106 lines
1.8 KiB
C++
106 lines
1.8 KiB
C++
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#include "private.h"
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#include "factory.h"
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CClassFactory::CClassFactory(const CFactoryData *pFactoryData) :
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m_pFactoryData(pFactoryData)
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{
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ASSERT(NULL != m_pFactoryData);
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m_cRef = 1;
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DllAddRef();
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}
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CClassFactory::~CClassFactory()
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{
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DllRelease();
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}
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// IUnknown members
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STDMETHODIMP CClassFactory::QueryInterface(
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REFIID riid, void **ppv)
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{
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if (NULL == ppv)
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{
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return E_INVALIDARG;
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}
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*ppv=NULL;
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// Validate requested interface
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if( IID_IUnknown == riid || IID_IClassFactory == riid )
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*ppv = (IClassFactory *)this;
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// Addref through the interface
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if( NULL != *ppv ) {
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((LPUNKNOWN)*ppv)->AddRef();
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return S_OK;
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}
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return E_NOINTERFACE;
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}
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STDMETHODIMP_(ULONG) CClassFactory::AddRef()
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{
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return ++m_cRef;
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}
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STDMETHODIMP_(ULONG) CClassFactory::Release()
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{
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if( 0L != --m_cRef )
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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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// IClassFactory members
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STDMETHODIMP CClassFactory::CreateInstance(
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LPUNKNOWN punkOuter, REFIID riid, void **ppv)
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{
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HRESULT hr;
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if ((NULL == ppv) ||
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(punkOuter && (IID_IUnknown != riid)))
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{
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return E_INVALIDARG;
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}
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*ppv = NULL;
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if ((NULL != punkOuter) &&
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!(m_pFactoryData->m_dwFlags & FD_ALLOWAGGREGATION))
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{
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return CLASS_E_NOAGGREGATION;
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}
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IUnknown *punk;
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hr = m_pFactoryData->m_pCreateProc(punkOuter, &punk);
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if (SUCCEEDED(hr))
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{
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hr = punk->QueryInterface(riid, ppv);
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punk->Release();
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}
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ASSERT((SUCCEEDED(hr) && (NULL != *ppv)) ||
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(FAILED(hr) && (NULL == *ppv)))
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return hr;
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}
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STDMETHODIMP CClassFactory::LockServer(BOOL fLock)
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{
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if (fLock)
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{
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DllLock();
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}
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else
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{
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DllUnlock();
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}
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return S_OK;
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}
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