This is an example of a simple program that uses the sans-io pattern.
It's split across three crates
ping-coreWhich implements the core logic in a sans-io way.ping-syncWhich provides a binary aroundping-corethat uses synchronous IO.ping-tokioWhich provides a binary aroundping-corethat uses Tokio.
To build and run the synchronous version:
$ cargo build && sudo target/debug/ping-syncand for the Tokio version:
$ cargo build && sudo target/debug/ping-tokioThis example was used in a talk at Rust Edinburgh on the 20th of March 2025.
The slides can be found in slides.md and viewed via presenterm