Trait opentelemetry::metrics::AsyncUpDownCounter

pub trait AsyncUpDownCounter<T> {
    fn observe(&self, cx: &Context, value: T, attributes: &[KeyValue]);
}

Available on crate feature metrics only.

An SDK implemented async instrument that records increasing or decreasing values.

Required Methods

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

Records the increment or decrement to the counter.

It is only valid to call this within a callback. If called outside of the registered callback it should have no effect on the instrument, and an error will be reported via the error handler.

Implementors

impl<T> AsyncUpDownCounter<T> for NoopAsyncInstrument