140 lines
3.5 KiB
C++
140 lines
3.5 KiB
C++
// DataElementStatusListener.cpp: implementation of the CDataElementStatusListener class.
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//
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//////////////////////////////////////////////////////////////////////
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#include "stdafx.h"
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#include "snapin.h"
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#include "DataElementStatusListener.h"
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#include "HMDataElementStatus.h"
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#ifdef _DEBUG
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#undef THIS_FILE
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static char THIS_FILE[]=__FILE__;
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#define new DEBUG_NEW
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#endif
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IMPLEMENT_DYNCREATE(CDataElementStatusListener,CWbemEventListener)
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//////////////////////////////////////////////////////////////////////
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// Construction/Destruction
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//////////////////////////////////////////////////////////////////////
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CDataElementStatusListener::CDataElementStatusListener()
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{
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}
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CDataElementStatusListener::~CDataElementStatusListener()
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{
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Destroy();
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}
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/////////////////////////////////////////////////////////////////////////////
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// Create/Destroy
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/////////////////////////////////////////////////////////////////////////////
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bool CDataElementStatusListener::Create()
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{
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TRACEX(_T("CDataElementStatusListener::Create\n"));
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// first create the unsecured apartment
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HRESULT hr = S_OK;
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IWbemObjectSink* pSink = (IWbemObjectSink*)GetInterface(&IID_IWbemObjectSink);
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ASSERT(pSink);
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CString sSystemName = m_pHMObject->GetSystemName();
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if( s_pIUnsecApartment == NULL )
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{
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hr = CreateUnSecuredApartment();
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if( !GfxCheckPtr(s_pIUnsecApartment,IUnsecuredApartment) || !CHECKHRESULT(hr) )
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{
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TRACE(_T("FAILED : CDataElementStatusListener::CreateUnSecuredApartment failed.\n"));
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return false;
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}
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}
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ASSERT(s_pIUnsecApartment);
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// second, create the stub sink for this listener's IWbemObjectSink
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IUnknown* pStubUnk = NULL;
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ASSERT(s_pIUnsecApartment);
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hr = s_pIUnsecApartment->CreateObjectStub(pSink, &pStubUnk);
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if( pStubUnk == NULL || !CHECKHRESULT(hr) )
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{
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TRACE(_T("FAILED : Failed to create Stub Sink!\n"));
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return false;
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}
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ASSERT(pStubUnk);
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hr = pStubUnk->QueryInterface(IID_IWbemObjectSink, (LPVOID*)&m_pStubSink);
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pStubUnk->Release();
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if( !GfxCheckPtr(m_pStubSink,IWbemObjectSink) || !CHECKHRESULT(hr) )
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{
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TRACE(_T("FAILED : Failed to QI for IWbemObjectSink !\n"));
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return false;
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}
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ASSERT(m_pStubSink);
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// third, call connection manager to execute the query
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CString sQuery;
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sQuery.Format(IDS_STRING_STATUS_QUERY_FMT,IDS_STRING_MOF_HMDE_STATUS,GetObjectPtr()->GetGuid());
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if( !CHECKHRESULT(hr = CnxExecQueryAsync(sSystemName,sQuery,m_pStubSink)) )
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{
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TRACE(_T("FAILED : CConnectionManager::RegisterEventNotification failed!\n"));
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}
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return true;
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}
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void CDataElementStatusListener::Destroy()
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{
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TRACEX(_T("CDataElementStatusListener::Destroy\n"));
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if( m_pStubSink )
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{
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CnxRemoveConnection(m_pHMObject->GetName(),m_pStubSink);
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m_pStubSink->Release();
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m_pStubSink = NULL;
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}
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if( s_lObjCount == 0 && s_pIUnsecApartment )
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{
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s_pIUnsecApartment->Release();
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s_pIUnsecApartment = NULL;
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}
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}
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//////////////////////////////////////////////////////////////////////
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// Event Processing Members
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//////////////////////////////////////////////////////////////////////
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HRESULT CDataElementStatusListener::ProcessEventClassObject(IWbemClassObject* pClassObject)
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{
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ASSERT(pClassObject);
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if( pClassObject == NULL )
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{
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return E_FAIL;
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}
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HRESULT hr = S_OK;
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CHMDataElementStatus des;
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if( ! CHECKHRESULT(hr = des.Create(pClassObject)) )
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{
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return hr;
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}
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des.m_sSystemName = GetObjectPtr()->GetSystemName();
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des.GetAllProperties();
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return hr;
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} |