-- I started this port of smoltcp thinking that I would want a big flat
-- ctable.  However in the end I don't think that's the right thing,
-- because the sockets can move around in memory, and if you implement a
-- TCP service, you'd like to be able for the fiber or whatever that
-- serves a connection to be able to work with the socket directly --
-- but if it can move around in memory, you're inviting problems.
--
-- So, the next step here is to refactor this to make the "socket" the
-- primary object and not the socket table.  At the same time, the
-- "proto" library changed since this code was first written; need to
-- port there.  But in general I would say (to myself, probably!), look
-- at apps/tcp/server.lua and figure out what needs to be done here to
-- make that work.