Network::VersionMessage Class Reference

A version message. More...

#include <VersionMessage.h>

Inheritance diagram for Network::VersionMessage:

Public Member Functions
	VersionMessage::VersionMessage (uint32_t version, uint64_t services, uint64_t timestamp, Address const &to, Address const &from, uint64_t nonce, std::string const &userAgent, uint32_t height, bool relay)
	VersionMessage (uint8_t const *&in, size_t &size)
Overrides Serializable
virtual void	serialize (std::vector< uint8_t > &out) const override
virtual json	toJson () const override
Public Member Functions inherited from Network::Message
	Message (char const *type)
std::string	type () const
	Returns the type.

Public Attributes
uint32_t	version_
	Identifies protocol version being used by the node.
uint64_t	services_
	bitfield of features to be enabled for this connection
uint64_t	timestamp_
	standard UNIX timestamp in seconds
Address	to_
	The network address of the node receiving this message.
Address	from_
	The network address of the node emitting this message.
uint64_t	nonce_
	Node random nonce, randomly generated every time a version packet is sent. More...
std::string	userAgent_
	User Agent(0x00 if string is 0 bytes long)
uint32_t	height_
	The last block received by the emitting node.
bool	relay_
	Whether the remote peer should announce relayed transactions or not, see BIP 0037.

Static Public Attributes
static char const	TYPE [] = "version"
	Message type.

Detailed Description

A version message.

When a node creates an outgoing connection, it will immediately advertise its version. The remote node will respond with its version. No further communication is possible until both peers have exchanged their version.

See also

https://github.com/bitcoin/bips/blob/master/bip-0037.mediawiki

Todo:

more work to do with this class

Constructor & Destructor Documentation

VersionMessage::VersionMessage	(	uint8_t const *&	in,
		size_t &	size
	)

Parameters

[in,out]	in	pointer to the next byte to deserialize
[in,out]	size	number of bytes remaining in the serialized stream

Member Function Documentation

Network::VersionMessage::VersionMessage::VersionMessage	(	uint32_t	version,
		uint64_t	services,
		uint64_t	timestamp,
		Address const &	to,
		Address const &	from,
		uint64_t	nonce,
		std::string const &	userAgent,
		uint32_t	height,
		bool	relay
	)

Parameters

version	version
services	services
timestamp	timestamp
to	to
from	from
nonce	nonce
userAgent	userAgent
height	height
relay	relay

Member Data Documentation

uint64_t Network::VersionMessage::nonce_

Node random nonce, randomly generated every time a version packet is sent.

This nonce is used < to detect connections to self.

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

• network/Messages/VersionMessage.h
• network/Messages/VersionMessage.cpp