A node ID consists of a host ID and process ID. More...

#include <node_id.hpp>

Inherits comparable< node_id >, and comparable< node_id, invalid_node_id_t >.

Public Types
using	host_id_type = std::array< uint8_t, host_id_size >
	Represents a 160 bit hash.

Public Member Functions
	node_id (const node_id &)=default

	node_id (const invalid_node_id_t &)

node_id &	operator= (const node_id &)=default

node_id &	operator= (const invalid_node_id_t &)

	node_id (uint32_t process_id, const std::string &hash)
	Creates a node ID from `process_id` and `hash`. More...

	node_id (uint32_t process_id, const host_id_type &node_id)
	Creates a node ID from `process_id` and `hash`. More...

uint32_t	process_id () const
	Identifies the running process. More...

const host_id_type &	host_id () const
	Identifies the host system. More...

Static Public Attributes
static constexpr size_t	host_id_size = 20
	A 160 bit hash (20 bytes).

static constexpr size_t	serialized_size = host_id_size + sizeof(uint32_t)
	The size of a `node_id` in serialized form.

Related Functions
(Note that these are not member functions.)
constexpr invalid_node_id_t	invalid_node_id = invalid_node_id_t{}
	Identifies an invalid `node_id`.

std::string	to_string (const node_id &what)

Detailed Description

A node ID consists of a host ID and process ID.

The host ID identifies the physical machine in the network, whereas the process ID identifies the running system-level process on that machine.

Constructor & Destructor Documentation

Creates a node ID from process_id and hash.

Parameters

process_id	System-wide unique process identifier.
hash	Unique node id as hexadecimal string representation.

Creates a node ID from process_id and hash.

Parameters

process_id	System-wide unique process identifier.
node_id	Unique node id.

const host_id_type& caf::node_id::host_id ( ) const

Identifies the host system.

Returns: A hash build from the MAC address of the first network device and the UUID of the root partition (mounted in "/" or "C:").

uint32_t caf::node_id::process_id ( ) const

Identifies the running process.

std::string to_string ( const node_id & what )