windows-server-2003/inetcore/urlmon/astg/stgwrap.cxx

//+---------------------------------------------------------------------------
//
//  Microsoft Windows
//  Copyright (C) Microsoft Corporation, 1992 - 1995.
//
//  File:	stgwrap.cxx
//
//  Contents:	IStorage/IStream wrappers for async docfile
//
//  Classes:	
//
//  Functions:	
//
//  History:	19-Dec-95	SusiA	Created
//
//----------------------------------------------------------------------------

#include "astghead.cxx"
#pragma hdrstop

#include "stgwrap.hxx"
#include "asyncerr.hxx"
#define UNTERMINATED 0
#define TERMINATED_NORMAL 1
#define TERMINATED_ABNORMAL 2

//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStorage::Notify,  public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	14-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------
SCODE CAsyncStorage::Notify(void)
{
    SCODE sc = S_OK;
	ULONG ulWaterMark;
    ULONG ulFailurePoint;

	HANDLE hNotifyEvent;
	CSinkList *pslTemp;
	
	_pflb->GetFailureInfo(&ulWaterMark,
                          &ulFailurePoint);
	
	pslTemp =_cpoint.GetHead();
	
	while ((pslTemp == NULL) || 
		   (sc = pslTemp->GetProgressNotify()->OnProgress(ulWaterMark, ulFailurePoint,  FALSE)) ==S_OK)
	{	
		DWORD dwFlags;

		// wait for an event to signal
		hNotifyEvent = _pflb->GetNotificationEvent();
		WaitForSingleObject(hNotifyEvent, INFINITE);
			
		_pflb->GetTerminationStatus(&dwFlags);
		// client terminated call?
		if (dwFlags ==	TERMINATED_ABNORMAL)
				return STG_E_TERMINATED;

		// download is complete
		else if (dwFlags ==	TERMINATED_NORMAL)
				break;

		else
		{	_pflb->GetFailureInfo(&ulWaterMark,
					              &ulFailurePoint);

			// all the data is available now
			if (ulWaterMark >= ulFailurePoint)
				break;
		}
				
	}
	if (sc == S_FALSE)
		return S_OK;
	else return sc;


}


//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStream::Notify,  public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	14-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------
SCODE CAsyncStream::Notify(void)
{
    SCODE sc = S_OK;
	ULONG ulWaterMark;
    ULONG ulFailurePoint;
	CSinkList *pslTemp;
	HANDLE hNotifyEvent;

	_pflb->GetFailureInfo(&ulWaterMark,
                          &ulFailurePoint);
    
	pslTemp =_cpoint.GetHead();
	
	while ((pslTemp == NULL) || 
		   (sc = pslTemp->GetProgressNotify()->OnProgress(ulWaterMark, ulFailurePoint,  FALSE)) ==S_OK)
	{	
		DWORD dwFlags;

		// wait for an event to signal
		hNotifyEvent = _pflb->GetNotificationEvent();
		WaitForSingleObject(hNotifyEvent, INFINITE);
			
		_pflb->GetTerminationStatus(&dwFlags);
		// client terminated call?
		if (dwFlags ==	TERMINATED_ABNORMAL)
				return STG_E_TERMINATED;

		// download is complete
		else if (dwFlags ==	TERMINATED_NORMAL)
				break;

		else
		{	_pflb->GetFailureInfo(&ulWaterMark,
					              &ulFailurePoint);

			// all the data is available now
			if (ulWaterMark >= ulFailurePoint)
				break;
		}
				
	}
	if (sc == S_FALSE)
		return S_OK;
	else return sc;


}
//+---------------------------------------------------------------------------
//
//  Member:	CAsyncEnum::Notify,  public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	14-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------
SCODE CAsyncEnum::Notify(void)
{
    SCODE sc = S_OK;
	ULONG ulWaterMark;
    ULONG ulFailurePoint;
	CSinkList *pslTemp;
	HANDLE hNotifyEvent;

	_pflb->GetFailureInfo(&ulWaterMark,
                          &ulFailurePoint);
	
	pslTemp =_cpoint.GetHead();
	
	while ((pslTemp == NULL) || 
		   (sc = pslTemp->GetProgressNotify()->OnProgress(ulWaterMark, ulFailurePoint,  FALSE)) ==S_OK)
	{	
		DWORD dwFlags;

		// wait for an event to signal
		hNotifyEvent = _pflb->GetNotificationEvent();
		WaitForSingleObject(hNotifyEvent, INFINITE);
			
		_pflb->GetTerminationStatus(&dwFlags);
		// client terminated call?
		if (dwFlags ==	TERMINATED_ABNORMAL)
				return STG_E_TERMINATED;

		// download is complete
		else if (dwFlags ==	TERMINATED_NORMAL)
				break;

		else
		{	_pflb->GetFailureInfo(&ulWaterMark,
					              &ulFailurePoint);

			// all the data is available now
			if (ulWaterMark >= ulFailurePoint)
				break;
		}
				
	}
	if (sc == S_FALSE)
		return S_OK;
	else return sc;


}
//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStorage::QueryInterface, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------

STDMETHODIMP CAsyncStorage::QueryInterface(REFIID iid, void **ppvObj)
{
    SCODE sc = S_OK;
    *ppvObj = NULL;

    astgDebugOut((DEB_ITRACE, "In  CAsyncStorage::QueryInterface:%p()\n", this));    
 
    if (IsEqualIID(iid, IID_IUnknown)) 
     
    {
        *ppvObj = (IStorage *)this;
    }
    else if (IsEqualIID(iid, IID_IStorage))
    {
        *ppvObj = (IStorage *)this;
    }
    else if (IsEqualIID(iid, IID_IConnectionPointContainer))
    {
        *ppvObj = (IConnectionPointContainer *)this;
    }
    else
    {
        sc = E_NOINTERFACE;
    }

    if (SUCCEEDED(sc))
    {
        AddRef();
    }
    astgDebugOut((DEB_ITRACE, "Out  CAsyncStorage::QueryInterface:%p()\n", this));    
    return sc;

