windows-server-2003/admin/wmi/wbem/winmgmt/coredll/svcq.h

/*++

Copyright (C) 1996-2001 Microsoft Corporation

Module Name:

    SVCQ.H

Abstract:

	Declarations for asynchronous request queue classes.

	Classes defined:

	CAsyncReq and derivatives    Asynchrnous requests to WINMGMT.
	CAsyncServiceQueue           The queue of such requests.

History:

	a-raymcc        16-Jul-96       Created.
	a-levn          12-Sep-96       Implemented a few requests.
								  Added LoadProviders

--*/

#ifndef _ASYNC_Q_H_
#define _ASYNC_Q_H_

class CWbemNamespace;
class CBasicObjectSink;
class CStdSink;
class CWbemObject;

//******************************************************************************
//******************************************************************************
//
//  class CAsyncReq
//
//  Represents an asynchrnous request to WINMGMT, such as GetObjectAsync.
//  This class is derived from CExecRequest (execq.h), a generic request for
//  execution queues. For more information on queues and requests, see execq.h
//
//******************************************************************************
//
//  Contructor
//
//  Every asynchrnous request has an IWbemObjectSink pointer associated with it.
//  In addition, assigns a unique integer to this object which becomes its
//  request handle.
//
//  PARAMETERS:
//
//      IWbemObjectSink* pHandler    The handler associated with this request.
//                                  AddRefs and stores this pointer.
//
//******************************************************************************
//
//  Destructor
//
//  Releases the stored handler.
//
//******************************************************************************
//
//  GetRequestHandle
//
//  Returns the unique request handle assigned to this request in constructor.
//
//  RETURN VALUES:
//
//      long
//
//******************************************************************************

class CAsyncReq : public CWbemRequest
{
protected:
    CStdSink *m_pHandler;
    long m_lRequestHandle;

    void SetRequestHandle(long lHandle) {m_lRequestHandle = lHandle;}
    void SetNoAuthentication(IWbemObjectSink* pHandler);
public:
    CAsyncReq(IWbemObjectSink* pHandler, IWbemContext* pContext,
                bool bSeparatelyThreaded = false);
    virtual ~CAsyncReq();
    virtual HRESULT Execute() = 0;

    virtual CWbemQueue* GetQueue();
    virtual BOOL IsInternal() {return TRUE;}
    void TerminateRequest(HRESULT hRes);
	HRESULT SetTaskHandle(_IWmiCoreHandle *phTask);
};

//******************************************************************************
//******************************************************************************
//
//  class CAsyncServiceQueue
//
//  This class represents the queue of asynchrnous requests into WINMGMT (every
//  request into WINMGMT becomes asynchronous, since synchronous methods call
//  asynchrnous ones and wait). There is almost no additional functionality
//  here, see CExecQueue in execq.h for all details
//
//******************************************************************************
//
//  Constructor
//
//  In addition to normal CExecQueue construction, launches the processing
//  thread by calling Run.
//
//******************************************************************************

class CAsyncServiceQueue : public CWbemQueue
{
private:
    BOOL m_bInit;
public:
    CAsyncServiceQueue(_IWmiArbitrator * pArb);
    HRESULT InitializeThread();
    void UninitializeThread();
    void IncThreadLimit();
    void DecThreadLimit();
    BOOL IsInit(){ return m_bInit; };
};



//******************************************************************************
//******************************************************************************
//
//  class CNamespaceReq
//
//  Another abstract class, albeit derived from CAsyncReq. This one is for
//  asynchrnous requests to a particular namespace.
//
//******************************************************************************
//
//  Constructor.
//
//  In addition to the CAsyncReq's IWbemObjectSink*, takes the
//  namespace pointer against which the request is to be executed. Most of
//  the time, the execute function calls one of Exec_... members of
//  CWbemNamespace.
//
//******************************************************************************
class CNamespaceReq : public CAsyncReq
{
protected:
    CWbemNamespace* m_pNamespace;
public:
    CNamespaceReq(CWbemNamespace* pNamespace, IWbemObjectSink* pHandler,
                    IWbemContext* pContext, bool bSeparatelyThreaded = false);
    virtual ~CNamespaceReq();
    virtual HRESULT Execute() = 0;  
    static WCHAR s_DumpBuffer[128];    
};


