Leaked source code of windows server 2003
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/*
* arost.h
*
* Copyright (c) 1995 by DataBeam Corporation, Lexington, KY
*
* Abstract:
* Instances of this class represent a single Application Roster's
* information base. This includes both application record information and
* capabilities information. This is one of the most complex classes in
* all of GCC. It has a number of responsibilities and must maintain the
* information in a very structured way to preserve the connection
* hierarchy of the records. This is necessary so that collapsed
* capabilities lists can be calculated as changes to the roster are
* propagated up to the Top Provider.
*
* Similar to the CConfRoster class, the CAppRoster class
* encapsulates all the functionality required to maintain the roster
* information base which includes the ability to add new records, delete
* records and update records. It has the ability to convert its internal
* information base into a list of application records that can be used in
* a GCC_APP_ROSTER_UPDATE_INDICATION callback. It is also responsible for
* converting its internal information base into Roster Update PDUs.
* Basically, this class is responsible for all operations that require
* direct access to the records contained in an Application Roster.
*
* The CAppRoster class is also responsible for maintaining the
* capabilities list. This includes storage as well as calculation of the
* collapsed capabilities list. This class is also responsible for
* converting the internal capabilities list information base into a list
* that can be used in a GCC_APP_ROSTER_UPDATE_INDICATION callback. It is
* also responsible for converting its internal capabilities list
* information base into the capabilities list portion of a Roster Update
* PDU. Basically, this class is responsible for all operations that
* require direct access to the capabilities list.
*
* An Application Roster object has the ability to serialize its roster
* data into a single contiguous memory block when it is required to send a
* message to the application interface. This serialization process is
* managed externally by the CAppRosterMsg class through calls
* to LockApplicationRoster(), UnLockApplicationRoster() and
* GetAppRoster(). When an Application Roster is to be serialized,
* a call is made to LockApplicationRoster() which causes the
* CAppRoster object to increment an internal lock count and returns
* the number of bytes required to hold the complete roster update. The
* Application Roster is then serialized into memory through a call to
* GetAppRoster(). The CAppRoster is then unlocked to allow
* it to be deleted when the free flag gets set through the
* FreeApplicationRoster() function. In the current implementation of GCC,
* FreeApplicationRoster() is not used since the CAppRosterMsg
* maintains the data used to deliver the message (see a more detailed
* description of the lock, free and unlock mechanism in the section
* describing the data containers).
*
* The Application Roster class incorporates a number of Rogue Wave list to
* both hold the roster record information and to maintain the connection
* hierarchy. In many cases there are lists which contain lists. The
* details of this get extremely complicated. The Application Roster
* object also is responsible for maintaining internal PDU data which is
* updated whenever a change occurs to its internal information base. This
* PDU can be affected by both local request or by processing incoming
* PDUs. Higher level objects access this PDU data by calling the
* Application Roster's flush routine which in turn causes the PDU to be
* freed on any subsequent request that affects the rosters internal
* information base.
*
* Caveats:
* None.
*
* Author:
* blp/jbo
*/
#ifndef _APPLICATION_ROSTER_
#define _APPLICATION_ROSTER_
#include "gccpdu.h"
#include "capid.h"
#include "sesskey.h"
#include "appcap.h"
#include "igccapp.h"
typedef enum
{
APP_ADD_RECORD,
APP_DELETE_RECORD,
APP_REPLACE_RECORD,
APP_FULL_REFRESH,
APP_NO_CHANGE
}
APP_ROSTER_UPDATE_TYPE;
/*
** Holds list of capabilities "list" for each protocol entity at a single node.
** Remember that there can be multiple protocol entities with identical session
** keys at a single node. Also remember that each of these protocol entities
** can have multiple capabilities.
*/
class CListOfAppCapItemList2 : public CList2
{
DEFINE_CLIST2_(CListOfAppCapItemList2, CAppCapItemList*, EntityID)
void DeleteList(void);
};
