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// File: ichnldat.h
//
#ifndef _ICHNLDAT_H_
#define _ICHNLDAT_H_
typedef enum _scState { /* State of data channel */ SCS_UNINITIALIZED = 0, // Nothing is valid
SCS_CREATESAP, // Creating m_gcc_pIAppSap
SCS_ATTACH, // Attaching
SCS_ENROLL, // Enrolling in a conference
SCS_JOIN_PRIVATE, // Join the private channel
SCS_REGRETRIEVE, // Checking the registry
SCS_REGRETRIEVE_NEW, // new channel must be created
SCS_REGRETRIEVE_EXISTS, // channel already exists
SCS_JOIN_NEW, // Creating a new MCS channel
SCS_REGCHANNEL, // Registering the MCS channel
SCS_JOIN_OLD, // Joining an existing channel
SCS_REGPRIVATE, // Register the private channel
SCS_CONNECTED, // m_mcs_channel_id is valid
SCS_TERMINATING, // shutting down
SCS_JOIN_STATIC_CHANNEL // Join a static channel
} SCSTATE;
// An application key consists of an MS Object ID + guid identifier + guid + node id
#define cbKeyApp (4 + 1 + sizeof(GUID) + sizeof(DWORD))
#define MAX_CHECKID_COUNT 80 // Maximum number of times to ask for channel Id
typedef struct _tagUcid { DWORD dwUserId; // Node ID
ChannelID channelId; // Private channel ID
UserID sender_id_public; UserID sender_id_private;} UCID;
// CNmMemberId
class CNmMemberId{private: UINT m_cCheckId; // non-zero means checking the ID
ChannelID m_channelId; // Private channel ID
UserID m_sender_id_public; UserID m_sender_id_private;
CNmMember *m_pMember;
public: CNmMemberId(CNmMember *pMember, UCID *pucid);
ChannelID GetChannelId(void) {return m_channelId;} ChannelID SenderId(void) {return m_sender_id_public;}
VOID UpdateRosterInfo(UCID * pucid); BOOL FSenderId(UserID id) {return ((id == m_sender_id_public) || (id == m_sender_id_private));}
UINT GetCheckIdCount(void) {return m_cCheckId;} VOID SetCheckIdCount(UINT c) {m_cCheckId = c;}
CNmMember *GetMember(void) {return m_pMember;}};
// INmChannelData
//
class CNmChannelData : public INmChannelData, public RefCount, public CConnectionPointContainer{private: GUID m_guid; // SetGuid/GetGuid
BOOL m_fClosed; // TRUE when CloseConnection is called
BOOL m_fActive; // TRUE when data channel is active
DWORD m_dwUserIdLocal; // Data channel needs to know local user id
CConfObject * m_pConference; // Helpful to get member list
ULONG m_cMember; // Number of members in this channel
COBLIST * m_pListMemberId; // Member id list
COBLIST * m_pListMember; // Member list
PGCCEnrollRequest m_pGCCER; // Enroll request from enrolling app
public: CNmChannelData(CConfObject * pConference, REFGUID rguid); ~CNmChannelData();
// Internal functions
GUID * PGuid(void) {return &m_guid;} VOID UpdatePeer(CNmMember * pMember, UCID *pucid, BOOL fAdd); VOID UpdateRoster(UCID * rgPeer, int cPeer, BOOL fAdd, BOOL fRemove); VOID UpdateMemberChannelId(DWORD dwUserId, ChannelID channelId); HRESULT OpenConnection(void); HRESULT CloseConnection(void);
ULONG IsEmpty() {return 0 == m_cMember;} COBLIST * GetMemberList() {return m_pListMember;} VOID AddMember(CNmMember * pMember); VOID RemoveMember(CNmMember * pMember);
CNmMemberId *GetMemberId(CNmMember *pMember); CNmMemberId *GetMemberId(DWORD dwUserId); VOID UpdateRosterInfo(CNmMember *pMember, UCID * pucid); ChannelID GetChannelId(CNmMember *pMember); CNmMember *PMemberFromSenderId(UserID id); CConfObject * PConference() {return m_pConference;} DWORD GetLocalId() {return m_dwUserIdLocal;}