//******************************************************************************
//******************************************************************************
//
//  class CAsyncReq_DeleteClassAsync
//
//  Encapsulates a request to execute DeleteClassAsync against a particular
//  namespace. Does it by calling Exec_DeleteClass and converting the
//  results to the asynchrnous format.
//
//******************************************************************************
//
//  Constructor.
//
//  PARAMETERS:
//
//      IN CWbemNamespace* pNamespace    The namespace to execute against.
//      IN LPWSTR wszClass              The class to delete.
//      IN LONG lFlags                  Flags
//      IN IWbemObjectSink* pHandler     The handler to put results in.
//
//******************************************************************************
class CAsyncReq_DeleteClassAsync : public CNamespaceReq
{
    WString m_wsClass;
    LONG m_lFlags;

public:
    CAsyncReq_DeleteClassAsync(
        ADDREF CWbemNamespace *pNamespace,
        READONLY LPWSTR wszClass,
        LONG lFlags,
        ADDREF IWbemObjectSink *pHandler,
        IWbemContext* pContext
        ) : CNamespaceReq(pNamespace, pHandler, pContext),
            m_wsClass(wszClass), m_lFlags(lFlags)
    {}

    HRESULT Execute();
    void DumpError();
    LPCWSTR GetReqInfo(){ return (WCHAR *)m_wsClass; };
};

//******************************************************************************
//******************************************************************************
//
//  class CAsyncReq_DeleteInstanceAsync
//
//  Encapsulates a request to execute DeleteInstanceAsync against a particular
//  namespace. Does it by calling Exec_DeleteInstance and converting the
//  results to the asynchrnous format.
//
//******************************************************************************
//
//  Constructor.
//
//  PARAMETERS:
//
//      IN CWbemNamespace* pNamespace    The namespace to execute against.
//      IN LPWSTR wszObjectPath         The path to the instance to delete.
//      IN LONG lFlags                  Flags
//      IN IWbemObjectSink* pHandler     The handler to put results in.
//
//******************************************************************************
class CAsyncReq_DeleteInstanceAsync : public CNamespaceReq
{
    WString m_wsPath;
    LONG m_lFlags;

public:
    CAsyncReq_DeleteInstanceAsync(
        ADDREF CWbemNamespace *pNamespace,
        READONLY LPWSTR wszPath,
        LONG lFlags,
        ADDREF IWbemObjectSink *pHandler,
        IWbemContext* pContext
        ) : CNamespaceReq(pNamespace, pHandler, pContext), m_wsPath(wszPath),
            m_lFlags(lFlags)
    {}

    HRESULT Execute();
    void DumpError();
    LPCWSTR GetReqInfo(){ return (WCHAR *)m_wsPath; };
};

//******************************************************************************
//******************************************************************************
//
//  class CAsyncReq_PutClassAsync
//
//  Encapsulates a request to execute PutClassAsync against a particular
//  namespace. Does it by calling Exec_PutClass and converting the
//  results to the asynchrnous format.
//
//******************************************************************************
//
//  Constructor.
//
//  PARAMETERS:
//
//      IN CWbemNamespace* pNamespace    The namespace to execute against.
//      IN IWbemClassObject* pClass      The class to put.
//      IN LONG lFlags                  Flags
//      IN IWbemObjectSink* pHandler     The handler to put results in.
//
//******************************************************************************
class CAsyncReq_PutClassAsync : public CNamespaceReq
{
    IWbemClassObject* m_pClass;
    LONG m_lFlags;

public:
    CAsyncReq_PutClassAsync(
        ADDREF CWbemNamespace *pNamespace,
        ADDREF IWbemClassObject* pClass,
        LONG lFlags,
        ADDREF IWbemObjectSink *pHandler,
        ADDREF IWbemContext* pContext
        ) : CNamespaceReq(pNamespace, pHandler, pContext), m_pClass(pClass),
            m_lFlags(lFlags)
    {
        m_pClass->AddRef();
    }

