struct bt_stream_class *stream_class = NULL, *writer_stream_class = NULL;
struct bt_event *writer_event = NULL;
int int_ret;
struct bt_stream_class *stream_class = NULL, *writer_stream_class = NULL;
struct bt_event *writer_event = NULL;
int int_ret;
writer_event_class = get_event_class(writer_component,
writer_stream_class, event_class);
if (!writer_event_class) {
writer_event_class = ctf_copy_event_class(writer_component->err,
writer_event_class = get_event_class(writer_component,
writer_stream_class, event_class);
if (!writer_event_class) {
writer_event_class = ctf_copy_event_class(writer_component->err,