126 lines
3.5 KiB
C++
126 lines
3.5 KiB
C++
//+------------------------------------------------------------------
|
|
//
|
|
// Copyright (C) 1991-1997 Microsoft Corporation.
|
|
//
|
|
// File: nottran.cxx
|
|
//
|
|
// Contents: Transaction object for notifications
|
|
//
|
|
// Classes: CNotificationTransaction
|
|
//
|
|
// History: 24-Feb-97 SitaramR Created
|
|
//
|
|
//-------------------------------------------------------------------
|
|
|
|
#include <pch.cxx>
|
|
#pragma hdrstop
|
|
|
|
#include "notxact.hxx"
|
|
#include "resman.hxx"
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Member: CNotificationTransaction::CNotificationTransaction
|
|
//
|
|
// Synopsis: Constructor
|
|
//
|
|
// History: 24-Feb-97 SitaramR Created
|
|
//
|
|
// Notes: We initialize the array with a fairly size because we don't
|
|
// want a grow to fail due to low memory during the changelog
|
|
// transaction.
|
|
//
|
|
//----------------------------------------------------------------------------
|
|
|
|
CNotificationTransaction::CNotificationTransaction( CResManager *pResManager,
|
|
CIndexNotificationTable *pNotifTable )
|
|
: _pResManager( pResManager ),
|
|
_pNotifTable( pNotifTable ),
|
|
_aCommittedWids(256),
|
|
_aAbortedWidsToRemove(100)
|
|
{
|
|
}
|
|
|
|
|
|
//+-------------------------------------------------------------------------
|
|
//
|
|
// Method: CNotificationTransactoin::~CNotificationTransaction
|
|
//
|
|
// Synopsis: Destructor
|
|
//
|
|
// History: 24-Feb-1997 SitaramR Created
|
|
//
|
|
//--------------------------------------------------------------------------
|
|
|
|
CNotificationTransaction::~CNotificationTransaction()
|
|
{
|
|
if ( GetStatus() == CTransaction::XActCommit )
|
|
{
|
|
//
|
|
// Commit the transaction which means commit the wids in the
|
|
// comitted and remove the wids in the aborted list.
|
|
//
|
|
|
|
//
|
|
// Commit outside resman lock to prevent a deadlock with the
|
|
// lock in the notification table.
|
|
//
|
|
if ( _pNotifTable )
|
|
_pNotifTable->CommitWids( _aCommittedWids );
|
|
|
|
CLock lock( _pResManager->GetMutex() );
|
|
for ( unsigned i=0; i<_aAbortedWidsToRemove.Count(); i++ )
|
|
{
|
|
_pResManager->LokRemoveAbortedWid( _aAbortedWidsToRemove.Get(i)._wid,
|
|
_aAbortedWidsToRemove.Get(i)._usn );
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
//+-------------------------------------------------------------------------
|
|
//
|
|
// Method: CNotificationTransaction::AddCommittedWid
|
|
//
|
|
// Synopsis: Adds a wid to the commited list
|
|
//
|
|
// Arguments: [wid] -- WORKID
|
|
//
|
|
// History: 24-Feb-1997 SitaramR Created
|
|
//
|
|
//--------------------------------------------------------------------------
|
|
|
|
void CNotificationTransaction::AddCommittedWid( WORKID wid )
|
|
{
|
|
Win4Assert( wid != widInvalid );
|
|
|
|
_aCommittedWids.Add( wid, _aCommittedWids.Count() );
|
|
}
|
|
|
|
|
|
//+-------------------------------------------------------------------------
|
|
//
|
|
// Method: CNotificationTransaction::RemoveAbortedWid
|
|
//
|
|
// Synopsis: Adds a wid to the aborted-wids-to-remove list
|
|
//
|
|
// Arguments: [wid] -- WORKID
|
|
// [usn] -- USN
|
|
//
|
|
// History: 24-Feb-1997 SitaramR Created
|
|
//
|
|
//--------------------------------------------------------------------------
|
|
|
|
void CNotificationTransaction::RemoveAbortedWid( WORKID wid, USN usn )
|
|
{
|
|
Win4Assert( wid != widInvalid );
|
|
Win4Assert( usn > 0 );
|
|
|
|
CAbortedWidEntry widEntry( wid, usn );
|
|
|
|
_aAbortedWidsToRemove.Add( widEntry, _aAbortedWidsToRemove.Count() );
|
|
}
|
|
|
|
|
|
|