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ObsHandle

courier::observability::metrics

Struct ObsHandle 

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pub struct ObsHandle { /* private fields */ }
Expand description

Shared metrics provider plus pre-built instrument handles.

One ObsHandle is constructed per Courier and cloned into every NodeCtx. Cloning is cheap — instruments are Arc internally.

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impl ObsHandle

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pub fn noop() -> Self

Build an ObsHandle with no exporter installed. Counters and histograms still work (so callers don’t branch on Option), but observations are dropped. This uses a private no-op meter, not opentelemetry::global, so embedded hosts with a global provider do not receive Courier metrics when Courier metrics are disabled.

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pub fn force_flush(&self)

Force-flush pending observations without tearing down the provider.

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pub fn shutdown(&self)

Drain observations and tear down the installed provider.

Trait Implementations§

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impl Clone for ObsHandle

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fn clone(&self) -> ObsHandle

Returns a duplicate of the value. Read more
1.0.0 · Source§

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

Performs copy-assignment from source. Read more

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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Immutably borrows from an owned value. Read more
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fn borrow_mut(&mut self) -> &mut T

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impl<T> CloneToUninit for T
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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> FromRef<T> for T
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fn from_ref(input: &T) -> T

Converts to this type from a reference to the input type.
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impl<T> FutureExt for T

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fn with_context(self, otel_cx: Context) -> WithContext<Self>

Attaches the provided Context to this type, returning a WithContext wrapper. Read more
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fn with_current_context(self) -> WithContext<Self>

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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Wrap the input message T in a tonic::Request
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type Output = T

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