Struct OutboundEnvelope 

pub struct OutboundEnvelope {
    pub req_id: MsgId,
    pub rsp: Msg,
    pub span: Span,
    pub source_peer_idx: Option<u32>,
}

Envelope wrapping a dispatcher response and the request id it corresponds to.

span carries the originating request span back to the client-side FSM so the response writeback nests under the originating client span. The default is tracing::Span::none.

source_peer_idx identifies the peer this response came from when the dispatcher fanned the request to multiple replicas. None is used for synthetic / inline / single-target paths where the source is unambiguous.

Fields

req_id: MsgId

Request id the response is for.

rsp: Msg

The response message.

span: Span

Originating request span for cross-task propagation.

source_peer_idx: Option<u32>

Index of the peer this reply was produced by, when known. Set by the per-target server / dnode-server drivers and consumed by the per-request reply coalescer.

Trait Implementations

impl Debug for OutboundEnvelope

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

Formats the value using the given formatter.