Struct metrics::NoopRecorder

pub struct NoopRecorder;

A no-op recorder.

Used as the default recorder when one has not been installed yet. Useful for acting as the root recorder when testing layers.

Trait Implementations

impl Recorder for NoopRecorder

fn describe_counter( &self, _key: KeyName, _unit: Option<Unit>, _description: &'static str )

Describes a counter.

fn describe_gauge( &self, _key: KeyName, _unit: Option<Unit>, _description: &'static str )

Describes a gauge.

fn describe_histogram( &self, _key: KeyName, _unit: Option<Unit>, _description: &'static str )

Describes a histogram.

fn register_counter(&self, _key: &Key) -> Counter

Registers a counter.

fn register_gauge(&self, _key: &Key) -> Gauge

Registers a gauge.

fn register_histogram(&self, _key: &Key) -> Histogram

Registers a histogram.