630 lines
15 KiB
C++
630 lines
15 KiB
C++
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//+---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1999.
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//
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// File: I E N U M . C P P
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//
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// Contents: Implements the IEnumNetCfgBindingInterface,
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// IEnumNetCfgBindingPath, and IEnumNetCfgComponent COM
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// interfaces.
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//
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// Notes:
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//
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// Author: shaunco 15 Jan 1999
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//
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//----------------------------------------------------------------------------
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#include <pch.h>
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#pragma hdrstop
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#include "ibind.h"
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#include "ienum.h"
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#include "ncatl.h"
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#include "netcfg.h"
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/*
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A helper function for finishing up the semantics of a IEnumXXX::Next or
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IEnumXXX::Skip. Return S_OK if no error passed in and celt == celtFetched.
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Return S_FALSE if no error passed in and celt != celtFetched. If returning
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an error, release celt IUnknowns from rgelt.
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Returns: S_OK, S_FALSE, or an error code
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Author: shaunco 13 Jan 1999
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*/
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HRESULT
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HrFinishNextOrSkipContract (
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IN HRESULT hr,
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IN ULONG celtFetched,
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IN ULONG celt,
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IN OUT IUnknown** rgelt,
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OUT ULONG* pceltFetched)
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{
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if (S_OK == hr)
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{
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if (pceltFetched)
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{
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*pceltFetched = celtFetched;
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}
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hr = (celtFetched == celt) ? S_OK : S_FALSE;
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}
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else
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{
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// For any failures, we need to release what we were about to return.
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// Set any output parameters to NULL.
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//
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if (rgelt)
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{
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for (ULONG ulIndex = 0; ulIndex < celt; ulIndex++)
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{
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ReleaseObj (rgelt[ulIndex]);
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rgelt[ulIndex] = NULL;
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}
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}
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if (pceltFetched)
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{
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*pceltFetched = 0;
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}
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}
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return hr;
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}
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//+---------------------------------------------------------------------------
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// CImplIEnumNetCfgBindingInterface -
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//
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/*
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Create an instance of a binding interface enumerator.
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Returns: S_OK or an error code
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Author: shaunco 13 Jan 1999
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*/
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// static
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HRESULT
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CImplIEnumNetCfgBindingInterface::HrCreateInstance (
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IN CImplINetCfg* pINetCfg,
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IN CImplINetCfgBindingPath* pIPath,
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OUT IEnumNetCfgBindingInterface** ppIEnum)
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{
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HRESULT hr = E_OUTOFMEMORY;
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CImplIEnumNetCfgBindingInterface* pObj;
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pObj = new CComObject <CImplIEnumNetCfgBindingInterface>;
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if (pObj)
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{
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hr = S_OK;
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// Initialize our members.
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//
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pObj->m_pIPath = pIPath;
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// Do the standard CComCreator::CreateInstance stuff.
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//
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pObj->SetVoid (NULL);
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pObj->InternalFinalConstructAddRef ();
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hr = pObj->FinalConstruct ();
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pObj->InternalFinalConstructRelease ();
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// The last thing we do is addref any interfaces we hold.
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// We only do this if we are returning success.
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//
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if (S_OK == hr)
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{
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hr = pObj->QueryInterface (IID_IEnumNetCfgBindingInterface,
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(VOID**)ppIEnum);
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// The last thing we do is addref any interfaces we hold.
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// We only do this if we are returning success.
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//
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if (S_OK == hr)
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{
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AddRefObj (pIPath->GetUnknown());
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pObj->HoldINetCfg (pINetCfg);
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}
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}
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if (S_OK != hr)
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{
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delete pObj;
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}
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}
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TraceHr (ttidError, FAL, hr, FALSE,
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"CImplIEnumNetCfgBindingInterface::HrCreateInstance");
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return hr;
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}
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VOID
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CImplIEnumNetCfgBindingInterface::FinalRelease ()
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{
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AssertH (m_pIPath);
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ReleaseObj (m_pIPath->GetUnknown());
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CImplINetCfgHolder::FinalRelease();
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}
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HRESULT
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CImplIEnumNetCfgBindingInterface::HrNextOrSkip (
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IN ULONG celt,
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OUT INetCfgBindingInterface** rgelt,
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OUT ULONG* pceltFetched)
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{
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HRESULT hr;
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Assert (m_unIndex >= 1);
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// Important to initialize rgelt so that in case we fail, we can
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// release only what we put in rgelt.