}
//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStorage::AddRef, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------
STDMETHODIMP_(ULONG) CAsyncStorage::AddRef(void)
{	
    ULONG ulRet;
    astgDebugOut((DEB_ITRACE, "In  CAsyncStorage::AddRef:%p()\n", this));
    InterlockedIncrement(&_cReferences);
    ulRet = _cReferences;
    _pRealStg->AddRef();
    astgDebugOut((DEB_ITRACE, "Out CAsyncStorage::AddRef\n"));
    return ulRet;
	
}
//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStorage::Release, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------

STDMETHODIMP_(ULONG) CAsyncStorage::Release(void)
{
    LONG lRet;
    astgDebugOut((DEB_ITRACE, "In  CAsyncStorage::Release:%p()\n", this));

    lRet = InterlockedDecrement(&_cReferences);
    _pRealStg->Release();
    if (lRet == 0)
    {
        delete this;
    }
    else if (lRet < 0)
        lRet = 0;
    astgDebugOut((DEB_ITRACE, "Out CAsyncStorage::Release\n"));
    return (ULONG)lRet;

}
//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStorage::CreateStream, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------

STDMETHODIMP CAsyncStorage::CreateStream(OLECHAR const *pwcsName,
                                         DWORD grfMode,
                                         DWORD reserved1,
                                         DWORD reserved2,
                                         IStream **ppstm)
{
   
    SCODE sc = S_OK,
		  sc2 = S_OK;
   
    CAsyncStream *pwstm;

    astgDebugOut((DEB_ITRACE, "In  CAsyncStorage::CreateStream:%p()\n", this));
    
	do
	{	
		sc = _pRealStg->CreateStream(pwcsName,
                                 grfMode,
                                 reserved1,
                                 reserved2,
                                 ppstm);

		if (( STG_E_PENDING==sc) && ((sc2 = Notify())!= S_OK))
			return ResultFromScode(sc2); 

		
	} while (sc == STG_E_PENDING );
	
    if (SUCCEEDED(sc))
    {
        CAsyncStream *pwstm = new CAsyncStream(*ppstm, _pflb);
        *ppstm = (IStream *)pwstm;
	
    }
    astgDebugOut((DEB_ITRACE, "Out  CAsyncStorage::CreateStream:%p()\n", this));
    return ResultFromScode(sc);   		

}

//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStorage::OpenStream, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------

STDMETHODIMP CAsyncStorage::OpenStream(OLECHAR const *pwcsName,
                                       void *reserved1,
                                       DWORD grfMode,
                                       DWORD reserved2,
                                       IStream **ppstm)
{
    CAsyncStream *pwstm;
    SCODE sc = S_OK;
	SCODE sc2 = S_OK;
   

    astgDebugOut((DEB_ITRACE, "In  CAsyncStorage::OpenStream:%p()\n", this));
    
    do
	{	
		sc = _pRealStg->OpenStream(pwcsName,
                               reserved1,
                               grfMode,
                               reserved2,
                               ppstm);

		if (( STG_E_PENDING==sc) && ((sc2 = Notify())!= S_OK))
			return ResultFromScode(sc2); 

		
	} while (sc == STG_E_PENDING );

	if (SUCCEEDED(sc))
    {
        CAsyncStream *pwstm = new CAsyncStream(*ppstm, _pflb);
        *ppstm = (IStream *)pwstm;
    }

    astgDebugOut((DEB_ITRACE, "Out  CAsyncStorage::OpenStream:%p()\n", this));
    return ResultFromScode(sc);   		

}
//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStorage::CreateStorage, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------

STDMETHODIMP CAsyncStorage::CreateStorage(OLECHAR const *pwcsName,
                                          DWORD grfMode,
                                          DWORD reserved1,
                                          LPSTGSECURITY reserved2,
                                          IStorage **ppstg)
{
  
    SCODE sc = S_OK;
	SCODE sc2 = S_OK;	
   
    
   
    astgDebugOut((DEB_ITRACE, "In  CAsyncStorage::CreateStorage:%p()\n", this));
  
	do
	{	sc = _pRealStg->CreateStorage( pwcsName,
                                   grfMode,
                                   reserved1,
                                   reserved2,
                                   ppstg);
		
		if (( STG_E_PENDING==sc) && ((sc2 = Notify())!= S_OK))
			return ResultFromScode(sc2); 

	
	}   while (sc == STG_E_PENDING );

	if (SUCCEEDED(sc))
    {
        CAsyncStorage *pwstg = new CAsyncStorage(*ppstg, _pflb);
        *ppstg = (IStorage *) pwstg;
	
    }


    astgDebugOut((DEB_ITRACE, "Out  CAsyncStorage::CreateStorage:%p()\n", this));
    return ResultFromScode(sc);   		
 

}

//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStorage::OpenStorage, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------

STDMETHODIMP CAsyncStorage::OpenStorage(OLECHAR const *pwcsName,
                                        IStorage *pstgPriority,
                                        DWORD grfMode,
                                        SNB snbExclude,
                                        DWORD reserved,
                                        IStorage **ppstg)
{
   
    SCODE sc = S_OK;
	SCODE sc2 = S_OK;
	

    astgDebugOut((DEB_ITRACE, "In  CAsyncStorage::OpenStorage:%p()\n", this));
    
	
	do
	{	sc = _pRealStg->OpenStorage( pwcsName,
                                 pstgPriority,
                                 grfMode,
                                 snbExclude,
                                 reserved,
                                 ppstg);
		
		if (( STG_E_PENDING==sc) && ((sc2 = Notify())!= S_OK))
			return ResultFromScode(sc2); 

	
	}   while (sc == STG_E_PENDING );

	if (SUCCEEDED(sc))
    {
        CAsyncStorage *pwstg = new CAsyncStorage(*ppstg, _pflb);
        *ppstg = (IStorage *) pwstg;
    }

    astgDebugOut((DEB_ITRACE, "Out  CAsyncStorage::OpenStorage:%p()\n", this));
    return ResultFromScode(sc);   		
  
