MIO - Metal IO

MIO is a lightweight IO library for Rust with a focus on adding as little overhead as possible over the OS abstractions.

• API documentation

• Crates.io

Usage

To use mio, first add this to your Cargo.toml:

toml [dependencies] mio = "0.3.0"

Then, add this to your crate root:

rust extern crate mio;

Features

• Event loop backed by epoll, kqueue.
• Zero allocations at runtime
• Non-blocking TCP, UDP and Unix domain sockets
• High performance timer system
• Thread safe message channel for cross thread communication

Eventually

• Signal handling

Non goals

The following are specifically omitted from MIO and are left to the user or higher level libraries.

• File operations
• Thread pools / multi-threaded event loop
• Windows support

Platforms

Currently, MIO only supports Linux and Darwin. The goal is to support all platforms that support Rust and the readiness IO model.

Community

A group of mio users hang out in the #mio channel on the Mozilla IRC server (irc.mozilla.org). This can be a good place to go for questions.