136 lines
2.5 KiB
C++
136 lines
2.5 KiB
C++
//***************************************************************************
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//
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// Copyright (c) 1992-1999 Microsoft Corporation
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//
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// File: cwmiextcf.cpp
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//
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// Description :
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// ADs "Wbem Provider" class factory
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//
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// Part of : Wbem ADs Requester oledsreq.dll
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//
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// History:
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// corinaf 10/15/95 Created
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//
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//***************************************************************************
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#include "precomp.h"
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extern ULONG g_ulObjCount;
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CWMIExtensionCF::CWMIExtensionCF()
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{
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m_cRef=0L;
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g_ulObjCount++;
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}
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CWMIExtensionCF::~CWMIExtensionCF()
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{
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g_ulObjCount--;
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}
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//IUnknown methods
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STDMETHODIMP CWMIExtensionCF::QueryInterface(REFIID riid, LPVOID FAR *ppv)
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{
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*ppv=NULL;
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if (riid == IID_IUnknown || riid == IID_IClassFactory)
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*ppv=this;
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if (*ppv != NULL)
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{
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((LPUNKNOWN)*ppv)->AddRef();
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return NOERROR;
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}
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return E_NOINTERFACE;
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}
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STDMETHODIMP_(ULONG) CWMIExtensionCF::AddRef(void)
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{
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return ++m_cRef;
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}
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STDMETHODIMP_(ULONG) CWMIExtensionCF::Release(void)
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{
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if (--m_cRef != 0L)
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return m_cRef;
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delete this;
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return 0L;
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}
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//+---------------------------------------------------------------------------
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//
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// Function: CWMIExtensionCF::CreateInstance
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//
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// Synopsis:
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//
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// Arguments: [pUnkOuter]
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// [iid]
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// [ppv]
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//
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// Returns: HRESULT
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//
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// Modifies:
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//
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// History: 10/20/98 corinaf
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//----------------------------------------------------------------------------
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STDMETHODIMP
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CWMIExtensionCF::CreateInstance(IUnknown *pUnkOuter, REFIID riid, LPVOID *ppv)
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{
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HRESULT hr;
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IUnknown *pExtension = NULL;
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//Create the extension and get the IUnknown pointer to it
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hr = CWMIExtension::CreateExtension(pUnkOuter, (void **)&pExtension);
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if FAILED(hr)
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return hr;
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if (pExtension)
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{
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hr = pExtension->QueryInterface(riid, ppv);
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pExtension->Release();
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}
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else
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{
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*ppv = NULL;
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return E_OUTOFMEMORY;
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}
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return NOERROR;
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}
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//+---------------------------------------------------------------------------
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//
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// Function: CWbemProviderCF::LockServer
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//
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// Synopsis:
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//
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// Arguments: [fLock]
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//
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// Returns: HRESULT
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//
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// Modifies:
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//
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// History: 10/20/98 corinaf
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//----------------------------------------------------------------------------
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STDMETHODIMP CWMIExtensionCF::LockServer(BOOL fLock)
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{
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if (fLock)
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m_cRef++;
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else
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m_cRef--;
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return NOERROR;
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}
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