}
//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStorage::CopyTo, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------
STDMETHODIMP CAsyncStorage::CopyTo(DWORD ciidExclude,
                                   IID const *rgiidExclude,
                                   SNB snbExclude,
                                   IStorage *pstgDest)
{
   
	SCODE sc = S_OK;
	SCODE sc2 = S_OK;
    
   
 
    astgDebugOut((DEB_ITRACE, "In  CAsyncStorage::CopyTo%p()\n", this));
   

    do
	{	
		sc = _pRealStg->CopyTo( ciidExclude,
                              rgiidExclude,
                              snbExclude,
                              pstgDest);

		if (( STG_E_PENDING==sc) && ((sc2 = Notify())!= S_OK))
			return ResultFromScode(sc2); 

	
	} while (sc == STG_E_PENDING );

    astgDebugOut((DEB_ITRACE, "Out CAsyncStorage::CopyTo\n"));	
	return ResultFromScode(sc); 	
}
//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStorage::MoveElementTo, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------
STDMETHODIMP CAsyncStorage::MoveElementTo(OLECHAR const *lpszName,
                                          IStorage *pstgDest,
                                          OLECHAR const *lpszNewName,
                                          DWORD grfFlags)
{
    
	SCODE sc = S_OK;
	SCODE sc2 = S_OK;
	
    astgDebugOut((DEB_ITRACE, "In  CAsyncStorage::MoveElementTo%p()\n", this));
   

	do
	{

		sc = _pRealStg->MoveElementTo(lpszName,
                                    pstgDest,
                                    lpszNewName,
                                    grfFlags) ;

		if (( STG_E_PENDING==sc) && ((sc2 = Notify())!= S_OK))
			return ResultFromScode(sc2); 
	}
	while (sc == STG_E_PENDING );
    
	astgDebugOut((DEB_ITRACE, "Out CAsyncStorage::MoveElementTo\n"));	
    return ResultFromScode(sc); 		
	
}
//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStorage::Commit, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------
STDMETHODIMP CAsyncStorage::Commit(DWORD grfCommitFlags)
{
    
	SCODE sc = S_OK;
	SCODE sc2 = S_OK;

    astgDebugOut((DEB_ITRACE, "In  CAsyncStorage::Commit%p()\n", this));
   

	do
	{				
		sc = _pRealStg->Commit(grfCommitFlags);

		if (( STG_E_PENDING==sc) && ((sc2 = Notify())!= S_OK))
			return ResultFromScode(sc2); 
		
	}  while (sc == STG_E_PENDING );
	
    astgDebugOut((DEB_ITRACE, "Out CAsyncStorage::Commit\n"));	
    return ResultFromScode(sc); 		
}
//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStorage::Revert, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------
STDMETHODIMP CAsyncStorage::Revert(void)
{
    
	SCODE sc = S_OK;
	SCODE sc2 = S_OK;

    astgDebugOut((DEB_ITRACE, "In  CAsyncStorage::Revert%p()\n", this));
   

    do
	{
		sc = _pRealStg->Revert();
		if (( STG_E_PENDING==sc) && ((sc2 = Notify())!= S_OK))
			return ResultFromScode(sc2); 

	}  while (sc == STG_E_PENDING );
	
    astgDebugOut((DEB_ITRACE, "Out CAsyncStorage::Revert\n"));	
    return ResultFromScode(sc); 	

}
//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStorage::EnumElements, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------
STDMETHODIMP CAsyncStorage::EnumElements(DWORD reserved1,
                                         void *reserved2,
                                         DWORD reserved3,
                                         IEnumSTATSTG **ppenm)
{
   
	SCODE sc = S_OK;
	SCODE sc2 = S_OK;
   
    astgDebugOut((DEB_ITRACE, "In  CAsyncStorage::EnumElements%p()\n", this));
   
	do
	{		
		sc = _pRealStg->EnumElements(reserved1,
                                   reserved2,
                                   reserved3,
                                   ppenm);
		if (( STG_E_PENDING==sc) && ((sc2 = Notify())!= S_OK))
			return ResultFromScode(sc2); 


	}   while (sc == STG_E_PENDING );

	if (SUCCEEDED(sc))
    {
        CAsyncEnum *pwenum = new CAsyncEnum(*ppenm, _pflb);
        *ppenm = (IEnumSTATSTG *)pwenum;
	
    }
    astgDebugOut((DEB_ITRACE, "Out CAsyncStorage::EnumElements\n"));	
    return ResultFromScode(sc); 	
}
//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStorage::DestroyElement, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------
STDMETHODIMP CAsyncStorage::DestroyElement(OLECHAR const *pwcsName)
{
   
	SCODE sc = S_OK;
	SCODE sc2 = S_OK;
	ULONG ulWaterMark;
    ULONG ulFailurePoint;

	HANDLE hNotifyEvent;
	CSinkList *pslTemp;
	
	
    astgDebugOut((DEB_ITRACE, "In  CAsyncStorage::DestroyElement%p()\n", this));
   
	pslTemp =_cpoint.GetHead();
	
	while (1)
	{	
		DWORD dwFlags;

		_pflb->GetTerminationStatus(&dwFlags);
		// client terminated call?
		if (dwFlags ==	TERMINATED_ABNORMAL)
				return STG_E_TERMINATED;

		// download is complete
		else if (dwFlags ==	TERMINATED_NORMAL)
				break;
		// wait for an event to signal
		hNotifyEvent = _pflb->GetNotificationEvent();
		WaitForSingleObject(hNotifyEvent, INFINITE);
	
		if (pslTemp != NULL)
		{
			_pflb->GetFailureInfo(&ulWaterMark,
                          &ulFailurePoint);
			pslTemp->GetProgressNotify()->OnProgress(ulWaterMark, (ULONG) -1 ,  FALSE);

		}

	} 
	
	sc = _pRealStg->DestroyElement(pwcsName);
	
    astgDebugOut((DEB_ITRACE, "Out CAsyncStorage::DestroyElement\n"));	
    return ResultFromScode(sc); 	
}
//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStorage::RenameElement, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------
STDMETHODIMP CAsyncStorage::RenameElement(OLECHAR const *pwcsOldName,
                                          OLECHAR const *pwcsNewName)
{
    
