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OutboundRequest

Struct OutboundRequest 

Source
pub struct OutboundRequest {
    pub bytes: Vec<u8>,
    pub req_id: MsgId,
    pub responder: Sender<OutboundEnvelope>,
    pub span: Span,
    pub ty: DmsgType,
    pub target_peer_idx: Option<u32>,
}
Expand description

Envelope sent into the server driver.

The driver writes bytes to the transport then awaits a response, which it forwards as an OutboundEnvelope on responder along with req_id.

span carries the originating client request’s tracing::Span across the mpsc channel boundary so the receiving task’s work nests under the originating client span when distributed tracing is enabled. The default value is tracing::Span::none, which has no overhead when no subscriber is installed.

ty selects the dnode message-type header emitted on the peer plane. Data-plane callers leave it at DmsgType::Req; the gossip task uses DmsgType::GossipSyn / DmsgType::GossipShutdown for fire-and-forget control frames whose responder is never signalled.

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§bytes: Vec<u8>

Wire bytes already encoded by the dispatcher.

§req_id: MsgId

Request id for response tagging.

§responder: Sender<OutboundEnvelope>

Channel the driver pushes the parsed response onto.

§span: Span

Originating client request span; entered by the receiver to nest backend / peer work under the request tree.

§ty: DmsgType

dnode message-type header emitted by the peer driver. Defaults to DmsgType::Req for data-plane requests.

§target_peer_idx: Option<u32>

Index of the target peer the dispatcher is forwarding the request to. The local backend driver and dnode-peer driver stamp this onto the OutboundEnvelope they produce so the reply coalescer can identify the responding replica. None is used for single-target paths where the responder already implies the source.

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impl Debug for OutboundRequest

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

Formats the value using the given formatter. Read more

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