listen(::UTF8String) throws error

[amitmurthy]

julia> listen(UTF8String("/tmp/ewewew"))
ERROR: `bind` has no method matching bind(::PipeServer, ::UTF8String)
Closest candidates are:
  bind(::PipeServer, ::ASCIIString)

listen(path::ByteString) which calls bind(server::PipeServer, name::ASCIIString) is the issue. I assume that bind can be changed to accept a ByteString without any issues?

[stevengj]

I agree. bind calls uv_pipe_bind, which seems to support UTF-8 strings. The Windows uv_pipe_bind explicitly converts the name from UTF-8 to UTF-16 and calls CreateNamedPipeW. On Unix, I think UTF-8 should be allowed too for sockaddr_un.sun_path in bind (Unix pathnames are usually cookies, and any ASCII superset is permitted).

[stevengj]

Actually, you can just use AbstractString here, not ByteString. Arbitrary string types will be converted by bytestring to UTF-8 as needed (see 4c72d02) for the ccall.

(Several of the other functions need to be changed from ByteString to AbstractString as well.)