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SchedulerOutcome

Enum SchedulerOutcome 

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pub enum SchedulerOutcome {
    Quiescent,
    ParkingDeferred,
    OwnerWorkPending,
    Decision(ScheduleDecision),
}
Expand description

Result of one bounded scheduler safe point.

This type deliberately keeps lifecycle deferral and bounded owner work separate from a scheduling decision. Callers must not infer either state from a boolean need_resched value or an absent decision.

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Quiescent

No context switch or owner-only work remains from this pass.

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ParkingDeferred

The current thread owns an in-flight park token and must finish it.

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OwnerWorkPending

One bounded owner batch completed, with more work retained.

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Decision(ScheduleDecision)

The scheduler selected a next thread.

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impl SchedulerOutcome

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pub const fn decision(&self) -> Option<&ScheduleDecision>

Returns the scheduler decision, if this pass selected a thread.

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pub const fn parking_deferred(&self) -> bool

Returns whether the caller must finish a pending park handshake before scheduler task-work callbacks may execute.

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pub const fn owner_work_pending(&self) -> bool

Returns whether more owner-only work remains for a later bounded safe point.

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impl Debug for SchedulerOutcome

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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<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, 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.