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//
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if (rgelt)
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{
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ZeroMemory (rgelt, sizeof (*rgelt) * celt);
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}
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hr = HrLockAndTestForValidInterface (IF_DEFAULT);
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if (S_OK == hr)
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{
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// Enumerate the requested number of elements or stop short
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// if we don't have that many left to enumerate.
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//
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ULONG celtFetched = 0;
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while ((S_OK == hr)
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&& (celtFetched < celt)
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&& (m_unIndex < m_pIPath->m_cpIComp))
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{
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if (rgelt)
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{
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hr = CImplINetCfgBindingInterface::HrCreateInstance (
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m_pINetCfg,
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(CImplINetCfgComponent*)m_pIPath->
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m_papIComp[m_unIndex-1],
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(CImplINetCfgComponent*)m_pIPath->
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m_papIComp[m_unIndex],
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rgelt + celtFetched);
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}
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celtFetched++;
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m_unIndex++;
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}
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Unlock();
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hr = HrFinishNextOrSkipContract (hr, celtFetched, celt,
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reinterpret_cast<IUnknown**>(rgelt), pceltFetched);
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}
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TraceHr (ttidError, FAL, hr, S_FALSE == hr,
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"CImplIEnumNetCfgBindingInterface::HrNextOrSkip");
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return hr;
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}
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STDMETHODIMP
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CImplIEnumNetCfgBindingInterface::Next (
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IN ULONG celt,
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OUT INetCfgBindingInterface** rgelt,
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OUT ULONG* pceltFetched)
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{
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HRESULT hr;
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// Validate parameters.
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//
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if (!rgelt || (!pceltFetched && (1 != celt)))
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{
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hr = E_POINTER;
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}
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else if (rgelt && IsBadWritePtr(rgelt, celt * sizeof(*rgelt)))
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{
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hr = E_INVALIDARG;
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}
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else
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{
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hr = HrNextOrSkip (celt, rgelt, pceltFetched);
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}
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TraceHr (ttidError, FAL, hr, S_FALSE == hr,
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"CImplIEnumNetCfgBindingInterface::Next");
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return hr;
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}
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STDMETHODIMP
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CImplIEnumNetCfgBindingInterface::Skip (
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IN ULONG celt)
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{
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HRESULT hr = HrNextOrSkip (celt, NULL, NULL);
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TraceHr (ttidError, FAL, hr, S_FALSE == hr,
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"CImplIEnumNetCfgBindingInterface::Skip");
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return hr;
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}
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STDMETHODIMP
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CImplIEnumNetCfgBindingInterface::Reset ()
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{
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Lock();
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Assert (m_pIPath);
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m_unIndex = 1;
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Unlock();
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return S_OK;
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}
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STDMETHODIMP
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CImplIEnumNetCfgBindingInterface::Clone (
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OUT IEnumNetCfgBindingInterface** ppIEnum)
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{
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return E_NOTIMPL;
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}
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//+---------------------------------------------------------------------------
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// CImplIEnumNetCfgBindingPath -
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//
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// static
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HRESULT
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CImplIEnumNetCfgBindingPath::HrCreateInstance (
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IN CImplINetCfg* pINetCfg,
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IN const CBindingSet* pBindSet OPTIONAL,
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IN DWORD dwFlags,
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OUT CImplIEnumNetCfgBindingPath** ppIEnum)
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{
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HRESULT hr = E_OUTOFMEMORY;
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Assert (dwFlags);
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if (pBindSet)
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{
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pINetCfg->m_pNetConfig->Core.DbgVerifyBindingSet (pBindSet);
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}
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CImplIEnumNetCfgBindingPath* pObj;
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pObj = new CComObject <CImplIEnumNetCfgBindingPath>;
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if (pObj)
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{
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hr = S_OK;
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// Initialize our members.