    ~CAsyncReq_PutClassAsync()
    {
        m_pClass->Release();
    }
    HRESULT Execute();
    void DumpError();
    LPCWSTR GetReqInfo()
    {
        _variant_t varClass;
        if (FAILED(m_pClass->Get(L"__CLASS",0,&varClass,0,0))) return L"";
        if (VT_BSTR == V_VT(&varClass)) 
        {
            StringCchCopyW(CNamespaceReq::s_DumpBuffer,LENGTH_OF(CNamespaceReq::s_DumpBuffer)-1,V_BSTR(&varClass));
            return CNamespaceReq::s_DumpBuffer;
        }
    	else return L""; 
    };
};

//******************************************************************************
//******************************************************************************
//
//  class CAsyncReq_PutInstanceAsync
//
//  Encapsulates a request to execute PutInstanceAsync against a particular
//  namespace. Does it by calling Exec_PutInstance and converting the
//  results to the asynchrnous format.
//
//******************************************************************************
//
//  Constructor.
//
//  PARAMETERS:
//
//      IN CWbemNamespace* pNamespace    The namespace to execute against.
//      IN IWbemClassObject* pInstance   The instance to put.
//      IN LONG lFlags                  Flags
//      IN IWbemObjectSink* pHandler     The handler to put results in.
//
//******************************************************************************
class CAsyncReq_PutInstanceAsync : public CNamespaceReq
{
    IWbemClassObject* m_pInstance;
    LONG m_lFlags;

public:
    CAsyncReq_PutInstanceAsync(
        ADDREF CWbemNamespace *pNamespace,
        ADDREF IWbemClassObject* pInstance,
        LONG lFlags,
        ADDREF IWbemObjectSink *pHandler,
        ADDREF IWbemContext* pContext
        ) : CNamespaceReq(pNamespace, pHandler, pContext),
            m_pInstance(pInstance), m_lFlags(lFlags)
    {
        m_pInstance->AddRef();
    }

    ~CAsyncReq_PutInstanceAsync()
    {
        m_pInstance->Release();
    }
    HRESULT Execute();
    void DumpError();
    LPCWSTR GetReqInfo()
    {
        _variant_t varRelPath;
        if (FAILED(m_pInstance->Get(L"__RELPATH",0,&varRelPath,0,0))) return L"";
        if (VT_BSTR == V_VT(&varRelPath)) 
        {
            StringCchCopyW(CNamespaceReq::s_DumpBuffer,LENGTH_OF(CNamespaceReq::s_DumpBuffer)-1,V_BSTR(&varRelPath));
            return CNamespaceReq::s_DumpBuffer;
        }
    	else return L""; 
    };
};

//******************************************************************************
//******************************************************************************
//
//  class CAsyncReq_CreateClassEnumAsync
//
//  Encapsulates a request to execute CreateClassEnumAsync against a particular
//  namespace. Does it by calling Exec_CreateClassEnum and converting the
//  results to the asynchrnous format.
//
//******************************************************************************
//
//  Constructor.
//
//  PARAMETERS:
//
//      IN CWbemNamespace* pNamespace    The namespace to execute against.
//      IN BSTR Parent                  The name of the parent class. If NULL,
//                                      start at the top level.
//      IN LONG lFlags                  Flags
//      IN IWbemObjectSink* pHandler     The handler to put results in.
//
//******************************************************************************
class CAsyncReq_CreateClassEnumAsync : public CNamespaceReq
{
    WString m_wsParent;
    LONG m_lFlags;

public:
    CAsyncReq_CreateClassEnumAsync(CWbemNamespace* pNamespace,
        BSTR Parent, LONG lFlags, ADDREF IWbemObjectSink* pHandler,
        ADDREF IWbemContext* pContext
        ) : CNamespaceReq(pNamespace, pHandler, pContext), m_wsParent(Parent),
            m_lFlags(lFlags)
    {}
    HRESULT Execute();
    virtual BOOL IsLongRunning() {return TRUE;}
    void DumpError();
    LPCWSTR GetReqInfo(){ return (WCHAR *)m_wsParent; };
};

