Struct NoopMeterCore

pub struct NoopMeterCore { /* private fields */ }

A no-op instance of a Meter

Implementations

impl NoopMeterCore

pub fn new() -> Self

Create a new no-op meter core.

Trait Implementations

impl Debug for NoopMeterCore

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

Formats the value using the given formatter.

impl Default for NoopMeterCore

fn default() -> NoopMeterCore

Returns the “default value” for a type.

impl InstrumentProvider for NoopMeterCore

fn register_callback( &self, _instruments: &[Arc<dyn Any>], _callback: Box<dyn Fn(&dyn Observer) + Send + Sync>, ) -> Result<Box<dyn CallbackRegistration>>

Captures the function that will be called during data collection.

fn u64_counter( &self, _name: Cow<'static, str>, _description: Option<Cow<'static, str>>, _unit: Option<Unit>, ) -> Result<Counter<u64>>

creates an instrument for recording increasing values.

fn f64_counter( &self, _name: Cow<'static, str>, _description: Option<Cow<'static, str>>, _unit: Option<Unit>, ) -> Result<Counter<f64>>

creates an instrument for recording increasing values.

fn u64_observable_counter( &self, _name: Cow<'static, str>, _description: Option<Cow<'static, str>>, _unit: Option<Unit>, _callback: Vec<Callback<u64>>, ) -> Result<ObservableCounter<u64>>

creates an instrument for recording increasing values via callback.

fn f64_observable_counter( &self, _name: Cow<'static, str>, _description: Option<Cow<'static, str>>, _unit: Option<Unit>, _callback: Vec<Callback<f64>>, ) -> Result<ObservableCounter<f64>>

creates an instrument for recording increasing values via callback.

fn i64_up_down_counter( &self, _name: Cow<'static, str>, _description: Option<Cow<'static, str>>, _unit: Option<Unit>, ) -> Result<UpDownCounter<i64>>

creates an instrument for recording changes of a value.

fn f64_up_down_counter( &self, _name: Cow<'static, str>, _description: Option<Cow<'static, str>>, _unit: Option<Unit>, ) -> Result<UpDownCounter<f64>>

creates an instrument for recording changes of a value.

fn i64_observable_up_down_counter( &self, _name: Cow<'static, str>, _description: Option<Cow<'static, str>>, _unit: Option<Unit>, _callback: Vec<Callback<i64>>, ) -> Result<ObservableUpDownCounter<i64>>

creates an instrument for recording changes of a value.

fn f64_observable_up_down_counter( &self, _name: Cow<'static, str>, _description: Option<Cow<'static, str>>, _unit: Option<Unit>, _callback: Vec<Callback<f64>>, ) -> Result<ObservableUpDownCounter<f64>>

creates an instrument for recording changes of a value via callback.

fn u64_gauge( &self, _name: Cow<'static, str>, _description: Option<Cow<'static, str>>, _unit: Option<Unit>, ) -> Result<Gauge<u64>>

creates an instrument for recording independent values.

fn f64_gauge( &self, _name: Cow<'static, str>, _description: Option<Cow<'static, str>>, _unit: Option<Unit>, ) -> Result<Gauge<f64>>

creates an instrument for recording independent values.

fn i64_gauge( &self, _name: Cow<'static, str>, _description: Option<Cow<'static, str>>, _unit: Option<Unit>, ) -> Result<Gauge<i64>>

creates an instrument for recording independent values.

fn u64_observable_gauge( &self, _name: Cow<'static, str>, _description: Option<Cow<'static, str>>, _unit: Option<Unit>, _callback: Vec<Callback<u64>>, ) -> Result<ObservableGauge<u64>>

creates an instrument for recording the current value via callback.

fn i64_observable_gauge( &self, _name: Cow<'static, str>, _description: Option<Cow<'static, str>>, _unit: Option<Unit>, _callback: Vec<Callback<i64>>, ) -> Result<ObservableGauge<i64>>

creates an instrument for recording the current value via callback.

fn f64_observable_gauge( &self, _name: Cow<'static, str>, _description: Option<Cow<'static, str>>, _unit: Option<Unit>, _callback: Vec<Callback<f64>>, ) -> Result<ObservableGauge<f64>>

creates an instrument for recording the current value via callback.

fn f64_histogram( &self, _name: Cow<'static, str>, _description: Option<Cow<'static, str>>, _unit: Option<Unit>, ) -> Result<Histogram<f64>>

creates an instrument for recording a distribution of values.

fn u64_histogram( &self, _name: Cow<'static, str>, _description: Option<Cow<'static, str>>, _unit: Option<Unit>, ) -> Result<Histogram<u64>>

creates an instrument for recording a distribution of values.