115 lines
2.8 KiB
C
115 lines
2.8 KiB
C
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// Copyright (c) 1997-1999 Microsoft Corporation
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///////////////////////////////////////////////////////////////////
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//
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// RefClint.h : Refresher client header file
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//
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// Created by a-dcrews and sanjes
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//
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///////////////////////////////////////////////////////////////////
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#ifndef _REFCLINT_H_
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#define _REFCLINT_H_
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#include <wbemcli.h>
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///////////////////////////////////////////////////////////////////
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//
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// Globals and constants
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//
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///////////////////////////////////////////////////////////////////
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const long clNumInstances = 5; // The number of Win32_BasicHiPerf instances
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const DWORD cdwNumReps = 100; // The number of sample refreshes
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///////////////////////////////////////////////////////////////////
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//
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// CRefresherMember
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//
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// This class facilitates the management of objects or enumerators
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// that have been added to the refresher and the unique ID assigned
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// to them.
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//
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///////////////////////////////////////////////////////////////////
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template<class T>
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class CRefresherMember
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{
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T* m_pMember;
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long m_lID;
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public:
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CRefresherMember() : m_pMember( NULL ), m_lID( 0 ) {}
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virtual ~CRefresherMember() { if ( NULL != m_pMember) m_pMember->Release(); }
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void Set(T* pMember, long lID);
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void Reset();
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T* GetMember();
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long GetID(){ return m_lID; }
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};
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template <class T> inline void CRefresherMember<T>::Set(T* pMember, long lID)
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{
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if ( NULL != pMember )
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pMember->AddRef();
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m_pMember = pMember;
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m_lID = lID;
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}
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template <class T> inline void CRefresherMember<T>::Reset()
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{
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if (NULL != m_pMember)
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m_pMember->Release();
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m_pMember = NULL;
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m_lID = 0;
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}
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template <class T> inline T* CRefresherMember<T>::GetMember()
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{
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if ( NULL != m_pMember )
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m_pMember->AddRef();
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return m_pMember;
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}
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///////////////////////////////////////////////////////////////////
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//
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// CRefresher
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//
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// This class encapsulates the basic functionality of a WMI client
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// using the high performance refresher interface.
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//
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///////////////////////////////////////////////////////////////////
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class CRefresher
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{
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IWbemServices* m_pNameSpace; // A pointer to the namespace
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IWbemRefresher* m_pRefresher; // A pointer to the refresher
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IWbemConfigureRefresher* m_pConfig; // A pointer to the refresher's manager
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CRefresherMember<IWbemHiPerfEnum> m_Enum; // The enumerator added to the refresher
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CRefresherMember<IWbemObjectAccess> m_Instances[clNumInstances]; // The instances added to the refreshrer
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protected:
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HRESULT SetHandles(WCHAR * wscClass);
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public:
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CRefresher();
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virtual ~CRefresher();
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HRESULT Initialize(IWbemServices* pNameSpace, WCHAR * wcsClass);
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HRESULT AddObjects(WCHAR * wcsClass);
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HRESULT RemoveObjects();
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HRESULT EnumerateObjectData();
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HRESULT AddEnum(WCHAR * wcsClass);
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HRESULT RemoveEnum();
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HRESULT EnumerateEnumeratorData();
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HRESULT Refresh();
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};
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#endif //_REFCLINT_H_
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