Module async_lru_cache

Provides a least-recently-used cache with async access.

To operate, this cache is bound to an I/O back-end object that provides the loading and flushing of cache entries.

The cache holds map.write() during eviction I/O, so cross-cache flush dependencies (e.g. “flush cache B before evicting from cache A”) must be handled externally (see e.g. qcow2’s MetadataCaches).

Structs

AsyncLruCache 🔒

Least-recently-used cache with async access.

AsyncLruCacheEntry 🔒

Cache entry structure, wrapping the cached object.

AsyncLruCacheInner 🔒

Least-recently-used cache with async access.

Traits

AsyncLruCacheBackend 🔒

Provides loading and flushing for cache entries.