cargo::util::counter

Struct MetricsCounter

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

A metrics counter storing only latest N records.

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§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.

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impl<const N: usize> MetricsCounter<N>

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

Creates a new counter with an initial value.

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

Adds record to the counter.

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pub fn rate(&self) -> f32

Calculates per-second average rate of all slots.

Auto Trait Implementations§

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impl<const N: usize> Freeze for MetricsCounter<N>

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impl<const N: usize> RefUnwindSafe for MetricsCounter<N>

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impl<const N: usize> Send for MetricsCounter<N>

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impl<const N: usize> Sync for MetricsCounter<N>

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impl<const N: usize> Unpin for MetricsCounter<N>

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impl<const N: usize> UnwindSafe for MetricsCounter<N>

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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where T: ?Sized,

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fn borrow(&self) -> &T

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impl<T> BorrowMut<T> for T
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fn borrow_mut(&mut self) -> &mut T

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

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fn into(self) -> U

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impl<T> Pointable for T

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const ALIGN: usize = _

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type Init = T

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unsafe fn init(init: <T as Pointable>::Init) -> usize

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unsafe fn drop(ptr: usize)

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impl<T> Same for T

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type Output = T

Should always be Self
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type Error = Infallible

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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

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impl<T, U> TryInto<U> for T
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type Error = <U as TryFrom<T>>::Error

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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

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fn vzip(self) -> V

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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.