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 new(tx: UnboundedSender<PubSubInstruction>) -> Self

Create a new frontend.

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) -> PubSubFrontend

Returns a duplicate 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.

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 16 bytes