/*
** This is the definition for a single application record. All the application
** information (except collapsed capability info) is contained as part of this
** record.
*/
typedef struct APP_RECORD
{
BOOL is_enrolled_actively;
BOOL is_conducting_capable;
BOOL was_conducting_capable;
MCSChannelType startup_channel_type;
UserID application_user_id;
CAppCapItemList non_collapsed_caps_list;
}
APP_RECORD;
/*
** This list is used to keep track of the application records at a single node.
** Since you can have multiple "Protocol Entities" at a single node we use
** the entity id (which is unique at a node) to index into this list.
*/
class CAppRecordList2 : public CList2
{
DEFINE_CLIST2_(CAppRecordList2, APP_RECORD*, EntityID)
};
/*
** This list is used to hold the application record lists for each sub-node
** of a particular node.
*/
class CSubNodeListOfRecordList2 : public CList2
{
DEFINE_CLIST2_(CSubNodeListOfRecordList2, CAppRecordList2*, UserID)
};
/*
** APP_NODE_RECORD
**
** Below are all the definitions for the application node record. An
** application node record holds all the application information for either the
** local node or a directly connected node. Note that if the node is the Top
** Provider the AppRosterRecordList list will contain information about every
** "matching" application protocol entity in the entire system. Matching here
** means APE's that have the same session key.
**
** An application "roster" record contains all of the following:
**
** AppRecordList - The list of app records for the protocol
** entities at this node.
**
** ListOfAppCapItemList2 - This list holds the list of capabilities for
** each protocol entity at this node.
**
** SubNodeList2 - This list holds the app_record_list for all the
** nodes below this node in the connection
** hierarchy.
**
** CollapsedCapList - This holds the collapsed capabilities for
** all the nodes below this one in the connection
** hierarchy. Note that the
** list_of_capabilities_list is not included in
** this collapsed list.
**
** Notice that there is a constructor within this structure. This is
** needed for the two hash list dictionaries that get instantiated when
** an AppRosterRecord structure gets instantiated.
*/
typedef struct APP_NODE_RECORD
{
APP_NODE_RECORD(void);
CAppRecordList2 AppRecordList;
CListOfAppCapItemList2 ListOfAppCapItemList2;
CSubNodeListOfRecordList2 SubNodeList2;
CAppCapItemList CollapsedCapList;
}
APP_NODE_RECORD;
/*
** This list holds all roster records of nodes that are directly connected to
** this node. This list also includes the application records for the local
** Application Protocol entities. Note that all nodes below this node that
** are not directly connected to this node are contained in the sub-node list
** of the various APP_NODE_RECORD(s) that are contained in this list.
*/
//
// LONCHANC: Can CAppNodeRecordList2 be part of CAppRoster?
// why it is separated from CAppRoster???
//
class CAppNodeRecordList2 : public CList2
{
DEFINE_CLIST2_(CAppNodeRecordList2, APP_NODE_RECORD*, UserID)
};
class CAppRosterMgr;
class CAppRoster : public CRefCount
{
public:
CAppRoster(
PGCCSessionKey,
PSessionKey,
CAppRosterMgr *,
BOOL fTopProvider,
BOOL fLocalRoster,
BOOL fMaintainPduBuffer,
PGCCError);
~CAppRoster(void);
/*
* Utilities that operate on roster update PDU strucutures.
*/
void FlushRosterUpdateIndicationPDU(PSetOfApplicationInformation *);
GCCError BuildFullRefreshPDU(void);
GCCError ProcessRosterUpdateIndicationPDU(PSetOfApplicationInformation, UserID);
/*
* Utilities that operate on application records.
*/
UINT LockApplicationRoster(void);
void UnLockApplicationRoster(void);
UINT GetAppRoster(PGCCApplicationRoster, LPBYTE pData);
GCCError AddRecord(GCCEnrollRequest *, GCCNodeID, GCCEntityID);
GCCError RemoveRecord(GCCNodeID, GCCEntityID);
GCCError ReplaceRecord(GCCEnrollRequest *, GCCNodeID, GCCEntityID);
GCCError RemoveUserReference(UserID);
UINT GetNumberOfApplicationRecords(void);
CSessKeyContainer *GetSessionKey(void) { return m_pSessionKey; }
void ResetApplicationRoster(void);
BOOL DoesRecordExist(UserID, EntityID);
BOOL HasRosterChanged(void) { return m_fRosterHasChanged; }
private:
/*
* Utilities used to create a roster update indication PDU.
