elixir で Unix Domain Socket を読み書きする ref: http://qiita.com/bols_blue/items/efe817413ec3c38c18bd

iex

{:ok,socket}= :gen_udp.open(0, [{:ifaddr, {:local, "/tmp/testsockin"}}])
:gen_udp.send(socket,{:local, "/tmp/testsockin"}, 0, "test test \r\n")
receive do
tmp ->
  IO.inspect tmp
after 3000 ->
  IO.puts "time out"
end