Struct mz_compute::arrangement::manager::TraceBundle

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pub struct TraceBundle {
    oks: SpecializedTraceHandle,
    errs: PaddedTrace<TraceAgent<Spine<Rc<OrdKeyBatch<MzStack<((DataflowError, ()), Timestamp, Diff)>>>>>>,
    to_drop: Option<Rc<dyn Any>>,
}
Expand description

Bundles together traces for the successful computations (oks), the failed computations (errs), additional tokens that should share the lifetime of the bundled traces (to_drop).

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§oks: SpecializedTraceHandle§errs: PaddedTrace<TraceAgent<Spine<Rc<OrdKeyBatch<MzStack<((DataflowError, ()), Timestamp, Diff)>>>>>>§to_drop: Option<Rc<dyn Any>>

Implementations§

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impl TraceBundle

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pub fn new<O, E>(oks: O, errs: E) -> TraceBundle
where O: Into<SpecializedTraceHandle>, E: Into<PaddedTrace<TraceAgent<Spine<Rc<OrdKeyBatch<MzStack<((DataflowError, ()), Timestamp, Diff)>>>>>>>,

Constructs a new trace bundle out of an oks trace and errs trace.

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pub fn with_drop<T>(self, to_drop: T) -> TraceBundle
where T: 'static,

Adds tokens to be dropped when the trace bundle is dropped.

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pub fn oks_mut(&mut self) -> &mut SpecializedTraceHandle

Returns a mutable reference to the oks trace.

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pub fn errs_mut( &mut self, ) -> &mut PaddedTrace<TraceAgent<Spine<Rc<OrdKeyBatch<MzStack<((DataflowError, ()), Timestamp, Diff)>>>>>>

Returns a mutable reference to the errs trace.

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pub fn to_drop(&self) -> &Option<Rc<dyn Any>>

Returns a reference to the to_drop tokens.

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pub fn compaction_frontier(&mut self) -> Antichain<Timestamp>

Returns the frontier up to which the traces have been allowed to compact.

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pub fn into_padded(self) -> Self

Turns this trace bundle into a padded version that reports empty data for all times less than the traces’ current logical compaction frontier.

Note that the padded bundle represents a different TVC than the original one, it is unsound to use it to “uncompact” an existing TVC. The only valid use of the padded bundle is to initializa a new TVC.

Trait Implementations§

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impl Clone for TraceBundle

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fn clone(&self) -> TraceBundle

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

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