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Overview
Comment:Performance improvement and bug fix in sqlite3WinDelete(). (CVS 3445)
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SHA1: 46ac1ac2d10cf2f1ebfb8dd4bb9a2ccffd85e816
User & Date: drh 2006-09-26 00:34:18.000
Context
2006-09-26
00:37
Fix to the previous check-in. (CVS 3446) (check-in: 944d5f8120 user: drh tags: trunk)
00:34
Performance improvement and bug fix in sqlite3WinDelete(). (CVS 3445) (check-in: 46ac1ac2d1 user: drh tags: trunk)
2006-09-25
18:05
CVS malfunctioned on the previous check-in. Make sure the revision to date.c was received. Ticket #1991. (CVS 3444) (check-in: 433dac1f29 user: drh tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
Changes to src/os_win.c.
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int sqlite3WinDelete(const char *zFilename){
  WCHAR *zWide = utf8ToUnicode(zFilename);
  int cnt = 0;
  int rc;
  if( zWide ){
    do{
      rc = DeleteFileW(zWide);

    }while( rc==0 && cnt++ < MX_DELETION_ATTEMPTS && (Sleep(100), 1) );
    sqliteFree(zWide);
  }else{
#if OS_WINCE
    return SQLITE_NOMEM;
#else
    do{
      rc = DeleteFileA(zFilename);

    }while( rc==0 && cnt++ < MX_DELETION_ATTEMPTS && (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;








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int sqlite3WinDelete(const char *zFilename){
  WCHAR *zWide = utf8ToUnicode(zFilename);
  int cnt = 0;
  int rc;
  if( zWide ){
    do{
      rc = DeleteFileW(zWide);
    }while( rc==0 && GetFileAttributesW(zWide)!=0xffffffff 
            && cnt++ < MX_DELETION_ATTEMPTS && (Sleep(100), 1) );
    sqliteFree(zWide);
  }else{
#if OS_WINCE
    return SQLITE_NOMEM;
#else
    do{
      rc = DeleteFileA(zFilename);
    }while( rc==0 && GetFileAttributesA(zFilename)
            && cnt++ < MX_DELETION_ATTEMPTS && (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;
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