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Merge remote-tracking branch 'origin/mdb.master'

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This commit is contained in:
Howard Chu 2012-07-26 07:25:07 -07:00
commit 0e3fa1ee14
1 changed files with 33 additions and 30 deletions
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63
libraries/libmdb/mdb.c
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@ -1877,6 +1877,23 @@ mdb_txn_commit(MDB_txn *txn)
DPRINTF("committing txn %zu %p on mdbenv %p, root page %zu",
txn->mt_txnid, (void *)txn, (void *)env, txn->mt_dbs[MAIN_DBI].md_root);
/* Update DB root pointers. Their pages have already been
* touched so this is all in-place and cannot fail.
*/
{
MDB_dbi i;
MDB_val data;
data.mv_size = sizeof(MDB_db);
mdb_cursor_init(&mc, txn, MAIN_DBI, NULL);
for (i = 2; i < txn->mt_numdbs; i++) {
if (txn->mt_dbflags[i] & DB_DIRTY) {
data.mv_data = &txn->mt_dbs[i];
mdb_cursor_put(&mc, &txn->mt_dbxs[i].md_name, &data, 0);
}
}
}
mdb_cursor_init(&mc, txn, FREE_DBI, NULL);
/* should only be one record now */
@ -1997,22 +2014,6 @@ again:
env->me_free_pgs = txn->mt_free_pgs;
}
/* Update DB root pointers. Their pages have already been
* touched so this is all in-place and cannot fail.
*/
{
MDB_dbi i;
MDB_val data;
data.mv_size = sizeof(MDB_db);
mdb_cursor_init(&mc, txn, MAIN_DBI, NULL);
for (i = 2; i < txn->mt_numdbs; i++) {
if (txn->mt_dbflags[i] & DB_DIRTY) {
data.mv_data = &txn->mt_dbs[i];
mdb_cursor_put(&mc, &txn->mt_dbxs[i].md_name, &data, 0);
}
}
}
#if MDB_DEBUG > 2
mdb_audit(txn);
#endif
@ -3857,20 +3858,22 @@ mdb_cursor_set(MDB_cursor *mc, MDB_val *key, MDB_val *data,
goto set1;
}
if (rc < 0) {
/* This is definitely the right page, skip search_page */
if (mp->mp_flags & P_LEAF2) {
nodekey.mv_data = LEAF2KEY(mp,
mc->mc_ki[mc->mc_top], nodekey.mv_size);
} else {
leaf = NODEPTR(mp, mc->mc_ki[mc->mc_top]);
MDB_SET_KEY(leaf, &nodekey);
}
rc = mc->mc_dbx->md_cmp(key, &nodekey);
if (rc == 0) {
/* current node was the one we wanted */
if (exactp)
*exactp = 1;
goto set1;
if (mc->mc_ki[mc->mc_top] < NUMKEYS(mp)) {
/* This is definitely the right page, skip search_page */
if (mp->mp_flags & P_LEAF2) {
nodekey.mv_data = LEAF2KEY(mp,
mc->mc_ki[mc->mc_top], nodekey.mv_size);
} else {
leaf = NODEPTR(mp, mc->mc_ki[mc->mc_top]);
MDB_SET_KEY(leaf, &nodekey);
}
rc = mc->mc_dbx->md_cmp(key, &nodekey);
if (rc == 0) {
/* current node was the one we wanted */
if (exactp)
*exactp = 1;
goto set1;
}
}
rc = 0;
goto set2;