thread__db_id
bool export_comm_thread = comm && !thread__db_id(thread);
*db_id = thread__db_id(thread);
if (thread__db_id(thread))
main_thread_db_id = thread__db_id(main_thread);
tuple_set_d64(t, 0, thread__db_id(thread));
tuple_set_d64(t, 2, thread__db_id(thread));
tuple_set_d64(t, 2, thread__db_id(thread));
tuple_set_d64(t, 3, thread__db_id(es->al->thread));
tuple_set_d64(t, 1, thread__db_id(cr->thread));