24 releases

new 0.4.15 Jan 9, 2025
0.4.13 Nov 19, 2024
0.4.10 Apr 27, 2024
0.4.9 Feb 9, 2024
0.3.6 Nov 6, 2022

#624 in Network programming

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185 downloads per month
Used in 9 crates (7 directly)

Apache-2.0

280KB
7.5K SLoC

Rust 5.5K SLoC // 0.0% comments Python 1.5K SLoC // 0.0% comments TypeScript 635 SLoC // 0.2% comments JavaScript 121 SLoC // 0.1% comments Shell 14 SLoC

BUS/RT - Rust-native IPC broker crates.io page docs.rs page GitHub Actions CI

What is BUS/RT

BUS/RT® is a Rust-native IPC broker, written in Rust/Tokio, inspired by NATS, ZeroMQ and Nanomsg. BUS/RT is fast, flexible and very easy to use, optimized for both high-load and ultra-low latency real-time scenarios.

The library can be embedded in any Rust project or be used as a standalone server.

BUS/RT is the core bus of EVA ICS v4.

Inter-process communication

The following communication patterns are supported out-of-the-box:

  • one-to-one messages
  • one-to-many messages
  • pub/sub

The following channels are supported:

  • async channels between threads/futures (Rust only)
  • UNIX sockets (local machine, Linux/BSD)
  • TCP sockets (Linux/BSD/Windows)

In addition to Rust, BUS/RT has also bindings for the following languages:

Rust crate: https://crates.io/crates/busrt

Real-time safety

Use rt feature to use for internal mutexes parking_lot_rt - a parking_lot fork without spin-locks, which is real-time safe.

Technical documentation

The full documentation is available at: https://info.bma.ai/en/actual/busrt/

Some numbers

Benchmarks

CPU: i7-7700HQ

Broker: 4 workers, clients: 8, payload size: 100 bytes, local IPC (single unix socket), totals:

stage iters/s
rpc.call 126_824
rpc.call+handle 64_694
rpc.call0 178_505
send+recv.qos.no 1_667_131
send+recv.qos.processed 147_812
send.qos.no 2_748_870
send.qos.processed 183_795

About the authors

Bohemia Automation / Altertech is a group of companies with 15+ years of experience in the enterprise automation and industrial IoT. Our setups include power plants, factories and urban infrastructure. Largest of them have 1M+ sensors and controlled devices and the bar raises higher and higher every day.

Dependencies

~6–25MB
~395K SLoC