Struct Multi Consumer LruCache &nbsp; Copy item path

impl<K, V, L, S> MultiConsumerLruCache<K, V, L, S>
where K: Hash + Eq + Debug, L: Limiter<K, V>,

pub fn queue(&mut self, key: K, sender: S) -> bool

Adds the sender to the queue for the given key.

Returns true if this is the first queued sender for the key

pub fn remove(&mut self, key: &K) -> Option<Vec<S>>
where V: InMemorySize,

Remove consumers for a given key, this will also remove the key from the cache.

pub fn get(&mut self, key: &K) -> Option<&mut V>

Returns a reference to the value for a given key and promotes that element to be the most recently used.

pub fn insert<'a>( &mut self, key: <L as Limiter<K, V>>::KeyToInsert<'a>, value: V, ) -> bool
where <L as Limiter<K, V>>::KeyToInsert<'a>: Hash + PartialEq<K>, V: InMemorySize,

Inserts a new element into the map.

Can fail if the element is rejected by the limiter or if we fail to grow an empty map.

See [LruMap::insert] for more info.

pub fn shrink_to(&mut self, min_capacity: usize)

Shrinks the capacity of the queue with a lower limit.

pub fn update_cached_metrics(&mut self) -> bool

Publishes the cached count and memory usage gauges if either changed since the last call.

Returns whether the gauges were written, so lookups that only hit the cache cost nothing.

impl<K, V, S> MultiConsumerLruCache<K, V, ByLength, S>
where K: Hash + Eq,

pub fn new( max_len: u32, cache_id: &str, ) -> MultiConsumerLruCache<K, V, ByLength, S>

Creates a new empty map with a given max_len and metric label.

Trait Implementations§

impl<K, V, L, S> Debug for MultiConsumerLruCache<K, V, L, S>
where K: Hash + Eq, L: Limiter<K, V>,

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

impl<K, V, L, S> !RefUnwindSafe for MultiConsumerLruCache<K, V, L, S>

impl<K, V, L, S> !UnwindSafe for MultiConsumerLruCache<K, V, L, S>

impl<K, V, L, S> Freeze for MultiConsumerLruCache<K, V, L, S>
where LruMap<K, V, L>: Freeze, HashMap<K, Vec<S>>: Freeze,

impl<K, V, L, S> Send for MultiConsumerLruCache<K, V, L, S>
where LruMap<K, V, L>: Send, HashMap<K, Vec<S>>: Send,

impl<K, V, L, S> Sync for MultiConsumerLruCache<K, V, L, S>
where LruMap<K, V, L>: Sync, HashMap<K, Vec<S>>: Sync,

impl<K, V, L, S> Unpin for MultiConsumerLruCache<K, V, L, S>
where LruMap<K, V, L>: Unpin, HashMap<K, Vec<S>>: Unpin,

impl<K, V, L, S> UnsafeUnpin for MultiConsumerLruCache<K, V, L, S>
where LruMap<K, V, L>: UnsafeUnpin, HashMap<K, Vec<S>>: UnsafeUnpin,

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