scherben-map.rs

Concurrent Sharded HashMap for Rust.

scherben-map splits the HashMap into N shards, each protected by their own Read/Write lock.

example

Using atomically reference counted HashMap:

use scherben_map;
use std;

fn main() {
    let map = scherben_map::HashMap::<&str, &str, /*shard count*/ 8>::new_arc();

    map.insert("Hallo", "Welt");

    {
        let (map_a, map_b) = (map.clone(), map.clone());
        let handle_a = std::thread::spawn(move || {
            println!("{}", map_a.get_owned("Hallo").unwrap());
        });

        let handle_b = std::thread::spawn(move || {
            println!("{}", map_b.get_owned("Hallo").unwrap());
        });

        _ = handle_a.join();
        _ = handle_b.join();
    }

    // get all key/value pairs
    let pairs = map.pairs();

    // get all keys
    let keys = map.keys();
}

status

This library in under development.

This library is inspired by concurrent-map and sharded.