ndn::autoconfig::MulticastDiscovery Class Reference

Multicast discovery stage. More...

#include <tools/ndn-autoconfig/multicast-discovery.hpp>

Inheritance diagram for ndn::autoconfig::MulticastDiscovery:

Collaboration diagram for ndn::autoconfig::MulticastDiscovery:

Public Member Functions
	MulticastDiscovery (Face &face, nfd::Controller &controller)
const std::string &	getName () const final
	Get stage name. More...
void	start ()
	Start running this stage. More...

Public Attributes
signal::Signal< Stage, std::string >	onFailure
	Signal emitted when discovery fails. More...
signal::Signal< Stage, FaceUri >	onSuccess
	Signal emitted when a HUB FaceUri is found. More...

Protected Member Functions
void	fail (const std::string &msg)
void	provideHubFaceUri (const std::string &s)
	Parse HUB FaceUri from string and declare success. More...
void	succeed (const FaceUri &hubFaceUri)

Detailed Description

Multicast discovery stage.

This stage locates an NDN gateway router, commonly known as a "hub", in the local network by sending a hub discovery Interest ndn:/localhop/ndn-autoconf/hub via multicast. This class configures routes and strategy on local NFD, so that this Interest is multicast to all multi-access faces.

If an NDN gateway router is present in the local network, it should reply with a Data containing its own FaceUri. The Data payload contains a Uri element, and the value of this element is an ASCII-encoded string of the router's FaceUri. The router may use ndn-autoconfig-server program to serve this Data.

Signature on this Data is currently not verified. This stage succeeds when the Data is successfully decoded.

Definition at line 51 of file multicast-discovery.hpp.

Constructor & Destructor Documentation

MulticastDiscovery()

ndn::autoconfig::MulticastDiscovery::MulticastDiscovery	(	Face &	face,
		nfd::Controller &	controller
	)

Definition at line 42 of file multicast-discovery.cpp.

Member Function Documentation

fail()

void ndn::autoconfig::Stage::fail ( const std::string &  msg )

protectedinherited

Definition at line 63 of file stage.cpp.

getName()

const std::string& ndn::autoconfig::MulticastDiscovery::getName ( ) const

inlinefinalvirtual

Get stage name.

Returns

stage name as a phrase, typically starting with lower case

Implements ndn::autoconfig::Stage.

Definition at line 57 of file multicast-discovery.hpp.

provideHubFaceUri()

void ndn::autoconfig::Stage::provideHubFaceUri ( const std::string &  s )

protectedinherited

Parse HUB FaceUri from string and declare success.

Definition at line 43 of file stage.cpp.

start()

void ndn::autoconfig::Stage::start ( )

inherited

Start running this stage.

Exceptions

Error

stage is already running

Definition at line 31 of file stage.cpp.

succeed()

void ndn::autoconfig::Stage::succeed ( const FaceUri &  hubFaceUri )

protectedinherited

Definition at line 55 of file stage.cpp.

Member Data Documentation

onFailure

signal::Signal<Stage, std::string> ndn::autoconfig::Stage::onFailure

inherited

Signal emitted when discovery fails.

Argument is error message.

Definition at line 92 of file stage.hpp.

onSuccess

signal::Signal<Stage, FaceUri> ndn::autoconfig::Stage::onSuccess

inherited

Signal emitted when a HUB FaceUri is found.

Argument is HUB FaceUri, may not be canonical.

Definition at line 85 of file stage.hpp.