Trait LocalStore 

pub trait LocalStore: Send + 'static {
    // Required methods
    fn get(&mut self, key: &str, now_ms: i64) -> Result<LocalRead, BoxError>;
    fn put(
        &mut self,
        key: String,
        entry: LocalEntry,
    ) -> Result<Option<LocalEntry>, BoxError>;
}

Process-local storage for one cache instance.

The default LruLocalStore evicts the least recently used entry at capacity regardless of its remaining TTL, checks expiry lazily on read against whole elapsed milliseconds, promotes on read and write, and never renews a TTL on read. Implementations must preserve those rules.

Required Methods

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.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl LocalStore for LruLocalStore