Many hyperlinks are disabled.
Use anonymous login
to enable hyperlinks.
Overview
| Comment: | Add the win32-none VFS which omits rollback-journal locking. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | win32-none |
| Files: | files | file ages | folders |
| SHA1: |
03e3c5a8b17a219a49bfbe79b7debd27 |
| User & Date: | drh 2014-04-22 19:30:00 |
Context
|
2014-04-22
| ||
| 19:34 | Add some OSTRACE calls for consistency. check-in: be292d55 user: mistachkin tags: win32-none | |
| 19:30 | Add the win32-none VFS which omits rollback-journal locking. check-in: 03e3c5a8 user: drh tags: win32-none | |
|
2014-04-21
| ||
| 13:36 | Comment tweaks on the test case for the [b75a9ca6b0] bug fix. check-in: 65d2544a user: drh tags: trunk | |
Changes
Changes to src/os_win.c.
271 272 273 274 275 276 277 278 279 280 281 282 283 284 .... 2855 2856 2857 2858 2859 2860 2861 2862 2863 2864 2865 2866 2867 2868 .... 2982 2983 2984 2985 2986 2987 2988 2989 2990 2991 2992 2993 2994 2995 2996 .... 3018 3019 3020 3021 3022 3023 3024 3025 3026 3027 3028 3029 3030 3031 .... 4688 4689 4690 4691 4692 4693 4694 4695 4696 4697 4698 4699 4700 4701 .... 5412 5413 5414 5415 5416 5417 5418 5419 5420 5421 5422 5423 5424 5425 .... 5428 5429 5430 5431 5432 5433 5434 5435 5436 5437 5438 5439 5440 5441 |
/* ** Allowed values for winFile.ctrlFlags */ #define WINFILE_RDONLY 0x02 /* Connection is read only */ #define WINFILE_PERSIST_WAL 0x04 /* Persistent WAL mode */ #define WINFILE_PSOW 0x10 /* SQLITE_IOCAP_POWERSAFE_OVERWRITE */ /* * The size of the buffer used by sqlite3_win32_write_debug(). */ #ifndef SQLITE_WIN32_DBG_BUF_SIZE # define SQLITE_WIN32_DBG_BUF_SIZE ((int)(4096-sizeof(DWORD))) #endif ................................................................................ int gotPendingLock = 0;/* True if we acquired a PENDING lock this time */ winFile *pFile = (winFile*)id; DWORD lastErrno = NO_ERROR; assert( id!=0 ); OSTRACE(("LOCK file=%p, oldLock=%d(%d), newLock=%d\n", pFile->h, pFile->locktype, pFile->sharedLockByte, locktype)); /* If there is already a lock of this type or more restrictive on the ** OsFile, do nothing. Don't use the end_lock: exit path, as ** sqlite3OsEnterMutex() hasn't been called yet. */ if( pFile->locktype>=locktype ){ OSTRACE(("LOCK-HELD file=%p, rc=SQLITE_OK\n", pFile->h)); ................................................................................ int rc; winFile *pFile = (winFile*)id; SimulateIOError( return SQLITE_IOERR_CHECKRESERVEDLOCK; ); OSTRACE(("TEST-WR-LOCK file=%p, pResOut=%p\n", pFile->h, pResOut)); assert( id!=0 ); if( pFile->locktype>=RESERVED_LOCK ){ rc = 1; OSTRACE(("TEST-WR-LOCK file=%p, rc=%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); } ................................................................................ int type; winFile *pFile = (winFile*)id; int rc = SQLITE_OK; assert( pFile!=0 ); assert( locktype<=SHARED_LOCK ); OSTRACE(("UNLOCK file=%p, oldLock=%d(%d), newLock=%d\n", pFile->h, pFile->locktype, pFile->sharedLockByte, locktype)); type = pFile->locktype; if( type>=EXCLUSIVE_LOCK ){ winUnlockFile(&pFile->h, SHARED_FIRST, 0, SHARED_SIZE, 0); if( locktype==SHARED_LOCK && !winGetReadLock(pFile) ){ /* This should never happen. We should always be able to ** reacquire the read lock */ rc = winLogError(SQLITE_IOERR_UNLOCK, osGetLastError(), ................................................................................ pFile->h = h; if( isReadonly ){ pFile->ctrlFlags |= WINFILE_RDONLY; } if( sqlite3_uri_boolean(zName, "psow", SQLITE_POWERSAFE_OVERWRITE) ){ pFile->ctrlFlags |= WINFILE_PSOW; } pFile->lastErrno = NO_ERROR; pFile->zPath = zName; #if SQLITE_MAX_MMAP_SIZE>0 pFile->hMap = NULL; pFile->pMapRegion = 0; pFile->mmapSize = 0; pFile->mmapSizeActual = 0; ................................................................................ winGetLastError, /* xGetLastError */ winCurrentTimeInt64, /* xCurrentTimeInt64 */ winSetSystemCall, /* xSetSystemCall */ winGetSystemCall, /* xGetSystemCall */ winNextSystemCall, /* xNextSystemCall */ }; #endif /* Double-check that the aSyscall[] array has been constructed ** correctly. See ticket [bb3a86e890c8e96ab] */ assert( ArraySize(aSyscall)==76 ); /* get memory map allocation granularity */ memset(&winSysInfo, 0, sizeof(SYSTEM_INFO)); ................................................................................ #else osGetSystemInfo(&winSysInfo); #endif assert( winSysInfo.dwAllocationGranularity>0 ); assert( winSysInfo.dwPageSize>0 ); sqlite3_vfs_register(&winVfs, 1); #if defined(SQLITE_WIN32_HAS_WIDE) sqlite3_vfs_register(&winLongPathVfs, 0); #endif return SQLITE_OK; } |
> > > > > > | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > |
271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 .... 2856 2857 2858 2859 2860 2861 2862 2863 2864 2865 2866 2867 2868 2869 2870 2871 2872 .... 2986 2987 2988 2989 2990 2991 2992 2993 2994 2995 2996 2997 2998 2999 3000 3001 3002 .... 3024 3025 3026 3027 3028 3029 3030 3031 3032 3033 3034 3035 3036 3037 3038 3039 3040 .... 4697 4698 4699 4700 4701 4702 4703 4704 4705 4706 4707 4708 4709 4710 4711 4712 4713 .... 5424 5425 5426 5427 5428 5429 5430 5431 5432 5433 5434 5435 5436 5437 5438 5439 5440 5441 5442 5443 5444 5445 5446 5447 5448 5449 5450 5451 5452 5453 5454 5455 5456 5457 5458 5459 5460 5461 .... 5464 5465 5466 5467 5468 5469 5470 5471 5472 5473 5474 5475 5476 5477 5478 |
/* ** Allowed values for winFile.ctrlFlags */ #define WINFILE_RDONLY 0x02 /* Connection is read only */ #define WINFILE_PERSIST_WAL 0x04 /* Persistent WAL mode */ #define WINFILE_PSOW 0x10 /* SQLITE_IOCAP_POWERSAFE_OVERWRITE */ #define WINFILE_NOLOCK 0x20 /* Never do any real locking */ /* * The size of the buffer used by sqlite3_win32_write_debug(). */ #ifndef SQLITE_WIN32_DBG_BUF_SIZE # define SQLITE_WIN32_DBG_BUF_SIZE ((int)(4096-sizeof(DWORD))) #endif ................................................................................ int gotPendingLock = 0;/* True if we acquired a PENDING lock this time */ winFile *pFile = (winFile*)id; DWORD lastErrno = NO_ERROR; assert( id!=0 ); OSTRACE(("LOCK file=%p, oldLock=%d(%d), newLock=%d\n", pFile->h, pFile->locktype, pFile->sharedLockByte, locktype)); if( pFile->ctrlFlags & WINFILE_NOLOCK ){ return SQLITE_OK; } /* If there is already a lock of this type or more restrictive on the ** OsFile, do nothing. Don't use the end_lock: exit path, as ** sqlite3OsEnterMutex() hasn't been called yet. */ if( pFile->locktype>=locktype ){ OSTRACE(("LOCK-HELD file=%p, rc=SQLITE_OK\n", pFile->h)); ................................................................................ int rc; winFile *pFile = (winFile*)id; SimulateIOError( return SQLITE_IOERR_CHECKRESERVEDLOCK; ); OSTRACE(("TEST-WR-LOCK file=%p, pResOut=%p\n", pFile->h, pResOut)); assert( id!=0 ); if( pFile->ctrlFlags & WINFILE_NOLOCK ){ rc = 0; }else if( pFile->locktype>=RESERVED_LOCK ){ rc = 1; OSTRACE(("TEST-WR-LOCK file=%p, rc=%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); } ................................................................................ int type; winFile *pFile = (winFile*)id; int rc = SQLITE_OK; assert( pFile!=0 ); assert( locktype<=SHARED_LOCK ); OSTRACE(("UNLOCK file=%p, oldLock=%d(%d), newLock=%d\n", pFile->h, pFile->locktype, pFile->sharedLockByte, locktype)); if( pFile->ctrlFlags & WINFILE_NOLOCK ){ return SQLITE_OK; } type = pFile->locktype; if( type>=EXCLUSIVE_LOCK ){ winUnlockFile(&pFile->h, SHARED_FIRST, 0, SHARED_SIZE, 0); if( locktype==SHARED_LOCK && !winGetReadLock(pFile) ){ /* This should never happen. We should always be able to ** reacquire the read lock */ rc = winLogError(SQLITE_IOERR_UNLOCK, osGetLastError(), ................................................................................ pFile->h = h; if( isReadonly ){ pFile->ctrlFlags |= WINFILE_RDONLY; } if( sqlite3_uri_boolean(zName, "psow", SQLITE_POWERSAFE_OVERWRITE) ){ pFile->ctrlFlags |= WINFILE_PSOW; } if( strcmp(pVfs->zName,"win32-none")==0 ){ pFile->ctrlFlags |= WINFILE_NOLOCK; } pFile->lastErrno = NO_ERROR; pFile->zPath = zName; #if SQLITE_MAX_MMAP_SIZE>0 pFile->hMap = NULL; pFile->pMapRegion = 0; pFile->mmapSize = 0; pFile->mmapSizeActual = 0; ................................................................................ winGetLastError, /* xGetLastError */ winCurrentTimeInt64, /* xCurrentTimeInt64 */ winSetSystemCall, /* xSetSystemCall */ winGetSystemCall, /* xGetSystemCall */ winNextSystemCall, /* xNextSystemCall */ }; #endif static sqlite3_vfs winNoneVfs = { 3, /* iVersion */ sizeof(winFile), /* szOsFile */ SQLITE_WIN32_MAX_PATH_BYTES, /* mxPathname */ 0, /* pNext */ "win32-none", /* zName */ 0, /* pAppData */ winOpen, /* xOpen */ winDelete, /* xDelete */ winAccess, /* xAccess */ winFullPathname, /* xFullPathname */ winDlOpen, /* xDlOpen */ winDlError, /* xDlError */ winDlSym, /* xDlSym */ winDlClose, /* xDlClose */ winRandomness, /* xRandomness */ winSleep, /* xSleep */ winCurrentTime, /* xCurrentTime */ winGetLastError, /* xGetLastError */ winCurrentTimeInt64, /* xCurrentTimeInt64 */ winSetSystemCall, /* xSetSystemCall */ winGetSystemCall, /* xGetSystemCall */ winNextSystemCall, /* xNextSystemCall */ }; /* Double-check that the aSyscall[] array has been constructed ** correctly. See ticket [bb3a86e890c8e96ab] */ assert( ArraySize(aSyscall)==76 ); /* get memory map allocation granularity */ memset(&winSysInfo, 0, sizeof(SYSTEM_INFO)); ................................................................................ #else osGetSystemInfo(&winSysInfo); #endif assert( winSysInfo.dwAllocationGranularity>0 ); assert( winSysInfo.dwPageSize>0 ); sqlite3_vfs_register(&winVfs, 1); sqlite3_vfs_register(&winNoneVfs, 0); #if defined(SQLITE_WIN32_HAS_WIDE) sqlite3_vfs_register(&winLongPathVfs, 0); #endif return SQLITE_OK; } |