'Makes this server start accepting connections on the given sockets.
The ``sockets`` parameter is a list of socket objects such as
those returned by `~tornado.netutil.bind_sockets`.
`add_sockets` is typically used in combination with that
method and `tornado.process.fork_processes` to provide greater
control over the initialization of a multi-process server.'

def add_sockets(self, sockets):

    for sock in sockets:
        self._sockets[sock.fileno()] = sock
        self._handlers[sock.fileno()] = add_accept_handler(sock, self._handle_connection)
