182 lines
4.3 KiB
C++
182 lines
4.3 KiB
C++
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//+---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1996 - 1996.
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//
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// File: astgconn.hxx
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//
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// Contents:
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//
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// Classes:
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//
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// Functions:
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//
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// History: 28-Mar-96 PhilipLa Created
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//
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//----------------------------------------------------------------------------
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#ifndef __ASTGCONN_HXX__
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#define __ASTGCONN_HXX__
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#ifdef ASYNC
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#include <sinklist.hxx>
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#endif
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#include <ocidl.h>
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interface IDocfileAsyncConnectionPoint;
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//+---------------------------------------------------------------------------
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//
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// Class: CAsyncConnection
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//
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// Purpose: Provide connection point for objects operating in async
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// docfile.
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//
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// History: 28-Mar-96 PhilipLa Created
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//
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// Notes:
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//
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//----------------------------------------------------------------------------
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class CAsyncConnection: public IConnectionPoint
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{
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public:
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inline CAsyncConnection();
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SCODE Init(IConnectionPointContainer *pCPC,
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CAsyncConnection *pacParent);
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SCODE InitClone(IConnectionPointContainer *pCPC,
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CAsyncConnection *pac);
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SCODE InitMarshal(IConnectionPointContainer *pCPC,
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DWORD dwAsyncFlags,
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IDocfileAsyncConnectionPoint *pdacp);
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~CAsyncConnection();
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//From IUnknown
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STDMETHOD(QueryInterface)(REFIID iid, void **ppvObj);
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STDMETHOD_(ULONG,AddRef)(void);
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STDMETHOD_(ULONG,Release)(void);
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//From IConnectionPoint
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STDMETHOD(GetConnectionInterface)(IID *pIID);
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STDMETHOD(GetConnectionPointContainer)(IConnectionPointContainer ** ppCPC);
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STDMETHOD(Advise)(IUnknown *pUnkSink, DWORD *pdwCookie);
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STDMETHOD(Unadvise)(DWORD dwCookie);
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STDMETHOD(EnumConnections)(IEnumConnections **ppEnum);
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SCODE Init(void);
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SCODE Notify(SCODE scFailure,
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ILockBytes *pilb,
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CPerContext *ppc,
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CSafeSem *pss);
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inline BOOL IsInitialized(void) const;
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inline IDocfileAsyncConnectionPoint * GetMarshalPoint(void);
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inline void SetAsyncFlags(DWORD dwAsyncFlags);
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inline DWORD GetAsyncFlags(void) const;
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private:
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IConnectionPointContainer *_pCPC;
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IDocfileAsyncConnectionPoint *_pdacp;
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DWORD _dwAsyncFlags;
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LONG _cReferences;
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};
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inline CAsyncConnection::CAsyncConnection()
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{
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_pCPC = NULL;
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_cReferences = 1;
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_pdacp = NULL;
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_dwAsyncFlags = 0;
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}
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inline void CAsyncConnection::SetAsyncFlags(DWORD dwAsyncFlags)
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{
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_dwAsyncFlags = dwAsyncFlags;
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}
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inline DWORD CAsyncConnection::GetAsyncFlags(void) const
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{
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return _dwAsyncFlags;
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}
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inline BOOL CAsyncConnection::IsInitialized(void) const
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{
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return (_pdacp != NULL);
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}
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inline IDocfileAsyncConnectionPoint * CAsyncConnection::GetMarshalPoint(void)
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{
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return _pdacp;
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}
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class CAsyncConnectionContainer: public IConnectionPointContainer
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{
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public:
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SCODE InitConnection(CAsyncConnection *pacParent);
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SCODE InitClone(CAsyncConnection *pac);
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SCODE InitMarshal(IDocfileAsyncConnectionPoint *pdacp);
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inline void SetAsyncFlags(DWORD dwAsyncFlags);
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//From IConnectionPointContainer
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STDMETHOD(EnumConnectionPoints)(IEnumConnectionPoints **ppEnum);
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STDMETHOD(FindConnectionPoint)(REFIID iid, IConnectionPoint **ppCP);
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protected:
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inline IDocfileAsyncConnectionPoint * GetMarshalPoint(void);
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CAsyncConnection _cpoint;
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};
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inline void CAsyncConnectionContainer::SetAsyncFlags(DWORD dwAsyncFlags)
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{
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_cpoint.SetAsyncFlags(dwAsyncFlags);
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}
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inline IDocfileAsyncConnectionPoint *
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CAsyncConnectionContainer::GetMarshalPoint(void)
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{
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return _cpoint.GetMarshalPoint();
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}
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#ifdef ASYNC
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#define BEGIN_PENDING_LOOP \
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do \
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{
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//Note: There is a return in this macro. Cleanup needs to be done
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// before the macro is used.
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#define END_PENDING_LOOP \
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if (!ISPENDINGERROR(sc)) \
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{ \
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break; \
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} \
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else \
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{ \
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SCODE sc2; \
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sc2 = _cpoint.Notify(sc, \
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_ppc->GetBase(), \
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_ppc, \
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&_ss); \
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if (sc2 != S_OK) \
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{ \
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return ResultFromScode(sc2); \
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} \
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} \
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} while (TRUE);
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#else
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#define BEGIN_PENDING_LOOP
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#define END_PENDING_LOOP
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#endif
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#endif // #ifndef __ASTGCONN_HXX__
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