.. but the test is kind of broken.. it appears that rust pads structs for
alignment purposes? I can't get the struct to == 28.. that appears to
be the native size of sockaddr_in6.. so we have a size 32 struct, for now.
This comes with a terminology change. All linkage-symbols are 'extern'
now, including rust syms in other crates. Some extern ABIs are
merely "foreign". The term "native" is retired, not clear/useful.
What was "crust" is now "extern" applied to a _definition_. This
is a bit of an overloading, but should be unambiguous: it means
that the definition should be made available to some non-rust ABI.
- change port of tcp server test in uv_ll to avoid conflict w/ test in
net::tcp
- a few places the tcp::read fn is used in test w/ a timeout.. suspend
use of the timeout from here on out.
* tweaked the layout of sockaddr_in6 struct in anticipation of future use
* changed several uv:ll fn signatures to use generics and be more flexible
with ptr types they get passed
* add uv_err_data and a help fn to return it.. packages up err_name and
err_msg info from uv_get_last_error() stuff..
.. fixes issue, in previous commit, with global loop test hanging on
32bit linux (this was because the struct was too small, so (presumably),
the data member was garbled.. yippy)