*/
GCCError BuildApplicationRecordListPDU(APP_ROSTER_UPDATE_TYPE, UserID, EntityID);
GCCError BuildSetOfRefreshesPDU(void);
GCCError BuildSetOfUpdatesPDU(APP_ROSTER_UPDATE_TYPE, UserID, EntityID);
GCCError BuildApplicationRecordPDU(APP_RECORD *, PApplicationRecord);
GCCError BuildSetOfCapabilityRefreshesPDU(void);
GCCError BuildSetOfNonCollapsingCapabilitiesPDU(PSetOfNonCollapsingCapabilities *, CAppCapItemList *);
/*
* Utilities used to Free a roster update indication PDU.
*/
void FreeRosterUpdateIndicationPDU(void);
void FreeSetOfRefreshesPDU(void);
void FreeSetOfUpdatesPDU(void);
void FreeSetOfCapabilityRefreshesPDU(void);
void FreeSetOfNonCollapsingCapabilitiesPDU(PSetOfNonCollapsingCapabilities);
/*
* Utilities used to Process roster update indications.
*/
GCCError ProcessSetOfRefreshesPDU(PSetOfApplicationRecordRefreshes, UserID uidSender);
GCCError ProcessSetOfUpdatesPDU(PSetOfApplicationRecordUpdates, UserID uidSender);
GCCError ProcessApplicationRecordPDU(APP_RECORD *, PApplicationRecord);
GCCError ProcessSetOfCapabilityRefreshesPDU(PSetOfApplicationCapabilityRefreshes, UserID uidSender);
GCCError ProcessNonCollapsingCapabilitiesPDU(CAppCapItemList *non_collapsed_caps_list,
PSetOfNonCollapsingCapabilities set_of_capabilities);
/*
* Utilities used to operate on conference roster reports.
*/
UINT GetApplicationRecords(PGCCApplicationRoster, LPBYTE memory);
UINT GetCapabilitiesList(PGCCApplicationRoster, LPBYTE memory);
UINT GetNonCollapsedCapabilitiesList(PGCCApplicationRecord, CAppCapItemList *, LPBYTE memory);
void FreeApplicationRosterData(void);
GCCError AddCollapsableCapabilities(CAppCapItemList *, UINT cCaps, PGCCApplicationCapability *);
GCCError AddNonCollapsedCapabilities(CAppCapItemList *, UINT cCaps, PGCCNonCollapsingCapability *);
GCCError ClearNodeRecordFromList(UserID);
void ClearNodeRecordList(void);
GCCError DeleteRecord(UserID, EntityID, BOOL clear_empty_records);
void DeleteApplicationRecordData(APP_RECORD *);
GCCError MakeCollapsedCapabilitiesList(void);
GCCError AddCapabilityToCollapsedList(APP_CAP_ITEM *);
BOOL DoCapabilitiesListMatch(UserID, EntityID, UINT cCapas, PGCCApplicationCapability *);
private:
UINT m_nInstance;
CAppRosterMgr *m_pAppRosterMgr;
UINT m_cbDataMemory;
BOOL m_fTopProvider;
BOOL m_fLocalRoster;
CSessKeyContainer *m_pSessionKey;
BOOL m_fRosterHasChanged;
BOOL m_fPeerEntitiesAdded;
BOOL m_fPeerEntitiesRemoved;
BOOL m_fCapabilitiesHaveChanged;
CAppNodeRecordList2 m_NodeRecordList2;
//
// LONCHANC: What is the difference between m_NodeRecordList2.CollapsedCapList and
// the following m_CollapsedCapListForAllNodes?
//
// LONCHANC: m_CollapsedCapListForAllNodes is a complete list of collapsed capability list across
// the entire node record list.
