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06-24-2009, 09:13 AM
| #1 |
| Registered User Join Date: Jun 2009
Posts: 5
| GetDiskFreeSpace Windows API fails on windows 2000 I need to calculate the cluster size using my program. Windows provides API - GetDiskFreeSpace, to serve the purpose. But the API fails on windows 2000 host giving the following error- -------------------- ERROR_DIR_NOT_ROOT 144 (0x90) :The directory is not a subdirectory of the root directory. -------------------- The same program runs successfully on windows 2003 and above. Does anyone knows the solution of this problem? |
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06-24-2009, 09:55 AM
| #2 |
| and the hat of vanishing  Join Date: Aug 2001 Location: The edge of the known universe
Posts: 21,214
| The error message seems pretty self-explanatory to me.
__________________ If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut. Up to 8Mb PlusNet broadband from only £5.99 a month! |
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06-27-2009, 02:32 PM
| #3 |
| Algorithm Dissector  Join Date: Dec 2005 Location: New Zealand
Posts: 2,475
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06-29-2009, 12:15 AM
| #4 | |
| Registered User Join Date: Jun 2009
Posts: 5
| Quote:
I can't use GetDiskFreeSpaceEx because i need cluster size. Is there any way to calculate cluster size, other than GetDiskFreeSpace ? Last edited by dnyampawar; 06-29-2009 at 12:19 AM. | |
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06-29-2009, 12:18 AM
| #5 |
| Registered User Join Date: Jun 2009
Posts: 5
| Hi, Just to make the qustion more clear- Here is my code- ----------------------------------------------------------------------------------------------------------- Code: #include "stdafx.h"
int _tmain(int argc, _TCHAR* argv[])
{
DWORD SectorsPerCluster, BytesPerSector, FreeClusters, TotalClusters;
if (GetDiskFreeSpace(argv[1], &SectorsPerCluster, &BytesPerSector, &FreeClusters, &TotalClusters))
{
printf ("GetDiskFreeSpace Success\n");
}
else
{
printf ("GetDiskFreeSpace Failed : '%d'\n", GetLastError ());
}
return 0;
}
basically, using win2k host , i am trying to access file/directory resided on netapp volume from using UNC path. argv[1] is my case is " \\?\UNC\netapp2704\aniket\tempQtree\" for which the API is failing(error code 144). whereas, I am able to access " \\netapp2704\aniket\tempQtree\" from file explorer. "tempQtree" is qtree on share "aniket". The GetDiskFreeSpace API succeeds on the path " \\?\UNC\netapp2704\aniket\ ". Hope this clears my question. Please let me know if any additional inputs required. |
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06-29-2009, 02:17 AM
| #6 | |
| Mysterious C++ User Join Date: Oct 2007
Posts: 14,099
| GetDiskFreeSpace works on drives, not directories. So it must be a root directory, as your results clearly shows.
__________________ Using: Microsoft Windows™ 7 Professional (x64), Microsoft Visual Studio™ 2008 Team System I dedicated my life to helping others. This is only a small sample of what they said: "Thanks Elysia. You're a programming master! How the hell do you know every thing?" Quoted... at least once. Quote:
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06-29-2009, 02:46 AM
| #7 | |
| Registered User Join Date: Jun 2009
Posts: 5
| Quote:
GetDiskFreeSpace works fine on directories too with Windows 2003 and above. It is giving me the correct output on the same path mentioned earlier. here is the output - ---------------------------- C:\Documents and Settings\Dnyaneshwar_Pawar\My Documents\Visual Studio Projects\ GetDiskFreeSpace\Debug>GetDiskFreeSpace.exe \\?\UNC\netapp2704\aniket\tempQtree\ GetDiskFreeSpace Success SectorsPerCluster = 8 BytesPerSector = 733106 TotalClusters = 12582912 ---------------------------- Thanks! | |
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07-09-2009, 03:39 AM
| #8 |
| Registered User Join Date: Jun 2009
Posts: 5
|  anybody?? |
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