Waiting for many things at once with io_uring

Very interesting, but unfortunate there is no example program. I guess that is left as exercise for reader, but it's a bit daunting for a non systems programmer.

For c there is :

https://git.kernel.dk/cgit/liburing/tree/examples

There's also a minimal Rust example for tokio:

https://github.com/tokio-rs/io-uring/tree/master/examples