//******************************************************************************
//******************************************************************************
//
//  class CAsyncReq_CreateInstanceEnumAsync
//
//  Encapsulates a request to execute CreateInstanceEnumAsync against a
//  particular
//  namespace. Does it by calling Exec_CreateInstanceEnum and converting the
//  results to the asynchrnous format.
//
//******************************************************************************
//
//  Constructor.
//
//  PARAMETERS:
//
//      IN CWbemNamespace* pNamespace    The namespace to execute against.
//      IN BSTR Class                   The name of the class.
//      IN LONG lFlags                  Flags
//      IN IWbemObjectSink* pHandler     The handler to put results in.
//
//******************************************************************************

class CAsyncReq_CreateInstanceEnumAsync : public CNamespaceReq
{
    WString m_wsClass;
    LONG m_lFlags;
public:
    CAsyncReq_CreateInstanceEnumAsync(
        CWbemNamespace* pNamespace, BSTR Class, LONG lFlags,
        ADDREF IWbemObjectSink *pHandler,
        ADDREF IWbemContext* pContext)
        : CNamespaceReq(pNamespace, pHandler, pContext), m_wsClass(Class),
            m_lFlags(lFlags)
    {}
    HRESULT Execute();
    virtual BOOL IsLongRunning() {return TRUE;}
    void DumpError();
    LPCWSTR GetReqInfo(){ return (WCHAR *)m_wsClass; };    
};

//******************************************************************************
//******************************************************************************
//
//  class CAsyncReq_GetObjectByPathAsync
//
//  Encapsulates a request to execute GetObjectAsync against a
//  particular
//  namespace. Does it by calling Exec_GetObjectByPath and converting the
//  results to the asynchrnous format.
//
//******************************************************************************
//
//  Constructor.
//
//  PARAMETERS:
//
//      IN CWbemNamespace* pNamespace    The namespace to execute against.
//      IN BSTR ObjectPath              The path to the object to get.
//      IN LONG lFlags                  Flags
//      IN IWbemObjectSink* pHandler     The handler to put results in.
//
//******************************************************************************
class CAsyncReq_GetObjectAsync : public CNamespaceReq
{
    WString m_wsObjectPath;
    long m_lFlags;

public:
    CAsyncReq_GetObjectAsync(
        CWbemNamespace* pNamespace, BSTR ObjectPath,  long lFlags,
        ADDREF IWbemObjectSink *pHandler, ADDREF IWbemContext* pContext) :
            CNamespaceReq(pNamespace, pHandler, pContext),
            m_wsObjectPath(ObjectPath), m_lFlags(lFlags)
    {}

    HRESULT Execute();
    void DumpError();
    LPCWSTR GetReqInfo(){ return (WCHAR *)m_wsObjectPath; }; 
};


//******************************************************************************
//******************************************************************************
//
//  class CAsyncReq_ExecMethodAsync
//
//  Encapsulates a request to execute ExecMethodAsync against a
//  particular
//  namespace. Does it by calling Exec_ExecMethodAsync and converting the
//  results to the asynchrnous format.
//
//******************************************************************************
//
//  Constructor.
//
//  PARAMETERS:
//
//      IN CWbemNamespace* pNamespace    The namespace to execute against.
//      IN BSTR ObjectPath              The path to the object to get.
//      IN BSTR MethodName              The name of the method
//      IN LONG lFlags                  Flags
//      IN IWbemClassObject* pInParams   The in-parameter of the method
//      IN IWbemObjectSink* pHandler     The handler to put results in.
//
//******************************************************************************
class CAsyncReq_ExecMethodAsync : public CNamespaceReq
{
    WString m_wsObjectPath;
    WString m_wsMethodName;
    IWbemClassObject* m_pInParams;
    long m_lFlags;

