mirror/openldap
2
0
Fork 0
mirror of https://git.openldap.org/openldap/openldap.git synced 2024-12-21 03:10:25 +08:00
Code Issues Packages Projects Releases Wiki Activity

Fix mdb_move_node again

Browse Source
This commit is contained in:
Howard Chu 2011-09-06 23:16:45 -07:00
parent f9c8796d0b
commit 1f8c3369b9
1 changed files with 26 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
libraries/libmdb/mdb.c
View File

@ -2322,7 +2322,7 @@ mdb_get(MDB_txn *txn, MDB_dbi dbi,
{
MDB_cursor mc;
MDB_xcursor mx;
int exact;
int exact = 0;
DKBUF;
assert(key);
@ -3475,6 +3475,7 @@ mdb_xcursor_init0(MDB_cursor *mc)
mx->mx_dbxs[dbn+1].md_rel = mx->mx_dbxs[dbn].md_rel;
mx->mx_dbxs[dbn+1].md_dirty = 0;
mx->mx_txn.mt_numdbs = dbn+2;
mx->mx_txn.mt_u = mc->mc_txn->mt_u;
mx->mx_cursor.mc_xcursor = NULL;
mx->mx_cursor.mc_txn = &mx->mx_txn;
@ -3503,7 +3504,6 @@ mdb_xcursor_init1(MDB_cursor *mc, MDB_page *mp, MDB_node *node)
mx->mx_dbxs[dbn].md_name.mv_data = NODEKEY(node);
mx->mx_dbxs[dbn].md_name.mv_size = node->mn_ksize;
mx->mx_txn.mt_next_pgno = mc->mc_txn->mt_next_pgno;
mx->mx_txn.mt_u = mc->mc_txn->mt_u;
mx->mx_cursor.mc_snum = 0;
mx->mx_cursor.mc_flags = 0;
}
@ -3697,7 +3697,16 @@ mdb_move_node(MDB_txn *txn, MDB_dbi dbi, MDB_pageparent *src, indx_t srcindx,
data.mv_size = 0;
data.mv_data = NULL;
} else {
srcnode = NODEPTR(src->mp_page, srcindx);
if (srcindx == 0 && IS_BRANCH(src->mp_page)) {
/* must find the lowest key below src */
MDB_pageparent mpp;
mpp.mp_page = src->mp_page;
mpp.mp_pi = 0;
mdb_search_page_root(txn, dbi, NULL, NULL, 0, &mpp);
srcnode = NODEPTR(mpp.mp_page, 0);
} else {
srcnode = NODEPTR(src->mp_page, srcindx);
}
key.mv_size = NODEKSZ(srcnode);
key.mv_data = NODEKEY(srcnode);
data.mv_size = NODEDSZ(srcnode);
@ -3721,17 +3730,17 @@ mdb_move_node(MDB_txn *txn, MDB_dbi dbi, MDB_pageparent *src, indx_t srcindx,
*/
mdb_del_node(src->mp_page, srcindx, key.mv_size);
/* The key value just changed due to del_node, find it again.
*/
if (!IS_LEAF2(src->mp_page)) {
srcnode = NODEPTR(src->mp_page, srcindx);
key.mv_data = NODEKEY(srcnode);
}
/* Update the parent separators.
*/
if (srcindx == 0) {
if (src->mp_pi != 0) {
if (IS_LEAF2(src->mp_page)) {
key.mv_data = LEAF2KEY(src->mp_page, srcindx, key.mv_size);
} else {
srcnode = NODEPTR(src->mp_page, srcindx);
key.mv_size = NODEKSZ(srcnode);
key.mv_data = NODEKEY(srcnode);
}
DPRINTF("update separator for source page %lu to [%s]",
src->mp_page->mp_pgno, DKEY(&key));
if ((rc = mdb_update_key(src->mp_parent, src->mp_pi,
@ -3747,6 +3756,13 @@ mdb_move_node(MDB_txn *txn, MDB_dbi dbi, MDB_pageparent *src, indx_t srcindx,
if (dstindx == 0) {
if (dst->mp_pi != 0) {
if (IS_LEAF2(src->mp_page)) {
key.mv_data = LEAF2KEY(dst->mp_page, 0, key.mv_size);
} else {
srcnode = NODEPTR(dst->mp_page, 0);
key.mv_size = NODEKSZ(srcnode);
key.mv_data = NODEKEY(srcnode);
}
DPRINTF("update separator for destination page %lu to [%s]",
dst->mp_page->mp_pgno, DKEY(&key));
if ((rc = mdb_update_key(dst->mp_parent, dst->mp_pi,