Enum opentelemetry::metrics::AsyncRunner

pub enum AsyncRunner {
    F64(Box<dyn Fn(ObserverResult<f64>) + Send + Sync + 'static>),
    I64(Box<dyn Fn(ObserverResult<i64>) + Send + Sync + 'static>),
    U64(Box<dyn Fn(ObserverResult<u64>) + Send + Sync + 'static>),
    Batch(BatchObserverCallback),
}

This is supported on crate feature metrics only.

Called when collecting async instruments

Variants

F64(Box<dyn Fn(ObserverResult<f64>) + Send + Sync + 'static>)

Callback for f64 observed values

I64(Box<dyn Fn(ObserverResult<i64>) + Send + Sync + 'static>)

Callback for i64 observed values

U64(Box<dyn Fn(ObserverResult<u64>) + Send + Sync + 'static>)

Callback for u64 observed values

Batch(BatchObserverCallback)

Callback for batch observed values

Implementations

impl AsyncRunner

pub fn run(
    &self,
    instrument: Arc<dyn AsyncInstrumentCore>,
    f: fn(_: &[KeyValue], _: &[Observation])
)

Run accepts a single instrument and function for capturing observations of that instrument. Each call to the function receives one captured observation. (The function accepts multiple observations so the same implementation can be used for batch runners.)

Trait Implementations

impl Debug for AsyncRunner

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

Formats the value using the given formatter.