Struct WithLruTimestamp 

pub struct WithLruTimestamp<T> { /* private fields */ }

A wrapper around a T cache value that maintains a timestamp for use with LRU cache replacement policies.

Provides Deref[Mut] and As{Ref,Mut} implementations, so it is easy to drop in with minimal source changes.

You can recover ownership of the inner T value via WithLruTimestamp::into_inner(x) once a value has been removed from the cache.

Example

use associative_cache::*;

let cache = AssociativeCache::<
    String,
    // Wrap your cache value in `WithLruTimestamp`...
    WithLruTimestamp<usize>,
    Capacity128,
    HashEightWay,
    // ... and take advantage of LRU cache replacement!
    LruReplacement,
>::default();

Implementations

impl<T> WithLruTimestamp<T>

pub fn new(inner: T) -> WithLruTimestamp<T>

Construct a new WithLruTimestamp wrapper around an inner value.

Example

use associative_cache::*;

let inner = "hello!".to_string();
let outer = WithLruTimestamp::new(inner);

pub fn into_inner(outer: WithLruTimestamp<T>) -> T

Recover the inner T value by consuming a WithLruTimestamp<T>.

Example

use associative_cache::*;

let outer = WithLruTimestamp::new("hello!".to_string());
let inner = WithLruTimestamp::into_inner(outer);
assert_eq!(inner, "hello!");

Trait Implementations

impl<T> AsMut<T> for WithLruTimestamp<T>

fn as_mut(&mut self) -> &mut T

Converts this type into a mutable reference of the (usually inferred) input type.

impl<T> AsRef<T> for WithLruTimestamp<T>

fn as_ref(&self) -> &T

Converts this type into a shared reference of the (usually inferred) input type.

impl<T: Clone> Clone for WithLruTimestamp<T>

fn clone(&self) -> WithLruTimestamp<T>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T: Debug> Debug for WithLruTimestamp<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T> Default for WithLruTimestamp<T>

where T: Default,

fn default() -> Self

Returns the “default value” for a type.

impl<T> Deref for WithLruTimestamp<T>

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &T

Dereferences the value.

impl<T> DerefMut for WithLruTimestamp<T>

fn deref_mut(&mut self) -> &mut T

Mutably dereferences the value.

impl<T> From<T> for WithLruTimestamp<T>

fn from(inner: T) -> WithLruTimestamp<T>

Converts to this type from the input type.

impl<T> LruTimestamp for WithLruTimestamp<T>

type Timestamp<'a> = &'a Cell<Instant> where T: 'a

The timestamp type that will be compared.

fn get_timestamp(&self) -> Self::Timestamp<'_>

Get this cache value’s timestamp.

fn update_timestamp(&self)

Update this cache value’s timestamp.

impl<T: Ord> Ord for WithLruTimestamp<T>

fn cmp(&self, other: &WithLruTimestamp<T>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl<T: PartialEq> PartialEq for WithLruTimestamp<T>

fn eq(&self, other: &WithLruTimestamp<T>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T: PartialOrd> PartialOrd for WithLruTimestamp<T>

fn partial_cmp(&self, other: &WithLruTimestamp<T>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl<T: Eq> Eq for WithLruTimestamp<T>

impl<T> StructuralPartialEq for WithLruTimestamp<T>