Struct LruLocalStore 

pub struct LruLocalStore { /* private fields */ }

The default LRU store.

Implementations

impl LruLocalStore

pub fn new(capacity: NonZeroUsize) -> Self

A store holding at most capacity entries. Capacity must be positive; storage is allocated as entries arrive rather than for the full limit.

pub fn len(&self) -> usize

Entries currently held, expired ones included until a read removes them.

pub fn is_empty(&self) -> bool

Whether no entries are held.

Trait Implementations

impl Debug for LruLocalStore

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

Formats the value using the given formatter.

impl LocalStore for LruLocalStore

fn get(&mut self, key: &str, now_ms: i64) -> Result<LocalRead, BoxError>

Read one key. A live entry is promoted and returned; an expired entry is removed without promotion and handed back so the cache can drop it outside its lock.

fn put( &mut self, key: String, entry: LocalEntry, ) -> Result<Option<LocalEntry>, BoxError>

Insert or replace an entry, promoting it and evicting at capacity. Returns the displaced entry (the replaced value or the evicted tail), which the cache drops outside its lock.