LockFreeLruCache

Struct LockFreeLruCache 

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pub struct LockFreeLruCache<K, V>
where K: Hash + Eq + Clone + Send + Sync + 'static, V: Clone + Send + Sync + 'static,
{ /* private fields */ }
Expand description

Lock-free two-tier cache with DashMap L1 and LruCache L2.

Optimized for read-heavy workloads with hot keys.

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impl<K, V> LockFreeLruCache<K, V>
where K: Hash + Eq + Clone + Send + Sync + 'static, V: Clone + Send + Sync + 'static,

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pub fn new(l1_capacity: usize, l2_capacity: usize) -> Self

Create a new lock-free LRU cache.

§Arguments
  • l1_capacity - Maximum entries in L1 (hot cache)
  • l2_capacity - Maximum entries in L2 (LRU backing store)
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pub fn get(&self, key: &K) -> Option<V>

Get a value, checking L1 first then L2.

If found in L2, promotes to L1 for faster subsequent access.

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pub fn peek_l1(&self, key: &K) -> Option<V>

Peek at L1 only (ultra-fast, no promotion).

Returns None if not in L1, even if present in L2.

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pub fn peek_l2(&self, key: &K) -> Option<V>

Peek at L2 only (no L1 check, no promotion).

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pub fn insert(&self, key: K, value: V)

Insert a key-value pair (write-through to L1 and L2).

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pub fn remove(&self, key: &K)

Remove a key from both L1 and L2.

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pub fn clear(&self)

Clear both L1 and L2.

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pub fn stats(&self) -> LockFreeCacheStats

Get cache statistics.

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pub fn l1_capacity(&self) -> usize

Get L1 capacity.

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pub fn l2_capacity(&self) -> usize

Get L2 capacity.

Trait Implementations§

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impl<K, V> Default for LockFreeLruCache<K, V>
where K: Hash + Eq + Clone + Send + Sync + 'static, V: Clone + Send + Sync + 'static,

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fn default() -> Self

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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impl<K, V> !Freeze for LockFreeLruCache<K, V>

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impl<K, V> !RefUnwindSafe for LockFreeLruCache<K, V>

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impl<K, V> Send for LockFreeLruCache<K, V>

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impl<K, V> Sync for LockFreeLruCache<K, V>

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impl<K, V> Unpin for LockFreeLruCache<K, V>
where K: Unpin, V: Unpin,

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impl<K, V> UnwindSafe for LockFreeLruCache<K, V>
where K: UnwindSafe, V: UnwindSafe,

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