811 lines
23 KiB
C++
811 lines
23 KiB
C++
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//+------------------------------------------------------------------
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//
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// Copyright (C) 1991-1997 Microsoft Corporation.
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//
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// File: idxnotif.cxx
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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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#include <pch.cxx>
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#pragma hdrstop
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#include "idxnotif.hxx"
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#include "idxentry.hxx"
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#include "notifdoc.hxx"
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#include "cimanger.hxx"
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//+---------------------------------------------------------------------------
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//
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// Member: CIndexNotificationTable::CIndexNotificationTable
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//
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// Synopsis: Constructor
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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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CIndexNotificationTable::CIndexNotificationTable( CCiManager * pCiManager,
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XInterface<ICiCDocStore> & xDocStore )
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: _pCiManager( pCiManager ),
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_xDocStore( xDocStore.Acquire() ),
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_fInitialized( FALSE ),
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_fShutdown( FALSE ),
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_usnCtr( 1 ),
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_cRefs( 1 )
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{
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for ( ULONG i=0; i<NOTIF_HASH_TABLE_SIZE; i++)
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_aHashTable[i] = 0;
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CIndexNotificationTable::~CIndexNotificationTable
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//
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// Synopsis: Destructor
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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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CIndexNotificationTable::~CIndexNotificationTable()
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{
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Shutdown();
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}
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//+-------------------------------------------------------------------------
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//
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// Method: CIndexNotificationTable::AddRef
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//
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// Synopsis: Increments refcount
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//
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// History: 24-Feb-1997 SitaramR Created
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//
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//--------------------------------------------------------------------------
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ULONG STDMETHODCALLTYPE CIndexNotificationTable::AddRef()
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{
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return InterlockedIncrement( (long *) &_cRefs );
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}
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//+-------------------------------------------------------------------------
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//
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// Method: CIndexNotificationTable::Release
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//
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// Synopsis: Decrement refcount. Delete if necessary.
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//
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// History: 24-Feb-1997 SitaramR Created
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//
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//--------------------------------------------------------------------------
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ULONG STDMETHODCALLTYPE CIndexNotificationTable::Release()
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{
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Win4Assert( _cRefs > 0 );
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ULONG uTmp = InterlockedDecrement( (long *) &_cRefs );
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if ( 0 == uTmp )
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delete this;
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return uTmp;
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}
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//+-------------------------------------------------------------------------
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//
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// Method: CIndexNotificationTable::QueryInterface
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//
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// Synopsis: Rebind to other interface
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//
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// Arguments: [riid] -- IID of new interface
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// [ppvObject] -- New interface * returned here
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//
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// Returns: S_OK if bind succeeded, E_NOINTERFACE if bind failed
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//
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// History: 24-Feb-1997 SitaramR Created
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//
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//--------------------------------------------------------------------------
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SCODE STDMETHODCALLTYPE CIndexNotificationTable::QueryInterface( REFIID riid,
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void ** ppvObject)
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{
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Win4Assert( 0 != ppvObject );
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if ( riid == IID_ICiIndexNotification )
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*ppvObject = (void *)(ICiIndexNotification *) this;
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else if ( riid == IID_ICiCFilterClient )
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*ppvObject = (void *)(ICiCFilterClient *) this;
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else if ( riid == IID_ICiCAdviseStatus )
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return _xDocStore->QueryInterface( riid, ppvObject );
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else if ( riid == IID_ICiCLangRes )
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return _xDocStore->QueryInterface( riid, ppvObject );
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else if ( riid == IID_IUnknown )
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*ppvObject = (void *)(IUnknown *)(ICiIndexNotification *) this;
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else
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{
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*ppvObject = 0;
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return E_NOINTERFACE;