// INmChannelData methods
STDMETHODIMP IsActive(void); STDMETHODIMP SetActive(BOOL fActive); STDMETHODIMP GetConference(INmConference **ppConference); STDMETHODIMP EnumMember(IEnumNmMember **ppEnum); STDMETHODIMP GetMemberCount(ULONG * puCount); STDMETHODIMP GetGuid(GUID *pguid); STDMETHODIMP SendData(INmMember *pMember, ULONG uSize, LPBYTE pb, ULONG uOptions); STDMETHODIMP RegistryAllocateHandle(ULONG numberOfHandlesRequested);
// IUnknown methods
ULONG STDMETHODCALLTYPE AddRef(void); ULONG STDMETHODCALLTYPE Release(void); STDMETHODIMP QueryInterface(REFIID riid, PVOID *ppvObj);
/////////////////////////////////////////////////////////////
// class CT120Channel
private: DWORD DoJoin(SCSTATE scs);
DWORD DoJoinStatic(ChannelID staticChannel); DWORD DoCreateSap(void); DWORD DoEnroll(void); DWORD DoJoinPrivate(void); DWORD DoAttach(void); DWORD DoRegRetrieve(void); DWORD DoRegChannel(void); DWORD DoJoinNew(void); DWORD DoJoinOld(void); DWORD DoRegPrivate(void);
VOID OnEntryConfirmRemote(GCCAppSapMsg * pMsg); VOID OnEntryConfirmLocal(GCCAppSapMsg * pMsg);
public: // Methods:
VOID InitCT120Channel(DWORD dwUserId);
GUID * m_pGuid; CNmChannelData * m_pChannel;
DWORD m_dwUserId; BYTE m_keyApp[cbKeyApp]; BYTE m_keyChannel[cbKeyApp];
SCSTATE m_scs; // Current state
GCCConferenceID m_gcc_conference_id; IGCCAppSap *m_gcc_pIAppSap; GCCSessionKey m_gcc_session_key; GCCRegistryKey m_gcc_registry_key; GCCRegistryItem m_gcc_registry_item;
GCCRegistryKey m_registry_key_Private; GCCRegistryItem m_registry_item_Private; ChannelID m_mcs_channel_id; // public channel ID
PIMCSSap m_pmcs_sap;
UserID m_gcc_node_id;
// m_mcs_sender_id is the result of MCS_ATTACH_USER_CONFIRM.
// It is also the "sender_id" in MCS_SEND_DATA_INDICATION
UserID m_mcs_sender_id;
// Properties:
BOOL FConnected(void) {return (SCS_CONNECTED == m_scs);} ChannelID GetMcsChannelId() {return m_mcs_channel_id;} ChannelID SenderChannelId() {return m_mcs_sender_id;}
VOID CloseChannel(VOID); HRESULT HrSendData(ChannelID channelId, DWORD dwUserId, LPVOID lpv, DWORD cb, ULONG opt); VOID UpdateScState(SCSTATE scs, DWORD dwErr); VOID ProcessEntryConfirm(GCCAppSapMsg * pMsg); BOOL UpdateRoster(GCCAppSapMsg * pMsg); VOID RemovePeer(UINT iPeer); VOID RequestChannelId(DWORD dwUserId); VOID NotifyChannelConnected(void); VOID ProcessHandleConfirm(GCCAppSapMsg * pMsg);
};DECLARE_STANDARD_TYPES(CNmChannelData);
void CALLBACK NmGccMsgHandler(GCCAppSapMsg * pMsg);void CALLBACK NmMcsMsgHandler(unsigned int uMsg, LPARAM lParam, PVOID pv);
// list management
POSITION AddNode(PVOID pv, COBLIST **ppList);PVOID RemoveNodePos(POSITION * pPos, COBLIST *pList);VOID RemoveNode(PVOID pv, COBLIST * pList);
// Data Notification Structure
typedef struct { INmMember * pMember; LPBYTE pb; ULONG cb; ULONG dwFlags;} NMN_DATA_XFER;
// Global Routines
VOID FreeMemberIdList(COBLIST ** ppList);HRESULT OnNmDataSent(IUnknown *pConferenceNotify, void *pv, REFIID riid);HRESULT OnNmDataReceived(IUnknown *pConferenceNotify, void *pv, REFIID riid);HRESULT OnAllocateHandleConfirm(IUnknown *pConferenceNotify, void *pv, REFIID riid);
#endif // _ICHNLDAT_H_
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