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mdbx: refine mdbx_update_key() and mdbx_cursor_put().

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Change-Id: I26b97f1eecff1f03e578193aebb5592ab48dd38e
This commit is contained in:
Leonid Yuriev 2018-09-08 23:58:04 +03:00 committed by Leo Yuriev
parent 8cd0107e6a
commit 36fe81edad
1 changed files with 2 additions and 6 deletions
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8
src/mdbx.c
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@ -8341,10 +8341,7 @@ new_sub:
MDBX_page *mp = mc->mc_pg[i]; MDBX_page *mp = mc->mc_pg[i];
for (m2 = mc->mc_txn->mt_cursors[dbi]; m2; m2 = m2->mc_next) { for (m2 = mc->mc_txn->mt_cursors[dbi]; m2; m2 = m2->mc_next) {
if (mc->mc_flags & C_SUB) m3 = (mc->mc_flags & C_SUB) ? &m2->mc_xcursor->mx_cursor : m2;
m3 = &m2->mc_xcursor->mx_cursor;
else
m3 = m2;
if (m3 == mc || m3->mc_snum < mc->mc_snum || m3->mc_pg[i] != mp) if (m3 == mc || m3->mc_snum < mc->mc_snum || m3->mc_pg[i] != mp)
continue; continue;
if (m3->mc_ki[i] >= mc->mc_ki[i] && insert_key) { if (m3->mc_ki[i] >= mc->mc_ki[i] && insert_key) {
@ -9470,10 +9467,9 @@ static int mdbx_update_key(MDBX_cursor *mc, const MDBX_val *key) {
/* Shift node contents if EVEN(key length) changed. */ /* Shift node contents if EVEN(key length) changed. */
if (delta) { if (delta) {
if (SIZELEFT(mp) < delta) { if (SIZELEFT(mp) < delta) {
pgno_t pgno;
/* not enough space left, do a delete and split */ /* not enough space left, do a delete and split */
mdbx_debug("Not enough room, delta = %d, splitting...", delta); mdbx_debug("Not enough room, delta = %d, splitting...", delta);
pgno = NODEPGNO(node); pgno_t pgno = NODEPGNO(node);
mdbx_node_del(mc, 0); mdbx_node_del(mc, 0);
return mdbx_page_split(mc, key, NULL, pgno, MDBX_SPLIT_REPLACE); return mdbx_page_split(mc, key, NULL, pgno, MDBX_SPLIT_REPLACE);
} }