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LruCache

termivar_scanner::cache

Struct LruCache 

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pub struct LruCache<K, V> { /* private fields */ }
Expand description

A process-local, bounded least-recently-used cache with TTL expiration.

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impl<K: Eq + Hash + Clone, V: Clone> LruCache<K, V>

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pub fn new(max_size: usize) -> Self

Creates an empty cache using a monotonic process clock.

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pub fn insert(&self, key: K, value: V, ttl_secs: u64)

Inserts or replaces a value with a TTL measured from this call.

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pub fn get(&self, key: &K) -> Option<V>

Returns an unexpired value and records this lookup as the latest access.

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pub fn remove(&self, key: &K) -> bool

Removes a key.

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pub fn clear(&self)

Clears all entries without changing accumulated statistics.

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pub fn stats(&self) -> CacheStats

Returns a point-in-time statistics snapshot.

Auto Trait Implementations§

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impl<K, V> !Freeze for LruCache<K, V>

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impl<K, V> !RefUnwindSafe for LruCache<K, V>

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impl<K, V> !UnwindSafe for LruCache<K, V>

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impl<K, V> Send for LruCache<K, V>
where K: Send, V: Send,

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impl<K, V> Sync for LruCache<K, V>
where K: Send, V: Send,

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impl<K, V> Unpin for LruCache<K, V>
where K: Unpin, V: Unpin,

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impl<K, V> UnsafeUnpin for LruCache<K, V>

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<'a, T, E> AsTaggedExplicit<'a, E> for T
where T: 'a,

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fn explicit(self, class: Class, tag: u32) -> TaggedParser<'a, Explicit, Self, E>

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impl<'a, T, E> AsTaggedImplicit<'a, E> for T
where T: 'a,

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fn implicit( self, class: Class, constructed: bool, tag: u32, ) -> TaggedParser<'a, Implicit, Self, E>

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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<A, B, T> HttpServerConnExec<A, B> for T
where B: Body,

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self> ⓘ

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self> ⓘ

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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> PolicyExt for T
where T: ?Sized,

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fn and<P, B, E>(self, other: P) -> And<T, P>
where T: Sized + Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns [Action::Follow] only if self and other return Action::Follow. Read more
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fn or<P, B, E>(self, other: P) -> Or<T, P>
where T: Sized + Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns [Action::Follow] if either self or other returns Action::Follow. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

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

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.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> ⓘ
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self> ⓘ

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