Struct MetricsRef 

pub struct MetricsRef { /* private fields */ }

A cheap, clonable reader of a listener’s metrics (SRV-030).

Observation is split from lifecycle on purpose: a metrics exporter can hold one of these while the ListenerHandle stays wherever shutdown lives. Before this existed, a product that wanted both had to wrap the handle in an Arc — which made graceful stop() unreachable and silently downgraded shutdown to the fire-and-forget Drop path.

Implementations

impl MetricsRef

pub fn snapshot(&self) -> MetricsSnapshot

Point-in-time metrics (SRV-030).

Trait Implementations

impl Clone for MetricsRef

fn clone(&self) -> MetricsRef

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MetricsRef

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

Formats the value using the given formatter.