ndn::encoding Namespace Reference

Namespaces
	detail

Classes
class	Encoder
	Helper class to perform TLV encoding Interface of this class (mostly) matches interface of Estimator class. More...
class	EncodingImpl
class	EncodingImpl< EncoderTag >
	EncodingImpl specialization for actual TLV encoding. More...
class	EncodingImpl< EstimatorTag >
	EncodingImpl specialization for TLV size estimation. More...
class	Estimator
	Helper class to estimate size of TLV encoding Interface of this class (mostly) matches interface of Encoder class. More...

Typedefs
using	EncodingBuffer = EncodingImpl< EncoderTag >
using	EncodingEstimator = EncodingImpl< EstimatorTag >

Enumerations
enum	Tag { EncoderTag = true, EstimatorTag = false }

Functions
template<Tag TAG>
size_t	prependNonNegativeIntegerBlock (EncodingImpl< TAG > &encoder, uint32_t type, uint64_t value)
	Prepend a TLV element containing a non-negative integer. More...
template size_t	prependNonNegativeIntegerBlock< EstimatorTag > (EncodingImpl< EstimatorTag > &, uint32_t, uint64_t)
template size_t	prependNonNegativeIntegerBlock< EncoderTag > (EncodingImpl< EncoderTag > &, uint32_t, uint64_t)
Block	makeNonNegativeIntegerBlock (uint32_t type, uint64_t value)
	Create a TLV block containing a non-negative integer. More...
uint64_t	readNonNegativeInteger (const Block &block)
	Read a non-negative integer from a TLV element. More...
template<Tag TAG>
size_t	prependEmptyBlock (EncodingImpl< TAG > &encoder, uint32_t type)
	Prepend an empty TLV element. More...
template size_t	prependEmptyBlock< EstimatorTag > (EncodingImpl< EstimatorTag > &, uint32_t)
template size_t	prependEmptyBlock< EncoderTag > (EncodingImpl< EncoderTag > &, uint32_t)
Block	makeEmptyBlock (uint32_t type)
	Create an empty TLV block. More...
template<Tag TAG>
size_t	prependStringBlock (EncodingImpl< TAG > &encoder, uint32_t type, const std::string &value)
	Prepend a TLV element containing a string. More...
template size_t	prependStringBlock< EstimatorTag > (EncodingImpl< EstimatorTag > &, uint32_t, const std::string &)
template size_t	prependStringBlock< EncoderTag > (EncodingImpl< EncoderTag > &, uint32_t, const std::string &)
Block	makeStringBlock (uint32_t type, const std::string &value)
	Create a TLV block containing a string. More...
std::string	readString (const Block &block)
	Read TLV-VALUE of a TLV element as a string. More...
Block	makeBinaryBlock (uint32_t type, const uint8_t *value, size_t length)
	Create a TLV block copying TLV-VALUE from raw buffer. More...
Block	makeBinaryBlock (uint32_t type, const char *value, size_t length)
	Create a TLV block copying TLV-VALUE from raw buffer. More...
template<typename R >
std::enable_if< std::is_integral< R >::value, R >::type	readNonNegativeIntegerAs (const Block &block)
	Read a non-negative integer from a TLV element and cast to the specified type. More...
template<typename R >
std::enable_if< std::is_enum< R >::value, R >::type	readNonNegativeIntegerAs (const Block &block)
	Read a non-negative integer from a TLV element and cast to the specified type. More...
template<class Iterator >
Block	makeBinaryBlock (uint32_t type, Iterator first, Iterator last)
	Create a TLV block copying TLV-VALUE from iterators. More...
template<Tag TAG, class U >
size_t	prependNestedBlock (EncodingImpl< TAG > &encoder, uint32_t type, const U &value)
	Prepend a TLV element containing a nested TLV element. More...
template<class U >
Block	makeNestedBlock (uint32_t type, const U &value)
	Create a TLV block containing a nested TLV element. More...

Typedef Documentation

EncodingBuffer

using ndn::encoding::EncodingBuffer = typedef EncodingImpl<EncoderTag>

Definition at line 38 of file encoding-buffer-fwd.hpp.

EncodingEstimator

using ndn::encoding::EncodingEstimator = typedef EncodingImpl<EstimatorTag>

Definition at line 39 of file encoding-buffer-fwd.hpp.