//
CAppCapItemList m_CollapsedCapListForAllNodes;
BOOL m_fMaintainPduBuffer;
BOOL m_fPduIsFlushed;
SetOfApplicationInformation m_SetOfAppInfo;
PSetOfApplicationRecordUpdates m_pSetOfAppRecordUpdates;
};
#endif // _APPLICATION_ROSTER_
/*
* CAppRoster( PGCCSessionKey session_key,
* UINT owner_message_base,
* BOOL is_top_provider,
* BOOL is_local_roster,
* BOOL maintain_pdu_buffer,
* PGCCError return_value)
*
* Public Function Description
* This is the application roster constructor used when the session key is
* made available through local means (not PDU data). It is responsible for
* initializing all the instance variables used by this class.
*
* Formal Parameters:
* session_key - (i) The session key associated with this roster.
* owner_object - (i) Pointer to the object that owns this object.
* owner_message_base - (i) Message base to add to all owner callbacks.
* is_top_provider - (i) Flag indicating if this is a top provider.
* is_local_roster - (i) Flag indicating if this is a local roster.
* maintain_pdu_buffer - (i) Flag indicating if PDU should be maintained.
* return_value - (o) Return value for constructor.
*
* Return Value
* None.
*
* Side Effects
* None.
*
* Caveats
* None.
*/
/*
* CAppRoster( PSessionKey session_key,
* UINT owner_message_base,
* BOOL is_top_provider,
* BOOL is_local_roster,
* BOOL maintain_pdu_buffer,
* PGCCError return_value)
*
* Public Function Description
* This is the application roster constructor used when the session key is
* made available through a PDU. It is responsible for initializing all the
* instance variables used by this class.
*
* Formal Parameters:
* session_key - (i) The session key associated with this roster.
* owner_object - (i) Pointer to the object that owns this object.
* owner_message_base - (i) Message base to add to all owner callbacks.
* is_top_provider - (i) Flag indicating if this is a top provider.
* is_local_roster - (i) Flag indicating if this is a local roster.
* maintain_pdu_buffer - (i) Flag indicating if PDU should be maintained.
* return_value - (o) Return value for constructor.
*
* Return Value
* None.
*
* Side Effects
* None.
*
* Caveats
* None.
*/
/*
* ~ApplicationRoster()
*
* Public Function Description
* This is the application roster destructor. It is responsible for
* freeing up all the internal memory used by this class.
*
* Formal Parameters:
* None.
*
* Return Value
* None.
*
* Side Effects
* None.
*
* Caveats
* None.
*/
/*
* void FlushRosterUpdateIndicationPDU (
* PSetOfApplicationInformation * indication_pdu)
*
* Public Function Description
* This routine is used to access any PDU data that might currently be
* queued inside the application roster. PDU data is queued whenever
* a request is made to the application roster that affects its
* internal information base.
*
* Formal Parameters:
* indication_pdu - (o) Pointer to the PDU buffer to fill in.
*
* Return Value
* None.
*
* Side Effects
* None.
*
* Caveats
* The PDU data returned by this routine is automatically freed the next
* time a request is made to this roster object that affects its internal
* databease.
*/
/*
* GCCError BuildFullRefreshPDU (void)
*
* Public Function Description
* This routine is responsible for generating a full application roster
* refresh PDU.
*
* Formal Parameters:
* None.
*
* Return Value
* GCC_NO_ERROR - No error occured.
* GCC_ALLOCATION_FAILURE - A resource error occured.
*
* Side Effects
* None.
*
* Caveats
* None.
*/
/*
* GCCError ProcessRosterUpdateIndicationPDU (
* PSetOfApplicationInformation indication_pdu,
* UserID sender_id);
*
* Public Function Description
* This routine is responsible for processing the decoded PDU data.
* It essentially changes the application roster object's internal database
* based on the information in the structure.
*
* Formal Parameters:
* indication_pdu - (i) This is a pointer to a structure that
* holds the decoded PDU data.
* sender_id - (i) The user ID of the node that sent the PDU.
*
* Return Value
* GCC_NO_ERROR - No error occured.
* GCC_ALLOCATION_FAILURE - A resource error occured.
