Struct QuickCacheBackend 

pub struct QuickCacheBackend { /* private fields */ }

Available on crate feature quick_cache only.

QuickCache in-memory cache with per-key TTL support

This is an alternative L1 (hot tier) cache backend optimized for maximum performance:

• Extremely fast in-memory access (sub-microsecond latency)
• Automatic eviction via LRU
• Per-key TTL support
• Minimal memory overhead
• Lock-free design for concurrent access

When to use QuickCache vs Moka:

• Use QuickCache when you need maximum throughput and minimal latency
• Use Moka when you need advanced features like time-to-idle or weight-based eviction

Implementations

impl QuickCacheBackend

pub fn new(max_capacity: u64) -> CacheResult<Self>

Create new QuickCache

Arguments

• max_capacity - Maximum number of entries (default: 2000)

Errors

Returns an error if the capacity is invalid.

pub const fn size(&self) -> usize

Get current cache size

Trait Implementations

impl CacheBackend for QuickCacheBackend

Implement CacheBackend trait for QuickCacheBackend

fn get<'a>(&'a self, key: &'a str) -> BoxFuture<'a, Option<Bytes>>

Get value from cache by key

fn set_with_ttl<'a>( &'a self, key: &'a str, value: Bytes, ttl: Duration, ) -> BoxFuture<'a, CacheResult<()>>

Set value in cache with time-to-live

fn remove<'a>(&'a self, key: &'a str) -> BoxFuture<'a, CacheResult<()>>

Remove value from cache

fn health_check(&self) -> BoxFuture<'_, bool>

Check if cache backend is healthy

fn name(&self) -> &'static str

Get the name of this cache backend

fn set<'a>( &'a self, key: &'a str, value: Bytes, ) -> BoxFuture<'a, CacheResult<()>>

Set value in cache with default TTL (5 minutes)

fn remove_pattern<'a>( &'a self, _pattern: &'a str, ) -> BoxFuture<'a, CacheResult<()>>

Remove keys matching a pattern