Source code of Windows XP (NT5)
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//-----------------------------------------------------------------------------
//
// File: WMIClass.CPP
// Copyright (c) 1994-2001 Microsoft Corporation, All Rights Reserved
// All rights reserved.
//
//
// Implementation file for the WMI MOF parser IClassFactory object.
//
//-----------------------------------------------------------------------------
#include "stdafx.h"
#include "WMIparse.h"
#include "resource.h"
#include "WMIlprs.h"
#include "WMIclass.h"
CWMILocClassFactory::CWMILocClassFactory()
{
m_uiRefCount = 0;
AddRef();
IncrementClassCount();
}
#ifdef _DEBUG
void
CWMILocClassFactory::AssertValid(void)
const
{
CLObject::AssertValid();
}
void
CWMILocClassFactory::Dump(
CDumpContext &dc)
const
{
CLObject::Dump(dc);
}
#endif // _DEBUG
ULONG
CWMILocClassFactory::AddRef(void)
{
return ++m_uiRefCount;
}
ULONG
CWMILocClassFactory::Release(void)
{
LTASSERT(m_uiRefCount != 0);
m_uiRefCount--;
if (m_uiRefCount == 0)
{
delete this;
return 0;
}
return m_uiRefCount;
}
HRESULT
CWMILocClassFactory::QueryInterface(
REFIID iid,
LPVOID *ppvObj)
{
SCODE sc = E_NOINTERFACE;
*ppvObj = NULL;
if (iid == IID_IUnknown)
{
*ppvObj = (IUnknown *)this;
sc = S_OK;
}
else if (iid == IID_IClassFactory)
{
*ppvObj = (IClassFactory *)this;
sc = S_OK;
}
if (sc == S_OK)
{
AddRef();
}
return ResultFromScode(sc);
}
HRESULT
CWMILocClassFactory::CreateInstance(
LPUNKNOWN pUnknown,
REFIID iid,
LPVOID *ppvObj)
{
SCODE sc = E_UNEXPECTED;
*ppvObj = NULL;
if (pUnknown != NULL)
{
sc = CLASS_E_NOAGGREGATION;
}
else
{
try
{
CWMILocParser *pParser;
pParser = new CWMILocParser;
sc = pParser->QueryInterface(iid, ppvObj);
pParser->Release();
}
catch (CMemoryException *pMemoryException)
{
sc = E_OUTOFMEMORY;
pMemoryException->Delete();
}
}
return ResultFromScode(sc);
}
HRESULT
CWMILocClassFactory::LockServer(
BOOL)
{
return E_NOTIMPL;
}
CWMILocClassFactory::~CWMILocClassFactory()
{
LTASSERT(m_uiRefCount == 0);
DEBUGONLY(AssertValid());
DecrementClassCount();
}