	SCODE sc = S_OK;
	SCODE sc2 = S_OK;

    astgDebugOut((DEB_ITRACE, "In  CAsyncStorage::RenameElement%p()\n", this));
   
	do
	{	

		sc = _pRealStg->RenameElement(pwcsOldName,
                                    pwcsNewName);
		if (( STG_E_PENDING==sc) && ((sc2 = Notify())!= S_OK))
			return ResultFromScode(sc2);

	}   while (sc == STG_E_PENDING );
	
    astgDebugOut((DEB_ITRACE, "Out CAsyncStorage::RenameElement\n"));	
    return ResultFromScode(sc); 	
}
//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStorage::SetElementTimes, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------
STDMETHODIMP CAsyncStorage::SetElementTimes(const OLECHAR *lpszName,
                                            FILETIME const *pctime,
                                            FILETIME const *patime,
                                            FILETIME const *pmtime)
{
    
	SCODE sc = S_OK;
	SCODE sc2 = S_OK;
 
    astgDebugOut((DEB_ITRACE, "In  CAsyncStorage::SetElementTimes%p()\n", this));
   

	do
	{	
		sc = _pRealStg->SetElementTimes(lpszName,
                                      pctime,
                                      patime,
                                      pmtime);
		
		if (( STG_E_PENDING==sc) && ((sc2 = Notify())!= S_OK))
			return ResultFromScode(sc2);

	}   while (sc == STG_E_PENDING );
   
    astgDebugOut((DEB_ITRACE, "Out CAsyncStorage::SetElementTimes\n"));	
    return ResultFromScode(sc); 	
}
//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStorage::SetClass, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------
STDMETHODIMP CAsyncStorage::SetClass(REFCLSID clsid)
{
    
	SCODE sc = S_OK;
	SCODE sc2 = S_OK;

    astgDebugOut((DEB_ITRACE, "In  CAsyncStorage::SetClass%p()\n", this));
   

    do
	{
		sc = _pRealStg->SetClass(clsid);
		if (( STG_E_PENDING==sc) && ((sc2 = Notify())!= S_OK))
			return ResultFromScode(sc2); 

	
	} while (sc == STG_E_PENDING );
	
    astgDebugOut((DEB_ITRACE, "Out CAsyncStorage::SetClass\n"));	
    return ResultFromScode(sc); 	
}
//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStorage::SetStateBits, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------
STDMETHODIMP CAsyncStorage::SetStateBits(DWORD grfStateBits, DWORD grfMask)
{
    
	SCODE sc = S_OK;
	SCODE sc2 = S_OK;

    astgDebugOut((DEB_ITRACE, "In  CAsyncStorage::SetStateBits%p()\n", this));
   

    do
	{	sc = _pRealStg->SetStateBits(grfStateBits, grfMask);
		
		if (( STG_E_PENDING==sc) && ((sc2 = Notify())!= S_OK))
			return ResultFromScode(sc2); 

		
	} while (sc == STG_E_PENDING );  
    astgDebugOut((DEB_ITRACE, "Out CAsyncStorage::SetStateBits\n"));	
    return ResultFromScode(sc); 	
}
//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStorage::Stat, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------
STDMETHODIMP CAsyncStorage::Stat(STATSTG *pstatstg, DWORD grfStatFlag)
{
    
	SCODE sc = S_OK;
	SCODE sc2 = S_OK;

    astgDebugOut((DEB_ITRACE, "In  CAsyncStorage::Stat%p()\n", this));
   

	do
	{	sc = _pRealStg->Stat( pstatstg,  grfStatFlag);
		if (( STG_E_PENDING==sc) && ((sc2 = Notify())!= S_OK))
			return ResultFromScode(sc2); 

	}   while (sc == STG_E_PENDING );

    astgDebugOut((DEB_ITRACE, "Out CAsyncStorage::Stat\n"));	
    return ResultFromScode(sc); 	
}

//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStorage::EnumConnectionPoints, public
//
//  Synopsis:	Return enumerator on connection points
//
//  Arguments:	[ppEnum] -- Return pointer of enumerator
//
//  Returns:	Appropriate status code
//
//  History:	28-Dec-95	SusiA	Created
//
//----------------------------------------------------------------------------

STDMETHODIMP CAsyncStorage::EnumConnectionPoints(
    IEnumConnectionPoints **ppEnum)
{
    astgDebugOut((DEB_ITRACE,
                  "In  CAsyncStorage::EnumConnectionPoints:%p()\n",
                  this));
    astgDebugOut((DEB_ITRACE,
                  "Out CAsyncStorage::EnumConnectionPoints\n"));
    return E_NOTIMPL;
}

//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStorage::FindConnectionPoint, public
//
//  Synopsis:	Return a connection point given an IID
//
//  Arguments:	[iid] -- IID to return connection point for
//              [ppCP] -- Return location for pointer
//
//  Returns:	Appropriate status code
//
//  History:	28-Dec-95	SusiA	Created
//
//----------------------------------------------------------------------------

STDMETHODIMP CAsyncStorage::FindConnectionPoint(
    REFIID iid,
    IConnectionPoint **ppCP)
{
    astgDebugOut((DEB_ITRACE,
                  "In  CAsyncStorage::FindConnectionPoint:%p()\n",
                  this));

    CConnectionPoint *pcp;
    
    if (IsEqualIID(iid, IID_IProgressNotify))
    {
        pcp = &_cpoint;
    }
    else
    {
        *ppCP = NULL;
        return E_NOINTERFACE;
    }

    pcp->AddRef();
    *ppCP = pcp;
    
    astgDebugOut((DEB_ITRACE,
                  "Out CAsyncStorage::FindConnectionPoint\n"));
    return S_OK;
}

//+---------------------------------------------------------------------------
//
//  Member:	CAsyncRootStorage::QueryInterface, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------

