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Overview
| Comment: | Add retry logic to GetFileAttributesEx() on windows. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | experimental |
| Files: | files | file ages | folders |
| SHA1: | 1cca9a49f2612c0c2695e63a429ce4bc |
| User & Date: | drh 2011-04-15 13:29:45 |
Context
|
2011-04-15
| ||
| 13:29 | Add retry logic to GetFileAttributesEx() on windows. Closed-Leaf check-in: 1cca9a49 user: drh tags: experimental | |
| 12:36 | Make sure the unix backend returns SQLITE_FULL if write() fails with an ENOSPC error code. check-in: 721e3c16 user: drh tags: trunk | |
Changes
Changes to src/os_win.c.
2377 2378 2379 2380 2381 2382 2383 2384 2385 2386 2387 2388 2389 2390 2391 2392 2393 2394 2395 |
SimulateIOError( return SQLITE_IOERR_ACCESS; );
zConverted = convertUtf8Filename(zFilename);
if( zConverted==0 ){
return SQLITE_NOMEM;
}
if( isNT() ){
WIN32_FILE_ATTRIBUTE_DATA sAttrData;
memset(&sAttrData, 0, sizeof(sAttrData));
if( GetFileAttributesExW((WCHAR*)zConverted,
GetFileExInfoStandard,
&sAttrData) ){
/* For an SQLITE_ACCESS_EXISTS query, treat a zero-length file
** as if it does not exist.
*/
if( flags==SQLITE_ACCESS_EXISTS
&& sAttrData.nFileSizeHigh==0
&& sAttrData.nFileSizeLow==0 ){
attr = INVALID_FILE_ATTRIBUTES;
|
> > > > | | | > > |
2377 2378 2379 2380 2381 2382 2383 2384 2385 2386 2387 2388 2389 2390 2391 2392 2393 2394 2395 2396 2397 2398 2399 2400 2401 |
SimulateIOError( return SQLITE_IOERR_ACCESS; );
zConverted = convertUtf8Filename(zFilename);
if( zConverted==0 ){
return SQLITE_NOMEM;
}
if( isNT() ){
DWORD rc;
int retryCnt = 0;
WIN32_FILE_ATTRIBUTE_DATA sAttrData;
memset(&sAttrData, 0, sizeof(sAttrData));
do{
if( retryCnt>0 ) Sleep(10*(retryCnt-1));
rc = GetFileAttributesExW((WCHAR*)zConverted,
GetFileExInfoStandard,
&sAttrData);
}while( rc!=0 && (retryCnt++)<3 && GetLastError()==ERROR_ACCESS_DENIED );
if( rc ){
/* For an SQLITE_ACCESS_EXISTS query, treat a zero-length file
** as if it does not exist.
*/
if( flags==SQLITE_ACCESS_EXISTS
&& sAttrData.nFileSizeHigh==0
&& sAttrData.nFileSizeLow==0 ){
attr = INVALID_FILE_ATTRIBUTES;
|