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}
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AddRef();
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return S_OK;
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}
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//+-------------------------------------------------------------------------
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//
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// Method: CIndexNotificationTable::AddNotification
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//
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// Synopsis: New document notification
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//
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// Arguments: [wid] -- Workid of document
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// [pIndexNotifStatus] -- Status of notifcation returned here
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// [ppIndexNotifEntry] -- Buffer to document properties
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//
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// History: 24-Feb-1997 SitaramR Created
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//
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//--------------------------------------------------------------------------
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SCODE STDMETHODCALLTYPE CIndexNotificationTable::AddNotification(
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WORKID wid,
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ICiCIndexNotificationStatus *pIndexNotifStatus,
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ICiIndexNotificationEntry **ppIndexNotifEntry )
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{
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Win4Assert( wid != widInvalid );
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Win4Assert( pIndexNotifStatus != 0 );
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if ( _fShutdown )
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return CI_E_SHUTDOWN;
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SCODE sc = S_OK;
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TRY
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{
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pIndexNotifStatus->AddRef();
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XInterface<ICiCIndexNotificationStatus> xNotifStatus( pIndexNotifStatus );
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CIndexNotificationEntry *pIndexNotifEntry;
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BOOL fFound;
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{
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CLock lock(_mutex);
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fFound = LokLookup( wid, pIndexNotifEntry );
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if ( fFound )
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sc = CI_E_DUPLICATE_NOTIFICATION;
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}
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if ( !fFound )
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{
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AddRef();
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XInterface<CIndexNotificationTable> xNotifTable(this);
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CheckForUsnOverflow();
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USN usn = InterlockedIncrement( &_usnCtr );
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pIndexNotifEntry = new CIndexNotificationEntry( wid,
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CI_UPDATE_ADD,
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xNotifTable,
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xNotifStatus,
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_pCiManager,
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usn );
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XInterface<CIndexNotificationEntry> xIndexNotifEntry( pIndexNotifEntry );
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CHashTableEntry *pHashEntry = new CHashTableEntry( wid, pIndexNotifEntry );
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{
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CLock lock(_mutex);
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LokNoFailAdd( pHashEntry );
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if ( _fShutdown )
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pIndexNotifEntry->Shutdown();
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}
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xIndexNotifEntry.Acquire(); // Passed ownership to hash table
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sc = pIndexNotifEntry->QueryInterface( IID_ICiIndexNotificationEntry,
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(void **)ppIndexNotifEntry );
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//
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// No release on pIndexNotifEntry because both the hash table the client
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// own pIndexNotifEntry
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//
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Win4Assert( SUCCEEDED( sc ) );
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}
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}
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CATCH( CException, e )
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{
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sc = e.GetErrorCode();
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ciDebugOut(( DEB_ERROR,
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"CIndexNotificationTable::AddNotification - Exception caught 0x%x\n",
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sc ));
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}
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END_CATCH;
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return sc;
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}
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//+-------------------------------------------------------------------------
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//
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// Method: CIndexNotificationTable::ModifyNotification
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//
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// Synopsis: Change document notification
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//
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// Arguments: [wid] -- Workid of document
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// [pIndexNotifStatus] -- Status of notifcation returned here
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// [ppIndexNotifEntry] -- Buffer to document properties
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//
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// History: 24-Feb-1997 SitaramR Created
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//
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//--------------------------------------------------------------------------
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SCODE STDMETHODCALLTYPE CIndexNotificationTable::ModifyNotification(
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WORKID wid,
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ICiCIndexNotificationStatus *pIndexNotifStatus,
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ICiIndexNotificationEntry **ppIndexNotifEntry )
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{
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//
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// There is no difference between an add and a modify in the CI engine
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//
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SCODE sc = AddNotification( wid, pIndexNotifStatus, ppIndexNotifEntry );
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return sc;
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}
