Many hyperlinks are disabled.
Use anonymous login
to enable hyperlinks.
Overview
| Comment: | Extend even further the logging designed to find problems in the pointer-map structure. Call abort() to dump a core as soon as such a problem is seen. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | begin-concurrent |
| Files: | files | file ages | folders |
| SHA3-256: |
f131677dcb4937e0dd62626afa91756a |
| User & Date: | dan 2017-06-02 09:31:27 |
| Wiki: | begin-concurrent |
Context
|
2017-06-08
| ||
| 15:54 | Merge changes for version 3.19.0 with this branch. check-in: 0f59bb94 user: dan tags: begin-concurrent | |
|
2017-06-02
| ||
| 09:31 | Extend even further the logging designed to find problems in the pointer-map structure. Call abort() to dump a core as soon as such a problem is seen. check-in: f131677d user: dan tags: begin-concurrent | |
|
2017-05-31
| ||
| 17:06 | Generate extra log messages in response to irregularites in the pointer-map used by "BEGIN CONCURRENT" transactions. check-in: f7e3e2bc user: dan tags: begin-concurrent | |
Changes
Changes to src/btree.c.
653 654 655 656 657 658 659 660 661 662 663 664 665 666 .... 8801 8802 8803 8804 8805 8806 8807 8808 8809 8810 8811 8812 8813 8814 8815 8816 8817 8818 8819 8820 8821 8822 8823 .... 8835 8836 8837 8838 8839 8840 8841 8842 8843 8844 8845 8846 8847 8848 .... 8859 8860 8861 8862 8863 8864 8865 8866 8867 8868 8869 8870 8871 8872 .... 8878 8879 8880 8881 8882 8883 8884 8885 8886 8887 8888 8889 8890 8891 8892 |
(n>3 ? (int)pMap->aPtr[3].eType : -1),
(n>3 ? (int)pMap->aPtr[3].parent : -1),
(n>4 ? (int)pMap->aPtr[4].eType : -1),
(n>4 ? (int)pMap->aPtr[4].parent : -1)
);
break;
}
}
}
}
#else /* SQLITE_OMIT_CONCURRENT */
# define btreePtrmapAllocate(x) SQLITE_OK
................................................................................
}
/* If this is a delete operation to remove a row from a table b-tree,
** invalidate any incrblob cursors open on the row being deleted. */
if( pCur->pKeyInfo==0 ){
invalidateIncrblobCursors(p, pCur->pgnoRoot, pCur->info.nKey, 0);
}
/* Make the page containing the entry to be deleted writable. Then free any
** overflow pages associated with the entry and finally remove the cell
** itself from within the page. */
rc = sqlite3PagerWrite(pPage->pDbPage);
if( rc ) return rc;
rc = clearCell(pPage, pCell, &info);
dropCell(pPage, iCellIdx, info.nSize, &rc);
if( rc ) return rc;
/* If the cell deleted was not located on a leaf page, then the cursor
** is currently pointing to the largest entry in the sub-tree headed
** by the child-page of the cell that was just deleted from an internal
** node. The cell from the leaf node needs to be moved to the internal
** node to replace the deleted cell. */
if( !pPage->leaf ){
................................................................................
rc = sqlite3PagerWrite(pLeaf->pDbPage);
if( rc==SQLITE_OK ){
insertCell(pPage, iCellIdx, pCell-4, nCell+4, pTmp, n, &rc);
}
dropCell(pLeaf, pLeaf->nCell-1, nCell, &rc);
if( rc ) return rc;
}
/* Balance the tree. If the entry deleted was located on a leaf page,
** then the cursor still points to that page. In this case the first
** call to balance() repairs the tree, and the if(...) condition is
** never true.
**
** Otherwise, if the entry deleted was on an internal node page, then
................................................................................
if( rc==SQLITE_OK && pCur->iPage>iCellDepth ){
while( pCur->iPage>iCellDepth ){
releasePage(pCur->apPage[pCur->iPage--]);
}
rc = balance(pCur);
}
if( rc==SQLITE_OK ){
if( bSkipnext ){
assert( bPreserve && (pCur->iPage==iCellDepth || CORRUPT_DB) );
assert( pPage==pCur->apPage[pCur->iPage] || CORRUPT_DB );
assert( (pPage->nCell>0 || CORRUPT_DB) && iCellIdx<=pPage->nCell );
pCur->eState = CURSOR_SKIPNEXT;
if( iCellIdx>=pPage->nCell ){
................................................................................
