176 lines
4.1 KiB
C++
176 lines
4.1 KiB
C++
//***************************************************************************
|
|
//
|
|
// Copyright (c) 1997-1999 Microsoft Corporation
|
|
//
|
|
// CLASSFAC.CPP
|
|
//
|
|
// alanbos 13-Feb-98 Created.
|
|
//
|
|
// Contains the class factory. This creates objects when
|
|
// connections are requested.
|
|
//
|
|
//***************************************************************************
|
|
|
|
#include "precomp.h"
|
|
|
|
//***************************************************************************
|
|
//
|
|
// CXMLTFactory::CXMLTFactory
|
|
//
|
|
// DESCRIPTION:
|
|
//
|
|
// Constructor
|
|
//
|
|
//***************************************************************************
|
|
|
|
CXMLTFactory::CXMLTFactory()
|
|
{
|
|
m_cRef=0L;
|
|
return;
|
|
}
|
|
|
|
//***************************************************************************
|
|
//
|
|
// CXMLTFactory::~CXMLTFactory
|
|
//
|
|
// DESCRIPTION:
|
|
//
|
|
// Destructor
|
|
//
|
|
//***************************************************************************
|
|
|
|
CXMLTFactory::~CXMLTFactory(void)
|
|
{
|
|
return;
|
|
}
|
|
|
|
//***************************************************************************
|
|
//
|
|
// CXMLTFactory::QueryInterface
|
|
// CXMLTFactory::AddRef
|
|
// CXMLTFactory::Release
|
|
//
|
|
// Purpose: Standard Ole routines needed for all interfaces
|
|
//
|
|
//***************************************************************************
|
|
|
|
|
|
STDMETHODIMP CXMLTFactory::QueryInterface(REFIID riid
|
|
, LPVOID *ppv)
|
|
{
|
|
*ppv=NULL;
|
|
|
|
if (IID_IUnknown==riid || IID_IClassFactory==riid)
|
|
*ppv=this;
|
|
|
|
if (NULL!=*ppv)
|
|
{
|
|
((LPUNKNOWN)*ppv)->AddRef();
|
|
return NOERROR;
|
|
}
|
|
|
|
return ResultFromScode(E_NOINTERFACE);
|
|
}
|
|
|
|
STDMETHODIMP_(ULONG) CXMLTFactory::AddRef(void)
|
|
{
|
|
long l = InterlockedIncrement(&m_cRef);
|
|
return l;
|
|
}
|
|
|
|
STDMETHODIMP_(ULONG) CXMLTFactory::Release(void)
|
|
{
|
|
long l = InterlockedDecrement(&m_cRef);
|
|
if (0L!=l)
|
|
return l;
|
|
|
|
delete this;
|
|
return 0L;
|
|
}
|
|
|
|
//***************************************************************************
|
|
//
|
|
// SCODE CXMLTFactory::CreateInstance
|
|
//
|
|
// Description:
|
|
//
|
|
// Instantiates a Translator object returning an interface pointer.
|
|
//
|
|
// Parameters:
|
|
//
|
|
// pUnkOuter LPUNKNOWN to the controlling IUnknown if we are
|
|
// being used in an aggregation.
|
|
// riid REFIID identifying the interface the caller
|
|
// desires to have for the new object.
|
|
// ppvObj PPVOID in which to store the desired
|
|
// interface pointer for the new object.
|
|
//
|
|
// Return Value:
|
|
// HRESULT NOERROR if successful, otherwise E_NOINTERFACE
|
|
// if we cannot support the requested interface.
|
|
//***************************************************************************
|
|
|
|
STDMETHODIMP CXMLTFactory::CreateInstance (
|
|
|
|
IN LPUNKNOWN pUnkOuter,
|
|
IN REFIID riid,
|
|
OUT PPVOID ppvObj
|
|
)
|
|
{
|
|
IUnknown * pObj;
|
|
HRESULT hr;
|
|
|
|
*ppvObj=NULL;
|
|
|
|
// This object doesnt support aggregation.
|
|
if (NULL!=pUnkOuter)
|
|
return ResultFromScode(CLASS_E_NOAGGREGATION);
|
|
|
|
pObj = (IWmiXMLTranslator *) new CXMLTranslator;
|
|
|
|
if (NULL == pObj)
|
|
return ResultFromScode(E_OUTOFMEMORY);;
|
|
|
|
hr = pObj->QueryInterface(riid, ppvObj);
|
|
|
|
//Kill the object if initial creation or Init failed.
|
|
if ( FAILED(hr) )
|
|
delete pObj;
|
|
return hr;
|
|
}
|
|
|
|
//***************************************************************************
|
|
//
|
|
// SCODE CXMLTFactory::LockServer
|
|
//
|
|
// Description:
|
|
//
|
|
// Increments or decrements the lock count of the DLL. If the
|
|
// lock count goes to zero and there are no objects, the DLL
|
|
// is allowed to unload. See DllCanUnloadNow.
|
|
//
|
|
// Parameters:
|
|
//
|
|
// fLock BOOL specifying whether to increment or
|
|
// decrement the lock count.
|
|
//
|
|
// Return Value:
|
|
//
|
|
// HRESULT NOERROR always.
|
|
//***************************************************************************
|
|
|
|
|
|
STDMETHODIMP CXMLTFactory::LockServer(IN BOOL fLock)
|
|
{
|
|
if (fLock)
|
|
InterlockedIncrement((long *)&g_cLock);
|
|
else
|
|
InterlockedDecrement((long *)&g_cLock);
|
|
|
|
return NOERROR;
|
|
}
|
|
|
|
|
|
|
|
|