Struct LruCacheWithTtl

pub struct LruCacheWithTtl<K: Clone + Debug + Hash + Eq, V: Clone + Debug + Send + Sync> { /* private fields */ }

Implementations

impl<K: Clone + Debug + Hash + Eq + Send + Sync + Debug + 'static, V: Clone + Debug + Send + Sync + 'static> LruCacheWithTtl<K, V>

pub fn new<S: Into<String>>(name: S, capacity: usize) -> Self

pub fn set_retry_on_sema_timeout(&self, value: bool)

pub fn set_sema_timeout(&self, duration: Duration)

pub fn clear(&self) -> usize

pub async fn lookup<Q>(&self, name: &Q) -> Option<ItemLookup<V>>

where K: Borrow<Q>, Q: Hash + Eq + ?Sized,

pub async fn get<Q>(&self, name: &Q) -> Option<V>

where K: Borrow<Q>, Q: Hash + Eq + ?Sized,

pub async fn insert(&self, name: K, item: V, expiration: Instant) -> V

pub async fn get_or_try_insert<E: Into<Error>, TTL: FnOnce(&V) -> Duration>( &self, name: &K, ttl_func: TTL, fut: impl Future<Output = Result<V, E>>, ) -> Result<ItemLookup<V>, Arc<Error>>

Get an existing item, but if that item doesn’t already exist, execute the future fut to provide a value that will be inserted and then returned. This is done atomically wrt. other callers. The TTL parameter is a function that can extract the TTL from the value type, or just return a constant TTL.