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Overview
| Comment: | Fix for a segfault that can follow a malloc failure. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | wal-refactor |
| Files: | files | file ages | folders |
| SHA1: | 3cab9022457ce50f82c5822d8ba6c04a |
| User & Date: | dan 2010-05-13 07:08:54 |
Context
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2010-05-13
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| 08:33 | Change the xShmSize() implementation in os_unix.c so that it will only increase and never decrease the size of a shared-memory segment. Closed-Leaf check-in: 149d2ae4 user: drh tags: wal-refactor | |
| 07:08 | Fix for a segfault that can follow a malloc failure. check-in: 3cab9022 user: dan tags: wal-refactor | |
| 06:19 | Modify the VFS in test_vfs.c to match the refactoring of the xShmXXX methods. check-in: 25e72f81 user: dan tags: wal-refactor | |
Changes
Changes to src/wal.c.
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pRet->pVfs = pVfs;
pRet->pWalFd = (sqlite3_file *)&pRet[1];
pRet->pDbFd = pDbFd;
pRet->zWalName = zWal = pVfs->szOsFile + (char*)pRet->pWalFd;
sqlite3_snprintf(nWal, zWal, "%s-wal", zDbName);
rc = sqlite3OsShmOpen(pDbFd);
pRet->isWindexOpen = 1;
/* Open file handle on the write-ahead log file. */
if( rc==SQLITE_OK ){
flags = (SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE|SQLITE_OPEN_MAIN_JOURNAL);
rc = sqlite3OsOpen(pVfs, zWal, pRet->pWalFd, flags, &flags);
}
if( rc!=SQLITE_OK ){
walIndexClose(pRet, 0);
sqlite3OsClose(pRet->pWalFd);
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pRet->pVfs = pVfs;
pRet->pWalFd = (sqlite3_file *)&pRet[1];
pRet->pDbFd = pDbFd;
pRet->zWalName = zWal = pVfs->szOsFile + (char*)pRet->pWalFd;
sqlite3_snprintf(nWal, zWal, "%s-wal", zDbName);
rc = sqlite3OsShmOpen(pDbFd);
/* Open file handle on the write-ahead log file. */
if( rc==SQLITE_OK ){
pRet->isWindexOpen = 1;
flags = (SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE|SQLITE_OPEN_MAIN_JOURNAL);
rc = sqlite3OsOpen(pVfs, zWal, pRet->pWalFd, flags, &flags);
}
if( rc!=SQLITE_OK ){
walIndexClose(pRet, 0);
sqlite3OsClose(pRet->pWalFd);
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