Struct tor_circmgr::mgr::OpenEntry

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

An entry for an open circuit held by an AbstractCircMgr.

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§spec: S

Current AbstractCircSpec for this circuit’s permitted usages.

§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<S: AbstractSpec, C: AbstractCirc> OpenEntry<S, C>

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

Make a new OpenEntry for a given circuit and spec.

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fn supports(&self, usage: &<S as AbstractSpec>::Usage) -> bool

Return true if this circuit can be used for usage.

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fn restrict_mut( &mut self, usage: &<S as AbstractSpec>::Usage, 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: &<S as AbstractSpec>::Usage, 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.

Trait Implementations§

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

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

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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impl<S: Debug, C: Debug> Debug for OpenEntry<S, C>

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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<S: PartialEq, C: PartialEq> PartialEq for OpenEntry<S, C>

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fn eq(&self, other: &OpenEntry<S, C>) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<S: Eq, C: Eq> Eq for OpenEntry<S, C>

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impl<S, C> StructuralPartialEq for OpenEntry<S, C>

Auto Trait Implementations§

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impl<S, C> Freeze for OpenEntry<S, C>
where S: Freeze,

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impl<S, C> RefUnwindSafe for OpenEntry<S, C>

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

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

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impl<S, C> Unpin for OpenEntry<S, C>
where S: Unpin,

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impl<S, C> UnwindSafe for OpenEntry<S, C>

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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Gets the TypeId of self. Read more
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where T: ?Sized,

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Immutably borrows from an owned value. Read more
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Mutably borrows from an owned value. Read more
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