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//
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if (dwFlags & EBPC_TAKE_OWNERSHIP)
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{
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Assert (pBindSet);
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pObj->m_pBindSet = pBindSet;
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pObj->m_iter = pBindSet->begin();
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}
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else if (dwFlags & EBPC_COPY_BINDSET)
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{
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Assert (pBindSet);
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hr = pObj->m_InternalBindSet.HrCopyBindingSet(pBindSet);
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pObj->m_pBindSet = &pObj->m_InternalBindSet;
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pObj->m_iter = pObj->m_InternalBindSet.begin();
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}
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else
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{
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Assert (dwFlags & EBPC_CREATE_EMPTY);
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pObj->m_pBindSet = &pObj->m_InternalBindSet;
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pObj->m_iter = pObj->m_InternalBindSet.begin();
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}
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if (S_OK == hr)
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{
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// Do the standard CComCreator::CreateInstance stuff.
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//
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pObj->SetVoid (NULL);
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pObj->InternalFinalConstructAddRef ();
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hr = pObj->FinalConstruct ();
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pObj->InternalFinalConstructRelease ();
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// The last thing we do is addref any interfaces we hold.
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// We only do this if we are returning success.
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//
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if (S_OK == hr)
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{
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pObj->HoldINetCfg (pINetCfg);
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AddRefObj (pObj->GetUnknown());
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*ppIEnum = pObj;
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}
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}
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if (S_OK != hr)
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{
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delete pObj;
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}
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}
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if ((S_OK != hr) && (dwFlags & EBPC_TAKE_OWNERSHIP))
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{
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delete pBindSet;
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}
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TraceHr (ttidError, FAL, hr, FALSE,
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"CImplIEnumNetCfgBindingPath::HrCreateInstance");
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return hr;
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}
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HRESULT
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CImplIEnumNetCfgBindingPath::HrNextOrSkip (
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IN ULONG celt,
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OUT INetCfgBindingPath** rgelt,
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OUT ULONG* pceltFetched)
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{
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HRESULT hr;
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Assert(m_iter >= m_pBindSet->begin());
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// Important to initialize rgelt so that in case we fail, we can
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// release only what we put in rgelt.
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//
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if (rgelt)
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{
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ZeroMemory (rgelt, sizeof (*rgelt) * celt);
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}
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hr = HrLockAndTestForValidInterface (IF_DEFAULT);
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if (S_OK == hr)
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{
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// Enumerate the requested number of elements or stop short
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// if we don't have that many left to enumerate.
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//
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ULONG celtFetched = 0;
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while ((S_OK == hr)
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&& (celtFetched < celt)
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&& (m_iter != m_pBindSet->end()))
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{
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// Don't return interfaces to bindpaths that contain
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// components that have had problem loading.
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//
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if (m_iter->FAllComponentsLoadedOkayIfLoadedAtAll())
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{
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if (rgelt)
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{
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hr = CImplINetCfgBindingPath::HrCreateInstance (
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m_pINetCfg,
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m_iter,
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rgelt + celtFetched);
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}
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celtFetched++;
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}
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m_iter++;
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}
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Unlock();
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hr = HrFinishNextOrSkipContract (hr, celtFetched, celt,
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reinterpret_cast<IUnknown**>(rgelt), pceltFetched);
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}
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TraceHr (ttidError, FAL, hr, S_FALSE == hr,
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"CImplIEnumNetCfgBindingPath::HrNextOrSkip");
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return hr;
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}
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STDMETHODIMP
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CImplIEnumNetCfgBindingPath::Next (
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IN ULONG celt,
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OUT INetCfgBindingPath** rgelt,
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OUT ULONG* pceltFetched)
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{
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HRESULT hr;
|
||
|
|
|
||
|
|
// Validate parameters.
