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Overview
| Comment: | Remove the code that tries to detect OOO header writes on a WAL recovery. The code is made obsolete by syncing the WAL header. |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | statvfs |
| Files: | files | file ages | folders |
| SHA1: |
7ac713a14e24c48651c2a97acc983985 |
| User & Date: | drh 2011-12-20 22:18:51 |
Context
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2011-12-21
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| 14:42 | Add the ability to enable or disable SQLITE_IOCAP_ZERO_DAMAGE using a URI parameter for both unix and windows. Add a file-control to query or disable the ZERO_DAMAGE setting. Add the -uri option to the "sqlite3" TCL command in tclsqlite3.c. Allow the sqlite3_uri_parameter() interface to accept a NULL pointer for its first parameter. (check-in: c83627b7 user: drh tags: statvfs) | |
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2011-12-20
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| 22:18 | Remove the code that tries to detect OOO header writes on a WAL recovery. The code is made obsolete by syncing the WAL header. (check-in: 7ac713a1 user: drh tags: statvfs) | |
| 20:13 | Refactor the sqlite3WalFrames() routine for clarity of presentation. Do the padded transaction sync as the write pointer crosses the final sector boundary instead of at the end, for efficiency. Always sync the WAL header immediately after it is written. (check-in: 92c73b42 user: drh tags: statvfs) | |
Changes
Changes to src/wal.c.
1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 |
u32 pgno; /* Database page number for frame */
u32 nTruncate; /* dbsize field from frame header */
/* Read and decode the next log frame. */
iFrame++;
rc = sqlite3OsRead(pWal->pWalFd, aFrame, szFrame, iOffset);
if( rc!=SQLITE_OK ) break;
if( sqlite3Get4byte(&aFrame[8]) ==
1+sqlite3Get4byte((u8*)&pWal->hdr.aSalt[0]) ){
pWal->hdr.mxFrame = 0;
pWal->hdr.nPage = 0;
break;
}
if( !isValid ) continue;
isValid = walDecodeFrame(pWal, &pgno, &nTruncate, aData, aFrame);
if( !isValid ) continue;
rc = walIndexAppend(pWal, iFrame, pgno);
if( rc!=SQLITE_OK ) break;
/* If nTruncate is non-zero, this is a commit record. */
if( nTruncate ){
pWal->hdr.mxFrame = iFrame;
pWal->hdr.nPage = nTruncate;
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1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 |
u32 pgno; /* Database page number for frame */
u32 nTruncate; /* dbsize field from frame header */
/* Read and decode the next log frame. */
iFrame++;
rc = sqlite3OsRead(pWal->pWalFd, aFrame, szFrame, iOffset);
if( rc!=SQLITE_OK ) break;
isValid = walDecodeFrame(pWal, &pgno, &nTruncate, aData, aFrame);
if( !isValid ) break;
rc = walIndexAppend(pWal, iFrame, pgno);
if( rc!=SQLITE_OK ) break;
/* If nTruncate is non-zero, this is a commit record. */
if( nTruncate ){
pWal->hdr.mxFrame = iFrame;
pWal->hdr.nPage = nTruncate;
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