--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/IMPSengine/engsrv/inc/impstidqueue.h	Thu Dec 17 08:41:52 2009 +0200
@@ -0,0 +1,84 @@
+/*
+* 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: Class for storing imps tid queue
+* 
+*/
+
+
+#ifndef CImpsTidQueue_H
+#define CImpsTidQueue_H
+
+//  INCLUDES
+#include <e32base.h>
+
+// FORWARD DECLARATIONS
+
+// CLASS DECLARATION
+/**
+*  FIFO queue for transaction ids. When the queue at max
+*  capacity the oldest item gets deleted.
+*/
+
+class CImpsTidQueue : public CBase
+    {
+    public:
+
+        /**
+        * 2-phase Constructor
+        */
+        static CImpsTidQueue* NewL();
+
+        // Destructor
+        ~CImpsTidQueue();
+
+        /**
+        * Adds a new orphan message to the end of the queue
+        * @param aTid CSP transaction id
+        */
+        void Add( const TDesC& aTid );
+
+        /**
+        * Check if TID queued already
+        * @param aTid CSP transaction id
+        * @return ETrue if TID found
+        */
+        TBool TidFound( const TDesC& aTid );
+
+        /**
+        * Deletes all entities
+        */
+        void DeleteAll();
+
+    private:
+
+        /**
+        * Constructor
+        */
+        void ConstructL();
+
+        /**
+        * Constructs a new COrpanQueue with given capacity
+        * @param aCapacity the capacity of the queue
+        */
+        CImpsTidQueue( TInt aCapacity );
+
+    private:
+
+        TInt                    iCapacity;
+        TInt                    iNext;  // position to write data
+        CDesCArrayFlat*         iArray;
+    };
+
+
+#endif