[−][src]Struct timely::dataflow::operators::generic::FrontieredInputHandle
Handle to an operator's input stream and frontier.
Fields
handle: &'a mut InputHandle<T, D, P>
The underlying input handle.
frontier: &'a MutableAntichain<T>
The frontier as reported by timely progress tracking.
Methods
impl<'a, T: Timestamp, D: Data, P: Pull<Bundle<T, D>> + 'a> FrontieredInputHandle<'a, T, D, P>
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pub fn new(
handle: &'a mut InputHandle<T, D, P>,
frontier: &'a MutableAntichain<T>
) -> Self
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handle: &'a mut InputHandle<T, D, P>,
frontier: &'a MutableAntichain<T>
) -> Self
Allocate a new frontiered input handle.
pub fn next(&mut self) -> Option<(CapabilityRef<T>, RefOrMut<Vec<D>>)>
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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.
pub fn for_each<F: FnMut(CapabilityRef<T>, RefOrMut<Vec<D>>)>(
&mut self,
logic: F
)
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&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())); }); }); });
pub fn frontier(&self) -> &'a MutableAntichain<T>
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Inspect the frontier associated with this input.
Auto Trait Implementations
impl<'a, T, D, P> !Send for FrontieredInputHandle<'a, T, D, P>
impl<'a, T, D, P> !Sync for FrontieredInputHandle<'a, T, D, P>
impl<'a, T, D, P> Unpin for FrontieredInputHandle<'a, T, D, P>
impl<'a, T, D, P> !UnwindSafe for FrontieredInputHandle<'a, T, D, P>
impl<'a, T, D, P> !RefUnwindSafe for FrontieredInputHandle<'a, T, D, P>
Blanket Implementations
impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> From<T> for T
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,