Struct metrics_util::registry::GenerationalStorage

pub struct GenerationalStorage<S> { /* private fields */ }

Generational metric storage.

Tracks the “generation” of a metric, which is used to detect updates to metrics where the value otherwise would not be sufficient to be used as an indicator.

Implementations

impl<S> GenerationalStorage<S>

pub fn new(storage: S) -> Self

Creates a new GenerationalStorage.

This wraps the given storage and provides generational semantics on top of it.

impl GenerationalStorage<AtomicStorage>

pub fn atomic() -> Self

Creates a GenerationalStorage that uses AtomicStorage as its underlying storage.

Trait Implementations

impl<K, S: Storage<K>> Storage<K> for GenerationalStorage<S>

type Counter = Generational<<S as Storage<K>>::Counter>

The type used for counters.

type Gauge = Generational<<S as Storage<K>>::Gauge>

The type used for gauges.

type Histogram = Generational<<S as Storage<K>>::Histogram>

The type used for histograms.

fn counter(&self, key: &K) -> Self::Counter

Creates an empty counter.

fn gauge(&self, key: &K) -> Self::Gauge

Creates an empty gauge.

fn histogram(&self, key: &K) -> Self::Histogram

Creates an empty histogram.