def _read_chunk_from_socket(socket):
    """
    (coroutine)
    Turn socket reading into coroutine.
    """
    fd = socket.fileno()
    f = Future()

    def read_callback():
        get_event_loop().remove_reader(fd)

        # Read next chunk.
        try:
            data = socket.recv(1024)
        except OSError as e:
            # On OSX, when we try to create a new window by typing "pymux
            # new-window" in a centain pane, very often we get the following
            # error: "OSError: [Errno 9] Bad file descriptor."
            # This doesn't seem very harmful, and we can just try again.
            logger.warning('Got OSError while reading data from client: %s. '
                           'Trying again.', e)
            f.set_result('')
            return

        if data:
            f.set_result(data)
        else:
            f.set_exception(BrokenPipeError)

    get_event_loop().add_reader(fd, read_callback)

    return f
(coroutine)
    Turn socket reading into coroutine.