ISAR/libmdbx
3
0
Fork 0
mirror of https://github.com/isar/libmdbx.git synced 2025-04-04 04:02:57 +08:00
Code Issues Packages Projects Releases Wiki Activity

mdbx: перемещение узлов в node_add_branch() после проверки переполнения страницы.

Browse Source
This commit is contained in:
Леонид Юрьев (Leonid Yuriev) 2025-02-21 16:04:42 +03:00
parent 936c25e671
commit db163cbcfd
1 changed files with 7 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
src/node.c
View File

@ -53,12 +53,6 @@ int __must_check_result node_add_branch(MDBX_cursor *mc, size_t indx, const MDBX
cASSERT(mc, mp->txnid >= mc->txn->front_txnid);
STATIC_ASSERT(NODESIZE % 2 == 0);
/* Move higher pointers up one slot. */
const size_t nkeys = page_numkeys(mp);
cASSERT(mc, nkeys >= indx);
for (size_t i = nkeys; i > indx; --i)
mp->entries[i] = mp->entries[i - 1];
/* Adjust free space offsets. */
const size_t branch_bytes = branch_size(mc->txn->env, key);
const intptr_t lower = mp->lower + sizeof(indx_t);
@ -67,6 +61,13 @@ int __must_check_result node_add_branch(MDBX_cursor *mc, size_t indx, const MDBX
mc->txn->flags |= MDBX_TXN_ERROR;
return MDBX_PAGE_FULL;
}
/* Move higher pointers up one slot. */
const size_t nkeys = page_numkeys(mp);
cASSERT(mc, nkeys >= indx);
for (size_t i = nkeys; i > indx; --i)
mp->entries[i] = mp->entries[i - 1];
mp->lower = (indx_t)lower;
mp->entries[indx] = mp->upper = (indx_t)upper;