Struct LfuMeta 

pub struct LfuMeta {
    pub frequency: u64,
}

Metadata for LFU (Least Frequently Used) cache entries.

LFU tracks access frequency to evict the least frequently accessed items. The frequency counter is incremented on each access.

Examples

use cache_rs::meta::LfuMeta;

let mut meta = LfuMeta::default();
assert_eq!(meta.frequency, 0);

// Simulate access
meta.frequency += 1;
assert_eq!(meta.frequency, 1);

Fields

frequency: u64

Access frequency count. Incremented each time the entry is accessed.

Implementations

impl LfuMeta

pub fn new(frequency: u64) -> Self

Creates a new LFU metadata with the specified initial frequency.

Arguments

• frequency - Initial frequency value (usually 0 or 1)

pub fn increment(&mut self) -> u64

Increments the frequency counter and returns the new value.

Trait Implementations

impl Clone for LfuMeta

fn clone(&self) -> LfuMeta

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LfuMeta

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

Formats the value using the given formatter.

impl Default for LfuMeta

fn default() -> LfuMeta

Returns the “default value” for a type.

impl PartialEq for LfuMeta

fn eq(&self, other: &LfuMeta) -> 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 Copy for LfuMeta

impl Eq for LfuMeta

impl StructuralPartialEq for LfuMeta