Struct opentelemetry::metrics::UpDownCounter

pub struct UpDownCounter<T>(_);

Available on crate feature metrics only.

An instrument that records increasing or decreasing values.

Implementations

impl<T> UpDownCounter<T>

pub fn new(
    inner: Arc<dyn SyncUpDownCounter<T> + Sync + Send + 'static>
) -> UpDownCounter<T>

Create a new up down counter.

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

Records an increment or decrement to the counter.

Trait Implementations

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

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<(), Error>

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<UpDownCounter<f64>, <UpDownCounter<f64> as TryFrom<InstrumentBuilder<'_, UpDownCounter<f64>>>>::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<UpDownCounter<i64>, <UpDownCounter<i64> as TryFrom<InstrumentBuilder<'_, UpDownCounter<i64>>>>::Error>

Performs the conversion.