t4

t4 is a local, embedded, high-performance object store.

Features

• Performance, correctness, and ergonomics, pick three.
• io_uring for all I/O, scale to modern SSDs.
• Deterministic, predictable performance, one request is one I/O.
• Runtime-agnostic async API.

Usage

Values are written and read by key. Reads support full-value and range access.

let store = t4::mount("your-data.t4").await?;

store.put(b"a.txt", b"Hello, world!").await?;

let content = store.get(b"a.txt").await?;
assert_eq!(content, b"Hello, world!");

let slice = store.get_range(b"a.txt", 7, 5).await?;
assert_eq!(slice, b"world");

let removed = store.remove(b"a.txt").await?;
assert!(removed);

Limitations

File name is up to 256 bytes, file size is up to 4 GB.

Vision

t4 will be the ultimate and only file system you need.