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/*++
Copyright (c) 1996 Microsoft Corporation
Module Name:
connect.h
Abstract:
defines for event/sink interface for IIS MetaBase.
Author:
Michael W. Thomas 04-Oct-96
Revision History:
--*/
#if !defined(CONNECT_H)
#define CONNECT_H
#ifdef __cplusplus
// Types that should be in OLE2.H
#ifndef PPVOID
typedef LPVOID* PPVOID; #endif
// Convenient macros.
#define RELEASE_INTERFACE(p)\
{\ IUnknown* pTmp = (IUnknown*)p;\ p = NULL;\ if (NULL != pTmp)\ pTmp->Release();\ }
// An enumeration giving symbol names for the connection
// points offered by the DllPaper component in this server.
enum { MD_CONNPOINT_WRITESINK_A = 0, MD_CONNPOINT_WRITESINK_W };
enum { // The maximum number of connection points offered by the DllPaper
// component in this STOSERVE server. The number of items in the
// connection point enumeration above.
MAX_CONNECTION_POINTS = 2,
// A constant for the number of connections to add to the allocation
// of the dynamic connection array.
ALLOC_CONNECTIONS = 256,
// The start value for the connection key (cookie) counter.
COOKIE_START_VALUE = 500 };
/*O+O+++O+++O+++O+++O+++O+++O+++O+++O+++O+++O+++O+++O+++O+++O+++O+++O+++O+++O
ObjectClass: COEnumConnectionPoints
Summary: COM object class for enumerating the Connection Points offered by a connectable object.
Interfaces: IUnknown Standard interface providing COM object features. IEnumConnectionPoints Interface for connection point enumeration.
Aggregation: COEnumConnectionPoints COM Objects are not aggregatable. O---O---O---O---O---O---O---O---O---O---O---O---O---O---O---O---O---O---O-O*/ class COEnumConnectionPoints : public IEnumConnectionPoints { public: // Main Object Constructor & Destructor.
COEnumConnectionPoints(IUnknown* pHostObj); ~COEnumConnectionPoints(void);
// A general method for initializing this newly created object.
// Creates any subordinate arrays, structures, or objects.
HRESULT Init( ULONG cConnPts, IConnectionPoint** paConnPts, ULONG iEnumIndex);
// IUnknown methods. Main object, non-delegating.
STDMETHODIMP QueryInterface(REFIID, PPVOID); STDMETHODIMP_(ULONG) AddRef(void); STDMETHODIMP_(ULONG) Release(void);
// IEnumConnectionPoints methods.
STDMETHODIMP Next(ULONG, IConnectionPoint**, ULONG*); STDMETHODIMP Skip(ULONG); STDMETHODIMP Reset(void); STDMETHODIMP Clone(IEnumConnectionPoints**);
private: // Private data of COEnumConnectionPoints COM objects.
// Main Object reference count.
ULONG m_cRefs;
// IUnknown pointer to host COM object being enumerated.
IUnknown* m_pHostObj;
// Connection Point index variable.
ULONG m_iEnumIndex;
// Number of Connection Points being enumerated.
ULONG m_cConnPts;
// Allocated array of Connection Point interface pointers.
IConnectionPoint** m_paConnPts; };
typedef COEnumConnectionPoints* PCOEnumConnectionPoints;
/*O+O+++O+++O+++O+++O+++O+++O+++O+++O+++O+++O+++O+++O+++O+++O+++O+++O+++O+++O
ObjectClass: COConnectionPoint
Summary: Connection Point COM object class. Implements a native IConnectionPoint interface. The Advise, Unadvise, and EnumConnections methods use the CThreaded OwnThis mechanism to provide thread-safe mutually exclusive access to this connection point object.
Interfaces: IUnknown Standard interface providing COM object features. IConnectionPoint Interface for connection point features.