Enumeration Type Documentation

Tag

enum ndn::encoding::Tag

Enumerator
EncoderTag	Tag for EncodingImpl to indicate that Encoder is requested.
EstimatorTag	Tag for EncodingImpl to indicate that Estimator is requested.

Definition at line 30 of file encoding-buffer-fwd.hpp.

Function Documentation

prependNonNegativeIntegerBlock()

template<Tag TAG>

size_t ndn::encoding::prependNonNegativeIntegerBlock	(	EncodingImpl< TAG > &	encoder,
		uint32_t	type,
		uint64_t	value
	)

Prepend a TLV element containing a non-negative integer.

Parameters

encoder	an EncodingBuffer or EncodingEstimator
type	TLV-TYPE number
value	non-negative integer value

See also

makeNonNegativeIntegerBlock, readNonNegativeInteger

Definition at line 31 of file block-helpers.cpp.

Referenced by ndn::lp::EncodeHelper< TAG, TlvType, uint64_t >::encode(), makeNonNegativeIntegerBlock(), ndn::nfd::FaceEventNotification::wireEncode(), ndn::nfd::FaceStatus::wireEncode(), ndn::nfd::CsInfo::wireEncode(), ndn::nfd::FaceQueryFilter::wireEncode(), ndn::nfd::ForwarderStatus::wireEncode(), ndn::Selectors::wireEncode(), ndn::lp::NackHeader::wireEncode(), ndn::SignatureInfo::wireEncode(), ndn::nfd::NextHopRecord::wireEncode(), ndn::lp::CachePolicy::wireEncode(), ndn::DelegationList::wireEncode(), ndn::Interest::wireEncode(), ndn::MetaInfo::wireEncode(), ndn::nfd::ControlParameters::wireEncode(), and ndn::nfd::Route::wireEncode().

prependNonNegativeIntegerBlock< EstimatorTag >()

template size_t ndn::encoding::prependNonNegativeIntegerBlock< EstimatorTag >	(	EncodingImpl< EstimatorTag > &	,
		uint32_t	,
		uint64_t
	)

prependNonNegativeIntegerBlock< EncoderTag >()

template size_t ndn::encoding::prependNonNegativeIntegerBlock< EncoderTag >	(	EncodingImpl< EncoderTag > &	,
		uint32_t	,
		uint64_t
	)

makeNonNegativeIntegerBlock()

Block ndn::encoding::makeNonNegativeIntegerBlock	(	uint32_t	type,
		uint64_t	value
	)

Create a TLV block containing a non-negative integer.

Parameters

type	TLV-TYPE number
value	non-negative integer value

See also

prependNonNegativeIntegerBlock, readNonNegativeInteger

Definition at line 48 of file block-helpers.cpp.

References ndn::encoding::Encoder::block(), and prependNonNegativeIntegerBlock().

Referenced by ndn::name::Component::fromNumber(), ns3::ndn::Producer::OnInterest(), and ndn::mgmt::ControlResponse::wireEncode().

readNonNegativeInteger()

uint64_t ndn::encoding::readNonNegativeInteger

(

const Block &

block

)

Read a non-negative integer from a TLV element.

Parameters

block

the TLV element

Exceptions

tlv::Error

block does not contain a non-negative integer

See also

prependNonNegativeIntegerBlock, makeNonNegativeIntegerBlock

Definition at line 60 of file block-helpers.cpp.

References ndn::tlv::readNonNegativeInteger(), ndn::Block::value_begin(), ndn::Block::value_end(), and ndn::Block::value_size().

Referenced by ndn::lp::DecodeHelper< TlvType, uint64_t >::decode(), readNonNegativeIntegerAs(), ndn::name::Component::toNumber(), ndn::nfd::FaceEventNotification::wireDecode(), ndn::nfd::FaceStatus::wireDecode(), ndn::nfd::CsInfo::wireDecode(), ndn::nfd::FaceQueryFilter::wireDecode(), ndn::nfd::ForwarderStatus::wireDecode(), ndn::lp::NackHeader::wireDecode(), ndn::nfd::NextHopRecord::wireDecode(), ndn::DelegationList::wireDecode(), ndn::lp::CachePolicy::wireDecode(), ndn::Interest::wireDecode(), ndn::MetaInfo::wireDecode(), ndn::nfd::ControlParameters::wireDecode(), and ndn::nfd::Route::wireDecode().

prependEmptyBlock()

template<Tag TAG>

size_t ndn::encoding::prependEmptyBlock	(	EncodingImpl< TAG > &	encoder,
		uint32_t	type
	)

Prepend an empty TLV element.