*
* Side Effects
* None.
*
* Caveats
* None.
*/
/*
* UINT LockApplicationRoster()
*
* Public Function Description:
* This routine is used to "lock" the "API" data for this object. This
* results in the lock count for this object being incremented. When the
* lock count transitions from 0 to 1, a calculation is made to determine
* how much memory will be needed to hold any "API" data which will
* be referenced by, but not held in, the GCCApplicationRoster structure
* which is filled in on a call to GetAppRoster. This is the
* value returned by this routine in order to allow the calling object to
* allocate that amount of memory in preparation for the call to
* GetAppRoster.
*
* Formal Parameters:
* None.
*
* Return Value:
* The amount of memory, if any, which will be needed to hold "API" data
* which is referenced by, but not held in, the GetAppRoster
* structure provided as an output parameter to the GetAppRoster
* call.
*
* Side Effects:
* The internal lock count is incremented.
*
* Caveats:
* The internal lock count is used in conjuction with an internal "free"
* flag as a mechanism for ensuring that this object remains in existance
* until all interested parties are through with it. The object remains
* valid (unless explicity deleted) until the lock count is zero and the
* "free" flag is set through a call to FreeApplicationRoster. This allows
* other objects to lock this object and be sure that it remains valid
* until they call UnLock which will decrement the internal lock count. A
* typical usage scenerio for this object would be: An ApplicatonRoster
* object is constructed and then passed off to any interested parties
* through a function call. On return from the function call, the
* FreeApplicationRoster call is made which will set the internal "free"
* flag. If no other parties have locked the object with a Lock call,
* then the CAppRoster object will automatically delete itself when
* the FreeApplicationRoster call is made. If, however, any number of
* other parties has locked the object, it will remain in existence until
* each of them has unlocked the object through a call to UnLock.
*/
/*
* void UnLockApplicationRoster ();
*
* Public Function Description:
* This routine is used to "unlock" the "API" data for this object. This
* results in the lock count for this object being decremented. When the
* lock count transitions from 1 to 0, a check is made to determine
* whether the object has been freed through a call to
* FreeApplicationRoster. If so, the object will automatically delete
* itself.
*
* Formal Parameters:
* None.
*
* Return Value:
* None.
*
* Side Effects:
* The internal lock count is decremented.
*
* Caveats:
* It is the responsibility of any party which locks an CAppRoster
* object by calling Lock to also unlock the object with a call to UnLock.
* If the party calling UnLock did not construct the CAppRoster
* object, it should assume the object to be invalid thereafter.
*/
/*
* UINT GetAppRoster(
* PGCCApplicationRoster pGccAppRoster,
* LPSTR pData)
*
* Public Function Description:
* This routine is used to retrieve the conference roster data from
* the CAppRoster object in the "API" form of a
* GCCApplicationRoster.
*
* Formal Parameters:
* application_roster (o) The GCCApplicationRoster structure to fill in.
* memory (o) The memory used to hold any data referenced by,
* but not held in, the output structure.
*
* Return Value:
* The amount of data, if any, written into the bulk memory block provided.
*
* Side Effects:
* None.
*
* Caveats:
* None.
*/
/*
* GCCError AddRecord(
* PGCCApplicationRecord application_record,
* USHORT number_of_capabilities,
* PGCCApplicationCapability * capabilities_list,
* UserID user_id,
* EntityID entity_id)
*
* Public Function Description:
* This routine is used to add a single nodes conference record to the
* conference roster object's internal list of records.
*
* Formal Parameters:
* application_record (i) Pointer to the "API" record structure to
* add.
* number_of_capabilities (i) Number of capabilities contained in the
* passed in list.
* capabilities_list (i) List of collapsed capabilities.
* user_id (i) Node ID associated with record being added.
* entity_id (i) Entity ID associated with record being
* added.
*
* Return Value:
* GCC_NO_ERROR - No error occured.
* GCC_ALLOCATION_FAILURE - A resource error occured.
* GCC_INVALID_NON_COLLAPSED_CAP - Bad non-collapsed capabilities.
