Struct libp2p_swarm::protocols_handler::multi::MultiHandler

pub struct MultiHandler<K, H> { /* fields omitted */ }

A ProtocolsHandler for multiple ProtocolsHandlers of the same type.

Implementations

impl<K, H> MultiHandler<K, H> where
    K: Hash + Eq,
    H: ProtocolsHandler, 

pub fn try_from_iter<I>(iter: I) -> Result<Self, DuplicateProtonameError> where
    I: IntoIterator<Item = (K, H)>, 

Create and populate a MultiHandler from the given handler iterator.

It is an error for any two protocols handlers to share the same protocol name.

Note: All handlers should use the same [upgrade::Version] for the inbound and outbound SubstreamProtocols.

Trait Implementations

impl<K: Clone, H: Clone> Clone for MultiHandler<K, H>

fn clone(&self) -> MultiHandler<K, H>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<K, H> Debug for MultiHandler<K, H> where
    K: Debug + Eq + Hash,
    H: Debug, 

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

Formats the value using the given formatter.

impl<K, H> ProtocolsHandler for MultiHandler<K, H> where
    K: Clone + Hash + Eq + Send + 'static,
    H: ProtocolsHandler,
    H::InboundProtocol: InboundUpgradeSend,
    H::OutboundProtocol: OutboundUpgradeSend, 

type InEvent = (K, <H as ProtocolsHandler>::InEvent)

Custom event that can be received from the outside.

type OutEvent = (K, <H as ProtocolsHandler>::OutEvent)

Custom event that can be produced by the handler and that will be returned to the outside.

type Error = <H as ProtocolsHandler>::Error

The type of errors returned by ProtocolsHandler::poll.

type InboundProtocol = Upgrade<K, <H as ProtocolsHandler>::InboundProtocol>

The inbound upgrade for the protocol(s) used by the handler.

type OutboundProtocol = <H as ProtocolsHandler>::OutboundProtocol

The outbound upgrade for the protocol(s) used by the handler.

type InboundOpenInfo = Info<K, <H as ProtocolsHandler>::InboundOpenInfo>

The type of additional information returned from listen_protocol.

type OutboundOpenInfo = (K, <H as ProtocolsHandler>::OutboundOpenInfo)

The type of additional information passed to an OutboundSubstreamRequest.

fn listen_protocol(
    &self
) -> SubstreamProtocol<Self::InboundProtocol, Self::InboundOpenInfo>

The InboundUpgrade to apply on inbound substreams to negotiate the desired protocols.

fn inject_fully_negotiated_outbound(
    &mut self,
    protocol: <Self::OutboundProtocol as OutboundUpgradeSend>::Output,
    (key, arg): Self::OutboundOpenInfo
)

Injects the output of a successful upgrade on a new outbound substream.

fn inject_fully_negotiated_inbound(
    &mut self,
    (key, arg): <Self::InboundProtocol as InboundUpgradeSend>::Output,
    mut info: Self::InboundOpenInfo
)

Injects the output of a successful upgrade on a new inbound substream.

fn inject_event(&mut self, (key, event): Self::InEvent)

Injects an event coming from the outside in the handler.

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

Notifies the handler of a change in the address of the remote.

fn inject_dial_upgrade_error(
    &mut self,
    (key, arg): Self::OutboundOpenInfo,
    error: ProtocolsHandlerUpgrErr<<Self::OutboundProtocol as OutboundUpgradeSend>::Error>
)

Indicates to the handler that upgrading an outbound substream to the given protocol has failed.

fn inject_listen_upgrade_error(
    &mut self,
    mut info: Self::InboundOpenInfo,
    error: ProtocolsHandlerUpgrErr<<Self::InboundProtocol as InboundUpgradeSend>::Error>
)

Indicates to the handler that upgrading an inbound substream to the given protocol has failed.

fn connection_keep_alive(&self) -> KeepAlive

Returns until when the connection should be kept alive.

fn poll(
    &mut self,
    cx: &mut Context<'_>
) -> Poll<ProtocolsHandlerEvent<Self::OutboundProtocol, Self::OutboundOpenInfo, Self::OutEvent, Self::Error>>

Should behave like Stream::poll().

fn map_in_event<TNewIn, TMap>(self, map: TMap) -> MapInEvent<Self, TNewIn, TMap> where
    Self: Sized,
    TMap: Fn(&TNewIn) -> Option<&Self::InEvent>, 

Adds a closure that turns the input event into something else.

fn map_out_event<TMap, TNewOut>(self, map: TMap) -> MapOutEvent<Self, TMap> where
    Self: Sized,
    TMap: FnMut(Self::OutEvent) -> TNewOut, 

Adds a closure that turns the output event into something else.

fn select<TProto2>(
    self,
    other: TProto2
) -> ProtocolsHandlerSelect<Self, TProto2> where
    Self: Sized, 

Creates a new ProtocolsHandler that selects either this handler or other by delegating methods calls appropriately.

fn into_node_handler_builder(self) -> NodeHandlerWrapperBuilder<Self> where
    Self: Sized, 

Creates a builder that allows creating a NodeHandler that handles this protocol exclusively.