diff -r 000000000000 -r 094583676ce7 IMPSengine/engsrv/src/impstidqueue.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/IMPSengine/engsrv/src/impstidqueue.cpp	Thu Dec 17 08:41:52 2009 +0200
@@ -0,0 +1,119 @@
+/*
+* Copyright (c) 2005 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: Queue class for IMPS tid.
+*
+*
+*/
+
+
+// INCLUDE FILES
+#include    <e32std.h>
+#include    <e32base.h>
+#include    <badesca.h>
+#include    "impstidqueue.h"
+
+// MACROS
+#ifndef _DEBUG
+#define _NO_IMPS_LOGGING_
+#endif
+
+// ---------------------------------------------------------
+// CImpsTidQueue::NewL
+// ---------------------------------------------------------
+//
+CImpsTidQueue* CImpsTidQueue::NewL()
+    {
+    CImpsTidQueue* self = new ( ELeave ) CImpsTidQueue( 6 );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop();
+    return self;
+    }
+
+// ---------------------------------------------------------
+// CImpsTidQueue::ConstructL
+// ---------------------------------------------------------
+//
+void CImpsTidQueue::ConstructL()
+    {
+    iArray = new ( ELeave ) CDesCArrayFlat( 6 );
+    }
+
+// -----------------------------------------------------------------------------
+// CImpsTidQueue::CImpsTidQueue
+// Constructor
+// -----------------------------------------------------------------------------
+//
+CImpsTidQueue::CImpsTidQueue( TInt aCapacity ):
+        iCapacity( aCapacity ),
+        iNext( 0 )
+    {
+    }
+
+// -----------------------------------------------------------------------------
+// CImpsTidQueue::~CImpsTidQueue
+// Destructor
+// -----------------------------------------------------------------------------
+//
+CImpsTidQueue::~CImpsTidQueue()
+    {
+    if ( iArray )
+        {
+        iArray->Reset();
+        delete iArray;
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// CImpsTidQueue::Add
+// Adds a new orphan message to the queue
+// -----------------------------------------------------------------------------
+//
+void CImpsTidQueue::Add( const TDesC& aTid )
+    {
+    TInt err = KErrNone;
+    iNext++;
+    if ( iNext > iCapacity )
+        {
+        iArray->Delete( 0 );
+        iArray->Compress();
+        }
+    TRAP( err, iArray->AppendL( aTid ) );
+    }
+
+// -----------------------------------------------------------------------------
+// CImpsTidQueue::TidFound
+// -----------------------------------------------------------------------------
+//
+TBool CImpsTidQueue::TidFound( const TDesC& aTid )
+    {
+    TInt index = -1;
+    TInt ret = iArray->Find( aTid, index );
+    return ret ? EFalse : ETrue;
+    }
+
+// -----------------------------------------------------------------------------
+// CImpsTidQueue::DeleteAll
+// -----------------------------------------------------------------------------
+//
+void CImpsTidQueue::DeleteAll()
+    {
+    iNext = 0;
+    iArray->Reset();
+    iArray->Compress();
+    }
+
+
+
+//  End of File