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Overview
| Comment: | Remove a testcase() macro that would require a 4GiB WAL to reach. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
15f9c2713bdfd3d6c8d8d4298f101d12 |
| User & Date: | drh 2010-07-07 14:35:58 |
Context
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2010-07-07
| ||
| 14:40 | Remove two more testcase() macros that require 4GiB WAL files to hit. check-in: 16e18f27 user: drh tags: trunk | |
| 14:35 | Remove a testcase() macro that would require a 4GiB WAL to reach. check-in: 15f9c271 user: drh tags: trunk | |
| 14:33 | Fix a compiler warning in PRAGMA journal_mode. check-in: d94269e6 user: drh tags: trunk | |
Changes
Changes to src/wal.c.
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/* Iterate through the contents of the WAL, copying data to the db file. */
while( rc==SQLITE_OK && 0==walIteratorNext(pIter, &iDbpage, &iFrame) ){
i64 iOffset;
assert( walFramePgno(pWal, iFrame)==iDbpage );
if( iFrame<=nBackfill || iFrame>mxSafeFrame ) continue;
iOffset = walFrameOffset(iFrame, szPage) + WAL_FRAME_HDRSIZE;
/* testcase( IS_BIG_INT(iOffset) ); -- would require a 4GB WAL file */
rc = sqlite3OsRead(pWal->pWalFd, zBuf, szPage, iOffset);
if( rc!=SQLITE_OK ) break;
iOffset = (iDbpage-1)*(i64)szPage;
testcase( IS_BIG_INT(iOffset) );
rc = sqlite3OsWrite(pWal->pDbFd, zBuf, szPage, iOffset);
if( rc!=SQLITE_OK ) break;
}
................................................................................
/* If iRead is non-zero, then it is the log frame number that contains the
** required page. Read and return data from the log file.
*/
if( iRead ){
i64 iOffset = walFrameOffset(iRead, pWal->hdr.szPage) + WAL_FRAME_HDRSIZE;
*pInWal = 1;
testcase( IS_BIG_INT(iOffset) );
return sqlite3OsRead(pWal->pWalFd, pOut, nOut, iOffset);
}
*pInWal = 0;
return SQLITE_OK;
}
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/* Iterate through the contents of the WAL, copying data to the db file. */
while( rc==SQLITE_OK && 0==walIteratorNext(pIter, &iDbpage, &iFrame) ){
i64 iOffset;
assert( walFramePgno(pWal, iFrame)==iDbpage );
if( iFrame<=nBackfill || iFrame>mxSafeFrame ) continue;
iOffset = walFrameOffset(iFrame, szPage) + WAL_FRAME_HDRSIZE;
/* testcase( IS_BIG_INT(iOffset) ); // requires a 4GiB WAL file */
rc = sqlite3OsRead(pWal->pWalFd, zBuf, szPage, iOffset);
if( rc!=SQLITE_OK ) break;
iOffset = (iDbpage-1)*(i64)szPage;
testcase( IS_BIG_INT(iOffset) );
rc = sqlite3OsWrite(pWal->pDbFd, zBuf, szPage, iOffset);
if( rc!=SQLITE_OK ) break;
}
................................................................................
/* If iRead is non-zero, then it is the log frame number that contains the
** required page. Read and return data from the log file.
*/
if( iRead ){
i64 iOffset = walFrameOffset(iRead, pWal->hdr.szPage) + WAL_FRAME_HDRSIZE;
*pInWal = 1;
/* testcase( IS_BIG_INT(iOffset) ); // requires a 4GiB WAL */
return sqlite3OsRead(pWal->pWalFd, pOut, nOut, iOffset);
}
*pInWal = 0;
return SQLITE_OK;
}
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