Use Unix sockets on Windows if available

[ncihnegn]

AF_UNIX has been available on Windows since 2017 (https://devblogs.microsoft.com/commandline/af_unix-comes-to-windows/).

Can we use Unix sockets instead of named pipes on Windows?

[stefnotch]

The Rust standard library seems to also be looking at supporting AF_UNIX , is that correct?

rust-lang/rust#56533

[kotauskas]

As Ud-sockets have been outsourced to the standard library, this is now blocked on upstream.

[LonerDan]

Not sure what the timeline of that upstream implementation is like, but FYI there seems to be support via this crate.

[kouhe3]

guys!! i create a pr to add win af unix to std. hope you test it!
rust-lang/rust#147335