Struct cargo::util::counter::MetricsCounter

pub struct MetricsCounter<const N: usize> {
    slots: [(usize, Instant); N],
    index: usize,
}

A metrics counter storing only latest N records.

Fields

slots: [(usize, Instant); N]

Slots to store metrics.

index: usize

The slot of the oldest record. Also the next slot to store the new record.

Implementations

impl<const N: usize> MetricsCounter<N>

pub fn new(init: usize, init_at: Instant) -> Self

Creates a new counter with an initial value.

pub fn add(&mut self, data: usize, added_at: Instant)

Adds record to the counter.

pub fn rate(&self) -> f32

Calculates per-second average rate of all slots.

Layout

Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.