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Instead of storing a pointer to the parent page in the MemPage structure, have each B-Tree cursor keep track of the ancestry of the current page. (CVS 5747)

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FossilOrigin-Name: 40425e93421286cca1965d7a5769084526210c7a
This commit is contained in:
danielk1977
2008-09-29 11:49:47 +00:00
parent d0507d691e
commit 71d5d2cd49
11 changed files with 340 additions and 414 deletions
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10
src/test_btree.c
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@@ -13,7 +13,7 @@
** is not included in the SQLite library. It is used for automated
** testing of the SQLite library.
**
** $Id: test_btree.c,v 1.7 2008/09/02 00:52:52 drh Exp $
** $Id: test_btree.c,v 1.8 2008/09/29 11:49:48 danielk1977 Exp $
*/
#include "btreeInt.h"
#include <tcl.h>
@@ -52,11 +52,11 @@ void sqlite3BtreeCursorList(Btree *p){
BtCursor *pCur;
BtShared *pBt = p->pBt;
for(pCur=pBt->pCursor; pCur; pCur=pCur->pNext){
MemPage *pPage = pCur->pPage;
MemPage *pPage = pCur->apPage[pCur->iPage];
char *zMode = pCur->wrFlag ? "rw" : "ro";
sqlite3DebugPrintf("CURSOR %p rooted at %4d(%s) currently at %d.%d%s\n",
pCur, pCur->pgnoRoot, zMode,
pPage ? pPage->pgno : 0, pCur->idx,
pPage ? pPage->pgno : 0, pCur->aiIdx[pCur->iPage],
(pCur->eState==CURSOR_VALID) ? "" : " eof"
);
}
@@ -83,8 +83,9 @@ void sqlite3BtreeCursorList(Btree *p){
** This routine is used for testing and debugging only.
*/
int sqlite3BtreeCursorInfo(BtCursor *pCur, int *aResult, int upCnt){
#if 0
int cnt, idx;
MemPage *pPage = pCur->pPage;
MemPage *pPage = pCur->apPage[pCur->iPage];
BtCursor tmpCur;
int rc;
@@ -136,5 +137,6 @@ int sqlite3BtreeCursorInfo(BtCursor *pCur, int *aResult, int upCnt){
aResult[10] = 0;
}
sqlite3BtreeReleaseTempCursor(&tmpCur);
#endif
return SQLITE_OK;
}