Parameters

encoder	an EncodingBuffer or EncodingEstimator
type	TLV-TYPE number

The TLV element has zero-length TLV-VALUE.

See also

makeEmptyBlock

Definition at line 70 of file block-helpers.cpp.

Referenced by makeEmptyBlock(), ndn::Selectors::wireEncode(), and ndn::Exclude::wireEncode().

prependEmptyBlock< EstimatorTag >()

template size_t ndn::encoding::prependEmptyBlock< EstimatorTag >	(	EncodingImpl< EstimatorTag > &	,
		uint32_t
	)

prependEmptyBlock< EncoderTag >()

template size_t ndn::encoding::prependEmptyBlock< EncoderTag >	(	EncodingImpl< EncoderTag > &	,
		uint32_t
	)

makeEmptyBlock()

Block ndn::encoding::makeEmptyBlock

(

uint32_t

type

)

Create an empty TLV block.

Parameters

type	TLV-TYPE number

Returns

A TLV block with zero-length TLV-VALUE

See also

prependEmptyBlock

Definition at line 85 of file block-helpers.cpp.

References ndn::encoding::Encoder::block(), and prependEmptyBlock().

prependStringBlock()

template<Tag TAG>

size_t ndn::encoding::prependStringBlock	(	EncodingImpl< TAG > &	encoder,
		uint32_t	type,
		const std::string &	value
	)

Prepend a TLV element containing a string.

Parameters

encoder	an EncodingBuffer or EncodingEstimator
type	TLV-TYPE number
value	string value, may contain NUL octets

See also

makeStringBlock, readString

Definition at line 100 of file block-helpers.cpp.

Referenced by ndn::nfd::FaceEventNotification::wireEncode(), ndn::nfd::FaceStatus::wireEncode(), ndn::nfd::ChannelStatus::wireEncode(), ndn::nfd::FaceQueryFilter::wireEncode(), ndn::nfd::ForwarderStatus::wireEncode(), ndn::nfd::ControlParameters::wireEncode(), ndn::security::ValidityPeriod::wireEncode(), and ndn::security::v2::AdditionalDescription::wireEncode().

prependStringBlock< EstimatorTag >()

template size_t ndn::encoding::prependStringBlock< EstimatorTag >	(	EncodingImpl< EstimatorTag > &	,
		uint32_t	,
		const std::string &
	)

prependStringBlock< EncoderTag >()

template size_t ndn::encoding::prependStringBlock< EncoderTag >	(	EncodingImpl< EncoderTag > &	,
		uint32_t	,
		const std::string &
	)

makeStringBlock()

Block ndn::encoding::makeStringBlock	(	uint32_t	type,
		const std::string &	value
	)

Create a TLV block containing a string.

Parameters

type	TLV-TYPE number
value	string value, may contain NUL octets

See also

prependStringBlock, readString

Definition at line 112 of file block-helpers.cpp.

References makeBinaryBlock().

Referenced by ndn::mgmt::ControlResponse::wireEncode().

readString()

std::string ndn::encoding::readString

(

const Block &

block

)

Read TLV-VALUE of a TLV element as a string.

Parameters

block

the TLV element

Returns

a string, may contain NUL octets

See also

prependStringBlock, makeStringBlock

Definition at line 118 of file block-helpers.cpp.

References ndn::Block::value(), and ndn::Block::value_size().

Referenced by ndn::nfd::FaceEventNotification::wireDecode(), ndn::nfd::FaceStatus::wireDecode(), ndn::nfd::ChannelStatus::wireDecode(), ndn::nfd::FaceQueryFilter::wireDecode(), ndn::mgmt::ControlResponse::wireDecode(), ndn::nfd::ForwarderStatus::wireDecode(), ndn::nfd::ControlParameters::wireDecode(), ndn::security::ValidityPeriod::wireDecode(), and ndn::security::v2::AdditionalDescription::wireDecode().

makeBinaryBlock() [1/3]

Block ndn::encoding::makeBinaryBlock	(	uint32_t	type,
		const uint8_t *	value,
		size_t	length
	)

Create a TLV block copying TLV-VALUE from raw buffer.

