Struct RoutingDecision 

pub struct RoutingDecision {
    pub timestamp_ms: i64,
    pub phase: RoutingPhase,
    pub from: Option<TransportType>,
    pub to: Option<TransportType>,
    pub winning_score: Option<f32>,
    pub reason_code: Option<RoutingReasonCode>,
    pub scores: Vec<(TransportType, TransportScore)>,
}

A single structured routing decision.

Populated by the DORS callback installed by OfflineProtocol::install_telemetry_sink. The scores field is only populated when TelemetryConfig::routing_diagnostic is true; at the default verbosity the vector is empty, keeping the hot-path allocation free.

A future PR will introduce a Suppressed phase carrying hysteresis / cooldown / stability detail; that variant and its payload were excluded from this record on purpose so the shape can be designed alongside the emit sites that produce it.

Fields

timestamp_ms: i64

Emission timestamp (milliseconds since Unix epoch).

phase: RoutingPhase

Which kind of decision this is.

from: Option<TransportType>

Previous transport, when applicable.

to: Option<TransportType>

Chosen / target transport, when applicable.

winning_score: Option<f32>

Total score of the winning transport, when applicable.

reason_code: Option<RoutingReasonCode>

Reason for the decision, when one applies.

scores: Vec<(TransportType, TransportScore)>

Full per-transport score breakdown. Empty unless TelemetryConfig::routing_diagnostic is enabled.

Implementations

impl RoutingDecision

pub const NAME: &'static str = "protocol.routing.decision"

Stable OTel-friendly name for this record.

pub fn telemetry_name(&self) -> &'static str

Returns the stable telemetry name.

Trait Implementations

impl Clone for RoutingDecision

fn clone(&self) -> RoutingDecision

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RoutingDecision

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

Formats the value using the given formatter.