STDMETHODIMP CAsyncRootStorage::QueryInterface(REFIID iid, void **ppvObj)
{
	
    SCODE sc = S_OK;
    *ppvObj = NULL;

    astgDebugOut((DEB_ITRACE, "In  CAsyncRootStorage::QueryInterface:%p()\n", this));    
    if (IsEqualIID(iid, IID_IUnknown)) 
     
    {
        *ppvObj = (IStorage *)this;
    }
    else if (IsEqualIID(iid, IID_IStorage))
    {
        *ppvObj = (IStorage *)this;
    }
    else if (IsEqualIID(iid, IID_IRootStorage))
    {
        *ppvObj = (IRootStorage *)this;
    }
    else if (IsEqualIID(iid, IID_IConnectionPointContainer))
    {
        *ppvObj = (IConnectionPointContainer *)this;
    }
    else
    {
        sc = E_NOINTERFACE;
    }

    if (SUCCEEDED(sc))
    {
        AddRef();
    }
    astgDebugOut((DEB_ITRACE, "Out  CAsyncRootStorage::QueryInterface:%p()\n", this));    
    return sc;

}
//+---------------------------------------------------------------------------
//
//  Member:	CAsyncRootStorage::AddRef, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------
STDMETHODIMP_(ULONG) CAsyncRootStorage::AddRef(void)
{	
    ULONG ulRet;
    astgDebugOut((DEB_ITRACE, "In  CAsyncRootStorage::AddRef:%p()\n", this));
    InterlockedIncrement(&_cReferences);
    ulRet = _cReferences;
    _pRealStg->AddRef();
    astgDebugOut((DEB_ITRACE, "Out CAsyncRootStorage::AddRef\n"));
    return ulRet;
	
}
//+---------------------------------------------------------------------------
//
//  Member:	CAsyncRootStorage::Release, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------

STDMETHODIMP_(ULONG) CAsyncRootStorage::Release(void)
{
    LONG lRet;
    astgDebugOut((DEB_ITRACE, "In  CAsyncRootStorage::Release:%p()\n", this));

    lRet = InterlockedDecrement(&_cReferences);
    _pRealStg->Release();
    if (lRet == 0)
    {
        delete this;
    }
    else if (lRet < 0)
        lRet = 0;
    astgDebugOut((DEB_ITRACE, "Out CAsyncRootStorage::Release\n"));
    return (ULONG)lRet;

}
//+---------------------------------------------------------------------------
//
//  Member:	CAsyncRootStorage::SwitchToFile, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------

STDMETHODIMP CAsyncRootStorage::SwitchToFile(OLECHAR *ptcsFile)
{
    
	SCODE sc = S_OK;
	SCODE sc2 = S_OK;
	IRootStorage *prstg;

    astgDebugOut((DEB_ITRACE, "In  CAsyncStorage::%p()\n", this));
   

	if (!SUCCEEDED( _pRealStg->QueryInterface(IID_IRootStorage, (void **) &prstg)))
        return E_NOINTERFACE;
	
    do
	{
		sc = prstg->SwitchToFile(ptcsFile);
		if (( STG_E_PENDING==sc) && ((sc2 = Notify())!= S_OK))
			return ResultFromScode(sc2); 
	
	} while (sc == STG_E_PENDING );   

    astgDebugOut((DEB_ITRACE, "Out CAsyncStorage::\n"));	
    return ResultFromScode(sc); 	
}


//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStream::QueryInterface, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------


STDMETHODIMP CAsyncStream::QueryInterface(REFIID iid, void **ppvObj)
{
    SCODE sc = S_OK;
    *ppvObj = NULL;

    astgDebugOut((DEB_ITRACE, "In  CAsyncStream::QueryInterface:%p()\n", this));    
    if (IsEqualIID(iid, IID_IUnknown)) 
     
    {
        *ppvObj = (IStream *)this;
    }
    else if (IsEqualIID(iid, IID_IStream))
    {
        *ppvObj = (IStream *)this;
    }
    else if (IsEqualIID(iid, IID_IConnectionPointContainer))
    {
        *ppvObj = (IConnectionPointContainer *)this;
    }
    else
    {
        sc = E_NOINTERFACE;
    }

    if (SUCCEEDED(sc))
    {
        AddRef();
        _pRealStm->AddRef();
    }
    astgDebugOut((DEB_ITRACE, "Out  CAsyncStream::QueryInterface:%p()\n", this));    
    return sc;

}
//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStream::AddRef, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------
STDMETHODIMP_(ULONG) CAsyncStream::AddRef(void)
{	
    ULONG ulRet;
    astgDebugOut((DEB_ITRACE, "In  CAsyncStream::AddRef:%p()\n", this));
    InterlockedIncrement(&_cReferences);
    ulRet = _cReferences;
    _pRealStm->AddRef();
    astgDebugOut((DEB_ITRACE, "Out CAsyncStream::AddRef\n"));
    return ulRet;
	
}
//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStream::Release, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------
STDMETHODIMP_(ULONG) CAsyncStream::Release(void)
{
    LONG lRet;
    astgDebugOut((DEB_ITRACE, "In  CAsyncStream::Release:%p()\n", this));

    lRet = InterlockedDecrement(&_cReferences);
    _pRealStm->Release();
    if (lRet == 0)
    {
        delete this;
    }
    else if (lRet < 0)
        lRet = 0;
    astgDebugOut((DEB_ITRACE, "Out CAsyncStream::Release\n"));
    return (ULONG)lRet;

}
//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStream::Read, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------

STDMETHODIMP CAsyncStream::Read(VOID HUGEP *pv,
                                ULONG cb,
                                ULONG *pcbRead)
{
    SCODE sc = S_OK;
	SCODE sc2 = S_OK;
   
  
    astgDebugOut((DEB_ITRACE, "In  CAsyncStream::Read:%p()\n", this));
   
	do
	{
		sc = _pRealStm->Read(pv,cb,pcbRead);
		if (( STG_E_PENDING==sc) && ((sc2 = Notify())!= S_OK))
			return ResultFromScode(sc2); 

