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Overview
| Comment: | Add another PAGERTRACE() macro to show when pages are added to Pager.pAllRead. No impact on production builds. |
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| Downloads: | Tarball | ZIP archive |
| Timelines: | family | ancestors | descendants | both | begin-concurrent |
| Files: | files | file ages | folders |
| SHA3-256: |
11054cf5e8c24ef9ca869d558a0ca675 |
| User & Date: | drh 2017-08-11 20:22:30.659 |
Context
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2017-08-11
| ||
| 21:16 | Fix a problem allowing a conflicting transaction to be committed in the case where more than one 32KB shared-memory page has been written to since the transaction was started. (check-in: 38dd9b50fe user: dan tags: begin-concurrent) | |
| 20:22 | Add another PAGERTRACE() macro to show when pages are added to Pager.pAllRead. No impact on production builds. (check-in: 11054cf5e8 user: drh tags: begin-concurrent) | |
| 19:31 | Add a PAGERTRACE() macro to log when frames are written into the WAL file. This is for analysis only and is a no-op for production builds. (check-in: 39f39e3d9a user: drh tags: begin-concurrent) | |
Changes
Changes to src/pager.c.
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#ifndef SQLITE_OMIT_CONCURRENT
/* If this is an CONCURRENT transaction and the page being read was
** present in the database file when the transaction was opened,
** mark it as read in the pAllRead vector. */
pPg = 0;
if( pPager->pAllRead && pgno<=pPager->dbOrigSize ){
rc = sqlite3BitvecSet(pPager->pAllRead, pgno);
if( rc!=SQLITE_OK ) goto pager_acquire_err;
}
#endif
if( pgno==0 ) return SQLITE_CORRUPT_BKPT;
pBase = sqlite3PcacheFetch(pPager->pPCache, pgno, 3);
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#ifndef SQLITE_OMIT_CONCURRENT
/* If this is an CONCURRENT transaction and the page being read was
** present in the database file when the transaction was opened,
** mark it as read in the pAllRead vector. */
pPg = 0;
if( pPager->pAllRead && pgno<=pPager->dbOrigSize ){
PAGERTRACE(("USING page %d\n", pgno));
rc = sqlite3BitvecSet(pPager->pAllRead, pgno);
if( rc!=SQLITE_OK ) goto pager_acquire_err;
}
#endif
if( pgno==0 ) return SQLITE_CORRUPT_BKPT;
pBase = sqlite3PcacheFetch(pPager->pPCache, pgno, 3);
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