}else{
rc = moveToRoot(pCur);
if( bPreserve ){
pCur->eState = CURSOR_REQUIRESEEK;
}
}
}
btreeCheckPtrmap(pBt, pBt->nPage, "sqlite3BtreeInsert()");
return rc;
}
/*
** Create a new BTree table. Write into *piTable the page
** number for the root page of the new table.
**
|
> > > > > > > > > < |
653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 .... 8802 8803 8804 8805 8806 8807 8808 8809 8810 8811 8812 8813 8814 8815 8816 8817 8818 8819 8820 8821 8822 8823 8824 8825 8826 8827 8828 .... 8840 8841 8842 8843 8844 8845 8846 8847 8848 8849 8850 8851 8852 8853 8854 8855 .... 8866 8867 8868 8869 8870 8871 8872 8873 8874 8875 8876 8877 8878 8879 8880 8881 .... 8887 8888 8889 8890 8891 8892 8893 8894 8895 8896 8897 8898 8899 8900 |
(n>3 ? (int)pMap->aPtr[3].eType : -1),
(n>3 ? (int)pMap->aPtr[3].parent : -1),
(n>4 ? (int)pMap->aPtr[4].eType : -1),
(n>4 ? (int)pMap->aPtr[4].parent : -1)
);
abort();
break;
}
}
}
}
#else /* SQLITE_OMIT_CONCURRENT */
# define btreePtrmapAllocate(x) SQLITE_OK
................................................................................
}
/* If this is a delete operation to remove a row from a table b-tree,
** invalidate any incrblob cursors open on the row being deleted. */
if( pCur->pKeyInfo==0 ){
invalidateIncrblobCursors(p, pCur->pgnoRoot, pCur->info.nKey, 0);
}
btreeCheckPtrmap(pBt, pBt->nPage, "sqlite3BtreeDelete(0)");
/* Make the page containing the entry to be deleted writable. Then free any
** overflow pages associated with the entry and finally remove the cell
** itself from within the page. */
rc = sqlite3PagerWrite(pPage->pDbPage);
if( rc ) return rc;
rc = clearCell(pPage, pCell, &info);
dropCell(pPage, iCellIdx, info.nSize, &rc);
if( rc ) return rc;
btreeCheckPtrmap(pBt, pBt->nPage, "sqlite3BtreeDelete(1)");
/* If the cell deleted was not located on a leaf page, then the cursor
** is currently pointing to the largest entry in the sub-tree headed
** by the child-page of the cell that was just deleted from an internal
** node. The cell from the leaf node needs to be moved to the internal
** node to replace the deleted cell. */
if( !pPage->leaf ){
................................................................................
rc = sqlite3PagerWrite(pLeaf->pDbPage);
if( rc==SQLITE_OK ){
insertCell(pPage, iCellIdx, pCell-4, nCell+4, pTmp, n, &rc);
}
dropCell(pLeaf, pLeaf->nCell-1, nCell, &rc);
if( rc ) return rc;
}
btreeCheckPtrmap(pBt, pBt->nPage, "sqlite3BtreeDelete(2)");
/* Balance the tree. If the entry deleted was located on a leaf page,
** then the cursor still points to that page. In this case the first
** call to balance() repairs the tree, and the if(...) condition is
** never true.
**
** Otherwise, if the entry deleted was on an internal node page, then
................................................................................
if( rc==SQLITE_OK && pCur->iPage>iCellDepth ){
while( pCur->iPage>iCellDepth ){
releasePage(pCur->apPage[pCur->iPage--]);
}
rc = balance(pCur);
}
btreeCheckPtrmap(pBt, pBt->nPage, "sqlite3BtreeDelete(3)");
if( rc==SQLITE_OK ){
if( bSkipnext ){
assert( bPreserve && (pCur->iPage==iCellDepth || CORRUPT_DB) );
assert( pPage==pCur->apPage[pCur->iPage] || CORRUPT_DB );
assert( (pPage->nCell>0 || CORRUPT_DB) && iCellIdx<=pPage->nCell );
pCur->eState = CURSOR_SKIPNEXT;
if( iCellIdx>=pPage->nCell ){
................................................................................
}else{
rc = moveToRoot(pCur);
if( bPreserve ){
pCur->eState = CURSOR_REQUIRESEEK;
}
}
}
return rc;
}
/*
** Create a new BTree table. Write into *piTable the page
** number for the root page of the new table.
**
|