Struct TwoLevelCache 

pub struct TwoLevelCache { /* private fields */ }

A two-level cache: a small hot cache backed by a larger cold cache.

Implementations

impl TwoLevelCache

pub fn new(hot_capacity: usize) -> Self

Create a two-level cache with the given hot capacity.

pub fn get(&mut self, key: u64) -> Option<u64>

Look up a key; checks hot first, then cold (and promotes on hit).

pub fn insert(&mut self, key: u64, val: u64)

Insert a value; placed in hot cache (evicts to cold if full).

pub fn stats(&self) -> &CacheSessionStats

Return a reference to the current session stats.

pub fn total_len(&self) -> usize

Return total number of entries (hot + cold).

pub fn clear(&mut self)

Clear both levels.