Many hyperlinks are disabled.
Use anonymous login
to enable hyperlinks.
Overview
| Comment: | Revise logic in winDelete to check the file prior to attempting to delete it. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | av-defense |
| Files: | files | file ages | folders |
| SHA1: |
36f11acc531a524407e03c797a6a1bcf |
| User & Date: | mistachkin 2011-07-12 14:02:47 |
Context
|
2011-07-12
| ||
| 14:38 | Merge the improved anti-virus defenses into the trunk. check-in: 0207fd9b user: drh tags: trunk | |
| 14:02 | Revise logic in winDelete to check the file prior to attempting to delete it. Closed-Leaf check-in: 36f11acc user: mistachkin tags: av-defense | |
| 13:51 | Improvements to the logging that occurs on an antivirus I/O retry. check-in: ff0ff75c user: drh tags: av-defense | |
Changes
Changes to src/os_win.c.
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
....
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
|
*/
static int retryIoerr(int *pnRetry){
DWORD e;
if( *pnRetry>=SQLITE_WIN32_IOERR_RETRY ){
return 0;
}
e = GetLastError();
if( e==ERROR_LOCK_VIOLATION || e==ERROR_SHARING_VIOLATION ){
Sleep(SQLITE_WIN32_IOERR_RETRY_DELAY*(1+*pnRetry));
++*pnRetry;
return 1;
}
return 0;
}
................................................................................
SimulateIOError(return SQLITE_IOERR_DELETE);
zConverted = convertUtf8Filename(zFilename);
if( zConverted==0 ){
return SQLITE_NOMEM;
}
if( isNT() ){
while( (rc = DeleteFileW(zConverted))!=0 || retryIoerr(&cnt) ){}
/* isNT() is 1 if SQLITE_OS_WINCE==1, so this else is never executed.
** Since the ASCII version of these Windows API do not exist for WINCE,
** it's important to not reference them for WINCE builds.
*/
#if SQLITE_OS_WINCE==0
}else{
while( (rc = DeleteFileW(zConverted))!=0 || retryIoerr(&cnt) ){}
#endif
}
if( rc ){
rc = winLogError(SQLITE_IOERR_DELETE, "winDelete", zFilename);
}else{
logIoerr(cnt);
}
|
>
>
|
>
>
|
>
|
>
>
>
|
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
....
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
|
*/
static int retryIoerr(int *pnRetry){
DWORD e;
if( *pnRetry>=SQLITE_WIN32_IOERR_RETRY ){
return 0;
}
e = GetLastError();
if( e==ERROR_ACCESS_DENIED ||
e==ERROR_LOCK_VIOLATION ||
e==ERROR_SHARING_VIOLATION ){
Sleep(SQLITE_WIN32_IOERR_RETRY_DELAY*(1+*pnRetry));
++*pnRetry;
return 1;
}
return 0;
}
................................................................................
SimulateIOError(return SQLITE_IOERR_DELETE);
zConverted = convertUtf8Filename(zFilename);
if( zConverted==0 ){
return SQLITE_NOMEM;
}
if( isNT() ){
rc = 1;
while( GetFileAttributesW(zConverted)!=INVALID_FILE_ATTRIBUTES &&
(rc = DeleteFileW(zConverted))==0 && retryIoerr(&cnt) ){}
rc = rc ? SQLITE_OK : SQLITE_ERROR;
/* isNT() is 1 if SQLITE_OS_WINCE==1, so this else is never executed.
** Since the ASCII version of these Windows API do not exist for WINCE,
** it's important to not reference them for WINCE builds.
*/
#if SQLITE_OS_WINCE==0
}else{
rc = 1;
while( GetFileAttributesA(zConverted)!=INVALID_FILE_ATTRIBUTES &&
(rc = DeleteFileA(zConverted))==0 && retryIoerr(&cnt) ){}
rc = rc ? SQLITE_OK : SQLITE_ERROR;
#endif
}
if( rc ){
rc = winLogError(SQLITE_IOERR_DELETE, "winDelete", zFilename);
}else{
logIoerr(cnt);
}
|