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Cleanup C_DEL flag usage

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Only set it if the cursor's current position was deleted
This commit is contained in:
Howard Chu 2015-11-24 12:14:49 +00:00
parent 1424aa06a6
commit 50d96511f8
1 changed files with 4 additions and 7 deletions
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11
libraries/liblmdb/mdb.c
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@ -6226,8 +6226,6 @@ mdb_cursor_get(MDB_cursor *mc, MDB_val *key, MDB_val *data,
MDB_GET_KEY(leaf, key);
if (data) {
if (F_ISSET(leaf->mn_flags, F_DUPDATA)) {
if (mc->mc_flags & C_DEL)
mdb_xcursor_init1(mc, leaf);
rc = mdb_cursor_get(&mc->mc_xcursor->mx_cursor, data, NULL, MDB_GET_CURRENT);
} else {
rc = mdb_node_read(mc->mc_txn, leaf, data);
@ -6990,7 +6988,6 @@ mdb_cursor_del(MDB_cursor *mc, unsigned int flags)
}
}
mc->mc_db->md_entries--;
mc->mc_flags |= C_DEL;
return rc;
} else {
mc->mc_xcursor->mx_cursor.mc_flags &= ~C_INITIALIZED;
@ -8312,12 +8309,12 @@ mdb_cursor_del0(MDB_cursor *mc)
if (m3 == mc || m3->mc_snum < mc->mc_snum)
continue;
if (m3->mc_pg[mc->mc_top] == mp) {
if (m3->mc_ki[mc->mc_top] >= ki) {
if (m3->mc_ki[mc->mc_top] == ki) {
m3->mc_flags |= C_DEL;
if (m3->mc_ki[mc->mc_top] > ki)
m3->mc_ki[mc->mc_top]--;
else if (mc->mc_db->md_flags & MDB_DUPSORT)
if (mc->mc_db->md_flags & MDB_DUPSORT)
m3->mc_xcursor->mx_cursor.mc_flags &= ~C_INITIALIZED;
} else if (m3->mc_ki[mc->mc_top] > ki) {
m3->mc_ki[mc->mc_top]--;
}
if (m3->mc_xcursor && (m3->mc_xcursor->mx_cursor.mc_flags & C_INITIALIZED)) {
MDB_node *node = NODEPTR(m3->mc_pg[mc->mc_top], m3->mc_ki[mc->mc_top]);