#hash-map #cache #advanced #structures #redis #multi-threading #concurrency

quick-hash-cache

Async Concurrent Hashmap. Unlike Redis it supports multi threading and advanced data structures

1 stable release

1.0.1 Nov 12, 2023

#215 in Caching

MIT license

45KB
1K SLoC

quick-hash-cache

An Async Concurrent Hashmap with LRU Build a blazing fast HashMap Cache structure that can be used for web servers, databases, or other systems with high levels of concurrent access. It improves on the mostly single threaded nature of Redis and supports advanced custom data structures.

Example

use quick_hash_cache::lru::{Evict, LruCache};

#[tokio::main]
async fn main() {
    let cache = LruCache::default();

    for i in 0..20 {
        cache.insert(i, i).await;
    }

    println!("{:?}", cache.get(&2).await);

    let res = cache.evict_many(10, rand::thread_rng()).await;

    assert_eq!(res.len(), 10);

    println!("{:?}", res);
    println!("{} {:?}", cache.size(), cache.get(&0).await);
    println!("{} {:?}", cache.size(), cache.get(&2).await);
}

Methods

hash_builder, hash_and_shard, clear, retain, iter_shards, size, num_shards, try_maybe_contains_hash, contains_hash, contains, remove, insert, get, get_cloned, get_mut, get_or_insert, get_mut_or_insert, get_or_default, get_mut_or_default, batch_read, batch_write

Dependencies

~4.5–8MB
~132K SLoC