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TelemetryHub

oxidelake_core::telemetry

Struct TelemetryHub 

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

The engine-wide telemetry hub.

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impl TelemetryHub

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pub fn new() -> Arc<Self> ⓘ

Creates a shared hub.

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pub fn register_operator( &self, name: impl Into<String>, backend: BackendKind, ) -> Arc<OperatorStats> ⓘ

Registers an operator and returns its live counters. Ids increase monotonically for the life of the hub; the oldest registrations are evicted once MAX_OPERATORS are held.

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pub fn clear_operators(&self)

Forgets every registered operator (e.g. before running a new query whose dashboard should not show the previous one’s counters).

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pub fn set_plan(&self, nodes: Vec<PlanNodeSummary>)

Replaces the displayed plan.

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pub const fn tiers(&self) -> &TierGauges

Memory tier gauges.

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pub const fn spill(&self) -> &SpillCounters

Spill counters.

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pub fn snapshot(&self) -> TelemetrySnapshot

A consistent point-in-time copy of everything the dashboard renders.

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impl Debug for TelemetryHub

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

Formats the value using the given formatter. Read more
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impl Default for TelemetryHub

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fn default() -> TelemetryHub

Returns the “default value” for a type. Read more

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impl<T> Allocation for T
where T: RefUnwindSafe + Send + Sync,

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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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impl<T> Borrow<T> for T
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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
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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, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

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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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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type Output = T

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type Error = !

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type Error = <U as TryFrom<T>>::Error

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