Source code of Windows XP (NT5)
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///////////////////////////////////////////////////////////////////////////////
/* File: volume.cpp
Description: The CVolume class maintains information about a particular
disk volume. During initialization, the object determines if the
associated volume supports quotas. The object's client can then query
it for volume-specific quota information. Objects of this class are used
in the CStatistics class to store information about a user/volume
pair.
CVolume
Revision History:
Date Description Programmer
-------- --------------------------------------------------- ----------
07/01/97 Initial creation. BrianAu
*/
///////////////////////////////////////////////////////////////////////////////
#include <precomp.hxx>
#pragma hdrstop
#include "volume.h"
CVolume::CVolume(
TCHAR chLetter,
LPCTSTR pszDisplayName
) : m_chLetter(chLetter),
m_dwSerialNo(0),
m_strDisplayName(pszDisplayName),
m_bSupportsQuotas(FALSE)
{
TCHAR szVolume[] = TEXT("X:\\");
DWORD dwFsFlags = 0;
szVolume[0] = m_chLetter;
if (::GetVolumeInformation(szVolume, // i.e. "X:"
NULL, // Vol name, don't need it.
0, // Vol name buf len.
&m_dwSerialNo, // Serial number var ptr.
NULL, // Max component len var ptr.
&dwFsFlags, // File system flags var ptr.
NULL, // File sys name, don't need it.
0)) // File sys name buf len.
{
m_bSupportsQuotas = (0 != (dwFsFlags & FILE_VOLUME_QUOTAS));
}
else
{
DebugMsg(DM_ERROR,
TEXT("CVolume - GetVolumeInformation for \"%s\" failed with error %d"),
pszDisplayName, GetLastError());
}
}
CVolume::~CVolume(
VOID
)
{
}