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//+-------------------------------------------------------------------------
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//
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// Method: CIndexNotificationTable::DeleteNotification
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//
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// Synopsis: Delete document notification
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//
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// Arguments: [wid] -- Workid of document
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// [pIndexNotifStatus] -- Status of notifcation returned here
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//
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// History: 24-Feb-1997 SitaramR Created
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//
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//--------------------------------------------------------------------------
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SCODE STDMETHODCALLTYPE CIndexNotificationTable::DeleteNotification(
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WORKID wid,
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ICiCIndexNotificationStatus *pIndexNotifStatus )
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{
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Win4Assert( wid != widInvalid );
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Win4Assert( pIndexNotifStatus != 0 );
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if ( _fShutdown )
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return CI_E_SHUTDOWN;
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SCODE sc = S_OK;
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TRY
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{
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pIndexNotifStatus->AddRef();
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XInterface<ICiCIndexNotificationStatus> xNotifStatus( pIndexNotifStatus );
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CIndexNotificationEntry *pIndexNotifEntry;
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BOOL fFound;
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{
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CLock lock(_mutex);
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fFound = LokLookup( wid, pIndexNotifEntry );
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if ( fFound )
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sc = CI_E_DUPLICATE_NOTIFICATION;
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}
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if ( !fFound )
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{
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CheckForUsnOverflow();
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USN usn = InterlockedIncrement( &_usnCtr );
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AddRef();
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XInterface<CIndexNotificationTable> xNotifTable(this);
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pIndexNotifEntry = new CIndexNotificationEntry( wid,
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CI_UPDATE_DELETE,
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xNotifTable,
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xNotifStatus,
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_pCiManager,
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usn );
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XInterface<CIndexNotificationEntry> xIndexNotifEntry( pIndexNotifEntry );
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CHashTableEntry *pHashEntry = new CHashTableEntry( wid, pIndexNotifEntry );
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XPtr<CHashTableEntry> xHashEntry( pHashEntry );
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CDocumentUpdateInfo info( wid, CI_VOLID_USN_NOT_ENABLED, usn, TRUE );
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sc = _pCiManager->UpdDocumentNoThrow( &info );
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if ( FAILED( sc ) )
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{
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SCODE scode = pIndexNotifStatus->Abort();
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//
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// We don't have retry logic coded in case of failure,
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// hence check that it succeeded
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//
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Win4Assert( SUCCEEDED( scode ) );
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}
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else
|
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{
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CLock lock(_mutex);
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LokNoFailAdd( pHashEntry );
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if ( _fShutdown )
|
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pIndexNotifEntry->Shutdown();
|
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|
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xIndexNotifEntry.Acquire(); // Passed ownership to hash table
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xHashEntry.Acquire();
|
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}
|
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}
|
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|
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}
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CATCH( CException, e )
|
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{
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sc = e.GetErrorCode();
|
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|
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ciDebugOut(( DEB_ERROR,
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"CIndexNotificationTable::DeleteNotification - Exception caught 0x%x\n",
|
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|
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sc ));
|
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|
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}
|
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END_CATCH;
|
||
|
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|
||
|
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return sc;
|
||
|
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}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
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//+-------------------------------------------------------------------------
|
||
|
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//
|
||
|
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// Method: CIndexNotificationTable::GetConfigInfo
|
||
|
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//
|
||
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// Synopsis: Return configuration info
|
||
|
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//
|
||
|
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// Arguments: [pConfigInfo] - output data structure
|
||
|
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//
|
||
|
|
// History: 24-Feb-1997 SitaramR Created
|
||
|
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//
|
||
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//--------------------------------------------------------------------------
|
||
|
|
|
||
|
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SCODE STDMETHODCALLTYPE CIndexNotificationTable::GetConfigInfo(
|
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|
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CI_CLIENT_FILTER_CONFIG_INFO *pConfigInfo )
|
||
|
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{
|
||
|
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//
|
||
|
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// Security generation must be specified as part of configuration
|
||
|
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// information to the push model.
