Struct memory_cache::MemoryLruCache

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pub struct MemoryLruCache<K: Eq + Hash, V> { /* private fields */ }

Expand description

An LRU-cache which operates on memory used.

Implementations

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impl<K: Eq + Hash, V: MallocSizeOf> MemoryLruCache<K, V>

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pub fn new(max_size: usize) -> Self

Create a new cache with a maximum size in bytes.

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pub fn insert(&mut self, key: K, val: V)

Insert an item.

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

Get a reference to an item in the cache. It is a logic error for its heap size to be altered while borrowed.

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pub fn current_size(&self) -> usize

Currently-used size of values in bytes.

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pub fn backstore(&self) -> &LruCache<K, V>

Get backing LRU cache instance (read only)

Auto Trait Implementations

impl<K, V> RefUnwindSafe for MemoryLruCache<K, V> where
K: RefUnwindSafe,
V: RefUnwindSafe,

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

impl<K, V> Sync for MemoryLruCache<K, V> where
K: Sync,
V: Sync,

impl<K, V> Unpin for MemoryLruCache<K, V>

impl<K, V> UnwindSafe for MemoryLruCache<K, V> where
K: RefUnwindSafe,
V: RefUnwindSafe,

Blanket Implementations

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

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pub 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,

const: unstable · source

pub 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,

const: unstable · source

pub 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

const: unstable · source

pub fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T where
U: From<T>,

const: unstable · source

pub 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 for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

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impl<V, T> VZip<V> for T where
V: MultiLane<T>,

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Struct memory_cache::MemoryLruCache

Implementations

impl<K: Eq + Hash, V: MallocSizeOf> MemoryLruCache<K, V>

pub fn new(max_size: usize) -> Self

pub fn insert(&mut self, key: K, val: V)

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

pub fn current_size(&self) -> usize

pub fn backstore(&self) -> &LruCache<K, V>

Auto Trait Implementations

impl<K, V> RefUnwindSafe for MemoryLruCache<K, V> where
K: RefUnwindSafe,
V: RefUnwindSafe,

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

impl<K, V> Sync for MemoryLruCache<K, V> where
K: Sync,
V: Sync,

impl<K, V> Unpin for MemoryLruCache<K, V>

impl<K, V> UnwindSafe for MemoryLruCache<K, V> where
K: RefUnwindSafe,
V: RefUnwindSafe,

Blanket Implementations

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

pub fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where
T: ?Sized,

pub fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where
T: ?Sized,

pub fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

pub fn from(t: T) -> T

impl<T, U> Into<U> for T where
U: From<T>,

pub fn into(self) -> U

impl<T, U> TryFrom<U> for T where
U: Into<T>,

type Error = Infallible

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<V, T> VZip<V> for T where
V: MultiLane<T>,

pub fn vzip(self) -> V

Struct memory_cache::MemoryLruCache

Implementations

impl<K: Eq + Hash, V: MallocSizeOf> MemoryLruCache<K, V>

pub fn new(max_size: usize) -> Self

pub fn insert(&mut self, key: K, val: V)

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

pub fn current_size(&self) -> usize

pub fn backstore(&self) -> &LruCache<K, V>

Auto Trait Implementations

impl<K, V> RefUnwindSafe for MemoryLruCache<K, V> where K: RefUnwindSafe, V: RefUnwindSafe,

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

impl<K, V> Sync for MemoryLruCache<K, V> where K: Sync, V: Sync,

impl<K, V> Unpin for MemoryLruCache<K, V>

impl<K, V> UnwindSafe for MemoryLruCache<K, V> where K: RefUnwindSafe, V: RefUnwindSafe,

Blanket Implementations

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

pub fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

pub fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

pub fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

pub fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

pub fn into(self) -> U

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<V, T> VZip<V> for T where V: MultiLane<T>,

pub fn vzip(self) -> V

impl<K, V> RefUnwindSafe for MemoryLruCache<K, V> where
K: RefUnwindSafe,
V: RefUnwindSafe,

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

impl<K, V> Sync for MemoryLruCache<K, V> where
K: Sync,
V: Sync,

impl<K, V> UnwindSafe for MemoryLruCache<K, V> where
K: RefUnwindSafe,
V: RefUnwindSafe,

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

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

impl<V, T> VZip<V> for T where
V: MultiLane<T>,