object_store::layers

Struct LruCacheLayer

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pub struct LruCacheLayer<C: Access> {
    read_cache: ReadCache<C>,
}
Expand description

An opendal layer with local LRU file cache supporting.

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§read_cache: ReadCache<C>

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impl<C: Access> LruCacheLayer<C>

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pub fn new(file_cache: Arc<C>, capacity: usize) -> Result<Self>

Create a LruCacheLayer with local file cache and capacity in bytes.

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pub async fn recover_cache(&self, sync: bool)

Recovers cache

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pub async fn contains_file(&self, path: &str) -> bool

Returns true when the local cache contains the specific file

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pub async fn read_cache_stat(&self) -> (u64, u64)

Returns the read cache statistics info (EntryCount, SizeInBytes).

Trait Implementations§

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impl<C: Access> Clone for LruCacheLayer<C>

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fn clone(&self) -> Self

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<I: Access, C: Access> Layer<I> for LruCacheLayer<C>

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type LayeredAccess = LruCacheAccess<I, C>

The layered accessor that returned by this layer.
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fn layer(&self, inner: I) -> Self::LayeredAccess

Intercept the operations on the underlying storage.

Auto Trait Implementations§

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impl<C> Freeze for LruCacheLayer<C>

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impl<C> !RefUnwindSafe for LruCacheLayer<C>

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impl<C> Send for LruCacheLayer<C>

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impl<C> Sync for LruCacheLayer<C>

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impl<C> Unpin for LruCacheLayer<C>

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impl<C> !UnwindSafe for LruCacheLayer<C>

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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. 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> FromRef<T> for T
where T: Clone,

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fn from_ref(input: &T) -> T

Converts to this type from a reference to the input type.
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impl<T> FromRef<T> for T
where T: Clone,

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fn from_ref(input: &T) -> T

Converts to this type from a reference to the input type.
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impl<T> FutureExt for T

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fn with_context(self, otel_cx: Context) -> WithContext<Self>

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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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Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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fn into_request(self) -> Request<T>

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impl<T> IntoRequest<T> for T

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fn into_request(self) -> Request<T>

Wrap the input message T in a tonic::Request
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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. 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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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for 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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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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