|
||
|
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//
|
||
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|
||
|
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pConfigInfo->fSupportsOpLocks = FALSE;
|
||
|
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pConfigInfo->fSupportsSecurity = FALSE;
|
||
|
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|
||
|
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return S_OK;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//+---------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Member: CIndexNotificationTable::Init
|
||
|
|
//
|
||
|
|
// Synopsis: Initialize storage filtering
|
||
|
|
//
|
||
|
|
// Arguments: [pbData] - input data, ignored
|
||
|
|
// [cbData] - length of data, ignored
|
||
|
|
// [pICiAdminParams] - interface for retrieving configuration
|
||
|
|
//
|
||
|
|
// History: 24-Feb-1997 SitaramR Created
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
SCODE STDMETHODCALLTYPE CIndexNotificationTable::Init( const BYTE * pbData,
|
||
|
|
ULONG cbData,
|
||
|
|
ICiAdminParams *pICiAdminParams )
|
||
|
|
{
|
||
|
|
_fInitialized = TRUE;
|
||
|
|
|
||
|
|
return S_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//+---------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Member: CIndexNotificationTable::GetOpenedDoc
|
||
|
|
//
|
||
|
|
// Synopsis: Return a new OpenedDoc instance
|
||
|
|
//
|
||
|
|
// Arguments: [ppICiCOpenedDoc] - Interface pointer returned here
|
||
|
|
//
|
||
|
|
// History: 24-Feb-1997 SitaramR Created
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
SCODE STDMETHODCALLTYPE CIndexNotificationTable::GetOpenedDoc( ICiCOpenedDoc ** ppICiCOpenedDoc )
|
||
|
|
{
|
||
|
|
if ( !_fInitialized )
|
||
|
|
{
|
||
|
|
ppICiCOpenedDoc = 0;
|
||
|
|
return CI_E_NOT_INITIALIZED;
|
||
|
|
}
|
||
|
|
|
||
|
|
SCODE sc = S_OK;
|
||
|
|
|
||
|
|
TRY
|
||
|
|
{
|
||
|
|
AddRef();
|
||
|
|
XInterface<CIndexNotificationTable> xNotifTable( this );
|
||
|
|
|
||
|
|
CINOpenedDoc *pOpenedDoc = new CINOpenedDoc( xNotifTable );
|
||
|
|
sc = pOpenedDoc->QueryInterface( IID_ICiCOpenedDoc, (void **)ppICiCOpenedDoc );
|
||
|
|
|
||
|
|
pOpenedDoc->Release(); // QI does an AddRef
|
||
|
|
}
|
||
|
|
CATCH( CException, e )
|
||
|
|
{
|
||
|
|
sc = e.GetErrorCode();
|
||
|
|
|
||
|
|
ciDebugOut(( DEB_ERROR,
|
||
|
|
"CIndexNotificationTable::GetOpenedDoc - Exception caught 0x%x\n",
|
||
|
|
sc ));
|
||
|
|
}
|
||
|
|
END_CATCH;
|
||
|
|
|
||
|
|
return sc;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
//+---------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Member: CIndexNotificationTable::Hash
|
||
|
|
//
|
||
|
|
// Synopsis: Implements the hash function
|
||
|
|
//
|
||
|
|
// Arguments: [wid] - Workid to hash
|
||
|
|
//
|
||
|
|
// History: 24-Feb-1997 SitaramR Created
|
||
|
|
//
|
||
|
|
// Returns: Position of chained list in hash table
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
ULONG CIndexNotificationTable::Hash( WORKID wid )
|
||
|
|
{
|
||
|
|
return wid % NOTIF_HASH_TABLE_SIZE;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
//+---------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Member: CIndexNotificationTable::LokLookup
