Struct DefaultLifecycle 

pub struct DefaultLifecycle<Key, Val>(/* private fields */);

Default Lifecycle for a sync cache.

Stashes up to two evicted items for dropping them outside the cache locks.

Trait Implementations

impl<Key, Val> Clone for DefaultLifecycle<Key, Val>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<Key, Val> Debug for DefaultLifecycle<Key, Val>

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

Formats the value using the given formatter.

impl<Key, Val> Default for DefaultLifecycle<Key, Val>

fn default() -> Self

Returns the “default value” for a type.

impl<Key, Val> Lifecycle<Key, Val> for DefaultLifecycle<Key, Val>

type RequestState = [Option<(Key, Val)>; 2]

Per-request accumulator threaded through the eviction hooks.

fn on_evict(&self, state: &mut Self::RequestState, key: Key, val: Val)

Called when an item is evicted.

fn is_pinned(&self, key: &Key, val: &Val) -> bool

Returns whether the item is pinned. Items that are pinned can’t be evicted. Note that a pinned item can still be replaced with get_mut, insert, replace and similar APIs.

fn before_evict(&self, state: &mut Self::RequestState, key: &Key, val: &mut Val)

Called when a cache item is about to be evicted. Note that value replacement (e.g. insertions for the same key) won’t call this method.

fn on_evict_cold(&self, state: &mut Self::RequestState, key: Key, val: Val)

Called when an item is evicted from the cold queue.

fn on_evict_hot(&self, state: &mut Self::RequestState, key: Key, val: Val)

Called when an item is evicted from the hot queue.