A quick POC to play with io_uring APIs using Go.
Frodo deliberately keeps the API dead simple. Because he does not want the ring to fall into the wrong hands. It just exposes 2 very simple ReadFile and WriteFile functions which are akin to the ioutil family of functions. These calls just push an entry to the submission queue. To allow the user to control when to submit the queue, a Poll function is provided.
The Poll function will submit the queue and wait for all the entries to appear in the completion queue. Dive into the code to know more :)
For an overall explanation of the subject matter, please read: https://developers.mattermost.com/blog/hands-on-iouring-go.
For a more detailed background, please read: https://kernel.dk/io_uring.pdf.
- Install liburing in your machine from latest master. (https://github.com/axboe/liburing/)
- You need to have a modern (>=5.3) Linux kernel. It may work on older kernels too. But I have not tested it.
See the docs page to get started.