Struct L2WarmCache 

pub struct L2WarmCache { /* private fields */ }

L2 warm cache (shared across connections)

This cache stores normalized query results shared across all connections. It supports two storage backends:

• Memory: Fast, volatile storage
• Mmap: Memory-mapped file that survives restarts

Implementations

impl L2WarmCache

pub fn new(config: L2Config) -> Self

Create a new L2 warm cache

pub async fn get(&self, key: &CacheKey) -> Option<CachedResult>

Look up a cache key

pub async fn put(&self, key: CacheKey, result: CachedResult)

Store a result in the cache

pub async fn remove(&self, key: &CacheKey)

Remove an entry from the cache

pub async fn clear(&self)

Clear all entries

pub fn len(&self) -> usize

Get current entry count

pub fn is_empty(&self) -> bool

Check if cache is empty

pub fn memory_usage(&self) -> usize

Get current memory usage in bytes

pub fn stats(&self) -> L2CacheStats

Get cache statistics

pub fn flush_to_disk(&self) -> Result<usize, Error>

Flush memory entries to mmap (for graceful shutdown)

pub fn load_from_disk(&self) -> Result<usize, Error>

Load entries from mmap on startup

Trait Implementations

impl Debug for L2WarmCache

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

Formats the value using the given formatter.