diff -r 000000000000 -r 307788aac0a8 realtimenetprots/sipfw/SIP/ServerResolver/src/CRequestQueue.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/realtimenetprots/sipfw/SIP/ServerResolver/src/CRequestQueue.cpp	Tue Feb 02 01:03:15 2010 +0200
@@ -0,0 +1,133 @@
+// Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+// Name          : CRequestQueue.cpp
+// Part of       : ServerResolver
+// Version       : SIP/4.0 
+//
+
+
+
+#include "CRequestQueue.h"
+#include "CServerQuery.h"
+#include "MSIPServerResolverObserver.h"
+
+// ----------------------------------------------------------------------------
+// CRequestQueue::CRequestQueue
+// ----------------------------------------------------------------------------
+//
+CRequestQueue::CRequestQueue(): iList( CServerQuery::iOffset ),
+							    iListIter( iList )
+	{}
+
+// ----------------------------------------------------------------------------
+// CRequestQueue::NewL
+// ----------------------------------------------------------------------------
+//
+CRequestQueue* CRequestQueue::NewL()
+	{
+	CRequestQueue* self = NewLC();
+	CleanupStack::Pop( self );
+	return self;
+	}
+
+// ----------------------------------------------------------------------------
+// CRequestQueue::NewLC
+// ----------------------------------------------------------------------------
+//
+CRequestQueue* CRequestQueue::NewLC()
+	{
+	CRequestQueue* self = new ( ELeave ) CRequestQueue();
+	CleanupStack::PushL( self );
+	return self;	
+	}
+
+// ----------------------------------------------------------------------------
+// CRequestQueue::~CRequestQueue
+// ----------------------------------------------------------------------------
+//
+CRequestQueue::~CRequestQueue()
+	{
+	CServerQuery* query;
+	iListIter.SetToFirst();
+	query = iListIter++;
+	while ( query )
+		{
+		iList.Remove( *query );
+		delete query;
+		query = iListIter++;
+		}
+	}
+
+// ----------------------------------------------------------------------------
+// CRequestQueue::CancelQuery
+// ----------------------------------------------------------------------------
+//
+void CRequestQueue::CancelQuery( MSIPServerResolverObserver* aObserver )
+	{
+	if ( !iList.IsEmpty() )
+		{
+		CServerQuery* query;
+		iListIter.SetToFirst();
+		query = iListIter++;	
+		while( query )
+			{
+			if( query->ServerResolverObserver() == aObserver )
+				{
+				iList.Remove( *query );
+				delete query;
+				}
+			query = iListIter++;
+			}
+		}
+	}
+
+// ----------------------------------------------------------------------------
+// CRequestQueue::AddL
+// ----------------------------------------------------------------------------
+//
+void CRequestQueue::AddL( CServerQuery& aQuery )
+	{
+	if ( !iList.IsEmpty() )
+		{
+		CServerQuery* query;
+		iListIter.SetToFirst();
+		query = iListIter++;
+		while ( query )
+			{
+			if ( query->ServerResolverObserver() ==
+											 aQuery.ServerResolverObserver() )
+				{
+				User::Leave( KErrAlreadyExists );
+				}
+			query = iListIter++;
+			}
+		}
+	iList.AddLast( aQuery );
+	}
+
+// ----------------------------------------------------------------------------
+// CRequestQueue::NextQuery
+// ----------------------------------------------------------------------------
+//
+CServerQuery* CRequestQueue::NextQuery()
+	{
+	if ( !iList.IsEmpty() )
+		{
+		CServerQuery* query = iList.First();
+		iList.Remove( *query );
+		return query;
+		}
+	return 0;
+	}
+