Struct libp2p::swarm::keep_alive::Behaviour

pub struct Behaviour;

Implementation of NetworkBehaviour that doesn’t do anything other than keep all connections alive.

This is primarily useful for test code. In can however occasionally be useful for production code too. The caveat is that open connections consume system resources and should thus be shutdown when they are not in use. Connections can also fail at any time so really, your application should be designed to establish them when necessary, making the use of this behaviour likely redundant.

Trait Implementations

impl Default for Behaviour

fn default() -> Behaviour

Returns the “default value” for a type.

impl NetworkBehaviour for Behaviour

type ConnectionHandler = ConnectionHandler

Handler for all the protocols the network behaviour supports.

type OutEvent = Void

Event generated by the NetworkBehaviour and that the swarm will report back.

fn new_handler(&mut self) -> <Behaviour as NetworkBehaviour>::ConnectionHandler

Creates a new ConnectionHandler for a connection with a peer.

fn on_connection_handler_event( &mut self, _: PeerId, _: ConnectionId, event: Void )

Informs the behaviour about an event generated by the ConnectionHandler dedicated to the peer identified by peer_id. for the behaviour.

fn poll( &mut self, _: &mut Context<'_>, _: &mut impl PollParameters ) -> Poll<NetworkBehaviourAction<<Behaviour as NetworkBehaviour>::OutEvent, <Behaviour as NetworkBehaviour>::ConnectionHandler, <<<Behaviour as NetworkBehaviour>::ConnectionHandler as IntoConnectionHandler>::Handler as ConnectionHandler>::InEvent>>

Polls for things that swarm should do.

fn on_swarm_event( &mut self, event: FromSwarm<'_, <Behaviour as NetworkBehaviour>::ConnectionHandler> )

Informs the behaviour about an event from the Swarm.

fn addresses_of_peer(&mut self, _: &PeerId) -> Vec<Multiaddr, Global>

Addresses that this behaviour is aware of for this specific peer, and that may allow reaching the peer.

fn inject_connection_established( &mut self, peer_id: &PeerId, connection_id: &ConnectionId, endpoint: &ConnectedPoint, failed_addresses: Option<&Vec<Multiaddr, Global>>, other_established: usize )

👎Deprecated since 0.40.2: Handle FromSwarm::ConnectionEstablished in NetworkBehaviour::on_swarm_event instead. The default implementation of this inject_* method delegates to it.

Informs the behaviour about a newly established connection to a peer.

fn inject_connection_closed( &mut self, peer_id: &PeerId, connection_id: &ConnectionId, endpoint: &ConnectedPoint, handler: <Self::ConnectionHandler as IntoConnectionHandler>::Handler, remaining_established: usize )

👎Deprecated since 0.40.2: Handle FromSwarm::ConnectionClosed in NetworkBehaviour::on_swarm_event instead. The default implementation of this inject_* method delegates to it.

Informs the behaviour about a closed connection to a peer.

fn inject_address_change( &mut self, peer_id: &PeerId, connection_id: &ConnectionId, old: &ConnectedPoint, new: &ConnectedPoint )

👎Deprecated since 0.40.2: Handle FromSwarm::AddressChange in NetworkBehaviour::on_swarm_event instead. The default implementation of this inject_* method delegates to it.

Informs the behaviour that the ConnectedPoint of an existing connection has changed.

fn inject_event( &mut self, peer_id: PeerId, connection: ConnectionId, event: <<Self::ConnectionHandler as IntoConnectionHandler>::Handler as ConnectionHandler>::OutEvent )

👎Deprecated since 0.40.2: Implement NetworkBehaviour::on_connection_handler_event instead. The default implementation of this inject_* method delegates to it.

Informs the behaviour about an event generated by the handler dedicated to the peer identified by peer_id. for the behaviour.

fn inject_dial_failure( &mut self, peer_id: Option<PeerId>, handler: Self::ConnectionHandler, error: &DialError )

👎Deprecated since 0.40.2: Handle InEvent::DialFailure in NetworkBehaviour::on_swarm_event instead. The default implementation of this inject_* method delegates to it.

Indicates to the behaviour that the dial to a known or unknown node failed.

fn inject_listen_failure( &mut self, local_addr: &Multiaddr, send_back_addr: &Multiaddr, handler: Self::ConnectionHandler )

👎Deprecated since 0.40.2: Handle FromSwarm::ListenFailure in NetworkBehaviour::on_swarm_event instead. The default implementation of this inject_* method delegates to it.

Indicates to the behaviour that an error happened on an incoming connection during its initial handshake.

fn inject_new_listener(&mut self, id: ListenerId)

👎Deprecated since 0.40.2: Handle FromSwarm::NewListener in NetworkBehaviour::on_swarm_event instead. The default implementation of this inject_* method delegates to it.

Indicates to the behaviour that a new listener was created.

fn inject_new_listen_addr(&mut self, id: ListenerId, addr: &Multiaddr)

👎Deprecated since 0.40.2: Handle FromSwarm::NewListenAddr in NetworkBehaviour::on_swarm_event instead. The default implementation of this inject_* method delegates to it.

Indicates to the behaviour that we have started listening on a new multiaddr.

fn inject_expired_listen_addr(&mut self, id: ListenerId, addr: &Multiaddr)

👎Deprecated since 0.40.2: Handle FromSwarm::ExpiredListenAddr in NetworkBehaviour::on_swarm_event instead. The default implementation of this inject_* method delegates to it.

Indicates to the behaviour that a multiaddr we were listening on has expired, which means that we are no longer listening on it.

fn inject_listener_error(&mut self, id: ListenerId, err: &(dyn Error + 'static))

👎Deprecated since 0.40.2: Handle FromSwarm::ListenerError in NetworkBehaviour::on_swarm_event instead. The default implementation of this inject_* method delegates to it.

A listener experienced an error.

fn inject_listener_closed(&mut self, id: ListenerId, reason: Result<(), &Error>)

👎Deprecated since 0.40.2: Handle FromSwarm::ListenerClosed in NetworkBehaviour::on_swarm_event instead. The default implementation of this inject_* method delegates to it.

A listener closed.

fn inject_new_external_addr(&mut self, addr: &Multiaddr)

👎Deprecated since 0.40.2: Handle FromSwarm::NewExternalAddr in NetworkBehaviour::on_swarm_event instead. The default implementation of this inject_* method delegates to it.

Indicates to the behaviour that we have discovered a new external address for us.

fn inject_expired_external_addr(&mut self, addr: &Multiaddr)

👎Deprecated since 0.40.2: Handle FromSwarm::ExpiredExternalAddr in NetworkBehaviour::on_swarm_event instead. The default implementation of this inject_* method delegates to it.

Indicates to the behaviour that an external address was removed.