Files
tokio/src/sync.rs
T
Carl Lerche 13083153aa Introduce tokio-sync crate containing synchronization primitives. (#839)
Introduce a tokio-sync crate containing useful synchronization primitives for programs
written using Tokio.

The initial release contains:

* An mpsc channel
* A oneshot channel
* A semaphore implementation
* An `AtomicTask` primitive.

The `oneshot` and `mpsc` channels are new implementations providing improved
performance characteristics. In some benchmarks, the new mpsc channel shows
up to 7x improvement over the version provided by the `futures` crate. Unfortunately,
the `oneshot` implementation only provides a slight performance improvement as it
is mostly limited by the `futures` 0.1 task system. Once updated to the `std` version
of `Future` (currently nightly only), much greater performance improvements should
be achievable by `oneshot`.

Additionally, he implementations provided here are checked using
[Loom](http://github.com/carllerche/loom/), which provides greater confidence of
correctness.
2019-01-22 11:37:26 -08:00

17 lines
488 B
Rust

//! Future-aware synchronization
//!
//! This module is enabled with the **`sync`** feature flag.
//!
//! Tasks sometimes need to communicate with each other. This module contains
//! two basic abstractions for doing so:
//!
//! - [oneshot](oneshot/index.html), a way of sending a single value
//! from one task to another.
//! - [mpsc](mpsc/index.html), a multi-producer, single-consumer channel for
//! sending values between tasks.
pub use tokio_sync::{
mpsc,
oneshot,
};