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Overview
| Comment: | Fix the xCheckReservedLock() method on the windows VFS so that it cannot return a false positive when two or more processes use it at the same time on the same file. Ticket [7ff3120e4fa54abb55] |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
dd3510bb20ade173c81c9874c0546601 |
| User & Date: | drh 2013-04-11 18:28:55 |
Context
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2013-04-11
| ||
| 21:13 | For the multi-process tester on Win32, make use of the GetCurrentProcessId API. check-in: f1b524b9 user: mistachkin tags: trunk | |
| 18:28 | Fix the xCheckReservedLock() method on the windows VFS so that it cannot return a false positive when two or more processes use it at the same time on the same file. Ticket [7ff3120e4fa54abb55] check-in: dd3510bb user: drh tags: trunk | |
| 13:26 | Fix pragma code generation so that it always outputs an OP_Trace opcode so that pragmas are shown in sqlite3_trace() output. check-in: 663f04bd user: drh tags: trunk | |
Changes
Changes to src/os_win.c.
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SimulateIOError( return SQLITE_IOERR_CHECKRESERVEDLOCK; );
assert( id!=0 );
if( pFile->locktype>=RESERVED_LOCK ){
rc = 1;
OSTRACE(("TEST WR-LOCK %d %d (local)\n", pFile->h, rc));
}else{
rc = winLockFile(&pFile->h, SQLITE_LOCKFILE_FLAGS, RESERVED_BYTE, 0, 1, 0);
if( rc ){
winUnlockFile(&pFile->h, RESERVED_BYTE, 0, 1, 0);
}
rc = !rc;
OSTRACE(("TEST WR-LOCK %d %d (remote)\n", pFile->h, rc));
}
*pResOut = rc;
|
| |
2698 2699 2700 2701 2702 2703 2704 2705 2706 2707 2708 2709 2710 2711 2712 |
SimulateIOError( return SQLITE_IOERR_CHECKRESERVEDLOCK; );
assert( id!=0 );
if( pFile->locktype>=RESERVED_LOCK ){
rc = 1;
OSTRACE(("TEST WR-LOCK %d %d (local)\n", pFile->h, rc));
}else{
rc = winLockFile(&pFile->h, SQLITE_LOCKFILEEX_FLAGS,RESERVED_BYTE, 0, 1, 0);
if( rc ){
winUnlockFile(&pFile->h, RESERVED_BYTE, 0, 1, 0);
}
rc = !rc;
OSTRACE(("TEST WR-LOCK %d %d (remote)\n", pFile->h, rc));
}
*pResOut = rc;
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