--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/realtimenetprots/sipfw/SIP/TransactionUser/inc/MTransactionOwner.h	Tue Feb 02 01:03:15 2010 +0200
@@ -0,0 +1,132 @@
+/*
+* Copyright (c) 2005-2009 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          : MTransactionOwner.h
+* Part of       : TransactionUser
+* Version       : SIP/4.0 
+*
+*/
+
+
+
+
+/**
+ @internalComponent
+*/
+
+#ifndef MTRANSACTIONOWNER_H
+#define MTRANSACTIONOWNER_H
+
+// INCLUDES
+#include "SipStackServerDefs.h"
+
+// FORWARD DECLARATIONS
+class CSIPRequest;
+class CSIPResponse;
+class MSIPSecUser;
+
+
+// CLASS DECLARATION
+/**
+ * This class defines the events which the Transaction subsystem will send
+ * to upper layers. Any subsystem which is using Transaction subsystem, has to
+ * implement this class.
+ */
+class MTransactionOwner
+    {
+public:
+	virtual ~MTransactionOwner() {}
+
+	/**
+	 * Transaction has received a SIP request from a remote endpoint
+     * and passes it to the upper layer.
+	 *
+	 * @pre						aRequest != 0
+	 *
+     * @param aIapId            The IAP using which the request was received.
+	 * @param aTransactionId	Identifies the transaction
+	 * @param aRequest		    IN: SIP request message. The ownership is
+	 *							transferred.
+	 * If the function leaves, the ownership of aRequest is NOT transferred.
+	 */
+	virtual void ReceiveL(TUint32 aIapId,
+                          TTransactionId aTransactionId,
+                          CSIPRequest* aRequest) = 0;
+
+	/**
+	 * Transaction has received a SIP response message from remote endpoint and
+	 * passes it to the upper layer. 
+	 *
+	 * @pre						aResponse != 0
+	 *
+	 * @param aTransactionId	Identifies the transaction
+	 * @param aResponse			IN: SIP response message. The ownership is
+	 *							transferred.
+	 * If the function leaves, the ownership of aResponse is NOT transferred.
+	 */
+	virtual void ReceiveL(TTransactionId aTransactionId,
+                          CSIPResponse* aResponse) = 0;
+
+	/**
+	 * The specified transaction has ended and no more events from that
+	 * transaction will come through the MTransactionOwner interface.
+	 *
+	 * @pre
+	 * @post
+	 *
+	 * @see
+	 *
+	 * @param aIapId The IAP used.
+	 * @param aTransaction Identifies the transaction that ended
+	 * @param aReason Tells why the transaction ended. KErrNone means the
+	 *	transaction ended normally.
+	 * @return value KErrNone if successful, otherwise a system wide error code
+	 */
+	virtual TInt TransactionEnded(TUint32 aIapId,
+	                              TTransactionId aTransaction,
+								  TInt aReason) = 0;
+
+	/**
+	 * TransactionUser is going to send the SIP request either after
+	 * modifications to the request, or to another address, and asks the next
+	 * CSeq sequence number to use for the request.
+	 *
+	 * @pre
+	 * @post
+	 *
+	 * @see
+	 *
+	 * @param aCSeq an in-out parameter. While entering the function contains
+     *        the current CSeq of the caller. On return contains the
+	 *		  incremented CSeq of the callee. If the subsystem implementing the
+	 *		  interface does not keep track of the CSeqs it should simply
+	 *		  increment aCSeq by one.
+     *
+     * @return KErrNone or a system wide error code.	 
+	 */
+	virtual TInt NextCSeq(TUint& aCSeq) = 0;
+	
+	/**
+	 * Returns a pointer to the MSIPSecUser that is used to map the
+	 * SIPSec cache entries to their users and can be used to query credentials
+	 * from the user. 
+     *
+     * @return A pointer to MSIPSecUser. The ownership is not transferred.	 
+	 */	
+	virtual const MSIPSecUser* SIPSecUser() const = 0;
+    };
+
+#endif // end of MTRANSACTIONOWNER_H
+
+// End of File