pub struct InputHandleCore<T: Timestamp, D: Container, P: Pull<BundleCore<T, D>>> { /* private fields */ }
Expand description

Handle to an operator’s input stream.

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impl<'a, T: Timestamp, D: Container, P: Pull<BundleCore<T, D>>> InputHandleCore<T, D, P>

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pub fn next(&mut self) -> Option<(InputCapability<T>, RefOrMut<'_, D>)>

Reads the next input buffer (at some timestamp t) and a corresponding capability for t. The timestamp t of the input buffer can be retrieved by invoking .time() on the capability. Returns None when there’s no more data available.

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pub fn for_each<F: FnMut(InputCapability<T>, RefOrMut<'_, D>)>( &mut self, logic: F )

Repeatedly calls logic till exhaustion of the available input data. logic receives a capability and an input buffer.

Examples
use timely::dataflow::operators::ToStream;
use timely::dataflow::operators::generic::Operator;
use timely::dataflow::channels::pact::Pipeline;

timely::example(|scope| {
    (0..10).to_stream(scope)
           .unary(Pipeline, "example", |_cap, _info| |input, output| {
               input.for_each(|cap, data| {
                   output.session(&cap).give_vec(&mut data.replace(Vec::new()));
               });
           });
});

Auto Trait Implementations§

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impl<T, D, P> !RefUnwindSafe for InputHandleCore<T, D, P>

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impl<T, D, P> !Send for InputHandleCore<T, D, P>

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impl<T, D, P> !Sync for InputHandleCore<T, D, P>

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impl<T, D, P> Unpin for InputHandleCore<T, D, P>
where D: Unpin, P: Unpin,

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impl<T, D, P> !UnwindSafe for InputHandleCore<T, D, P>

Blanket Implementations§

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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<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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impl<T> PushInto<Vec<T>> for T

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fn push_into(self, target: &mut Vec<T>)

Push self into the target container.
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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.