Struct ShardedPageCache 

pub struct ShardedPageCache { /* private fields */ }

Sharded LRU cache for deserialized index pages.

Uses the same shard-by-hash pattern as BlockCache to reduce lock contention when multiple threads look up index pages concurrently.

Implementations

impl ShardedPageCache

pub fn with_capacity(capacity: usize) -> Self

Creates a new page cache with the given total capacity.

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

Look up a page by its offset key. Returns None on miss or poisoned lock.

pub fn insert(&self, key: u64, page: Arc<IndexPage>)

Insert a page into the cache.

Trait Implementations

impl Debug for ShardedPageCache

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

Formats the value using the given formatter.

impl Default for ShardedPageCache

fn default() -> Self

Returns the “default value” for a type.