DB_OPEN
db->flag = DB_OPEN;
if ((db->flag & (DB_OPEN|DB_EXIST)) ==
(DB_OPEN|DB_EXIST)) {
if (!DB_OPEN(hdp)) {
if (DB_OPEN(hdp)) {
assert(DB_OPEN(hdp));
assert(!DB_OPEN(hdp));
if (hdp == NULL || !HDL_RDONLY(hdp) || DB_OPEN(hdp)) {
assert(!DB_OPEN(hdp));
if (DB_OPEN(hdp)) {
case DB_OPEN: s = "open"; break;