NodeCache

llkv_btree::node_cache

Struct NodeCache 

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pub struct NodeCache<P>
where
    P: Pager,
    P::Page: Clone,
    P::Id: Clone + Eq + Hash,
{ /* private fields */ }

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impl<P> NodeCache<P>
where P: Pager, P::Page: Clone, P::Id: Clone + Eq + Hash,

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pub fn new(cap: usize, _unused: usize) -> Self

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pub fn peek(&self, id: &P::Id) -> Option<P::Page>

Return a clone of the cached page without mutating LRU state.

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pub fn touch(&mut self, id: &P::Id)

Promote an entry to MRU if it exists (no-op if missing).

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pub fn set_limits(&mut self, read_cap: usize, _sweep_factor: usize)

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pub fn get(&mut self, id: &P::Id) -> Option<P::Page>

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pub fn insert(&mut self, id: P::Id, page: P::Page)

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pub fn invalidate(&mut self, id: &P::Id)

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pub fn clear(&mut self)

Trait Implementations§

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impl<P> Default for NodeCache<P>
where P: Pager, P::Page: Clone, P::Id: Clone + Eq + Hash,

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fn default() -> Self

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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impl<P> Freeze for NodeCache<P>
where <P as Pager>::Id: Sized + Freeze, <P as Pager>::Page: Sized,

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impl<P> RefUnwindSafe for NodeCache<P>
where <P as Pager>::Id: Sized + RefUnwindSafe, <P as Pager>::Page: Sized + RefUnwindSafe,

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impl<P> Send for NodeCache<P>
where <P as Pager>::Id: Sized + Send, <P as Pager>::Page: Sized + Send,

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impl<P> Sync for NodeCache<P>
where <P as Pager>::Id: Sized + Sync, <P as Pager>::Page: Sized + Sync,

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impl<P> Unpin for NodeCache<P>
where <P as Pager>::Id: Sized + Unpin, <P as Pager>::Page: Sized + Unpin,

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impl<P> UnwindSafe for NodeCache<P>
where <P as Pager>::Id: Sized + UnwindSafe, <P as Pager>::Page: Sized + UnwindSafe,

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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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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, 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.