154 lines
3.1 KiB
C++
154 lines
3.1 KiB
C++
/****************************************************************************
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bcw.cpp
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Owner: Srinik
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Copyright (c) 1995 Microsoft Corporation
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This file contains code for BCW class which implements wrappers for IBindCtx
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and IRunningObjectTable. We use this object to trick the moniker binding
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code to create a new instance of the object (that the moniker is
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referring to) instead connecting to already running instance.
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****************************************************************************/
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// #include "hlmain.h"
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#include "bcw.h"
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ASSERTDATA
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/****************************************************************************
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Implementation of BCW methods.
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****************************************************************************/
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BCW::BCW(IBindCtx * pibc)
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{
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m_pibc = pibc;
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pibc->AddRef();
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m_cObjRef = 1;
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DllAddRef();
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}
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BCW::~BCW()
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{
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m_pibc->Release();
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DllRelease();
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}
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IBindCtx * BCW::Create(IBindCtx * pibc)
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{
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BCW * pbcw = new BCW(pibc);
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if (pbcw == NULL)
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return NULL;
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if (! pbcw->m_ROT.FInitROTPointer())
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{
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delete pbcw;
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return NULL;
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}
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return pbcw;
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}
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STDMETHODIMP BCW::QueryInterface(REFIID riid, void **ppvObj)
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{
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if (ppvObj == NULL)
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return E_INVALIDARG;
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if (riid == IID_IUnknown || riid == IID_IBindCtx)
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{
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*ppvObj = this;
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}
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else
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{
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*ppvObj = NULL;
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return E_NOINTERFACE;
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}
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((IUnknown *) *ppvObj)->AddRef();
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return NOERROR;
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}
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STDMETHODIMP_(ULONG) BCW::AddRef(void)
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{
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return ++m_cObjRef;
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}
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STDMETHODIMP_(ULONG) BCW::Release(void)
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{
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/* Decrement refcount, destroy object if refcount goes to zero.
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Return the new refcount. */
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if (!(--m_cObjRef))
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{
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delete this;
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return 0;
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}
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return m_cObjRef;
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}
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/****************************************************************************
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Implementation of BCW_ROT methods.
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****************************************************************************/
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/****************************************************************************
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BCW_ROT is the IRunningObjectTable imlementation of BCW_ROT.
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****************************************************************************/
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BCW_ROT::BCW_ROT()
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{
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Debug(m_cRef = 0);
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m_piROT = NULL;
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}
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BCW_ROT::~BCW_ROT()
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{
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if (m_piROT)
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m_piROT->Release();
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}
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BOOL_PTR BCW_ROT::FInitROTPointer(void)
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{
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if (m_piROT == NULL)
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{
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if (GetRunningObjectTable(NULL/*reserved*/, &m_piROT) == NOERROR)
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m_piROT->AddRef();
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}
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return (BOOL_PTR) (m_piROT);
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}
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inline BCW * BCW_ROT::PBCW()
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{
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return BACK_POINTER(this, m_ROT, BCW);
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}
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STDMETHODIMP BCW_ROT::QueryInterface(REFIID riid, void **ppvObj)
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{
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if (riid == IID_IUnknown || riid == IID_IRunningObjectTable)
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{
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*ppvObj = this;
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}
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else
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{
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*ppvObj = NULL;
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return E_NOINTERFACE;
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}
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((IUnknown *) *ppvObj)->AddRef();
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return NOERROR;
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}
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STDMETHODIMP_(ULONG) BCW_ROT::AddRef(void)
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{
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return PBCW()->AddRef();
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}
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STDMETHODIMP_(ULONG) BCW_ROT::Release(void)
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{
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return PBCW()->Release();
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}
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