Struct mz_timely_util::buffer::ConsolidateBuffer
source · pub struct ConsolidateBuffer<'a, 'b, T, D, R: Semigroup, P>{ /* private fields */ }
Expand description
A buffer that consolidates updates
The buffer implements a wrapper around OutputHandle consolidating elements pushed to it. It is backed by a capacity-limited buffer, which means that compaction only occurs within the dimensions of the buffer, i.e. the number of unique keys is less than half of the buffer’s capacity.
A cap is retained whenever the current time changes to be able to flush on drop or when the time changes again.
The buffer is filled with updates until it reaches its capacity. At this point, the updates are consolidated to free up space. This process repeats until the consolidation recovered less than half of the buffer’s capacity, at which point the buffer will be shipped.
The buffer retains a capability to send data on flush. It will flush all data once dropped, if time changes, or if the buffer capacity is reached.
Implementations§
source§impl<'a, 'b, T, D: Data, R: Semigroup, P> ConsolidateBuffer<'a, 'b, T, D, R, P>
impl<'a, 'b, T, D: Data, R: Semigroup, P> ConsolidateBuffer<'a, 'b, T, D, R, P>
sourcepub fn new(
output_handle: &'b mut OutputHandle<'a, T, (D, T, R), P>,
port: usize
) -> Self
pub fn new( output_handle: &'b mut OutputHandle<'a, T, (D, T, R), P>, port: usize ) -> Self
Create a new ConsolidateBuffer, wrapping the provided session.
output_handle
: The output to send data to.- ‘port’: The output port to retain capabilities for.
sourcepub fn give_iterator<I: Iterator<Item = (D, T, R)>>(
&mut self,
cap: &InputCapability<T>,
iter: I
)
pub fn give_iterator<I: Iterator<Item = (D, T, R)>>( &mut self, cap: &InputCapability<T>, iter: I )
Provides an iterator of elements to the buffer
sourcepub fn give(&mut self, cap: &InputCapability<T>, data: (D, T, R))
pub fn give(&mut self, cap: &InputCapability<T>, data: (D, T, R))
Give an element to the buffer
sourcepub fn give_at(&mut self, cap: &Capability<T>, data: (D, T, R))
pub fn give_at(&mut self, cap: &Capability<T>, data: (D, T, R))
Give an element to the buffer, using a pre-fabricated capability. Note that the capability must be valid for the associated output.
Trait Implementations§
Auto Trait Implementations§
impl<'a, 'b, T, D, R, P> Freeze for ConsolidateBuffer<'a, 'b, T, D, R, P>where
T: Freeze,
impl<'a, 'b, T, D, R, P> !RefUnwindSafe for ConsolidateBuffer<'a, 'b, T, D, R, P>
impl<'a, 'b, T, D, R, P> !Send for ConsolidateBuffer<'a, 'b, T, D, R, P>
impl<'a, 'b, T, D, R, P> !Sync for ConsolidateBuffer<'a, 'b, T, D, R, P>
impl<'a, 'b, T, D, R, P> Unpin for ConsolidateBuffer<'a, 'b, T, D, R, P>
impl<'a, 'b, T, D, R, P> !UnwindSafe for ConsolidateBuffer<'a, 'b, T, D, R, P>
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
source§impl<R, O, T> CopyOnto<ConsecutiveOffsetPairs<R, O>> for T
impl<R, O, T> CopyOnto<ConsecutiveOffsetPairs<R, O>> for T
source§fn copy_onto(
self,
target: &mut ConsecutiveOffsetPairs<R, O>
) -> <ConsecutiveOffsetPairs<R, O> as Region>::Index
fn copy_onto( self, target: &mut ConsecutiveOffsetPairs<R, O> ) -> <ConsecutiveOffsetPairs<R, O> as Region>::Index
source§impl<T> FutureExt for T
impl<T> FutureExt for T
source§fn with_context(self, otel_cx: Context) -> WithContext<Self>
fn with_context(self, otel_cx: Context) -> WithContext<Self>
source§fn with_current_context(self) -> WithContext<Self>
fn with_current_context(self) -> WithContext<Self>
source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
source§impl<T> IntoRequest<T> for T
impl<T> IntoRequest<T> for T
source§fn into_request(self) -> Request<T>
fn into_request(self) -> Request<T>
T
in a tonic::Request