::getPrefix ( ssize_t  nComponents ) const

inline

Extract a prefix of the name.

Parameters

nComponents

Number of components; if negative, size()+nComponents is used instead

Returns

a new Name containing the prefix the prefix up to name.size() - N. For example getPrefix(-1) returns the name without the final component.

A new partial name

Definition at line 203 of file name.hpp.

References getSubName(), and size().

Referenced by ndn::security::v2::validator_config::Checker::check(), ndn::security::v2::ValidationPolicySimpleHierarchy::checkPolicy(), nfd::strategy_choice::StrategyChoice::erase(), ndn::security::v2::extractIdentityFromCertName(), ndn::security::v2::extractIdentityFromKeyName(), ndn::security::v2::extractKeyNameFromCertName(), nfd::rib::Rib::findParent(), ndn::security::v2::Certificate::getIdentity(), ndn::security::v2::Certificate::getKeyName(), nfd::fw::asf::AsfMeasurements::getOrCreateNamespaceInfo(), getSuccessor(), nfd::rib::HostToGatewayReadvertisePolicy::handleNewRoute(), ndn::security::v2::validator_config::Filter::match(), nfd::fw::Strategy::parseInstanceName(), ndn::PrefixAnnouncement::PrefixAnnouncement(), ndn::InMemoryStorage::selectChild(), and nfd::name_tree::Entry::setParent().

begin()

const_iterator ndn::Name::begin ( ) const

inline

Begin iterator.

Definition at line 215 of file name.hpp.

References ndn::Block::elements().

Referenced by rend().

end()

const_iterator ndn::Name::end ( ) const

inline

End iterator.

Definition at line 223 of file name.hpp.

References ndn::Block::elements().

Referenced by rbegin().

rbegin()

const_reverse_iterator ndn::Name::rbegin ( ) const

inline

Reverse begin iterator.

Definition at line 231 of file name.hpp.

References end().

Referenced by nfd::fw::Strategy::makeInstanceName().

rend()

const_reverse_iterator ndn::Name::rend ( ) const

inline

Reverse end iterator.

Definition at line 239 of file name.hpp.

References begin().

Referenced by nfd::fw::Strategy::makeInstanceName().

append() [1/8]

Name& ndn::Name::append ( const Component &  component )

inline

Append a component.

Returns

a reference to this name, to allow chaining.

Definition at line 249 of file name.hpp.

References ndn::Block::push_back().

Referenced by append(), appendImplicitSha256Digest(), appendNumber(), appendNumberWithMarker(), appendSegment(), appendSegmentOffset(), appendSequenceNumber(), appendTimestamp(), appendVersion(), ndn::security::v2::constructKeyName(), ndn::RegexTopMatcher::expand(), getSubName(), getSuccessor(), Name(), push_back(), ndn::security::v2::KeyChain::sign(), and ndn::PrefixAnnouncement::toData().

append() [2/8]

Name& ndn::Name::append ( uint32_t  type, const uint8_t *  value, size_t  count  )

inline

Append a NameComponent of TLV-TYPE type, copying count bytes at value as TLV-VALUE.

Returns

a reference to this name, to allow chaining.

Definition at line 260 of file name.hpp.

References append().

append() [3/8]

Name& ndn::Name::append ( const uint8_t *  value, size_t  count  )

inline

Append a GenericNameComponent, copying count bytes at value as TLV-VALUE.

Returns

a reference to this name, to allow chaining.

Definition at line 269 of file name.hpp.

References append().

append() [4/8]

template<class Iterator >

Name& ndn::Name::append ( uint32_t  type, Iterator  first, Iterator  last  )

inline

Append a NameComponent of TLV-TYPE type, copying TLV-VALUE from a range.

Template Parameters

Iterator

an InputIterator dereferencing to a one-octet value type. More efficient implementation is available when it is a RandomAccessIterator.

Parameters

type	the TLV-TYPE.
first	beginning of the range.
last	past-end of the range.

Returns

a reference to this name, to allow chaining.

Definition at line 284 of file name.hpp.

References append().

append() [5/8]

template<class Iterator >

Name& ndn::Name::append ( Iterator  first, Iterator  last  )

inline

Append a GenericNameComponent, copying TLV-VALUE from a range.

Template Parameters

Iterator

an InputIterator dereferencing to a one-octet value type. More efficient implementation is available when it is a RandomAccessIterator.

Parameters

first	beginning of the range.
last	past-end of the range.

Returns

a reference to this name, to allow chaining.

Definition at line 298 of file name.hpp.

References append().

append() [6/8]

Name& ndn::Name::append ( const char *  str )

inline

Append a GenericNameComponent, copying TLV-VALUE from a null-terminated string.

Parameters

str	a null-terminated string. Bytes from the string are copied as is, and not interpreted as URI component.

Returns

a reference to this name, to allow chaining.

Definition at line 309 of file name.hpp.

References append().

append() [7/8]

Name& ndn::Name::append ( const Block &  value )

inline

Append a GenericNameComponent from a TLV element.

