Announcement: Current development of the futures crates is happening on the 0.3 branch

futures-rs

This library is an implementation of zero-cost futures in Rust.

Documentation

Tutorial

Usage

First, add this to your Cargo.toml:

[dependencies]
futures = "0.2.2"

Next, add this to your crate:

extern crate futures;

use futures::Future;

For more information about how you can use futures with async I/O you can take a look at https://tokio.rs which is an introduction to both the Tokio stack and also futures.

Feature std

futures-rs works without the standard library, such as in bare metal environments. However, it has a significantly reduced API surface. To use futures-rs in a #[no_std] environment, use:

[dependencies]
futures = { version = "0.2.2", default-features = false }

License

This project is licensed under either of

• Apache License, Version 2.0, (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in Futures by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.