BUS/RT - Rust-native IPC broker

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.

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:

• Python (sync): https://pypi.org/project/busrt/
• Python (async): https://pypi.org/project/busrt-async/
• JavaScript (Node.js): https://www.npmjs.com/package/busrt

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

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.