Struct mz_ore::metrics::delete_on_drop::DeleteOnDropGauge

pub struct DeleteOnDropGauge<'a, P, L>where
    P: Atomic,
    L: PromLabelsExt<'a>,{
    inner: GenericGauge<P>,
    labels: L,
    vec: GenericGaugeVec<P>,
    _phantom: &'a PhantomData<()>,
}

Available on crate feature metrics only.

A GenericGauge wrapper that deletes its labels from the vec when it 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: GenericGauge<P>

labels: L

vec: GenericGaugeVec<P>

_phantom: &'a PhantomData<()>

Implementations

impl<'a, P, L> DeleteOnDropGauge<'a, P, L>where P: Atomic, L: PromLabelsExt<'a>,

fn from_metric_vector(vec: GenericGaugeVec<P>, labels: L) -> Self

Methods from Deref<Target = GenericGauge<P>>

pub fn set(&self, v: <P as Atomic>::T)

Set the gauge to an arbitrary value.

pub fn inc(&self)

Increase the gauge by 1.

pub fn dec(&self)

Decrease the gauge by 1.

pub fn add(&self, v: <P as Atomic>::T)

Add the given value to the gauge. (The value can be negative, resulting in a decrement of the gauge.)

pub fn sub(&self, v: <P as Atomic>::T)

Subtract the given value from the gauge. (The value can be negative, resulting in an increment of the gauge.)

pub fn get(&self) -> <P as Atomic>::T

Return the gauge value.

Trait Implementations

impl<'a, P, L> Borrow<GenericGauge<P>> for DeleteOnDropGauge<'a, P, L>where P: Atomic, L: PromLabelsExt<'a>,

fn borrow(&self) -> &GenericGauge<P>

Immutably borrows from an owned value.

impl<'a, P, L> Debug for DeleteOnDropGauge<'a, P, L>where P: Atomic + Debug, L: PromLabelsExt<'a> + Debug,

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

Formats the value using the given formatter.

impl<'a, P, L> Deref for DeleteOnDropGauge<'a, P, L>where P: Atomic, L: PromLabelsExt<'a>,

type Target = GenericGauge<P>

The resulting type after dereferencing.

fn deref(&self) -> &GenericGauge<P>

Dereferences the value.

impl<'a, P, L> Drop for DeleteOnDropGauge<'a, P, L>where P: Atomic, L: PromLabelsExt<'a>,

fn drop(&mut self)

Executes the destructor for this type.