|
||
|
|
//
|
||
|
|
// Synopsis: Return the mapping corresponding to given wid
|
||
|
|
//
|
||
|
|
// Arguments: [wid] -- Workid to hash
|
||
|
|
// [pIndexNotifEntry] -- Index entry returned here
|
||
|
|
//
|
||
|
|
// History: 24-Feb-1997 SitaramR Created
|
||
|
|
//
|
||
|
|
// Returns: True if a mapping was found in the hash table
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
BOOL CIndexNotificationTable::LokLookup( WORKID wid,
|
||
|
|
CIndexNotificationEntry * &pIndexNotifEntry )
|
||
|
|
{
|
||
|
|
unsigned uHashValue = Hash( wid );
|
||
|
|
|
||
|
|
Win4Assert( uHashValue < NOTIF_HASH_TABLE_SIZE );
|
||
|
|
|
||
|
|
for ( CHashTableEntry *pHashEntry = _aHashTable[uHashValue];
|
||
|
|
pHashEntry != 0;
|
||
|
|
pHashEntry = pHashEntry->GetNextHashEntry() )
|
||
|
|
{
|
||
|
|
if ( pHashEntry->GetWorkId() == wid )
|
||
|
|
{
|
||
|
|
pIndexNotifEntry = pHashEntry->GetNotifEntry();
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
//+---------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Member: CIndexNotificationTable::LokNoFailAdd
|
||
|
|
//
|
||
|
|
// Synopsis: Add a wid->pIndexEntry mapping
|
||
|
|
//
|
||
|
|
// Arguments: [pHashEntry] -- Hash entry
|
||
|
|
//
|
||
|
|
// History: 24-Feb-1997 SitaramR Created
|
||
|
|
//
|
||
|
|
// Notes: LokNoFailAdd should not fail due to memory allocations
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
void CIndexNotificationTable::LokNoFailAdd( CHashTableEntry *pHashEntry )
|
||
|
|
{
|
||
|
|
#if DBG == 1
|
||
|
|
//
|
||
|
|
// Check for duplicate entries
|
||
|
|
//
|
||
|
|
CIndexNotificationEntry *pExistingData;
|
||
|
|
|
||
|
|
BOOL fFound = LokLookup( pHashEntry->GetWorkId(), pExistingData );
|
||
|
|
Win4Assert( !fFound );
|
||
|
|
#endif
|
||
|
|
|
||
|
|
unsigned uHashValue = Hash( pHashEntry->GetWorkId() );
|
||
|
|
pHashEntry->SetNextHashEntry( _aHashTable[uHashValue] );
|
||
|
|
_aHashTable[uHashValue] = pHashEntry;
|
||
|
|
|
||
|
|
ciDebugOut(( DEB_ITRACE, "Adding Workid %d at %d hash entry\n",
|
||
|
|
pHashEntry->GetWorkId(),
|
||
|
|
uHashValue ));
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
//+---------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Member: CIndexNotificationTable::LokRemove
|
||
|
|
//
|
||
|
|
// Synopsis: Return the mapping corresponding to given wid
|
||
|
|
//
|
||
|
|
// Arguments: [wid] -- Workid to hash
|
||
|
|
// [xIndexNotifEntry] -- Index entry returned here
|
||
|
|
//
|
||
|
|
// History: 24-Feb-1997 SitaramR Created
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
void CIndexNotificationTable::LokRemove( WORKID wid,
|
||
|
|
XInterface<CIndexNotificationEntry> & xIndexNotifEntry )
|
||
|
|
{
|
||
|
|
unsigned uHashValue = Hash( wid );
|
||
|
|
|
||
|
|
Win4Assert( uHashValue < NOTIF_HASH_TABLE_SIZE );
|
||
|
|
|
||
|
|
CHashTableEntry *pHashEntry = _aHashTable[uHashValue];
|
||
|
|
|
||
|
|
if ( pHashEntry == 0 )
|
||
|
|
{
|
||
|
|
Win4Assert( !"Wid not found in hash table" );
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( pHashEntry->GetWorkId() == wid )
|
||
|
|
{
|
||
|
|
//
|
||
|
|
// Wid is the first entry in chain
|
||
|
|
//
|
||
|
