WASIX Support

[moloch--]

This is a longer term feature request, but would be great to have WASIX support in Wazero;

• https://wasmer.io/posts/announcing-wasix
• https://wasix.org/

[ncruces]

The important bit to track is:
https://wasix.org/docs/api-reference#wasix-functions

The thread related stuff seems to depend on the phase 3 threads proposal (which we deferred in #1487).

[codefromthecrypt]

@moloch-- so we currently have a table of supported functions in wasi_snapshot_preview1, so I imagine this would require a table for the extensions like clock_time_set.

I only just saw the docs today.. do you know what module name the extensions go into? Also, when we implemented WASI in the first place, we did things priority order instead of big bang. Can you mention which specific functions you need implemented and how you are using them (rust or c)?

[codefromthecrypt]

Also, there's recently a project that is more experimentation friendly https://github.com/stealthrocket/wasi-go One way to proceed is to develop the features there (as there's no back compat or windows requirements), then once stable we can add them here.

[ncruces]

do you know what module name the extensions go into?

It's wasix_32v1, apparently.

[moloch--]

Can you mention which specific functions you need implemented and how you are using them (rust or c)?

Our primary use case is sockets/networking, at least for how we use Wazero the rest are "nice to haves." Currently mostly using Rust, but also some wasi-python (but that's still experimental on the Python side so probably not worth worrying about).

[codefromthecrypt]

@moloch-- by the way, as wasix is a superset of wasip1, I expect its socket support to be "mix and match" capable. watch releases as I am writing notes about v1.2.0 which adds experimental support for the socket functions defined in wasip1. There are glitches around non-blocking I/O, still, so if interested you can follow this. It would be good to know which functions python uses, as I'm not currently sure if it uses the existing wasip1 ones or not..