168 lines
5.1 KiB
C++
168 lines
5.1 KiB
C++
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//+------------------------------------------------------------------
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//
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// Copyright (C) Microsoft Corporation, 1991 - 1997
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//
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// File: idxnotif.hxx
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//
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// Contents: Document notification interfaces
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//
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// Classes: CIndexNotificationTable
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//
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// History: 24-Feb-97 SitaramR Created
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//
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//-------------------------------------------------------------------
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#pragma once
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#include <ciintf.h>
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const NOTIF_HASH_TABLE_SIZE = 97; // Size of hash table for notifications
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class CIndexNotificationEntry;
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class CCiManager;
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//+---------------------------------------------------------------------------
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//
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// Class: CHashTableEntry
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//
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// Purpose: A hash table entry that maps workids to CIndexNotificationEntries
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//
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// History: 24-Feb-97 SitaramR Created
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//
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//----------------------------------------------------------------------------
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class CHashTableEntry
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{
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public:
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CHashTableEntry( WORKID wid,
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CIndexNotificationEntry *pIndexNotifEntry )
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: _wid( wid ),
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_pIndexNotifEntry( pIndexNotifEntry ),
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_pHashEntryNext( 0 )
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{
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}
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WORKID GetWorkId() { return _wid; }
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CIndexNotificationEntry *GetNotifEntry() { return _pIndexNotifEntry; }
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CHashTableEntry * GetNextHashEntry() { return _pHashEntryNext; }
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void SetNextHashEntry(CHashTableEntry *pEntry) { _pHashEntryNext = pEntry; }
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private:
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WORKID _wid;
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CIndexNotificationEntry * _pIndexNotifEntry;
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CHashTableEntry * _pHashEntryNext; // Link to next entry
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};
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//+---------------------------------------------------------------------------
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//
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// Class: CIndexNotificationTable
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//
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// Purpose: Hash table for document notifications
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//
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// History: 24-Feb-97 SitaramR Created
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//
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//----------------------------------------------------------------------------
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class CIndexNotificationTable : INHERIT_VIRTUAL_UNWIND,
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public ICiIndexNotification,
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public ICiCFilterClient
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{
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INLINE_UNWIND( CIndexNotificationTable );
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public:
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//
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// From IUnknown
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//
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virtual SCODE STDMETHODCALLTYPE QueryInterface( REFIID riid, void **ppvObject );
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virtual ULONG STDMETHODCALLTYPE AddRef();
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virtual ULONG STDMETHODCALLTYPE Release();
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//
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// From ICiIndexNotification
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//
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virtual SCODE STDMETHODCALLTYPE AddNotification(
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WORKID wid,
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ICiCIndexNotificationStatus *pIndexNotifStatus,
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ICiIndexNotificationEntry **ppIndexNotifEntry );
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virtual SCODE STDMETHODCALLTYPE ModifyNotification(
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WORKID wid,
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ICiCIndexNotificationStatus *pIndexNotifStatus,
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ICiIndexNotificationEntry **ppIndexNotifEntry );
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virtual SCODE STDMETHODCALLTYPE DeleteNotification(
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WORKID wid,
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ICiCIndexNotificationStatus *pIndexNotifStatus );
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//
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// From ICiCFilterClient
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//
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virtual SCODE STDMETHODCALLTYPE Init( BYTE const * pbData,
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ULONG cbData,
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ICiAdminParams * pICiAdminParams );
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virtual SCODE STDMETHODCALLTYPE GetConfigInfo( CI_CLIENT_FILTER_CONFIG_INFO * pConfigInfo );
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virtual SCODE STDMETHODCALLTYPE GetOpenedDoc( ICiCOpenedDoc ** ppICiCOpenedDoc );
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//
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// Local methods
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//
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CIndexNotificationTable( CCiManager * pCiManager,
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XInterface<ICiCDocStore> & xDocStore );
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BOOL Lookup( WORKID wid,
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CIndexNotificationEntry * & IndexNotifEntry );
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void Remove( WORKID wid,
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XInterface<CIndexNotificationEntry> & xIndexNotifEntry );
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void CommitWids( CDynArrayInPlace<WORKID> & aWidsInPersIndex );
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void AbortWid( WORKID wid, USN usn );
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void Shutdown();
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private :
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virtual ~CIndexNotificationTable( );
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void CheckForUsnOverflow();
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ULONG Hash( WORKID wid );
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BOOL LokLookup( WORKID wid,
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CIndexNotificationEntry * & pIndexNotifEntry );
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void LokNoFailAdd( CHashTableEntry *pHashTableEntry );
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void LokRemove( WORKID wid,
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XInterface<CIndexNotificationEntry> & xIndexNotifEntry );
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CCiManager * _pCiManager;
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XInterface<ICiCDocStore> _xDocStore;
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BOOL _fInitialized; // Has Init() been called ?
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BOOL _fShutdown; // Are we shutting down ?
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LONG _usnCtr; // Usn generator
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ULONG _cRefs; // Ref count
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CMutexSem _mutex; // Adds and removes can be concurrent
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CHashTableEntry * _aHashTable[NOTIF_HASH_TABLE_SIZE]; // Buffer of notifications
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};
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