|
_aHashTable[uHashValue] = pHashEntry->GetNextHashEntry();
|
||
|
|
xIndexNotifEntry.Set( pHashEntry->GetNotifEntry() );
|
||
|
|
|
||
|
|
ciDebugOut(( DEB_ITRACE, "Removing Workid %d:%d at %d hash entry\n",
|
||
|
|
pHashEntry->GetWorkId(), wid,
|
||
|
|
uHashValue ));
|
||
|
|
|
||
|
|
delete pHashEntry;
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
CHashTableEntry *pHashEntryPrev = pHashEntry;
|
||
|
|
pHashEntry = pHashEntry->GetNextHashEntry();
|
||
|
|
while ( pHashEntry != 0 )
|
||
|
|
{
|
||
|
|
if ( pHashEntry->GetWorkId() == wid )
|
||
|
|
{
|
||
|
|
pHashEntryPrev->SetNextHashEntry( pHashEntry->GetNextHashEntry() );
|
||
|
|
xIndexNotifEntry.Set( pHashEntry->GetNotifEntry() );
|
||
|
|
|
||
|
|
ciDebugOut(( DEB_ITRACE, "Removing Workid %d:%d at %d hash entry\n",
|
||
|
|
pHashEntry->GetWorkId(), wid,
|
||
|
|
uHashValue ));
|
||
|
|
|
||
|
|
delete pHashEntry;
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
pHashEntryPrev = pHashEntry;
|
||
|
|
pHashEntry = pHashEntry->GetNextHashEntry();
|
||
|
|
}
|
||
|
|
|
||
|
|
Win4Assert( !"Wid not found in hash table" );
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
//+---------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Member: CIndexNotificationTable::Remove
|
||
|
|
//
|
||
|
|
// Synopsis: Return the mapping corresponding to given wid
|
||
|
|
//
|
||
|
|
// Arguments: [wid] -- Workid to hash
|
||
|
|
// [xIndexNotifEntry] -- Index entry returned here
|
||
|
|
//
|
||
|
|
// History: 24-Feb-1997 SitaramR Created
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
void CIndexNotificationTable::Remove( WORKID wid,
|
||
|
|
XInterface<CIndexNotificationEntry> & xIndexNotifEntry )
|
||
|
|
{
|
||
|
|
CLock lock(_mutex);
|
||
|
|
|
||
|
|
LokRemove( wid, xIndexNotifEntry );
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
//+---------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Member: CIndexNotificationTable::Lookup
|
||
|
|
//
|
||
|
|
// Synopsis: Lookup the mapping corresponding to given wid
|
||
|
|
//
|
||
|
|
// Arguments: [wid] -- Workid to hash
|
||
|
|
// [pIndexNotifEntry] -- Index entry returned here
|
||
|
|
//
|
||
|
|
// History: 24-Feb-1997 SitaramR Created
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
BOOL CIndexNotificationTable::Lookup( WORKID wid,
|
||
|
|
CIndexNotificationEntry * &pIndexNotifEntry )
|
||
|
|
{
|
||
|
|
CLock lock(_mutex);
|
||
|
|
|
||
|
|
return LokLookup( wid, pIndexNotifEntry );
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//+---------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Member: CIndexNotificationTable::CommitWids
|
||
|
|
//
|
||
|
|
// Synopsis: Commits the notification status transactions on the given list
|
||
|
|
// of wids
|
||
|
|
//
|
||
|
|
// Arguments: [aWidsInPersIndex] -- Array of wids to be committed
|
||
|
|
//
|
||
|
|
// History: 24-Feb-1997 SitaramR Created
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
void CIndexNotificationTable::CommitWids( CDynArrayInPlace<WORKID> & aWidsInPersIndex )
|
||
|
|
{
|
||
|
|
|
||
|
|
for ( ULONG i=0; i<aWidsInPersIndex.Count(); i++)
|
||
|
|
{
|
||
|
|
WORKID wid = aWidsInPersIndex.Get( i );
|
||
|
|