* GCC_INVALID_PARAMETER - Invalid parameter passed in.
* an invalid object key.
*
* Side Effects:
* None.
*
* Caveats:
* None.
*/
/*
* GCCError RemoveRecord( UserID node_id)
* EntityID entity_id)
*
* Public Function Description:
* This routine is used to remove a single APEs application record from the
* application roster object's internal list of records.
*
* Formal Parameters:
* node_id (i) Node ID of record to be removed.
* entity_id (i) Entity ID of record to be removed.
*
* Return Value:
* GCC_NO_ERROR - No error occured.
* GCC_INVALID_PARAMETER - Invalid parameter passed in.
*
* Side Effects:
* None.
*
* Caveats:
* None.
*/
/*
* GCCError ReplaceRecord(
* PGCCApplicationRecord application_record,
* USHORT number_of_capabilities,
* PGCCApplicationCapability * capabilities_list,
* UserID user_id,
* EntityID entity_id)
*
* Public Function Description:
* This routine is used to replace a single APEs application record in the
* application roster object's internal list of records.
*
* Formal Parameters:
* application_record (i) Conference record to use as the replacement.
* number_of_capabilities (i) Number of capabilities contained in the
* passed in list.
* capabilities_list (i) List of collapsed capabilities.
* user_id (i) Node ID of record to be replaced.
* entity_id (i) Entity ID of record to be replaced.
*
* Return Value:
* GCC_NO_ERROR - No error occured.
* GCC_ALLOCATION_FAILURE - A resource error occured.
* GCC_INVALID_PARAMETER - Invalid parameter passed in.
* GCC_INVALID_NON_COLLAPSED_CAP - Bad non-collapsed capabilities.
*
* Side Effects:
* None.
*
* Caveats:
* None.
*/
/*
* GCCError RemoveUserReference (
* UserID detached_node)
*
* Public Function Description:
* This routine removes all records associated with the specified node
* id.
*
* Formal Parameters:
* detached_node (i) Node reference to remove.
*
* Return Value:
* GCC_NO_ERROR - No error occured.
* GCC_INVALID_PARAMETER - No records associated with this node
*
* Side Effects:
* None.
*
* Caveats:
* None.
*/
/*
* USHORT GetNumberOfApplicationRecords ();
*
* Public Function Description:
* This routine returns the total number of application roster records
* contained in the objects conference roster record list.
*
* Formal Parameters:
* None.
*
* Return Value:
* The number of records in the application roster list.
*
* Side Effects:
* None.
*
* Caveats:
* None.
*/
/*
* CSessKeyContainer *GetSessionKey ()
*
* Public Function Description:
* This routine returns a pointer to the session key associated with this
* application roster.
*
* Formal Parameters:
* None.
*
* Return Value:
* The session key associated with this roster.
*
* Side Effects:
* None.
*
* Caveats:
* None.
*/
/*
* void ResetApplicationRoster ()
*
* Public Function Description:
* This routine takes care of resetting all the internal flags that are
* used to convey the current state of the application roster. Should be
* called after the roster is flushed and any roster update messages have
* been delivered (after a change to the roster occurs).
*
* Formal Parameters:
* None.
*
* Return Value:
* None.
*
* Side Effects:
* None.
*
* Caveats:
* None.
*/
/*
* DBBoolean DoesRecordExist (
* UserID node_id,
* EntityID entity_id)
*
* Public Function Description:
* This routine informs the caller if the specified application record
* exists or not.
*
* Formal Parameters:
* node_id - (i) Node ID of APE record to check.
* entity_id - (i) Entity ID of APE record to check.
*
* Return Value:
* TRUE - record exist.
* FALSE - record does not exist.
*
* Side Effects:
* None.
*
* Caveats:
* None.
*/
/*
* DBBoolean HasRosterChanged ();
*
* Public Function Description:
* This routine informs the caller if the roster has changed since the
* last time it was reset.
*
* Formal Parameters:
* None.
*
* Return Value:
* TRUE - If roster has changed
* FALSE - If roster has not changed
*
* Side Effects:
* None.
*
* Caveats:
* None.
*/