pub struct KademliaHandler<TUserData> { /* private fields */ }
Expand description

Protocol handler that manages substreams for the Kademlia protocol on a single connection with a peer.

The handler will automatically open a Kademlia substream with the remote for each request we make.

It also handles requests made by the remote.

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impl<TUserData> KademliaHandler<TUserData>where TUserData: Clone + Debug + Send + 'static + Unpin,

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pub fn new( config: KademliaHandlerConfig, endpoint: ConnectedPoint, remote_peer_id: PeerId ) -> Self

Create a KademliaHandler using the given configuration.

Trait Implementations§

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impl<TUserData> ConnectionHandler for KademliaHandler<TUserData>where TUserData: Clone + Debug + Send + 'static + Unpin,

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type InEvent = KademliaHandlerIn<TUserData>

Custom event that can be received from the outside.
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type OutEvent = KademliaHandlerEvent<TUserData>

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

The type of errors returned by ConnectionHandler::poll.
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type InboundProtocol = EitherUpgrade<KademliaProtocolConfig, DeniedUpgrade>

The inbound upgrade for the protocol(s) used by the handler.
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type OutboundProtocol = KademliaProtocolConfig

The outbound upgrade for the protocol(s) used by the handler.
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type OutboundOpenInfo = (KadRequestMsg, Option<TUserData>)

The type of additional information passed to an OutboundSubstreamRequest.
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type InboundOpenInfo = ()

The type of additional information returned from listen_protocol.
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fn listen_protocol( &self ) -> SubstreamProtocol<Self::InboundProtocol, Self::InboundOpenInfo>

The InboundUpgrade to apply on inbound substreams to negotiate the desired protocols. Read more
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fn on_behaviour_event(&mut self, message: KademliaHandlerIn<TUserData>)

Informs the handler about an event from the NetworkBehaviour.
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fn connection_keep_alive(&self) -> KeepAlive

Returns until when the connection should be kept alive. Read more
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fn poll( &mut self, cx: &mut Context<'_> ) -> Poll<ConnectionHandlerEvent<Self::OutboundProtocol, Self::OutboundOpenInfo, Self::OutEvent, Self::Error>>

Should behave like Stream::poll().
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fn on_connection_event( &mut self, event: ConnectionEvent<'_, Self::InboundProtocol, Self::OutboundProtocol, Self::InboundOpenInfo, Self::OutboundOpenInfo> )

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

👎Deprecated since 0.41.0: Handle ConnectionEvent::FullyNegotiatedInbound on ConnectionHandler::on_connection_event instead. The default implemention of this inject_* method delegates to it.
Injects the output of a successful upgrade on a new inbound substream. Read more
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fn inject_fully_negotiated_outbound( &mut self, protocol: <Self::OutboundProtocol as OutboundUpgradeSend>::Output, info: Self::OutboundOpenInfo )

👎Deprecated since 0.41.0: Handle ConnectionEvent::FullyNegotiatedOutbound on ConnectionHandler::on_connection_event instead. The default implemention of this inject_* method delegates to it.
Injects the output of a successful upgrade on a new outbound substream. Read more
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fn inject_event(&mut self, event: Self::InEvent)

👎Deprecated since 0.41.0: Implement ConnectionHandler::on_behaviour_event instead. The default implementation of inject_event delegates to it.
Injects an event coming from the outside in the handler.
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fn inject_address_change(&mut self, new_address: &Multiaddr)

👎Deprecated since 0.41.0: Handle ConnectionEvent::AddressChange on ConnectionHandler::on_connection_event instead. The default implemention of this inject_* method delegates to it.
Notifies the handler of a change in the address of the remote.
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fn inject_dial_upgrade_error( &mut self, info: Self::OutboundOpenInfo, error: ConnectionHandlerUpgrErr<<Self::OutboundProtocol as OutboundUpgradeSend>::Error> )

👎Deprecated since 0.41.0: Handle ConnectionEvent::DialUpgradeError on ConnectionHandler::on_connection_event instead. The default implemention of this inject_* method delegates to it.
Indicates to the handler that upgrading an outbound substream to the given protocol has failed.
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fn inject_listen_upgrade_error( &mut self, info: Self::InboundOpenInfo, error: ConnectionHandlerUpgrErr<<Self::InboundProtocol as InboundUpgradeSend>::Error> )

👎Deprecated since 0.41.0: Handle ConnectionEvent::ListenUpgradeError on ConnectionHandler::on_connection_event instead. The default implemention of this inject_* method delegates to it.
Indicates to the handler that upgrading an inbound substream to the given protocol has failed.
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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.
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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.
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fn select<TProto2>( self, other: TProto2 ) -> ConnectionHandlerSelect<Self, TProto2>where Self: Sized,

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

Auto Trait Implementations§

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impl<TUserData> !RefUnwindSafe for KademliaHandler<TUserData>

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impl<TUserData> Send for KademliaHandler<TUserData>where TUserData: Send,

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impl<TUserData> !Sync for KademliaHandler<TUserData>

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impl<TUserData> Unpin for KademliaHandler<TUserData>

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impl<TUserData> !UnwindSafe for KademliaHandler<TUserData>

Blanket Implementations§

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impl<T> Any for Twhere T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoConnectionHandler for Twhere T: ConnectionHandler,

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type Handler = T

The protocols handler.
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fn into_handler(self, _: &PeerId, _: &ConnectedPoint) -> T

Builds the protocols handler. Read more
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fn inbound_protocol( &self ) -> <<T as IntoConnectionHandler>::Handler as ConnectionHandler>::InboundProtocol

Return the handler’s inbound protocol.
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fn select<TProto2>( self, other: TProto2 ) -> IntoConnectionHandlerSelect<Self, TProto2>where Self: Sized,

Builds an implementation of IntoConnectionHandler that handles both this protocol and the other one together.
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impl<T> Same<T> for T

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type Output = T

Should always be Self
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for Twhere V: MultiLane<T>,

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fn vzip(self) -> V