Support Unix Domain Sockets with io_uring transport

[tsegismont]

In Netty 4.2, Unix Domain Sockets with io_uring are supported.

But they were not integrated by Vert.x yet.

[tsegismont]

@vietj please take a look at this draft.

In the long run, do you want to have a job for native io_uring + domain sockets, as we have for native epoll?

Here it's convenient because the job for native io_uring is temporarily disabled, so at least we have some smoke tests for TCP and HTTP client / servers.

[vietj]

I'd like to have things tests as they should be

[tsegismont]

Can you elaborate?

[vietj]

@tsegismont do we have io uring fully passing on CI ?

[vietj]

I can see now only a few tests are executed in the new io uring profile

[tsegismont]

@tsegismont do we have io uring fully passing on CI ?
I can see now only a few tests are executed in the new io uring profile

Not yet. This is why this is a draft PR that we will be ready for review when the NativeIoUring CI job can be enabled again.

In the meantime, I was wondering if, eventually, we'd need the NativeIoUring+DomainSockets job like we have for epoll

[vietj]

I don't know yet, I need to see how io uring testing comes

[vietj]

great, but for now I'd like to stick to smoke tests in the io_uring test profile

[tsegismont]

Merging as the failures are unrelated