Parameters

value

a TLV element. If its type is tlv::GenericNameComponent, it is used as is. Otherwise, it is encapsulated into a GenericNameComponent.

Returns

a reference to this name, to allow chaining.

Definition at line 320 of file name.hpp.

References ndn::tlv::GenericNameComponent, ndn::Block::push_back(), and ndn::Block::type().

appendNumber()

Name& ndn::Name::appendNumber ( uint64_t  number )

inline

Append a component with a nonNegativeInteger.

See also

number the number

Returns

a reference to this name, to allow chaining

See also

https://named-data.net/doc/NDN-packet-spec/current/tlv.html#non-negative-integer-encoding

Definition at line 337 of file name.hpp.

References append(), and ndn::name::Component::fromNumber().

appendNumberWithMarker()

Name& ndn::Name::appendNumberWithMarker ( uint8_t  marker, uint64_t  number  )

inline

Append a component with a marked number.

Parameters

marker	1-octet marker
number	the number

The component is encoded as a 1-octet marker, followed by a nonNegativeInteger.

Returns

a reference to this name, to allow chaining

See also

NDN Naming Conventions https://named-data.net/doc/tech-memos/naming-conventions.pdf

Definition at line 352 of file name.hpp.

References append(), and ndn::name::Component::fromNumberWithMarker().

appendVersion()

Name & ndn::Name::appendVersion

(

optional< uint64_t >

version = nullopt

)

Append a version component.

Parameters

version

the version number to append; if nullopt, the current UNIX time in milliseconds is used

Returns

a reference to this name, to allow chaining

See also

NDN Naming Conventions https://named-data.net/doc/tech-memos/naming-conventions.pdf

Definition at line 214 of file name.cpp.

References append(), ndn::name::Component::fromVersion(), ndn::time::system_clock::now(), and ndn::time::toUnixTimestamp().

Referenced by ndn::MetadataObject::makeData(), ndn::mgmt::StatusDatasetContext::setPrefix(), and ndn::PrefixAnnouncement::toData().

appendSegment()

Name& ndn::Name::appendSegment ( uint64_t  segmentNo )

inline

Append a segment number (sequential) component.

Returns

a reference to this name, to allow chaining

See also

NDN Naming Conventions https://named-data.net/doc/tech-memos/naming-conventions.pdf

Definition at line 371 of file name.hpp.

References append(), and ndn::name::Component::fromSegment().

Referenced by ndn::MetadataObject::makeData(), and ndn::PrefixAnnouncement::toData().

appendSegmentOffset()

Name& ndn::Name::appendSegmentOffset ( uint64_t  offset )

inline

Append a segment byte offset component.

Returns

a reference to this name, to allow chaining

See also

NDN Naming Conventions https://named-data.net/doc/tech-memos/naming-conventions.pdf

Definition at line 381 of file name.hpp.

References append(), and ndn::name::Component::fromSegmentOffset().

appendTimestamp()

Name & ndn::Name::appendTimestamp

(

optional< time::system_clock::TimePoint >

timestamp = nullopt

)

Append a timestamp component.

Parameters

timestamp

the timestamp to append; if nullopt, the current system time is used

Returns

a reference to this name, to allow chaining

See also

NDN Naming Conventions https://named-data.net/doc/tech-memos/naming-conventions.pdf

Definition at line 220 of file name.cpp.

References append(), ndn::name::Component::fromTimestamp(), and ndn::time::system_clock::now().

appendSequenceNumber()

Name& ndn::Name::appendSequenceNumber ( uint64_t  seqNo )

inline

Append a sequence number component.

Returns

a reference to this name, to allow chaining

See also

NDN Naming Conventions https://named-data.net/doc/tech-memos/naming-conventions.pdf

Definition at line 399 of file name.hpp.

References append(), and ndn::name::Component::fromSequenceNumber().

Referenced by ndn::util::NotificationStream< Notification >::postNotification().

appendImplicitSha256Digest() [1/2]

Name& ndn::Name::appendImplicitSha256Digest ( ConstBufferPtr  digest )

inline

Append an ImplicitSha256Digest component.

Returns

a reference to this name, to allow chaining

Definition at line 408 of file name.hpp.

References append(), and ndn::name::Component::fromImplicitSha256Digest().

Referenced by ndn::Data::getFullName().

appendImplicitSha256Digest() [2/2]

Name& ndn::Name::appendImplicitSha256Digest ( const uint8_t *  digest, size_t  digestSize  )

inline

Append an ImplicitSha256Digest component.

Returns

a reference to this name, to allow chaining

Definition at line 417 of file name.hpp.

References append(), and ndn::name::Component::fromImplicitSha256Digest().

append() [8/8]

Name & ndn::Name::append

(

const PartialName &

name

)

Append a PartialName.

Parameters

name	the components to append

Returns

a reference to this name, to allow chaining

Definition at line 226 of file name.cpp.

References append().

push_back()

template<class T >

void ndn::Name::push_back ( const T &  component )

inline

Append a component.

Note

This makes push_back an alias of append, giving Name a similar API as STL vector.

