writer_stream_class = bt_ctf_stream_class_create_empty(name);
if (!writer_stream_class) {
fprintf(err, "[error] %s in %s:%d\n",
writer_stream_class = bt_ctf_stream_class_create_empty(name);
if (!writer_stream_class) {
fprintf(err, "[error] %s in %s:%d\n",