Struct ProductGauge 

pub struct ProductGauge { /* private fields */ }

Typed handle for a registered product gauge.

Implementations

impl ProductGauge

pub fn from_handle(handle: ProductMetricHandle) -> ProductMetricResult<Self>

Creates a typed gauge from an opaque product metric handle.

Errors

Returns an error when the handle is not a gauge or its descriptor is unavailable.

pub const fn handle(&self) -> ProductMetricHandle

Returns the underlying opaque handle.

pub fn set(&self, label_values: &[&str], value: f64)

Sets this gauge and logs recording failures.

pub fn try_set( &self, label_values: &[&str], value: f64, ) -> ProductMetricResult<()>

Sets this gauge and returns recording failures.

Errors

Returns an error when the label count is wrong or the gauge cannot be set.

pub fn add(&self, label_values: &[&str], value: f64)

Adds to this gauge and logs recording failures.

pub fn try_add( &self, label_values: &[&str], value: f64, ) -> ProductMetricResult<()>

Adds to this gauge and returns recording failures.

Errors

Returns an error when the label count is wrong or the gauge cannot be adjusted.

Trait Implementations

impl Clone for ProductGauge

fn clone(&self) -> ProductGauge

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ProductGauge

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

Formats the value using the given formatter.

impl PartialEq for ProductGauge

fn eq(&self, other: &ProductGauge) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for ProductGauge

impl Eq for ProductGauge

impl StructuralPartialEq for ProductGauge