dev::p2p::FindNode Struct Reference

#include <NodeTable.h>

Collaboration diagram for dev::p2p::FindNode:

Public Member Functions
	FindNode (bi::udp::endpoint _to, h512 _target)
	FindNode (bi::udp::endpoint const &_from, NodeID const &_fromid, h256 const &_echo)
uint8_t	packetType () const override
void	streamRLP (RLPStream &_s) const override
void	interpretRLP (bytesConstRef _bytes) override
std::string	typeName () const override
Public Member Functions inherited from dev::p2p::DiscoveryDatagram
	DiscoveryDatagram (bi::udp::endpoint const &_to)
	Constructor used for sending. More...
	DiscoveryDatagram (bi::udp::endpoint const &_from, NodeID const &_fromid, h256 const &_echo)
	Constructor used for parsing inbound packets. More...
bool	isExpired () const
Public Member Functions inherited from dev::p2p::RLPXDatagramFace
	RLPXDatagramFace (bi::udp::endpoint const &_ep)
virtual	~RLPXDatagramFace ()=default
virtual h256	sign (Secret const &_from)
Public Member Functions inherited from dev::p2p::UDPDatagram
	UDPDatagram (bi::udp::endpoint _ep)
	UDPDatagram (bi::udp::endpoint _ep, bytes _data)
bi::udp::endpoint const &	endpoint () const

Public Attributes
h512	target
Public Attributes inherited from dev::p2p::DiscoveryDatagram
NodeID	sourceid
h256	echo
boost::optional< uint32_t >	expiration
Public Attributes inherited from dev::p2p::UDPDatagram
bytes	data

Static Public Attributes
static constexpr uint8_t	type = 3
Static Public Attributes inherited from dev::p2p::DiscoveryDatagram
static constexpr std::chrono::seconds	c_timeToLiveS {60}

Additional Inherited Members
Static Public Member Functions inherited from dev::p2p::DiscoveryDatagram
static std::unique_ptr< DiscoveryDatagram >	interpretUDP (bi::udp::endpoint const &_from, bytesConstRef _packet)
	Decodes UDP packets. More...
Static Public Member Functions inherited from dev::p2p::RLPXDatagramFace
static uint32_t	futureFromEpoch (std::chrono::seconds _sec)
static uint32_t	secondsSinceEpoch ()
static Public	authenticate (bytesConstRef _sig, bytesConstRef _rlp)
Protected Attributes inherited from dev::p2p::UDPDatagram
bi::udp::endpoint	locus

Detailed Description

FindNode Packet: Request k-nodes, closest to the target. FindNode is cached and regenerated after timestamp + t, where t is timeout. FindNode implicitly results in finding neighbours of a given node.

RLP Encoded Items: 2 Minimum Encoded Size: 21 bytes Maximum Encoded Size: 30 bytes

target: NodeID of node. The responding node will send back nodes closest to the target.

Constructor & Destructor Documentation

FindNode() [1/2]

dev::p2p::FindNode::FindNode ( bi::udp::endpoint  _to, h512  _target  )

inline

FindNode() [2/2]

dev::p2p::FindNode::FindNode ( bi::udp::endpoint const &  _from, NodeID const &  _fromid, h256 const &  _echo  )

inline

Member Function Documentation

interpretRLP()

void dev::p2p::FindNode::interpretRLP ( bytesConstRef  _bytes )

inlineoverridevirtual

Implements dev::p2p::RLPXDatagramFace.

packetType()

uint8_t dev::p2p::FindNode::packetType ( ) const

inlineoverridevirtual

Implements dev::p2p::RLPXDatagramFace.

streamRLP()

void dev::p2p::FindNode::streamRLP ( RLPStream &  _s ) const

inlineoverridevirtual

Implements dev::p2p::RLPXDatagramFace.

typeName()

std::string dev::p2p::FindNode::typeName ( ) const

inlineoverridevirtual

Implements dev::p2p::RLPXDatagramFace.

Member Data Documentation

target

h512 dev::p2p::FindNode::target

type

constexpr uint8_t dev::p2p::FindNode::type = 3

staticconstexpr

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The documentation for this struct was generated from the following file:

• libraries/aleth/libp2p/NodeTable.h