public:
    CAsyncReq_ExecMethodAsync(
        CWbemNamespace* pNamespace,
        BSTR ObjectPath,
        BSTR MethodName,
        long lFlags,
        IWbemClassObject* pInParams,
        ADDREF IWbemObjectSink *pHandler,
        ADDREF IWbemContext* pContext)
         : CNamespaceReq(pNamespace, pHandler, pContext),
            m_wsObjectPath(ObjectPath), m_wsMethodName(MethodName),
            m_pInParams(pInParams), m_lFlags(lFlags)
    {
        if(m_pInParams)
            m_pInParams->AddRef();
    }

    ~CAsyncReq_ExecMethodAsync()
    {
        if(m_pInParams)
            m_pInParams->Release();
    }
    HRESULT Execute();
    void DumpError();
    LPCWSTR GetReqInfo(){ return (WCHAR *)m_wsMethodName; }; 
};

//******************************************************************************
//******************************************************************************
//
//  class CAsyncReq_ExecQueryAsync
//
//  Encapsulates a request to execute ExecQueryAsync against a
//  particular
//  namespace. Does it by calling CQueryEngine::ExecQuery and converting the
//  results to the asynchrnous format.
//
//******************************************************************************
//
//  Constructor.
//
//  PARAMETERS:
//
//      IN CWbemNamespace* pNamespace    The namespace to execute against.
//      IN BSTR QueryFormat             The query language
//      IN BSTR Query                   The query string.
//      IN LONG lFlags                  Flags
//      IN IWbemObjectSink* pHandler     The handler to put results in.
//
//******************************************************************************
class CAsyncReq_ExecQueryAsync : public CNamespaceReq
{
    WString m_wsQueryFormat;
    WString m_wsQuery;
    long m_lFlags;

public:
    CAsyncReq_ExecQueryAsync(CWbemNamespace* pNamespace,
        BSTR QueryFormat, BSTR Query, long lFlags,
        IWbemObjectSink *pHandler, IWbemContext* pContext) :
            CNamespaceReq(pNamespace, pHandler, pContext),
            m_wsQueryFormat(QueryFormat), m_wsQuery(Query), m_lFlags(lFlags)
    {}
    HRESULT Execute();
    virtual BOOL IsLongRunning() {return TRUE;}
    void DumpError();
    LPCWSTR GetReqInfo(){ return (WCHAR *)m_wsQuery; };     
};


//******************************************************************************
//
//******************************************************************************
//
class CCallResult;
class CAsyncReq_OpenNamespace : public CAsyncReq
{
    CWbemNamespace* m_pParentNs;
    WString m_wsNamespace;
    long m_lSecurityFlags;
    DWORD m_dwPermission;
    CCallResult* m_pResult;
    bool m_bForClient;

public:
    CAsyncReq_OpenNamespace(CWbemNamespace* pParentNs, LPWSTR wszNamespace,
        long lSecurityFlags, DWORD dwPermission,
        IWbemContext* pContext, CCallResult* pResult, bool bForClient);
    ~CAsyncReq_OpenNamespace();
    HRESULT Execute();
    void DumpError();
    LPCWSTR GetReqInfo(){ return (WCHAR *)m_wsNamespace; };     
};