Definition at line 434 of file name.hpp.

References append().

clear()

void ndn::Name::clear ( )

inline

Remove all components.

Postcondition

empty() == true

Definition at line 443 of file name.hpp.

References ndn::tlv::Name.

Referenced by ndn::KeyLocator::clear(), ndn::security::pib::PibMemory::clearIdentities(), ndn::security::pib::PibMemory::removeIdentity(), ndn::Data::resetWire(), ndn::security::SigningInfo::setSha256Signing(), and ndn::Data::wireDecode().

getSuccessor()

Name ndn::Name::getSuccessor

(

)

const

Get the successor of a name.

The successor of a name is defined as follows:

N represents the set of NDN Names, and X,Y ∈ N.
Operator < is defined by canonical order on N.
Y is the successor of X, if (a) X < Y, and (b) ∄ Z ∈ N s.t. X < Z < Y.

In plain words, successor of a name is the same name, but with its last component advanced to a next possible value.

Examples:

• successor of / is /sha256digest=0000000000000000000000000000000000000000000000000000000000000000.
• successor of /sha256digest=0000000000000000000000000000000000000000000000000000000000000000 is /sha256digest=0000000000000000000000000000000000000000000000000000000000000001.
• successor of /sha256digest=ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff is /2=....
• successor of /P/A is /P/B.
• successor of /Q/FF is /Q/%00%00.

Returns

a new Name containing the successor

Definition at line 241 of file name.cpp.

References append(), empty(), get(), getPrefix(), and Name().

Referenced by nfd::cs::Cs::erase(), and nfd::cs::Cs::find().

isPrefixOf()

bool ndn::Name::isPrefixOf

(

const Name &

other

)

const

Check if this name is a prefix of another name.

This name is a prefix of other if the N components of this name are same as the first N components of other.

Return values

true	this name is a prefix of other
false	this name is not a prefix of other

Definition at line 251 of file name.cpp.

References get(), and size().

Referenced by ndn::mgmt::Dispatcher::addTopPrefix(), ndn::security::v2::validator_config::checkNameRelation(), ndn::security::v2::ValidationPolicySimpleHierarchy::checkPolicy(), ndn::InterestFilter::doesMatch(), ndn::InMemoryStorage::erase(), ndn::security::v2::CertificateCache::find(), ndn::security::v2::TrustAnchorContainer::find(), nfd::rib::Rib::findDescendants(), nfd::rib::Rib::findDescendantsForNonInsertedName(), ndn::Interest::matchesData(), ndn::Interest::matchesName(), ndn::InMemoryStorage::selectChild(), and ndn::mgmt::StatusDatasetContext::setPrefix().

equals()

bool ndn::Name::equals

(

const Name &

other

)

const

Check if this name equals another name.

Two names are equal if they have the same number of components, and components at each index are equal.

Definition at line 267 of file name.cpp.

References get(), and size().

Referenced by ndn::operator!=(), and ndn::operator==().

compare() [1/2]

int ndn::Name::compare ( const Name &  other ) const

inline

Compare this to the other Name using NDN canonical ordering.

If the first components of each name are not equal, this returns a negative value if the first comes before the second using the NDN canonical ordering for name components, or a positive value if it comes after. If they are equal, this compares the second components of each name, etc. If both names are the same up to the size of the shorter name, this returns a negative value if the first name is shorter than the second or a positive value if it is longer. For example, if you std::sort gives: /a/b/d /a/b/cc /c /c/a /bb . This is intuitive because all names with the prefix /a are next to each other. But it may be also be counter-intuitive because /c comes before /bb according to NDN canonical ordering since it is shorter.

Parameters

other

The other Name to compare with.

Return values

negative	this comes before other in canonical ordering
zero	this equals other
positive	this comes after other in canonical ordering

See also

https://named-data.net/doc/NDN-packet-spec/current/name.html#canonical-order

Definition at line 517 of file name.hpp.

References npos.

Referenced by nfd::cs::compareDataWithData(), nfd::cs::compareQueryWithData(), ndn::operator<(), ndn::operator<=(), ndn::operator>(), and ndn::operator>=().

compare() [2/2]

int ndn::Name::compare	(	size_t	pos1,
		size_t	count1,
		const Name &	other,
		size_t	pos2 = 0,
		size_t	count2 = npos
	)		const

compares [pos1, pos1+count1) components in this Name to [pos2, pos2+count2) components in other

This is equivalent to this->getSubName(pos1, count1).compare(other.getSubName(pos2, count2));

Definition at line 281 of file name.cpp.

References ndn::name::Component::compare(), get(), and size().

Member Data Documentation

npos

const size_t ndn::Name::npos = std::numeric_limits<size_t>::max()

static

indicates "until the end" in getSubName and compare

Definition at line 534 of file name.hpp.

Referenced by nfd::pit::Entry::canMatch(), compare(), and getSubName().

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

• ndnSIM/ndn-cxx/ndn-cxx/name.hpp
• ndnSIM/ndn-cxx/ndn-cxx/name.cpp