Struct UpDownCounter

pub struct UpDownCounter<T>(/* private fields */);

An instrument that records increasing or decreasing values.

Implementations

impl<T> UpDownCounter<T>

pub fn new(inner: Arc<dyn SyncUpDownCounter<T> + Send + Sync>) -> Self

Create a new up down counter.

pub fn add(&self, value: T, attributes: &[KeyValue])

Records an increment or decrement to the counter.

Trait Implementations

impl<T: Clone> Clone for UpDownCounter<T>

fn clone(&self) -> UpDownCounter<T>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T> Debug for UpDownCounter<T>

where T: Debug,

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

Formats the value using the given formatter.

impl TryFrom<InstrumentBuilder<'_, UpDownCounter<f64>>> for UpDownCounter<f64>

type Error = MetricsError

The type returned in the event of a conversion error.

fn try_from( builder: InstrumentBuilder<'_, UpDownCounter<f64>>, ) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<InstrumentBuilder<'_, UpDownCounter<i64>>> for UpDownCounter<i64>

type Error = MetricsError

The type returned in the event of a conversion error.

fn try_from( builder: InstrumentBuilder<'_, UpDownCounter<i64>>, ) -> Result<Self, Self::Error>

Performs the conversion.