io_uring examples in Zig

Disclaimer: This is a work in progress

Learning io_uring by porting over the examples found in liburing, except in Zig!

What is io_uring?

There are plenty, plenty of resources talking about io_uring and its benefits in technical detail and they all probably do a better job than I will, so I'll give the TL;DR:

io_uring makes processing async I/O go brrrr by keeping syscalls to a minimum. This is done through batching reads/writes through ring buffers that are setup between the user space and the kernel space.

Implementations

• io_uring-close-test
• io_uring-test (not porting this - same as above except without file descriptor registration)
• io_uring-cp
• io_uring-udp
• link-cp
• poll-bench
• send-zerocopy
• ucontext-cp

Acknowledgements

These are the resources I learnt from:

• original liburing repo
• Lord of the io_uring
• the Zig stdlib io_uring tests, and
• TigerBeetle's io_uring demos.