hp 147 libdb/bt_delete.c __bt_stkacq(t, hp, c) hp 149 libdb/bt_delete.c PAGE **hp; hp 165 libdb/bt_delete.c h = *hp; hp 279 libdb/bt_delete.c return ((*hp = mpool_get(t->bt_mp, c->pg.pgno, 0)) == NULL);