Struct NoopSink 

pub struct NoopSink;

Default sink that discards everything. Lower overhead than even a tracing::trace! call.

Trait Implementations

impl Clone for NoopSink

fn clone(&self) -> NoopSink

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for NoopSink

impl Debug for NoopSink

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

Formats the value using the given formatter.

impl Default for NoopSink

fn default() -> NoopSink

Returns the “default value” for a type.

impl MetricsSink for NoopSink

fn counter(&self, _name: &str, _labels: &[(&str, &str)], _value: u64)

Increment a counter by value.

fn gauge(&self, _name: &str, _labels: &[(&str, &str)], _value: f64)

Record a gauge value.

fn histogram(&self, _name: &str, _labels: &[(&str, &str)], _value: f64)

Observe a histogram sample.

fn inc(&self, name: &str)

Convenience: increment by 1 with no labels.