Struct libp2p_networking :: network :: node :: handle :: NetworkNodeHandle Copy item path

impl<T: NodeType> NetworkNodeHandle<T>

pub async fn shutdown(&self) -> Result<(), NetworkError>

Cleanly shuts down a swarm node This is done by sending a message to the swarm itself to spin down

pub fn begin_bootstrap(&self) -> Result<(), NetworkError>

Notify the network to begin the bootstrap process

§Errors

If unable to send via send_network. This should only happen if the network is shut down.

pub fn listen_addr(&self) -> Multiaddr

Get a reference to the network node handle’s listen addr.

pub async fn print_routing_table(&self) -> Result<(), NetworkError>

Print out the routing table used by kademlia NOTE: only for debugging purposes currently

§Errors

if the client has stopped listening for a response

pub async fn wait_to_connect( &self, num_required_peers: usize, node_id: usize, ) -> Result<(), NetworkError>

Wait until at least num_peers have connected

§Errors

If the channel closes before the result can be sent back

pub async fn lookup_pid(&self, peer_id: PeerId) -> Result<(), NetworkError>

Look up a peer’s addresses in kademlia NOTE: this should always be called before any request_response is initiated

§Errors

if the client has stopped listening for a response

pub async fn lookup_node( &self, key: &[u8], dht_timeout: Duration, ) -> Result<PeerId, NetworkError>

Looks up a node’s PeerId by its staking key. Is authenticated through get_record assuming each record should be signed.

§Errors

If the DHT lookup fails

pub async fn put_record( &self, key: RecordKey, value: RecordValue<T::SignatureKey>, ) -> Result<(), NetworkError>

Insert a record into the kademlia DHT

§Errors

Will return NetworkError::FailedToSerialize when unable to serialize the key or value

pub async fn get_record( &self, key: RecordKey, retry_count: u8, ) -> Result<Vec<u8>, NetworkError>

Receive a record from the kademlia DHT if it exists. Must be replicated on at least 2 nodes

§Errors

Will return NetworkError::FailedToSerialize when unable to serialize the key
Will return NetworkError::FailedToDeserialize when unable to deserialize the returned value

pub async fn get_record_timeout( &self, key: RecordKey, timeout_duration: Duration, ) -> Result<Vec<u8>, NetworkError>

Get a record from the kademlia DHT with a timeout

§Errors

Will return NetworkError::Timeout when times out
Will return NetworkError::FailedToSerialize when unable to serialize the key or value
Will return NetworkError::ChannelSendError when underlying NetworkNode has been killed

pub async fn put_record_timeout( &self, key: RecordKey, value: RecordValue<T::SignatureKey>, timeout_duration: Duration, ) -> Result<(), NetworkError>

Insert a record into the kademlia DHT with a timeout

§Errors

Will return NetworkError::Timeout when times out
Will return NetworkError::FailedToSerialize when unable to serialize the key or value
Will return NetworkError::ChannelSendError when underlying NetworkNode has been killed

Subscribe to a topic

§Errors

Will return NetworkError::ChannelSendError when underlying NetworkNode has been killed

pub async fn unsubscribe(&self, topic: String) -> Result<(), NetworkError>

Unsubscribe from a topic

§Errors

Will return NetworkError::ChannelSendError when underlying NetworkNode has been killed

pub fn ignore_peers(&self, peers: Vec<PeerId>) -> Result<(), NetworkError>

Ignore peers when pruning e.g. maintain their connection

§Errors

Will return NetworkError::ChannelSendError when underlying NetworkNode has been killed

pub fn direct_request( &self, pid: PeerId, msg: &[u8], ) -> Result<(), NetworkError>

Make a direct request to peer_id containing msg

§Errors

Will return NetworkError::ChannelSendError when underlying NetworkNode has been killed
Will return NetworkError::FailedToSerialize when unable to serialize msg

pub fn direct_request_no_serialize( &self, pid: PeerId, contents: Vec<u8>, ) -> Result<(), NetworkError>

Make a direct request to peer_id containing msg without serializing

§Errors

Will return NetworkError::ChannelSendError when underlying NetworkNode has been killed
Will return NetworkError::FailedToSerialize when unable to serialize msg

pub fn direct_response( &self, chan: ResponseChannel<Vec<u8>>, msg: &[u8], ) -> Result<(), NetworkError>

Reply with msg to a request over chan

§Errors

Will return NetworkError::ChannelSendError when underlying NetworkNode has been killed
Will return NetworkError::FailedToSerialize when unable to serialize msg

pub fn prune_peer(&self, pid: PeerId) -> Result<(), NetworkError>

Forcefully disconnect from a peer

§Errors

If the channel is closed somehow Shouldnt’ happen.

§Panics

If channel errors out shouldn’t happen.

pub fn gossip(&self, topic: String, msg: &[u8]) -> Result<(), NetworkError>

Gossip a message to peers

§Errors

Will return NetworkError::ChannelSendError when underlying NetworkNode has been killed
Will return NetworkError::FailedToSerialize when unable to serialize msg

pub fn gossip_no_serialize( &self, topic: String, msg: Vec<u8>, ) -> Result<(), NetworkError>

Gossip a message to peers without serializing

§Errors

Will return NetworkError::ChannelSendError when underlying NetworkNode has been killed
Will return NetworkError::FailedToSerialize when unable to serialize msg

pub fn add_known_peers( &self, known_peers: Vec<(PeerId, Multiaddr)>, ) -> Result<(), NetworkError>

Tell libp2p about known network nodes

§Errors

Will return NetworkError::ChannelSendError when underlying NetworkNode has been killed

fn send_request(&self, req: ClientRequest) -> Result<(), NetworkError>

Send a client request to the network

§Errors

Will return NetworkError::ChannelSendError when underlying NetworkNode has been killed

pub async fn num_connected(&self) -> Result<usize, NetworkError>

Returns number of peers this node is connected to

§Errors

If the channel is closed somehow Shouldnt’ happen.

§Panics

If channel errors out shouldn’t happen.

pub async fn connected_pids(&self) -> Result<HashSet<PeerId>, NetworkError>

return hashset of PIDs this node is connected to

§Errors

If the channel is closed somehow Shouldnt’ happen.

§Panics

If channel errors out shouldn’t happen.

pub fn id(&self) -> usize

Get a reference to the network node handle’s id.

pub fn peer_id(&self) -> PeerId

Get a reference to the network node handle’s peer id.

pub fn config(&self) -> &NetworkNodeConfig<T>

Return a reference to the network config

Trait Implementations§

impl<T: Clone + NodeType> Clone for NetworkNodeHandle<T>

fn clone(&self) -> NetworkNodeHandle<T>

Returns a copy of the value. Read more

1.0.0 · source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

impl<T: Debug + NodeType> Debug for NetworkNodeHandle<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

Auto Trait Implementations§

impl<T> !UnwindSafe for NetworkNodeHandle<T>

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