Struct ParticipationInner

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pub struct ParticipationInner {
    pid: Ref<PId>,
    aid: AId,
    tracker: Weak<MemoryQuotaTracker>,
    cache: ClaimedQty,
}

Expand description

Contents of an enabled Participation

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§pid: Ref<PId>

Participant id

§aid: AId

Account id

§tracker: Weak<MemoryQuotaTracker>

The underlying tracker

§cache: ClaimedQty

Quota we have preemptively claimed for use by this Account

Has been added to PRecord.used, but not yet returned by Participation::claim.

This cache field arranges that most of the time we don’t have to hammer a single cache line.

The value here is bounded by a configured limit.

Invariants on memory accounting:

Participation.cache < configured limit
PRecord.used = Participation.cache + Σ Participation::claim - Σ P'n::release except if PRecord has been deleted (ie when we aren’t tracking any more and think the Participant is Collapsing).
Σ PRecord.used = State.total_used

Enforcement of these invariants is partially assured by types in bookkeeping.

Trait Implementations§

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impl Debug for ParticipationInner

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl UnwindSafe for ParticipationInner

Blanket Implementations§

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impl<T> Any for T
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Gets the TypeId of self. Read more

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Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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