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Tee

meathook::layer

Struct Tee 

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pub struct Tee<A, B>(pub A, pub B);
Expand description

Fan-out combinator: ingests every batch into both sinks.

Both branches are always attempted; errors are reported per branch via TeeError.

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§0: A§1: B

Trait Implementations§

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impl<R, A, B> Sink<R> for Tee<A, B>
where R: Clone + Send + 'static, A: Sink<R>, B: Sink<R>,

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type Error = TeeError<<A as Sink<R>>::Error, <B as Sink<R>>::Error>

Concrete error type (a thiserror enum, not a boxed error).
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async fn ingest( &mut self, meta: &WindowMeta, records: Vec<R>, ) -> Result<(), Self::Error>

Hand records to this layer. A buffering layer may hold them; a terminal sink ships them immediately.
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async fn flush(&mut self) -> Result<(), Self::Error>

Force-drain this layer and everything downstream (shutdown, final flush, startup recovery).

Auto Trait Implementations§

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impl<A, B> Freeze for Tee<A, B>
where A: Freeze, B: Freeze,

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impl<A, B> RefUnwindSafe for Tee<A, B>
where A: RefUnwindSafe, B: RefUnwindSafe,

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impl<A, B> Send for Tee<A, B>
where A: Send, B: Send,

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impl<A, B> Sync for Tee<A, B>
where A: Sync, B: Sync,

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impl<A, B> Unpin for Tee<A, B>
where A: Unpin, B: Unpin,

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impl<A, B> UnsafeUnpin for Tee<A, B>
where A: UnsafeUnpin, B: UnsafeUnpin,

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impl<A, B> UnwindSafe for Tee<A, B>
where A: UnwindSafe, B: UnwindSafe,

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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
where T: ?Sized,

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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
where T: ?Sized,

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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
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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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> 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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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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impl<T> PolicyExt for T
where T: ?Sized,

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fn and<P, B, E>(self, other: P) -> And<T, P>
where T: Sized + Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns Action::Follow only if self and other return Action::Follow. Read more
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fn or<P, B, E>(self, other: P) -> Or<T, P>
where T: Sized + Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns Action::Follow if either self or other returns Action::Follow. Read more
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impl<T> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

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impl<R, S> SinkExt<R> for S
where S: Sink<R>,

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fn buffered(self, policy: FlushPolicy) -> Buffered<R, Self>

Wrap self in an in-memory buffering tier.
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fn spooled( self, dir: impl Into<PathBuf>, policy: FlushPolicy, ) -> DiskSpool<R, Self>

Wrap self in a durable write-ahead spool rooted at dir. Read more
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fn tee<B: Sink<R>>(self, other: B) -> Tee<Self, B>

Fan out: every batch is ingested into both self and other.
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more