	} while (sc == STG_E_PENDING );   

    astgDebugOut((DEB_ITRACE, "Out CAsyncStream::Read\n"));	
    return ResultFromScode(sc); 	
}
//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStream::Write, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------

STDMETHODIMP CAsyncStream::Write(VOID const HUGEP *pv,
                                 ULONG cb,
                                 ULONG *pcbWritten)
{
    SCODE sc = S_OK;
	SCODE sc2 = S_OK;


    astgDebugOut((DEB_ITRACE, "In  CAsyncStream::Write:%p()\n", this));
   

    do
	{	sc = _pRealStm->Write(pv,cb,pcbWritten);

		if (( STG_E_PENDING==sc) && ((sc2 = Notify())!= S_OK))
			return ResultFromScode(sc2); 
	}  while (sc == STG_E_PENDING );   

    astgDebugOut((DEB_ITRACE, "Out CAsyncStream::Write\n"));	
    return ResultFromScode(sc); 	

}

//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStream::Seek, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------

STDMETHODIMP CAsyncStream::Seek(LARGE_INTEGER dlibMove,
                                DWORD dwOrigin,
                                ULARGE_INTEGER *plibNewPosition)
{
    SCODE sc = S_OK;
	SCODE sc2 = S_OK;
   
    astgDebugOut((DEB_ITRACE, "In  CAsyncStream::Seek:%p()\n", this));
   

    do
	{   
		sc = _pRealStm->Seek(dlibMove, dwOrigin,plibNewPosition);

		if (( STG_E_PENDING==sc) && ((sc2 = Notify())!= S_OK))
			return ResultFromScode(sc2); 

	}  while (sc == STG_E_PENDING );   

	astgDebugOut((DEB_ITRACE, "Out CAsyncStream::Seek\n"));	
    return ResultFromScode(sc); 	

}

//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStream::CopyTo, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------
STDMETHODIMP CAsyncStream::CopyTo(IStream *pstm,
                                  ULARGE_INTEGER cb,
                                  ULARGE_INTEGER *pcbRead,
                                  ULARGE_INTEGER *pcbWritten)
{
    SCODE sc = S_OK;
	SCODE sc2 = S_OK;

    astgDebugOut((DEB_ITRACE, "In  CAsyncStream::CopyTo:%p()\n", this));
   
    do
	{	sc = _pRealStm->CopyTo(pstm, cb,pcbRead, pcbWritten);

		if (( STG_E_PENDING==sc) && ((sc2 = Notify())!= S_OK))
			return ResultFromScode(sc2); 

	}   while (sc == STG_E_PENDING );   

    astgDebugOut((DEB_ITRACE, "Out CAsyncStream::CopyTo\n"));	
    return ResultFromScode(sc); 	

}
//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStream::SetSize, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------
STDMETHODIMP CAsyncStream::SetSize(ULARGE_INTEGER cb)
{
	
	SCODE sc = S_OK;
	SCODE sc2 = S_OK;


    astgDebugOut((DEB_ITRACE, "In  CAsyncStream::SetSize%p()\n", this));
   

    do
	{	sc = _pRealStm->SetSize(cb);
		if (( STG_E_PENDING==sc) && ((sc2 = Notify())!= S_OK))
			return ResultFromScode(sc2); 
	
	} while (sc == STG_E_PENDING );   
	
    astgDebugOut((DEB_ITRACE, "Out CAsyncStream::SetSize\n"));	
    return ResultFromScode(sc); 	
}
//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStream::Commit, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------
STDMETHODIMP CAsyncStream::Commit(DWORD grfCommitFlags)
{

	SCODE sc = S_OK;
	SCODE sc2 = S_OK;
   
    astgDebugOut((DEB_ITRACE, "In  CAsyncStream::Commit%p()\n", this));
   
    do
	{    
		sc = _pRealStm->Commit(grfCommitFlags);
		if (( STG_E_PENDING==sc) && ((sc2 = Notify())!= S_OK))
			return ResultFromScode(sc2); 

	}  while (sc == STG_E_PENDING );   
	
    astgDebugOut((DEB_ITRACE, "Out CAsyncStream::Commit\n"));	
    return ResultFromScode(sc); 	
}
//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStream::Revert, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------
STDMETHODIMP CAsyncStream::Revert(void)
{
    
	SCODE sc = S_OK;
	SCODE sc2 = S_OK;
  
    astgDebugOut((DEB_ITRACE, "In  CAsyncStream::Revert%p()\n", this));
   
    do
	{
		sc = _pRealStm->Revert();
		if (( STG_E_PENDING==sc) && ((sc2 = Notify())!= S_OK))
			return ResultFromScode(sc2); 

	} while (sc == STG_E_PENDING );   
	
    astgDebugOut((DEB_ITRACE, "Out CAsyncStream::Revert\n"));	
    return ResultFromScode(sc); 	
}
//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStream::LockRegion, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------
STDMETHODIMP CAsyncStream::LockRegion(ULARGE_INTEGER libOffset,
                                      ULARGE_INTEGER cb,
                                      DWORD dwLockType)
{
   
	SCODE sc = S_OK;
	SCODE sc2 = S_OK;
	
    astgDebugOut((DEB_ITRACE, "In  CAsyncStream::LockRegion%p()\n", this));
   

   do
   {	sc = _pRealStm->LockRegion(libOffset,
                                 cb,
                                 dwLockType);
		if (( STG_E_PENDING==sc) && ((sc2 = Notify())!= S_OK))
			return ResultFromScode(sc2); 


	} while (sc == STG_E_PENDING );   
   
    astgDebugOut((DEB_ITRACE, "Out CAsyncStream::LockRegion\n"));	
    return ResultFromScode(sc); 	
}						  
//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStream::UnlockRegion, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------
STDMETHODIMP CAsyncStream::UnlockRegion(ULARGE_INTEGER libOffset,
                                        ULARGE_INTEGER cb,
                                        DWORD dwLockType)
{
    SCODE sc = S_OK;
	SCODE sc2 = S_OK;

    astgDebugOut((DEB_ITRACE, "In  CAsyncStream::UnlockRegion%p()\n", this));
   
    do
	{
		sc = _pRealStm->UnlockRegion(libOffset,
                                   cb,
                                   dwLockType);		
		if (( STG_E_PENDING==sc) && ((sc2 = Notify())!= S_OK))
			return ResultFromScode(sc2); 

