btree_close
btree_close(data_db);
btree_close(data_db);
btree_close(indx_db);
btree_close(data_db);
btree_close(indx_db);
btree_close(bt);
btree_close(bt);
btree_close(cursor->bt);
btree_close(btc);
btree_close(btc);
btree_close(txn->bt);
void btree_close(struct btree *bt);
btree_close(ns->data_db);
btree_close(ns->indx_db);
btree_close(*bt);
btree_close(ns->data_db);
btree_close(ns->indx_db);