Cask

A fast key-value store written in Rust. The underlying storage system is a log-structured hash table which is inspired by bitcask.

API Documentation

WARNING: ⚠️ Please do not trust any valuable data to this yet. ⚠️

Installation

Use the crates.io repository, add this to your Cargo.toml along with the rest of your dependencies:

[dependencies]
cask = "0.7.0"

Then, use Cask in your crate:

extern crate cask;
use cask::{CaskOptions, SyncStrategy};

Usage

The basic usage of the library is shown below:

extern crate cask;

use std::str;
use cask::{CaskOptions, SyncStrategy};
use cask::errors::Result;

fn main() {
    if let Err(e) = example() {
        println!("{:?}", e);
    }
}

fn example() -> Result<()> {
    let cask = CaskOptions::default()
        .compaction_check_frequency(1200)
        .sync(SyncStrategy::Interval(5000))
        .max_file_size(1024 * 1024 * 1024)
        .open("cask.db")?;

    let key = "hello";
    let value = "world";

    cask.put(key, value)?;

    let v = cask.get(key)?;
    println!("key:{},value:{}", key, str::from_utf8(&v.unwrap()).unwrap());

    cask.delete(key)?;
    Ok(())
}

TODO

• [X] Basic error handling
• [X] Merge files during compaction
• [X] Configurable compaction triggers and thresholds
• [X] Documentation
• [ ] Tests
• [ ] Benchmark
• [ ] Handle database corruption

License

cask is licensed under the MIT license. See LICENSE for details.