	}  while (sc == STG_E_PENDING );   
	
    astgDebugOut((DEB_ITRACE, "Out CAsyncStream::UnlockRegion\n"));	
    return ResultFromScode(sc); 	
}
//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStream::Stat, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------
STDMETHODIMP CAsyncStream::Stat(STATSTG *pstatstg, DWORD grfStatFlag)
{
    SCODE sc = S_OK;
	SCODE sc2 = S_OK;


    astgDebugOut((DEB_ITRACE, "In  CAsyncStream::Stat%p()\n", this));
   

    do
	{	sc = _pRealStm->Stat(pstatstg, grfStatFlag);
		if (( STG_E_PENDING==sc) && ((sc2 = Notify())!= S_OK))
			return ResultFromScode(sc2); 

	}  while (sc == STG_E_PENDING );   
	
    astgDebugOut((DEB_ITRACE, "Out CAsyncStream::Stat\n"));	
    return ResultFromScode(sc); 	
}



//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStream::Clone, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------

STDMETHODIMP CAsyncStream::Clone(IStream **ppstm)
{
    SCODE sc = S_OK;
	SCODE sc2 = S_OK;
	
    astgDebugOut((DEB_ITRACE, "In  CAsyncStream::Clone:%p()\n", this));
    do
    {
		sc = _pRealStm->Clone(ppstm);
		if (( STG_E_PENDING==sc) && ((sc2 = Notify())!= S_OK))
			return ResultFromScode(sc2); 
	
	}  while (sc == STG_E_PENDING );   
	
	
	
	if (SUCCEEDED(sc))
    {
        CAsyncStream *pwstm = new CAsyncStream(*ppstm, _pflb);
        *ppstm = (IStream *) pwstm;
		
    }	
    astgDebugOut((DEB_ITRACE, "Out CAsyncStream::Clone\n"));	
    return ResultFromScode(sc);   		
}

//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStream::EnumConnectionPoints, public
//
//  Synopsis:	Return enumerator on connection points
//
//  Arguments:	[ppEnum] -- Return pointer of enumerator
//
//  Returns:	Appropriate status code
//
//  History:	28-Dec-95	SusiA	Created
//
//----------------------------------------------------------------------------

STDMETHODIMP CAsyncStream::EnumConnectionPoints(
    IEnumConnectionPoints **ppEnum)
{
    astgDebugOut((DEB_ITRACE,
                  "In  CAsyncStream::EnumConnectionPoints:%p()\n",
                  this));
    astgDebugOut((DEB_ITRACE,
                  "Out CAsyncStream::EnumConnectionPoints\n"));
    return E_NOTIMPL;
}


//+---------------------------------------------------------------------------
//
//  Member:	CAsyncStream::FindConnectionPoint, public
//
//  Synopsis:	Return a connection point given an IID
//
//  Arguments:	[iid] -- IID to return connection point for
//              [ppCP] -- Return location for pointer
//
//  Returns:	Appropriate status code
//
//  History:	28-Dec-95	SusiA	Created
//
//----------------------------------------------------------------------------

STDMETHODIMP CAsyncStream::FindConnectionPoint(
    REFIID iid,
    IConnectionPoint **ppCP)
{
    astgDebugOut((DEB_ITRACE,
                  "In  CAsyncStream::FindConnectionPoint:%p()\n",
                  this));

    CConnectionPoint *pcp;
    
    if (IsEqualIID(iid, IID_IProgressNotify))
    {
        pcp = &_cpoint;
    }
    else
    {
        *ppCP = NULL;
        return E_NOINTERFACE;
    }

    pcp->AddRef();
    *ppCP = pcp;
    
    astgDebugOut((DEB_ITRACE,
                  "Out CAsyncStream::FindConnectionPoint\n"));
    return S_OK;
}

//+---------------------------------------------------------------------------
//
//  Member:	CAsyncEnum::QueryInterface, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------


STDMETHODIMP CAsyncEnum::QueryInterface(REFIID iid, void **ppvObj)
{
    SCODE sc = S_OK;
    *ppvObj = NULL;

    astgDebugOut((DEB_ITRACE, "In  CAsyncEnum::QueryInterface:%p()\n", this));    
    if (IsEqualIID(iid, IID_IUnknown)) 
     
    {
        *ppvObj = (IEnumSTATSTG *)this;
    }
    else if (IsEqualIID(iid, IID_IEnumSTATSTG))
    {
        *ppvObj = (IEnumSTATSTG *)this;
    }
    else if (IsEqualIID(iid, IID_IConnectionPointContainer))
    {
        *ppvObj = (IConnectionPointContainer *)this;
    }
    else
    {
        sc = E_NOINTERFACE;
    }

    if (SUCCEEDED(sc))
    {
        AddRef();
        _pRealEnum->AddRef();
    }
    astgDebugOut((DEB_ITRACE, "Out  CAsyncEnum::QueryInterface:%p()\n", this));    
    return sc;

}
//+---------------------------------------------------------------------------
//
//  Member:	CAsyncEnum::AddRef, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------
STDMETHODIMP_(ULONG) CAsyncEnum::AddRef(void)
{	
    ULONG ulRet;
    astgDebugOut((DEB_ITRACE, "In  CAsyncEnum::AddRef:%p()\n", this));
    InterlockedIncrement(&_cReferences);
    ulRet = _cReferences;
    _pRealEnum->AddRef();
    astgDebugOut((DEB_ITRACE, "Out CAsyncEnum::AddRef\n"));
    return ulRet;
	
