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ITS#8321 fix mdb_cursor_put

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Ignore sub-cursors that shouldn't be fixed up
This commit is contained in:
Howard Chu 2015-11-23 01:16:36 +00:00
parent 94831f7c3f
commit 5c7b84b465
1 changed files with 3 additions and 2 deletions
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5
libraries/liblmdb/mdb.c
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@ -6710,6 +6710,7 @@ put_sub:
MDB_xcursor *mx = mc->mc_xcursor;
unsigned i = mc->mc_top;
MDB_page *mp = mc->mc_pg[i];
int nkeys = NUMKEYS(mp);
for (m2 = mc->mc_txn->mt_cursors[mc->mc_dbi]; m2; m2=m2->mc_next) {
if (m2 == mc || m2->mc_snum < mc->mc_snum) continue;
@ -6717,9 +6718,9 @@ put_sub:
if (m2->mc_pg[i] == mp) {
if (m2->mc_ki[i] == mc->mc_ki[i]) {
mdb_xcursor_init2(m2, mx, new_dupdata);
} else if (!insert_key) {
} else if (!insert_key && m2->mc_ki[i] < nkeys) {
MDB_node *n2 = NODEPTR(mp, m2->mc_ki[i]);
if (!(n2->mn_flags & F_SUBDATA))
if ((n2->mn_flags & (F_SUBDATA|F_DUPDATA)) == F_DUPDATA)
m2->mc_xcursor->mx_cursor.mc_pg[0] = NODEDATA(n2);
}
}