Type Alias DeleteOnDropHistogram 

pub type DeleteOnDropHistogram<L> = DeleteOnDropMetric<HistogramVec, L>;

Available on crate feature metrics only.

A Histogram wrapper that deletes its labels from the vec when it is dropped.

Aliased Type

pub struct DeleteOnDropHistogram<L> {
    inner: Histogram,
    cleanup: Arc<DeleteOnDropCleanup<MetricVec<HistogramVecBuilder>, L>>,
}

Fields

inner: Histogram

cleanup: Arc<DeleteOnDropCleanup<MetricVec<HistogramVecBuilder>, L>>

Shared cleanup handle. The label is removed from vec only when the last clone drops. Held purely for its Drop side effect — never read directly.

Trait Implementations

impl<L> Borrow<Histogram> for DeleteOnDropHistogram<L>

where L: PromLabelsExt,

fn borrow(&self) -> &Histogram

Immutably borrows from an owned value.