126 lines
3.5 KiB
C++
126 lines
3.5 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: nottran.cxx
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//
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// Contents: Transaction object for notifications
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//
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// Classes: CNotificationTransaction
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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 "notxact.hxx"
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#include "resman.hxx"
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//+---------------------------------------------------------------------------
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//
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// Member: CNotificationTransaction::CNotificationTransaction
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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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// Notes: We initialize the array with a fairly size because we don't
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// want a grow to fail due to low memory during the changelog
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// transaction.
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//
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//----------------------------------------------------------------------------
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CNotificationTransaction::CNotificationTransaction( CResManager *pResManager,
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CIndexNotificationTable *pNotifTable )
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: _pResManager( pResManager ),
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_pNotifTable( pNotifTable ),
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_aCommittedWids(256),
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_aAbortedWidsToRemove(100)
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{
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}
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//+-------------------------------------------------------------------------
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//
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// Method: CNotificationTransactoin::~CNotificationTransaction
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//
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// Synopsis: Destructor
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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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CNotificationTransaction::~CNotificationTransaction()
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{
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if ( GetStatus() == CTransaction::XActCommit )
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{
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//
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// Commit the transaction which means commit the wids in the
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// comitted and remove the wids in the aborted list.
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//
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//
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// Commit outside resman lock to prevent a deadlock with the
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// lock in the notification table.
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//
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if ( _pNotifTable )
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_pNotifTable->CommitWids( _aCommittedWids );
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CLock lock( _pResManager->GetMutex() );
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for ( unsigned i=0; i<_aAbortedWidsToRemove.Count(); i++ )
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{
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_pResManager->LokRemoveAbortedWid( _aAbortedWidsToRemove.Get(i)._wid,
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_aAbortedWidsToRemove.Get(i)._usn );
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}
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}
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}
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//+-------------------------------------------------------------------------
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//
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// Method: CNotificationTransaction::AddCommittedWid
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//
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// Synopsis: Adds a wid to the commited list
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//
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// Arguments: [wid] -- WORKID
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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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void CNotificationTransaction::AddCommittedWid( WORKID wid )
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{
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Win4Assert( wid != widInvalid );
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_aCommittedWids.Add( wid, _aCommittedWids.Count() );
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}
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//+-------------------------------------------------------------------------
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//
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// Method: CNotificationTransaction::RemoveAbortedWid
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//
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// Synopsis: Adds a wid to the aborted-wids-to-remove list
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//
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// Arguments: [wid] -- WORKID
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// [usn] -- USN
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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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void CNotificationTransaction::RemoveAbortedWid( WORKID wid, USN usn )
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{
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Win4Assert( wid != widInvalid );
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Win4Assert( usn > 0 );
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CAbortedWidEntry widEntry( wid, usn );
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_aAbortedWidsToRemove.Add( widEntry, _aAbortedWidsToRemove.Count() );
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}
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