DiskLRU is an experimental LRU store implemented in Rust.
It works as a simple key-value store and is powered by sled which is a lightweight pure-rust high-performance transactional embedded database.
It expires entries automatically passed a given number, following the LRU (least recently used) strategy, which is a quite common cache replacement policy.
It comes with a cost but is sometimes more adapted than just expiring the old keys in FIFO mode (first-in, first-out) as you may have a key-value pair which has been introduced a very long time ago in the store, but is still relevant. With DiskLRU, if your code is reading the value often, it will ensure the key stays alive and does not disappear.
HashLRU is very similar in its design, and acts as an in-memory cache, as opposed to DiskLRU being a persistent store.
For now this is a toy project, clearly NOT suitable for production use.
rust
// TODO
DiskLRU is licensed under the MIT license.