socket_create(SocketId, [domain(unix)]) or,
socket_create(SocketId, [domain(unix), type(stream)])
Unix domain socket affect tcp_connect/2
(for clients) and
tcp_bind/2 and tcp_accept/3
(for servers). The address is an atom or string that is handled as a
file name. On most systems the length of this file name is limited to
128 bytes (including null terminator), but according to the Linux
unix(7)), portable applications must keep
the address below 92 bytes. Note that these lengths are in bytes.
Non-ascii characters may be represented as multiple bytes. If the length
limit is exceeded a
representation_error(af_unix_name) exception is raised.