|
||
|
|
//
|
||
|
|
if (!rgelt || (!pceltFetched && (1 != celt)))
|
||
|
|
{
|
||
|
|
hr = E_POINTER;
|
||
|
|
}
|
||
|
|
else if (rgelt && IsBadWritePtr(rgelt, celt * sizeof(*rgelt)))
|
||
|
|
{
|
||
|
|
hr = E_INVALIDARG;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
hr = HrNextOrSkip (celt, rgelt, pceltFetched);
|
||
|
|
}
|
||
|
|
TraceHr (ttidError, FAL, hr, S_FALSE == hr,
|
||
|
|
"CImplIEnumNetCfgBindingPath::Next");
|
||
|
|
return hr;
|
||
|
|
}
|
||
|
|
|
||
|
|
STDMETHODIMP
|
||
|
|
CImplIEnumNetCfgBindingPath::Skip (
|
||
|
|
IN ULONG celt)
|
||
|
|
{
|
||
|
|
HRESULT hr = HrNextOrSkip (celt, NULL, NULL);
|
||
|
|
|
||
|
|
TraceHr (ttidError, FAL, hr, S_FALSE == hr,
|
||
|
|
"CImplIEnumNetCfgBindingPath::Skip");
|
||
|
|
return hr;
|
||
|
|
}
|
||
|
|
|
||
|
|
STDMETHODIMP
|
||
|
|
CImplIEnumNetCfgBindingPath::Reset ()
|
||
|
|
{
|
||
|
|
Lock();
|
||
|
|
Assert (m_pBindSet);
|
||
|
|
m_iter = m_pBindSet->begin();
|
||
|
|
Unlock();
|
||
|
|
|
||
|
|
return S_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
STDMETHODIMP
|
||
|
|
CImplIEnumNetCfgBindingPath::Clone (
|
||
|
|
OUT IEnumNetCfgBindingPath** ppIEnum)
|
||
|
|
{
|
||
|
|
return E_NOTIMPL;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//+---------------------------------------------------------------------------
|
||
|
|
// CImplIEnumNetCfgComponent -
|
||
|
|
//
|
||
|
|
|
||
|
|
// static
|
||
|
|
HRESULT
|
||
|
|
CImplIEnumNetCfgComponent::HrCreateInstance (
|
||
|
|
IN CImplINetCfg* pINetCfg,
|
||
|
|
IN NETCLASS Class,
|
||
|
|
OUT IEnumNetCfgComponent** ppIEnum)
|
||
|
|
{
|
||
|
|
HRESULT hr = E_OUTOFMEMORY;
|
||
|
|
|
||
|
|
CImplIEnumNetCfgComponent* pObj;
|
||
|
|
pObj = new CComObject <CImplIEnumNetCfgComponent>;
|
||
|
|
if (pObj)
|
||
|
|
{
|
||
|
|
// Initialize our members.
|
||
|
|
//
|
||
|
|
pObj->m_unIndex = 0;
|
||
|
|
pObj->m_Class = Class;
|
||
|
|
|
||
|
|
// Do the standard CComCreator::CreateInstance stuff.
|
||
|
|
//
|
||
|
|
pObj->SetVoid (NULL);
|
||
|
|
pObj->InternalFinalConstructAddRef ();
|
||
|
|
hr = pObj->FinalConstruct ();
|
||
|
|
pObj->InternalFinalConstructRelease ();
|
||
|
|
|
||
|
|
if (S_OK == hr)
|
||
|
|
{
|
||
|
|
hr = pObj->QueryInterface (IID_IEnumNetCfgComponent,
|
||
|
|
(VOID**)ppIEnum);
|
||
|
|
|
||
|
|
// The last thing we do is addref any interfaces we hold.
|
||
|
|
// We only do this if we are returning success.
|
||
|
|
//
|
||
|
|
if (S_OK == hr)
|
||
|
|
{
|
||
|
|
pObj->HoldINetCfg (pINetCfg);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (S_OK != hr)
|
||
|
|
{
|
||
|
|
delete pObj;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
TraceHr (ttidError, FAL, hr, FALSE,
|
||
|
|
"CImplIEnumNetCfgComponent::HrCreateInstance");
|
||
|
|
return hr;
|
||
|
|
}
|
||
|
|
|
||
|
|
HRESULT
|
||
|
|
CImplIEnumNetCfgComponent::HrNextOrSkip (
|
||
|
|
IN ULONG celt,
|
||
|
|
OUT INetCfgComponent** rgelt,
|
||
|
|
OUT ULONG* pceltFetched)
|
||
|
|
{
|
||
|
|
HRESULT hr;
|
||
|
|
|
||
|
|
// Important to initialize rgelt so that in case we fail, we can
|
||
|
|
// release only what we put in rgelt.
|
||
|
|
//
|
||
|
|
if (rgelt)
|
||
|
|
{
|
||
|
|
ZeroMemory (rgelt, sizeof (*rgelt) * celt);
|
||
|
|
}
|
||
|
|
|
||
|
|
hr = HrLockAndTestForValidInterface (IF_DEFAULT);
|
||
|
|
if (S_OK == hr)
|
||
|
|
{
|
||
|
|
CComponentList* pComponents;
|
||
|
|
CComponent* pComponent;
|
||
|
|
|
||
|
|
pComponents = &m_pINetCfg->m_pNetConfig->Core.Components;
|
||
|
|
|
||
|
|
// Enumerate the requested number of elements or stop short
|
||
|
|
// if we don't have that many left to enumerate.