Parameters

type	TLV-TYPE number
value	raw buffer as TLV-VALUE
length	length of value buffer

See also

Encoder::prependByteArrayBlock

Definition at line 126 of file block-helpers.cpp.

References ndn::encoding::Encoder::block(), ndn::encoding::Encoder::prependByteArrayBlock(), and ndn::encoding::Estimator::prependByteArrayBlock().

Referenced by ndn::mgmt::StatusDatasetContext::append(), ndn::mgmt::StatusDatasetContext::end(), ndn::name::Component::fromImplicitSha256Digest(), makeBinaryBlock(), makeStringBlock(), ndn::Data::setContent(), and ndn::KeyLocator::setKeyDigest().

makeBinaryBlock() [2/3]

Block ndn::encoding::makeBinaryBlock	(	uint32_t	type,
		const char *	value,
		size_t	length
	)

Create a TLV block copying TLV-VALUE from raw buffer.

Parameters

type	TLV-TYPE number
value	raw buffer as TLV-VALUE
length	length of value buffer

See also

Encoder::prependByteArrayBlock

Definition at line 138 of file block-helpers.cpp.

References makeBinaryBlock().

readNonNegativeIntegerAs() [1/2]

template<typename R >

std::enable_if<std::is_integral<R>::value, R>::type ndn::encoding::readNonNegativeIntegerAs

(

const Block &

block

)

Read a non-negative integer from a TLV element and cast to the specified type.

Template Parameters

R	result type, must be an integral type

Parameters

block

the TLV element

Exceptions

tlv::Error

block does not contain a valid non-negative integer or the number cannot be represented in R

Definition at line 72 of file block-helpers.hpp.

References readNonNegativeInteger(), ndn::to_string(), and ndn::Block::type().

readNonNegativeIntegerAs() [2/2]

template<typename R >

std::enable_if<std::is_enum<R>::value, R>::type ndn::encoding::readNonNegativeIntegerAs

(

const Block &

block

)

Read a non-negative integer from a TLV element and cast to the specified type.

Template Parameters

R	result type, must be an enumeration type

Parameters

block

the TLV element

Exceptions

tlv::Error

block does not contain a valid non-negative integer or the number cannot be represented in R

Warning

If R is an unscoped enum type, it must have a fixed underlying type. Otherwise, this function may trigger unspecified behavior.

Definition at line 92 of file block-helpers.hpp.

makeBinaryBlock() [3/3]

template<class Iterator >

Block ndn::encoding::makeBinaryBlock	(	uint32_t	type,
		Iterator	first,
		Iterator	last
	)

Create a TLV block copying TLV-VALUE from iterators.

Template Parameters

Iterator

an InputIterator dereferencable to an 1-octet type; faster implementation is available for RandomAccessIterator

Parameters

type	TLV-TYPE number
first	begin iterator
last	past-the-end iterator

Definition at line 232 of file block-helpers.hpp.

prependNestedBlock()

template<Tag TAG, class U >

size_t ndn::encoding::prependNestedBlock	(	EncodingImpl< TAG > &	encoder,
		uint32_t	type,
		const U &	value
	)

Prepend a TLV element containing a nested TLV element.

Template Parameters

U	type that satisfies WireEncodableWithEncodingBuffer concept

Parameters

encoder	an EncodingBuffer or EncodingEstimator
type	TLV-TYPE number for outer TLV element
value	an object to be encoded as inner TLV element

See also

makeNestedBlock

Definition at line 252 of file block-helpers.hpp.

Referenced by makeNestedBlock(), ndn::nfd::StrategyChoice::wireEncode(), ndn::MetaInfo::wireEncode(), and ndn::nfd::ControlParameters::wireEncode().

makeNestedBlock()

template<class U >

Block ndn::encoding::makeNestedBlock	(	uint32_t	type,
		const U &	value
	)

Create a TLV block containing a nested TLV element.

Template Parameters

U	type that satisfies WireEncodableWithEncodingBuffer concept

Parameters

type	TLV-TYPE number for outer TLV element
value	an object to be encoded as inner TLV element

See also

prependNestedBlock

Definition at line 272 of file block-helpers.hpp.

References ndn::encoding::Encoder::block(), and prependNestedBlock().