InProgressClientRequest

zebra_network::peer::client

Struct InProgressClientRequest 

Source 
pub(super) struct InProgressClientRequest {
    pub request: Request,
    pub tx: MustUseClientResponseSender,
    pub span: Span,
}
Expand description

A message from the peer::Client to the peer::Server, after it has been received by the peer::Server.

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§request: Request

The actual request.

§tx: MustUseClientResponseSender

The return message channel, included because peer::Client::call returns a future that may be moved around before it resolves.

INVARIANT: tx.send() must be called before dropping tx.

JUSTIFICATION: the peer::Client translates Requests into ClientRequests, which it sends to a background task. If the send is Ok(()), it will assume that it is safe to unconditionally poll the Receiver tied to the Sender used to create the ClientRequest.

We also take advantage of this invariant to route inventory requests away from peers that did not respond with that inventory.

We enforce this invariant via the type system, by converting ClientRequests to InProgressClientRequests when they are received by the background task. These conversions are implemented by ClientRequestReceiver.

§span: Span

The tracing context for the request, so that work the connection task does processing messages in the context of this request will have correct context.

Trait Implementations§

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impl Debug for InProgressClientRequest

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

Formats the value using the given formatter. Read more
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impl From<ClientRequest> for InProgressClientRequest

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fn from(client_request: ClientRequest) -> Self

Converts to this type from the input type.

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