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MemoryCache

Struct MemoryCache 

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pub struct MemoryCache { /* private fields */ }
Expand description

Thread-safe in-memory discovery cache.

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impl MemoryCache

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pub fn new(options: CacheOptions) -> Self

Create a new memory cache with the given options.

If mode is CacheMode::Disabled, get always returns None and put is a no-op.

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pub fn len(&self) -> Result<usize, PathError>

Number of entries currently stored (for tests).

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pub fn is_empty(&self) -> Result<bool, PathError>

Returns true if the cache is empty.

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impl Debug for MemoryCache

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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 DiscoveryCache for MemoryCache

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fn get(&self, key: &CacheKey) -> Result<Option<CacheValue>, PathError>

Get a cached value by key.
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fn put(&self, key: CacheKey, value: CacheValue) -> Result<(), PathError>

Store a value.
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fn invalidate(&self, root: &Path) -> Result<(), PathError>

Invalidate all keys whose root equals or is under root.
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fn clear(&self) -> Result<(), PathError>

Clear the entire cache.

Auto Trait Implementations§

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<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 = 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.