Struct PubSubFrontend

pub struct PubSubFrontend { /* private fields */ }

A PubSubFrontend is Transport composed of a channel to a running PubSub service.

Implementations

impl PubSubFrontend

pub fn get_subscription( &self, id: B256, ) -> impl Future<Output = TransportResult<RawSubscription>> + Send + 'static

Get the subscription ID for a local ID.

pub fn unsubscribe(&self, id: B256) -> TransportResult<()>

Unsubscribe from a subscription.

pub fn send( &self, req: SerializedRequest, ) -> impl Future<Output = TransportResult<Response>> + Send + 'static

Send a request.

pub fn send_packet(&self, req: RequestPacket) -> TransportFut<'static>

Send a packet of requests, by breaking it up into individual requests.

Once all responses are received, we return a single response packet.

pub fn channel_size(&self) -> usize

Get the currently configured channel size. This is the number of items to buffer in new subscription channels. Defaults to 16. See tokio::sync::broadcast for a description of relevant behavior.

pub fn set_channel_size(&self, channel_size: usize)

Set the channel size. This is the number of items to buffer in new subscription channels. Defaults to 16. See tokio::sync::broadcast for a description of relevant behavior.

Trait Implementations

impl Clone for PubSubFrontend

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for PubSubFrontend

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

Formats the value using the given formatter.

impl Service<RequestPacket> for &PubSubFrontend

type Response = ResponsePacket

Responses given by the service.

type Error = RpcError<TransportErrorKind>

Errors produced by the service.

type Future = Pin<Box<dyn Future<Output = Result<ResponsePacket, RpcError<TransportErrorKind>>> + Send>>

The future response value.

fn poll_ready(&mut self, _cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>>

Returns Poll::Ready(Ok(())) when the service is able to process requests.

fn call(&mut self, req: RequestPacket) -> Self::Future

Process the request and return the response asynchronously.

impl Service<RequestPacket> for PubSubFrontend

type Response = ResponsePacket

Responses given by the service.

type Error = RpcError<TransportErrorKind>

Errors produced by the service.

type Future = Pin<Box<dyn Future<Output = Result<ResponsePacket, RpcError<TransportErrorKind>>> + Send>>

The future response value.

fn poll_ready(&mut self, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>>

Returns Poll::Ready(Ok(())) when the service is able to process requests.

fn call(&mut self, req: RequestPacket) -> Self::Future

Process the request and return the response asynchronously.