|
||
|
|
//
|
||
|
|
ULONG celtFetched = 0;
|
||
|
|
while ((S_OK == hr)
|
||
|
|
&& (celtFetched < celt)
|
||
|
|
&& (NULL != (pComponent = pComponents->PGetComponentAtIndex(
|
||
|
|
m_unIndex))))
|
||
|
|
{
|
||
|
|
// Don't return interfaces to components that have had
|
||
|
|
// problem loading.
|
||
|
|
//
|
||
|
|
if (((NC_INVALID == m_Class) ||
|
||
|
|
(m_Class == pComponent->Class())) &&
|
||
|
|
pComponent->Ext.FLoadedOkayIfLoadedAtAll())
|
||
|
|
{
|
||
|
|
if (rgelt)
|
||
|
|
{
|
||
|
|
hr = pComponent->HrGetINetCfgComponentInterface(
|
||
|
|
m_pINetCfg, rgelt + celtFetched);
|
||
|
|
}
|
||
|
|
|
||
|
|
celtFetched++;
|
||
|
|
}
|
||
|
|
|
||
|
|
m_unIndex++;
|
||
|
|
}
|
||
|
|
|
||
|
|
Unlock();
|
||
|
|
|
||
|
|
hr = HrFinishNextOrSkipContract (hr, celtFetched, celt,
|
||
|
|
reinterpret_cast<IUnknown**>(rgelt), pceltFetched);
|
||
|
|
}
|
||
|
|
|
||
|
|
TraceHr (ttidError, FAL, hr, S_FALSE == hr,
|
||
|
|
"CImplIEnumNetCfgComponent::HrNextOrSkip");
|
||
|
|
return hr;
|
||
|
|
}
|
||
|
|
|
||
|
|
STDMETHODIMP
|
||
|
|
CImplIEnumNetCfgComponent::Next (
|
||
|
|
IN ULONG celt,
|
||
|
|
OUT INetCfgComponent** rgelt,
|
||
|
|
OUT ULONG* pceltFetched)
|
||
|
|
{
|
||
|
|
HRESULT hr;
|
||
|
|
|
||
|
|
// Validate parameters.
|
||
|
|
//
|
||
|
|
if (!rgelt || (!pceltFetched && (1 != celt)))
|
||
|
|
{
|
||
|
|
hr = E_POINTER;
|
||
|
|
}
|
||
|
|
else if (rgelt && IsBadWritePtr(rgelt, celt * sizeof(*rgelt)))
|
||
|
|
{
|
||
|
|
hr = E_INVALIDARG;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
hr = HrNextOrSkip (celt, rgelt, pceltFetched);
|
||
|
|
}
|
||
|
|
TraceHr (ttidError, FAL, hr, S_FALSE == hr,
|
||
|
|
"CImplIEnumNetCfgComponent::Next");
|
||
|
|
return hr;
|
||
|
|
}
|
||
|
|
|
||
|
|
STDMETHODIMP
|
||
|
|
CImplIEnumNetCfgComponent::Skip (
|
||
|
|
IN ULONG celt)
|
||
|
|
{
|
||
|
|
HRESULT hr = HrNextOrSkip (celt, NULL, NULL);
|
||
|
|
|
||
|
|
TraceHr (ttidError, FAL, hr, S_FALSE == hr,
|
||
|
|
"CImplIEnumNetCfgComponent::Skip");
|
||
|
|
return hr;
|
||
|
|
}
|
||
|
|
|
||
|
|
STDMETHODIMP
|
||
|
|
CImplIEnumNetCfgComponent::Reset ()
|
||
|
|
{
|
||
|
|
Lock();
|
||
|
|
m_unIndex = 0;
|
||
|
|
Unlock();
|
||
|
|
|
||
|
|
return S_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
STDMETHODIMP
|
||
|
|
CImplIEnumNetCfgComponent::Clone (
|
||
|
|
OUT IEnumNetCfgComponent** ppIEnum)
|
||
|
|
{
|
||
|
|
return E_NOTIMPL;
|
||
|
|
}
|