XInterface<CIndexNotificationEntry> xIndexNotifEntry;
|
||
|
|
|
||
|
|
{
|
||
|
|
CLock lock(_mutex);
|
||
|
|
LokRemove( wid, xIndexNotifEntry );
|
||
|
|
}
|
||
|
|
|
||
|
|
Win4Assert( !xIndexNotifEntry.IsNull() );
|
||
|
|
|
||
|
|
xIndexNotifEntry->Commit(); // Commit client transaction
|
||
|
|
|
||
|
|
//
|
||
|
|
// xIndexNotifEntry is released when it goes out of scope
|
||
|
|
//
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
//+---------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Member: CIndexNotificationTable::AbortWid
|
||
|
|
//
|
||
|
|
// Synopsis: Commits the notification status transactions on the given list
|
||
|
|
// of wids
|
||
|
|
//
|
||
|
|
// Arguments: [cWidsInPersIndex] -- Count of wids in array
|
||
|
|
// [aWidsInPersIndex] -- Array of wids to be committed
|
||
|
|
//
|
||
|
|
// History: 24-Feb-1997 SitaramR Created
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
void CIndexNotificationTable::AbortWid( WORKID wid, USN usn )
|
||
|
|
{
|
||
|
|
XInterface<CIndexNotificationEntry> xIndexNotifEntry;
|
||
|
|
|
||
|
|
{
|
||
|
|
CLock lock(_mutex);
|
||
|
|
LokRemove( wid, xIndexNotifEntry );
|
||
|
|
}
|
||
|
|
|
||
|
|
Win4Assert( !xIndexNotifEntry.IsNull() );
|
||
|
|
Win4Assert( xIndexNotifEntry->Usn() == usn );
|
||
|
|
|
||
|
|
xIndexNotifEntry->Abort(); // Abort client transaction
|
||
|
|
|
||
|
|
//
|
||
|
|
// xIndexNotifEntry is released when it goes out of scope
|
||
|
|
//
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
//+---------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Member: CIndexNotificationTable::CheckForUsnOverflow
|
||
|
|
//
|
||
|
|
// Synopsis: Handles overflows of usn by resetting the counter to 1
|
||
|
|
//
|
||
|
|
// History: 24-Feb-1997 SitaramR Created
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
void CIndexNotificationTable::CheckForUsnOverflow()
|
||
|
|
{
|
||
|
|
if ( _usnCtr == LONG_MAX )
|
||
|
|
{
|
||
|
|
//
|
||
|
|
// Overflow should be rare, if ever
|
||
|
|
//
|
||
|
|
Win4Assert( !"Usn counter overflow, resetting" );
|
||
|
|
|
||
|
|
InterlockedExchange( &_usnCtr, 1 );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
//+---------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Member: CIndexNotificationTable::Shutdown
|
||
|
|
//
|
||
|
|
// Synopsis: Shutdown processing
|
||
|
|
//
|
||
|
|
// History: 24-Feb-97 SitaramR Created
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
void CIndexNotificationTable::Shutdown()
|
||
|
|
{
|
||
|
|
//
|
||
|
|
// Shutdown all entries in hash table
|
||
|
|
//
|
||
|
|
CLock lock( _mutex );
|
||
|
|
|
||
|
|
_fShutdown = TRUE;
|
||
|
|
|
||
|
|
for ( ULONG i=0; i<NOTIF_HASH_TABLE_SIZE; i++ )
|
||
|
|
{
|
||
|
|
CHashTableEntry *pEntry = _aHashTable[i];
|
||
|
|
_aHashTable[i] = 0;
|
||
|
|
|
||
|
|
while ( pEntry != 0 )
|
||
|
|
{
|
||
|
|
CHashTableEntry *pEntryPrev = pEntry;
|
||
|
|
pEntry = pEntry->GetNextHashEntry();
|
||
|
|
|
||
|
|
CIndexNotificationEntry *pIndexNotifEntry = pEntryPrev->GetNotifEntry();
|
||
|
|
pIndexNotifEntry->Shutdown();
|
||
|
|
pIndexNotifEntry->Release();
|
||
|
|
|
||
|
|
delete pEntryPrev;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|