Many hyperlinks are disabled.
Use anonymous login
to enable hyperlinks.
Overview
| Comment: | Changes to help SQLite cope with virus scanners and other programs that open journal files for reading and thus prevent SQLite from deleting them in order to commit a transaction. (CVS 3200) |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: | f32dbe47ffd1e7e5695f02bf4263d80b |
| User & Date: | drh 2006-06-04 23:02:20 |
Context
|
2006-06-04
| ||
| 23:20 | Fix a windows portability problem in trans.test. (CVS 3201) check-in: f2538dfd user: drh tags: trunk | |
| 23:02 | Changes to help SQLite cope with virus scanners and other programs that open journal files for reading and thus prevent SQLite from deleting them in order to commit a transaction. (CVS 3200) check-in: f32dbe47 user: drh tags: trunk | |
|
2006-06-03
| ||
| 18:04 | Remove unused variables from vdbe.c. (CVS 3199) check-in: d54750ae user: drh tags: trunk | |
Changes
Changes to src/os_win.c.
476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 ... 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 ... 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 |
#endif /* OS_WINCE */
/*
** Delete the named file
*/
int sqlite3WinDelete(const char *zFilename){
WCHAR *zWide = utf8ToUnicode(zFilename);
if( zWide ){
DeleteFileW(zWide);
sqliteFree(zWide);
}else{
#if OS_WINCE
return SQLITE_NOMEM;
#else
DeleteFileA(zFilename);
#endif
}
TRACE2("DELETE \"%s\"\n", zFilename);
return SQLITE_OK;
}
/*
** Return TRUE if the named file exists.
*/
int sqlite3WinFileExists(const char *zFilename){
int exists = 0;
................................................................................
fileflags = FILE_FLAG_RANDOM_ACCESS;
#if !OS_WINCE
if( delFlag ){
fileflags |= FILE_ATTRIBUTE_TEMPORARY | FILE_FLAG_DELETE_ON_CLOSE;
}
#endif
if( zWide ){
h = CreateFileW(zWide,
GENERIC_READ | GENERIC_WRITE,
0,
NULL,
CREATE_ALWAYS,
fileflags,
NULL
);
sqliteFree(zWide);
}else{
#if OS_WINCE
return SQLITE_NOMEM;
#else
h = CreateFileA(zFilename,
GENERIC_READ | GENERIC_WRITE,
0,
NULL,
CREATE_ALWAYS,
fileflags,
NULL
);
#endif /* OS_WINCE */
}
if( h==INVALID_HANDLE_VALUE ){
return SQLITE_CANTOPEN;
}
f.h = h;
#if OS_WINCE
................................................................................
}
/*
** Close a file.
*/
static int winClose(OsFile **pId){
winFile *pFile;
if( pId && (pFile = (winFile*)*pId)!=0 ){
TRACE2("CLOSE %d\n", pFile->h);
CloseHandle(pFile->h);
#if OS_WINCE
winceDestroyLock(pFile);
if( pFile->zDeleteOnClose ){
DeleteFileW(pFile->zDeleteOnClose);
sqliteFree(pFile->zDeleteOnClose);
}
#endif
OpenCounter(-1);
sqliteFree(pFile);
*pId = 0;
}
return SQLITE_OK;
}
/*
** Read data from a file into a buffer. Return SQLITE_OK if all
** bytes were read successfully and SQLITE_IOERR if anything goes
** wrong.
*/
|
> > > | > > | > | > > | | | | | | | | > > > | | | | | | | | > > > > | > | |
476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 ... 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 ... 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 |
#endif /* OS_WINCE */
/*
** Delete the named file
*/
int sqlite3WinDelete(const char *zFilename){
WCHAR *zWide = utf8ToUnicode(zFilename);
int cnt = 0;
int rc;
if( zWide ){
do{
rc = DeleteFileW(zWide);
}while( rc==0 && cnt++ < 3 && (Sleep(100), 1) );
sqliteFree(zWide);
}else{
#if OS_WINCE
return SQLITE_NOMEM;
#else
do{
rc = DeleteFileA(zFilename);
}while( rc==0 && cnt++ < 3 && (Sleep(100), 1) );
#endif
}
TRACE2("DELETE \"%s\"\n", zFilename);
return rc==0 ? SQLITE_OK : SQLITE_IOERR;
}
/*
** Return TRUE if the named file exists.
*/
int sqlite3WinFileExists(const char *zFilename){
int exists = 0;
................................................................................
fileflags = FILE_FLAG_RANDOM_ACCESS;
#if !OS_WINCE
if( delFlag ){
fileflags |= FILE_ATTRIBUTE_TEMPORARY | FILE_FLAG_DELETE_ON_CLOSE;
}
#endif
if( zWide ){
int cnt = 0;
do{
h = CreateFileW(zWide,
GENERIC_READ | GENERIC_WRITE,
0,
NULL,
CREATE_ALWAYS,
fileflags,
NULL
);
}while( h==INVALID_HANDLE_VALUE && cnt++ < 2 && (Sleep(100), 1) );
sqliteFree(zWide);
}else{
#if OS_WINCE
return SQLITE_NOMEM;
#else
int cnt = 0;
do{
h = CreateFileA(zFilename,
GENERIC_READ | GENERIC_WRITE,
0,
NULL,
CREATE_ALWAYS,
fileflags,
NULL
);
}while( h==INVALID_HANDLE_VALUE && cnt++ < 2 && (Sleep(100), 1) );
#endif /* OS_WINCE */
}
if( h==INVALID_HANDLE_VALUE ){
return SQLITE_CANTOPEN;
}
f.h = h;
#if OS_WINCE
................................................................................
}
/*
** Close a file.
*/
static int winClose(OsFile **pId){
winFile *pFile;
int rc = 1;
if( pId && (pFile = (winFile*)*pId)!=0 ){
int rc, cnt = 0;
TRACE2("CLOSE %d\n", pFile->h);
do{
rc = CloseHandle(pFile->h);
}while( rc==0 && cnt++ < 3 && (Sleep(100), 1) );
#if OS_WINCE
winceDestroyLock(pFile);
if( pFile->zDeleteOnClose ){
DeleteFileW(pFile->zDeleteOnClose);
sqliteFree(pFile->zDeleteOnClose);
}
#endif
OpenCounter(-1);
sqliteFree(pFile);
*pId = 0;
}
return rc ? SQLITE_OK : SQLITE_IOERR;
}
/*
** Read data from a file into a buffer. Return SQLITE_OK if all
** bytes were read successfully and SQLITE_IOERR if anything goes
** wrong.
*/
|