//******************************************************************************
//******************************************************************************
//
//  class CAsyncReq_ExecNotificationQueryAsync
//
//  Encapsulates a request to execute ExecNotificationQueryAsync against a
//  particular
//  namespace. Does it by calling ESS RegisterNotificationSink.
//
//******************************************************************************
//
//  Constructor.
//
//  PARAMETERS:
//
//      IN CWbemNamespace* pNamespace    The namespace to execute against.
//      IN BSTR QueryFormat             The query language
//      IN BSTR Query                   The query string.
//      IN LONG lFlags                  Flags
//      IN IWbemObjectSink* pHandler     The handler to put results in.
//
//******************************************************************************
class CAsyncReq_ExecNotificationQueryAsync : public CNamespaceReq
{
    WString m_wsQueryFormat;
    WString m_wsQuery;
    long m_lFlags;
    HRESULT *m_phRes;
    IWbemEventSubsystem_m4* m_pEss;
    HANDLE m_hEssDoneEvent;

public:
    CAsyncReq_ExecNotificationQueryAsync(CWbemNamespace* pNamespace,
        IWbemEventSubsystem_m4* pEss,
        BSTR QueryFormat, BSTR Query, long lFlags,
        IWbemObjectSink *pHandler, IWbemContext* pContext, HRESULT* phRes,
        HANDLE hEssApprovalEvent
        );
    ~CAsyncReq_ExecNotificationQueryAsync();
    HRESULT Execute();
    virtual BOOL IsLongRunning() {return TRUE;}
    void DumpError();
    LPCWSTR GetReqInfo(){ return (WCHAR *)m_wsQuery; };         
};

//******************************************************************************
//******************************************************************************
//
//  class CAsyncReq_CancelAsyncCall
//
//
//******************************************************************************
//
//  Constructor.
//
//  PARAMETERS:
//
//
//******************************************************************************

class CAsyncReq_CancelAsyncCall : public CAsyncReq
{
protected:
    HRESULT* m_phres;
    IWbemObjectSink* m_pSink;

public:
    CAsyncReq_CancelAsyncCall(IWbemObjectSink* pSink, HRESULT* phres);
    ~CAsyncReq_CancelAsyncCall();
    HRESULT Execute();
    void DumpError(){    DEBUGTRACE((LOG_WBEMCORE,
        "CAsyncReq_CancelAsyncCall call failed\n"));};
    LPCWSTR GetReqInfo()
    { 
        StringCchPrintfW(CNamespaceReq::s_DumpBuffer,LENGTH_OF(CNamespaceReq::s_DumpBuffer)-1,L"CancelAsyncCall for sink %p",m_pSink);
        return CNamespaceReq::s_DumpBuffer;    
    };
};

//******************************************************************************
//******************************************************************************
//
//  class CAsyncReq_CancelProvAsyncCall
//
//
//******************************************************************************
//
//  Constructor.
//
//  PARAMETERS:
//
//
//******************************************************************************

class CAsyncReq_CancelProvAsyncCall : public CAsyncReq
{
protected:
	IWbemServices* m_pProv;
    IWbemObjectSink* m_pSink;
	IWbemObjectSink* m_pStatusSink;

public:
    CAsyncReq_CancelProvAsyncCall( IWbemServices* pProv, IWbemObjectSink* pSink,
									IWbemObjectSink* pStatusSink );
    ~CAsyncReq_CancelProvAsyncCall();
    HRESULT Execute();
    void DumpError(){    DEBUGTRACE((LOG_WBEMCORE,
        "CAsyncReq_CancelProvAsyncCall call failed\n"));};
    LPCWSTR GetReqInfo()
    { 
        StringCchPrintfW(CNamespaceReq::s_DumpBuffer,LENGTH_OF(CNamespaceReq::s_DumpBuffer)-1,L"CancelProvAsyncCall for sink %p",m_pProv);
        return CNamespaceReq::s_DumpBuffer;    
    };
};

//******************************************************************************
//******************************************************************************
//
//  class CAsyncReq_DynAux_GetInstances
//
//
//******************************************************************************
//
//  Constructor.
//
//  PARAMETERS:
//
//
//    READONLY CWbemObject *pClassDef,
//    long lFlags,
//    IWbemContext* pCtx,
//    CBasicObjectSink* pSink
//
//******************************************************************************

class CAsyncReq_DynAux_GetInstances : public CNamespaceReq
{
private:

	CWbemObject *m_pClassDef ;
	IWbemContext *m_pCtx ;
    long m_lFlags ;
    CBasicObjectSink *m_pSink ;

public:

    CAsyncReq_DynAux_GetInstances (
		CWbemNamespace *pNamespace ,
		CWbemObject *pClassDef ,
		long lFlags ,
		IWbemContext *pCtx ,
		CBasicObjectSink *pSink);

   ~CAsyncReq_DynAux_GetInstances();

    HRESULT Execute ();
    virtual BOOL IsLongRunning() {return TRUE;}
    void DumpError();
    LPCWSTR GetReqInfo()
    { 
        _variant_t varClass;
        if (FAILED(m_pClassDef->Get(L"__CLASS",0,&varClass,0,0))) return L"";
        if (VT_BSTR == V_VT(&varClass))
        {
	        StringCchCopyW(CNamespaceReq::s_DumpBuffer,LENGTH_OF(CNamespaceReq::s_DumpBuffer)-1,V_BSTR(&varClass));
    	    return CNamespaceReq::s_DumpBuffer;    
        }
        else return L"";
    };    
};

//******************************************************************************
//******************************************************************************
//
//  class CAsyncReq_DynAux_ExecQueryAsync
//
//
//******************************************************************************
//
//  Constructor.
//
//  PARAMETERS:
//
//
//		CWbemNamespace *pNamespace ,
//		CWbemObject *pClassDef ,
//		LPWSTR Query,
//		LPWSTR QueryFormat,
//		long lFlags ,
//		IWbemContext *pCtx ,
//		CBasicObjectSink *pSink
//
//******************************************************************************

class CAsyncReq_DynAux_ExecQueryAsync : public CNamespaceReq
{
private:
	CWbemObject *m_pClassDef ;
	LPWSTR m_Query ;
	LPWSTR m_QueryFormat ;
	IWbemContext *m_pCtx ;
	long m_lFlags ;
	CBasicObjectSink *m_pSink ;
	HRESULT m_Result ;
public:

    CAsyncReq_DynAux_ExecQueryAsync (CWbemNamespace *pNamespace ,
									CWbemObject *pClassDef ,
									LPWSTR Query,
									LPWSTR QueryFormat,
									long lFlags ,
									IWbemContext *pCtx ,
									CBasicObjectSink *pSink);
    
    ~CAsyncReq_DynAux_ExecQueryAsync();

	HRESULT Initialize () 
	{
		return m_Result ;
	}

    HRESULT Execute ();
    virtual BOOL IsLongRunning() {return TRUE;}
    void DumpError();
    LPCWSTR GetReqInfo()
    { 
        return (WCHAR * )m_Query;
    };    
};

class CAsyncReq_RemoveNotifySink : public CAsyncReq
{
private:
    IWbemObjectSink * m_pSink;
	IWbemObjectSink* m_pStatusSink;
public:
    CAsyncReq_RemoveNotifySink(IWbemObjectSink* pSink, IWbemObjectSink* pStatusSink);
    ~CAsyncReq_RemoveNotifySink();
    HRESULT Execute();
    void DumpError(){};
    LPCWSTR GetReqInfo()
    { 
        StringCchPrintfW(CNamespaceReq::s_DumpBuffer,LENGTH_OF(CNamespaceReq::s_DumpBuffer)-1,L"RemoveNotifySink for sink %p",m_pSink);
   	    return CNamespaceReq::s_DumpBuffer;    
    }; 

    void SetStatusSink(IWbemObjectSink * pStatusSink)
    {
        if (m_pStatusSink) m_pStatusSink->Release();
        m_pStatusSink = pStatusSink;
        if (m_pStatusSink) m_pStatusSink->AddRef();            
    }
    void SetSink(IWbemObjectSink * pSink)
    {
        if (m_pSink) m_pSink->Release();
        m_pSink = pSink;
        if (m_pSink) m_pSink->AddRef();            
    }    
};

#endif