}
//+---------------------------------------------------------------------------
//
//  Member:	CAsyncEnum::Release, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------
STDMETHODIMP_(ULONG) CAsyncEnum::Release(void)
{
    LONG lRet;
    astgDebugOut((DEB_ITRACE, "In  CAsyncEnum::Release:%p()\n", this));

    lRet = InterlockedDecrement(&_cReferences);
    _pRealEnum->Release();
    if (lRet == 0)
    {
        delete this;
    }
    else if (lRet < 0)
        lRet = 0;
    astgDebugOut((DEB_ITRACE, "Out CAsyncEnum::Release\n"));
    return (ULONG)lRet;

}

//+---------------------------------------------------------------------------
//
//  Member:	CAsyncEnum::EnumConnectionPoints, public
//
//  Synopsis:	Return enumerator on connection points
//
//  Arguments:	[ppEnum] -- Return pointer of enumerator
//
//  Returns:	Appropriate status code
//
//  History:	28-Dec-95	SusiA	Created
//
//----------------------------------------------------------------------------

STDMETHODIMP CAsyncEnum::EnumConnectionPoints(
    IEnumConnectionPoints **ppEnum)
{
    astgDebugOut((DEB_ITRACE,
                  "In  CAsyncEnum::EnumConnectionPoints:%p()\n",
                  this));
    astgDebugOut((DEB_ITRACE,
                  "Out CAsyncEnum::EnumConnectionPoints\n"));
    return E_NOTIMPL;
}


//+---------------------------------------------------------------------------
//
//  Member:	CAsyncEnum::FindConnectionPoint, public
//
//  Synopsis:	Return a connection point given an IID
//
//  Arguments:	[iid] -- IID to return connection point for
//              [ppCP] -- Return location for pointer
//
//  Returns:	Appropriate status code
//
//  History:	28-Dec-95	SusiA	Created
//
//----------------------------------------------------------------------------

STDMETHODIMP CAsyncEnum::FindConnectionPoint(
    REFIID iid,
    IConnectionPoint **ppCP)
{
    astgDebugOut((DEB_ITRACE,
                  "In  CAsyncEnum::FindConnectionPoint:%p()\n",
                  this));

    CConnectionPoint *pcp;
    
    if (IsEqualIID(iid, IID_IProgressNotify))
    {
        pcp = &_cpoint;
    }
    else
    {
        *ppCP = NULL;
        return E_NOINTERFACE;
    }

    pcp->AddRef();
    *ppCP = pcp;
    
    astgDebugOut((DEB_ITRACE,
                  "Out CAsyncEnum::FindConnectionPoint\n"));
    return S_OK;
}

//+---------------------------------------------------------------------------
//
//  Member:	CAsyncEnum::Next, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------
STDMETHODIMP CAsyncEnum::Next(ULONG celt, STATSTG FAR *rgelt, ULONG *pceltFetched)
{
	
    SCODE sc = S_OK;
	SCODE sc2 = S_OK;
    

    astgDebugOut((DEB_ITRACE, "In  CAsyncEnum::Next:%p()\n", this));
    do
	{	sc = _pRealEnum->Next(celt, rgelt, pceltFetched);
		if (( STG_E_PENDING==sc) && ((sc2 = Notify())!= S_OK))
			return ResultFromScode(sc2); 
	} while (sc == STG_E_PENDING );      

    astgDebugOut((DEB_ITRACE, "Out CAsyncEnum::Next\n"));	
    return ResultFromScode(sc);  
}
//+---------------------------------------------------------------------------
//
//  Member:	CAsyncEnum::Skip, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------
STDMETHODIMP CAsyncEnum::Skip(ULONG celt)
{
	
	SCODE sc = S_OK;
	SCODE sc2 = S_OK;
	

    astgDebugOut((DEB_ITRACE, "In  CAsyncEnum::Skip:%p()\n", this));
    sc = _pRealEnum->Skip(celt);
   
    do
	{
		sc = _pRealEnum->Reset();
		
		if (( STG_E_PENDING==sc) && ((sc2 = Notify())!= S_OK))
			return ResultFromScode(sc2); 

	} while (sc == STG_E_PENDING );      

    astgDebugOut((DEB_ITRACE, "Out CAsyncEnum::Skip\n"));	
    return ResultFromScode(sc);  
}
//+---------------------------------------------------------------------------
//
//  Member:	CAsyncEnum::Reset, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------
STDMETHODIMP CAsyncEnum::Reset(void)
{
	
	SCODE sc = S_OK;
	SCODE sc2 = S_OK;

    astgDebugOut((DEB_ITRACE, "In  CAsyncEnum::Reset:%p()\n", this));
   
	do
	{	
		sc = _pRealEnum->Reset();

		if (( STG_E_PENDING==sc) && ((sc2 = Notify())!= S_OK))
			return ResultFromScode(sc2); 

	} while (sc == STG_E_PENDING );      

    astgDebugOut((DEB_ITRACE, "Out CAsyncEnum::Reset\n"));	
    return ResultFromScode(sc);  
}
//+---------------------------------------------------------------------------
//
//  Member:	CAsyncEnum::Clone, public
//
//  Synopsis:	
//
//  Returns:	Appropriate status code
//
//  History:	01-Jan-96	SusiA	Created
//
//----------------------------------------------------------------------------
STDMETHODIMP CAsyncEnum::Clone(IEnumSTATSTG **ppenm)
{
	
    SCODE sc = S_OK;
	SCODE sc2 = S_OK;
 
    astgDebugOut((DEB_ITRACE, "In  CAsyncEnum::Clone:%p()\n", this));
    
	do
	{

		sc = _pRealEnum->Clone(ppenm);
		
		if (( STG_E_PENDING==sc) && ((sc2 = Notify())!= S_OK))
			return ResultFromScode(sc2); 

	}  while (sc == STG_E_PENDING );      
	
	
	if (SUCCEEDED(sc))
    {
        CAsyncEnum *pwenum = new CAsyncEnum(*ppenm, _pflb);
        *ppenm = (IEnumSTATSTG *) pwenum;
		
    }	
    astgDebugOut((DEB_ITRACE, "Out CAsyncEnum::Clone\n"));	
    return ResultFromScode(sc);   	
}