ret = bt_ctf_stream_class_set_clock(user->sc, clock);
assert(!ret);
user->stream = bt_ctf_writer_create_stream(user->writer, user->sc);
ret = bt_ctf_stream_class_set_clock(user->sc, clock);
assert(!ret);
user->stream = bt_ctf_writer_create_stream(user->writer, user->sc);