Struct NoopMeterCore 

pub struct NoopMeterCore { /* private fields */ }

Available on crate feature metrics only.

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 MeterCore for NoopMeterCore

fn new_sync_instrument( &self, _descriptor: Descriptor, ) -> Result<Arc<dyn SyncInstrumentCore>>

Create a new synchronous instrument implementation.

fn new_async_instrument( &self, _descriptor: Descriptor, _runner: Option<AsyncRunner>, ) -> Result<Arc<dyn AsyncInstrumentCore>>

Create a new asynchronous instrument implementation.

fn record_batch_with_context( &self, _cx: &Context, _attributes: &[KeyValue], _measurements: Vec<Measurement>, )

Atomically record a batch of measurements.

fn new_batch_observer(&self, _runner: AsyncRunner) -> Result<()>

Register a batch observer