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PulseTree

Struct PulseTree 

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pub struct PulseTree { /* private fields */ }
Expand description

Owns the root of a tracked operation. Workers borrow it or use share(). Finish after joining workers. Dropping this owner freezes abandonment even when non-owning shared views remain alive.

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impl PulseTree

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pub fn new(phase: Phase, stop: impl Stop + 'static) -> Self

Track a phase with a shared cancellation policy.

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pub fn observer(&self) -> Observer

Observe the root, including after its owner finishes.

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pub fn id(&self) -> NodeId

The root’s stable identity.

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pub fn finish(self, outcome: Outcome) -> Result<(), PlanError>

Finish the root after workers and children join. On error it is abandoned.

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impl Complete for PulseTree

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fn complete_as(self, outcome: Outcome)

Record an explicitly chosen outcome, resolving unfinished observations. Join workers before calling this. Started but uncompleted children are abandoned; untouched children are skipped on success, not run on error.
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fn complete<T, E>(self, result: Result<T, E>) -> Result<T, E>
where E: AsStopReason,

Classify the error with AsStopReason, record completion, and return the original result. Read more
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fn complete_classified<T, E>( self, result: Result<T, E>, is_stop: impl FnOnce(&E) -> bool, ) -> Result<T, E>

Complete with an explicit classifier, for a foreign error type that Rust’s orphan rules keep from implementing AsStopReason.
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fn complete_with<T, E>( self, body: impl FnOnce(&mut Self) -> Result<T, E>, ) -> Result<T, E>
where E: AsStopReason,

Run a multi-step body with this owner, then complete the owner with the body’s result and return that result unchanged. Read more
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fn complete_with_classified<T, E>( self, is_stop: impl FnOnce(&E) -> bool, body: impl FnOnce(&mut Self) -> Result<T, E>, ) -> Result<T, E>

complete_with with an explicit classifier, for a foreign error type that cannot implement AsStopReason, such as an error wrapped with its source location.
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impl Debug for PulseTree

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Pulse for PulseTree

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fn split( &self, e: Execution, parts: &[PhaseSpec<'_>], ) -> Result<Vec<Child<'_>>, PlanError>

Split this phase into weighted children, in declared order. Read more
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fn start(&self) -> Result<(), PlanError>

Mark this phase running, without counting or ending planning. Implementations without lifecycle observations may ignore this.
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fn set_total(&self, total: Total) -> Result<(), PlanError>

Revise a leaf’s denominator without changing completed units or weights. Unsupported implementations return an error instead of losing the update.
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fn share(&self) -> Result<SharedPulse, PlanError>

Share all pulse capabilities with owned work, but never completion rights. Read more
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fn record_issue(&self, _error: PlanError)

Record a reporting-protocol problem for optional diagnostics. This never changes cancellation or the operation’s return value. Ordinary sinks may ignore it; diagnostic wrappers retain bounded evidence.
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impl Report for PulseTree

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fn advance(&self, n: u64)

Add completed finished units.
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fn may_report(&self) -> bool

Whether reports have any effect. Read more
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impl Stop for PulseTree

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fn check(&self) -> Result<(), StopReason>

Check if the operation should stop. Read more
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fn may_stop(&self) -> bool

Returns true if this stop can ever signal a stop. Read more
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fn should_stop(&self) -> bool

Returns true if the operation should stop. Read more

Auto Trait Implementations§

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> ProgressExt for T
where T: Stop + Report + ?Sized,

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fn step(&self, completed: u64) -> Result<(), StopReason>

Count completed finished units, then check for cancellation. Read more
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fn live(&self) -> Option<&Self>

The live pulse: this value, or None when it can neither stop nor report. Read more
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fn split_array<const N: usize>( &self, execution: Execution, parts: [PhaseSpec<'_>; N], ) -> Result<[Child<'_>; N], PlanError>
where Self: Pulse,

Pulse::split into exactly N children, returned as an array. Read more
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impl<T> ReportExt for T
where T: Report + ?Sized,

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fn batched(self, threshold: NonZeroU64) -> Batch<Self>
where Self: Sized,

Buffer one worker’s reports, publishing them in batches of at least threshold units, and the remainder on Batch::flush or drop. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = !

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

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.