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Minor tweak to balance_quick() to save a few instructions. (CVS 6743)

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FossilOrigin-Name: 9ace995910c8b0b9e95dc20fd70be487199e37af
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danielk1977
2009-06-10 09:11:06 +00:00
parent 6860da015f
commit e56b60ecb8
3 changed files with 13 additions and 12 deletions
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9
src/btree.c
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@@ -9,7 +9,7 @@
** May you share freely, never taking more than you give.
**
*************************************************************************
** $Id: btree.c,v 1.625 2009/06/09 18:58:53 shane Exp $
** $Id: btree.c,v 1.626 2009/06/10 09:11:06 danielk1977 Exp $
**
** This file implements a external (disk-based) database using BTrees.
** See the header comment on "btreeInt.h" for additional information.
@@ -5232,6 +5232,8 @@ static int balance_quick(MemPage *pParent, MemPage *pPage, u8 *pSpace){
assert( sqlite3_mutex_held(pPage->pBt->mutex) );
assert( sqlite3PagerIswriteable(pParent->pDbPage) );
assert( pPage->nOverflow==1 );
if( pPage->nCell<=0 ) return SQLITE_CORRUPT_BKPT;
/* Allocate a new page. This page will become the right-sibling of
@@ -5247,10 +5249,9 @@ static int balance_quick(MemPage *pParent, MemPage *pPage, u8 *pSpace){
u8 *pStop;
assert( sqlite3PagerIswriteable(pNew->pDbPage) );
zeroPage(pNew, pPage->aData[0]);
assert( pPage->aData[0]==(PTF_INTKEY|PTF_LEAFDATA|PTF_LEAF) );
zeroPage(pNew, PTF_INTKEY|PTF_LEAFDATA|PTF_LEAF);
assemblePage(pNew, 1, &pCell, &szCell);
pPage->nOverflow = 0;
/* Create a divider cell to insert into pParent. The divider cell
** consists of a 4-byte page number (the page number of pPage) and