Struct mz_ore::metrics::delete_on_drop::DeleteOnDropHistogram

pub struct DeleteOnDropHistogram<'a, L>
where
    L: PromLabelsExt<'a>,
{
    inner: Histogram,
    labels: L,
    vec: HistogramVec,
    _phantom: &'a PhantomData<()>,
}

Available on crate feature metrics only.

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

It adds a method to create a concrete metric from the vector that gets removed from the vector when the concrete metric is dropped.

NOTE: This type implements Borrow, which imposes some constraints on implementers. To ensure these constraints, do not implement any of the Eq, Ord, or Hash traits on this. type.

Fields

inner: Histogram

labels: L

vec: HistogramVec

_phantom: &'a PhantomData<()>

Implementations

impl<'a, L> DeleteOnDropHistogram<'a, L>

where L: PromLabelsExt<'a>,

fn from_metric_vector(vec: HistogramVec, labels: L) -> Self

Methods from Deref<Target = Histogram>

pub fn observe(&self, v: f64)

Add a single observation to the Histogram.

pub fn start_timer(&self) -> HistogramTimer

Return a HistogramTimer to track a duration.

pub fn observe_closure_duration<F, T>(&self, f: F) -> T

where F: FnOnce() -> T,

Observe execution time of a closure, in second.

pub fn local(&self) -> LocalHistogram

Return a LocalHistogram for single thread usage.

pub fn get_sample_sum(&self) -> f64

Return accumulated sum of all samples.

pub fn get_sample_count(&self) -> u64

Return count of all samples.

Trait Implementations

impl<'a, L> Borrow<Histogram> for DeleteOnDropHistogram<'a, L>

where L: PromLabelsExt<'a>,

fn borrow(&self) -> &Histogram

Immutably borrows from an owned value.

impl<'a, L> Debug for DeleteOnDropHistogram<'a, L>

where L: PromLabelsExt<'a> + Debug,

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

Formats the value using the given formatter.

impl<'a, L> Deref for DeleteOnDropHistogram<'a, L>

where L: PromLabelsExt<'a>,

type Target = Histogram

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<'a, L> Drop for DeleteOnDropHistogram<'a, L>

where L: PromLabelsExt<'a>,

fn drop(&mut self)

Executes the destructor for this type.