Aggregation: COConnectionPoint COM Objects are not aggregatable. O---O---O---O---O---O---O---O---O---O---O---O---O---O---O---O---O---O---O-O*/ class COConnectionPoint : public IConnectionPoint { public: // Main Object Constructor & Destructor.
COConnectionPoint(IUnknown* pHostObj); ~COConnectionPoint(void);
// A general method for initializing this newly created object.
// Creates any subordinate arrays, structures, or objects.
HRESULT Init(REFIID riid);
// IUnknown methods. Main object, non-delegating.
STDMETHODIMP QueryInterface(REFIID, PPVOID); STDMETHODIMP_(ULONG) AddRef(void); STDMETHODIMP_(ULONG) Release(void);
// IConnectionPoint methods.
STDMETHODIMP GetConnectionInterface(IID*); STDMETHODIMP GetConnectionPointContainer(IConnectionPointContainer**); STDMETHODIMP Advise(IUnknown*, DWORD*); STDMETHODIMP Unadvise(DWORD); STDMETHODIMP EnumConnections(IEnumConnections**);
// Helper functions
STDMETHODIMP InternalEnumSinks( CONNECTDATA **prgConnections, ULONG *pcConnections);
private: // Private utility methods of COConnectionPoint.
HRESULT GetSlot(UINT* puiFreeSlot); HRESULT FindSlot(DWORD dwCookie, UINT* puiSlot);
// Private data of COConnectionPoint COM objects.
// Main Object reference count.
ULONG m_cRefs;
// IUnknown pointer to host COM object offering this connection point.
IUnknown* m_pHostObj;
// The IID of the sink interface associated with this connection point.
IID m_iidSink;
// The current connection cookie (key) counter.
DWORD m_dwNextCookie;
// The current number of live sink connections to this connection point.
UINT m_cConnections;
// The current maximum index into the dynamic connection array.
UINT m_uiMaxIndex;
// The dynamic array of sink connections to this connection point.
CONNECTDATA* m_paConnections; };
typedef COConnectionPoint* PCOConnectionPoint;
/*O+O+++O+++O+++O+++O+++O+++O+++O+++O+++O+++O+++O+++O+++O+++O+++O+++O+++O+++O
ObjectClass: COEnumConnections
Summary: COM object class for enumerating the connections of a connection point of a connectable object.
Interfaces: IUnknown Standard interface providing COM object features. IEnumConnections Interface for connection enumeration features.
Aggregation: COEnumConnections COM Objects are not aggregatable. O---O---O---O---O---O---O---O---O---O---O---O---O---O---O---O---O---O---O-O*/ class COEnumConnections : public IEnumConnections { public: // Main Object Constructor & Destructor.
COEnumConnections(IUnknown* pHostObj); ~COEnumConnections(void);
// A general method for initializing this newly created object.
// Creates any subordinate arrays, structures, or objects.
HRESULT Init( ULONG cConnections, CONNECTDATA* paConnections, ULONG iEnumIndex);
// IUnknown methods. Main object, non-delegating.
STDMETHODIMP QueryInterface(REFIID, PPVOID); STDMETHODIMP_(ULONG) AddRef(void); STDMETHODIMP_(ULONG) Release(void);
// IEnumConnections methods.
STDMETHODIMP Next(ULONG, CONNECTDATA*, ULONG*); STDMETHODIMP Skip(ULONG); STDMETHODIMP Reset(void); STDMETHODIMP Clone(IEnumConnections**);
private: // Private data of COEnumConnections COM objects.
// Main Object reference count.
ULONG m_cRefs;
// IUnknown pointer to host connection point COM object being
// enumerated.
IUnknown* m_pHostObj;
// Connection index variable.
ULONG m_iEnumIndex;
// Number of Connections being enumerated.
ULONG m_cConnections;
// Allocated array of live Connections only.
CONNECTDATA* m_paConnections; };
typedef COEnumConnections* PCOEnumConnections;
#endif // __cplusplus
#endif // CONNECT_H
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