Struct OpenEntry

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pub(crate) struct OpenEntry<C> {
    spec: SupportedCircUsage,
    circ: Arc<C>,
    expiration: ExpirationInfo,
}
Expand description

An entry for an open circuit held by an AbstractCircMgr.

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§spec: SupportedCircUsage

The supported usage for this circuit.

§circ: Arc<C>

The circuit under management.

§expiration: ExpirationInfo

When does this circuit expire?

(Note that expired circuits are removed from the manager, which does not actually close them until there are no more references to them.)

Implementations§

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impl<C: AbstractCirc> OpenEntry<C>

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fn new( spec: SupportedCircUsage, circ: Arc<C>, expiration: ExpirationInfo, ) -> Self

Make a new OpenEntry for a given circuit and spec.

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pub(crate) fn supports(&self, usage: &TargetCircUsage) -> bool

Return true if this circuit can be used for usage.

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fn restrict_mut(&mut self, usage: &TargetCircUsage, now: Instant) -> Result<()>

Change this circuit’s permissible usage, based on its having been used for usage at time now.

Return an error if this circuit may not be used for usage.

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fn find_best<'a>( ents: &'a mut [&'a mut Self], usage: &TargetCircUsage, parallelism: usize, ) -> &'a mut Self

Find the “best” entry from a slice of OpenEntry for supporting a given usage.

If parallelism is some N greater than 1, we pick randomly from the best N circuits.

§Requirements

Requires that ents is nonempty, and that every element of ents supports spec.

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fn should_expire(&self, unused_cutoff: Instant, dirty_cutoff: Instant) -> bool

Return true if this circuit has been marked as dirty before dirty_cutoff, or if it is an unused circuit set to expire before unused_cutoff.

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impl<C: Clone> Clone for OpenEntry<C>

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fn clone(&self) -> OpenEntry<C>

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

Performs copy-assignment from source. Read more
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impl<C: Debug> Debug for OpenEntry<C>

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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<C> Freeze for OpenEntry<C>

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impl<C> !RefUnwindSafe for OpenEntry<C>

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impl<C> Send for OpenEntry<C>
where C: Sync + Send,

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impl<C> Sync for OpenEntry<C>
where C: Sync + Send,

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impl<C> Unpin for OpenEntry<C>

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impl<C> !UnwindSafe for OpenEntry<C>

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