Feat: add an example for spmc ring buffer

[solus161]

Description

This is an PR for the issue #101.

The example follows several other examples such as hello-single-latest-async. It features one producer and two consumers running at different rates and tries to simulate the lagging/dropped message behavior of the ring.

Related Issue

• [Add minimal example: hello-spmc-ring-async #101]

Checklist

• I have read the CONTRIBUTING.md document.
• My code follows the project's coding standards.
• I have added tests to cover my changes.
• All new and existing tests passed (make check).
• I have updated the documentation accordingly.

[lxsaah]

Thanks for the PR and welcome. This is really a nice first contribution! The example builds and runs cleanly, fmt/clippy are green and the slow-consumer-lags-and-drops behavior comes through clearly in the output. That's exactly the SPMC ring story we wanted for #101.

Four small changes inline below, posted as one-click suggestions. Everything else looks good to me. Thanks again for taking this one on!

[solus161]

Thanks for the PR and welcome. This is really a nice first contribution! The example builds and runs cleanly, fmt/clippy are green and the slow-consumer-lags-and-drops behavior comes through clearly in the output. That's exactly the SPMC ring story we wanted for #101.

Four small changes inline below, posted as one-click suggestions. Everything else looks good to me. Thanks again for taking this one on!

Thx for the comment. It's my first time contributing something so I'm not used to all conventions. I have repushed changes, make check and make check all are green. Plz check. Glad if I could help.