# moka-cht
[![GitHub Actions][gh-actions-badge]][gh-actions]
[![crates.io release][release-badge]][crate]
[![docs][docs-badge]][docs]
[![dependency status][deps-rs-badge]][deps-rs]
[![license][license-badge]](#license)
moka-cht provides a lock-free hash table that supports fully concurrent lookups,
insertions, modifications, and deletions. The table may also be concurrently resized
to allow more elements to be inserted. moka-cht also provides a segmented hash table
using the same lock-free algorithm for increased concurrent write performance.
[gh-actions-badge]: https://github.com/moka-rs/moka-cht/workflows/CI/badge.svg
[release-badge]: https://img.shields.io/crates/v/moka-cht.svg
[docs-badge]: https://docs.rs/moka-cht/badge.svg
[deps-rs-badge]: https://deps.rs/repo/github/moka-rs/moka-cht/status.svg
[license-badge]: https://img.shields.io/crates/l/moka-cht.svg
[gh-actions]: https://github.com/moka-rs/moka-cht/actions?query=workflow%3ACI
[crate]: https://crates.io/crates/moka-cht
[docs]: https://docs.rs/moka-cht
[deps-rs]: https://deps.rs/repo/github/moka-rs/moka-cht
## Usage
Add this to your `Cargo.toml`:
```toml
moka-cht = "0.5"
```
Then in your code:
```rust
use moka_cht::HashMap;
use std::{sync::Arc, thread};
let map = Arc::new(HashMap::new());
let threads: Vec<_> = (0..16)
.map(|i| {
let map = map.clone();
thread::spawn(move || {
const NUM_INSERTIONS: usize = 64;
for j in (i * NUM_INSERTIONS)..((i + 1) * NUM_INSERTIONS) {
map.insert_and(j, j, |_prev| unreachable!());
}
})
})
.collect();
let _: Vec<_> = threads.into_iter().map(|t| t.join()).collect();
```
## License
moka-cht is distributed under either of
- The MIT license
- The Apache License (Version 2.0)
at your option.
See [LICENSE-MIT](LICENSE-MIT) and [LICENSE-APACHE](LICENSE-APACHE) for details.
## Credits
moka-cht is a fork for [cht v0.4.1][cht-v041]. We have created this fork to provide
better integration with [Moka cache][moka-cache] via a non default Cargo feature.
cht is authored by Gregory Meyer and its v0.4.1 and earlier versions are licensed
under the MIT license.
[cht-v041]: https://github.com/Gregory-Meyer/cht/tree/v0.4.1
[moka-cache]: https://github.com/moka-rs/moka