diff -r 000000000000 -r 1bce908db942 natplugins/natpnatfwsdpprovider/inc/nspevents.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/natplugins/natpnatfwsdpprovider/inc/nspevents.h	Tue Feb 02 01:04:58 2010 +0200
@@ -0,0 +1,214 @@
+/*
+* Copyright (c) 2008 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:  Events for NAT FW SDP Providers state machines
+*
+*/
+
+#ifndef NSPEVENTS_H
+#define NSPEVENTS_H
+
+#include "mnatfwconnectivityobserver.h"
+
+class CSdpDocument;
+class CNSPSession;
+
+/**
+ * Class encapsulates callback information for session observer.
+ * Execution of observer callbacks must be done by Controller - object
+ * due to possible synchronous closing, and the following stack unwind.
+ * 
+ * @lib natfwsdpprovider.dll
+ * @since S60 3.2
+ */
+class TEventReturnStatus
+	{
+public: // Enumerations & data
+
+	enum TType /* Types of callbacks */
+		{
+		ENone,
+		EInitialized,
+		EOfferReady,
+		EAnswerReady,
+		EUpdateSdp,
+		EError
+		} iType;
+	
+	TInt iStatus;
+	CSdpDocument* iOffer;
+	CSdpDocument* iAnswer;
+
+
+public: // New functions
+
+	inline TEventReturnStatus(
+			TType aType = ENone,
+			TInt aStatus = KErrNone,
+			CSdpDocument* aOffer = NULL,
+			CSdpDocument* aAnswer = NULL )
+		: iType( aType ),
+		  iStatus( aStatus ),
+		  iOffer( aOffer ),
+		  iAnswer( aAnswer )
+		{
+		}
+	
+	};
+
+
+/**
+ *  State machine event.
+ *
+ *  Allows incoming event specific data to stored in session level, and handled
+ *  in state machine level.
+ *
+ *  @lib natfwsdpprovider.dll
+ *  @since S60 3.2
+ */
+class TNSPStateMachineEvent : public TEventReturnStatus
+    {
+public: // Enumerations
+    
+    enum TRequest /* Types of external events */
+        {
+        ENat,
+        ECreateOffer,
+        EResolve,
+        EDecodeAnswer,
+        EUpdate,
+        EReservationStatus,
+        ECloseSession
+        };
+
+
+public: // New functions
+
+    inline TNSPStateMachineEvent( TInt aStatus,
+    		CSdpDocument* aOffer,
+            CSdpDocument* aAnswer,
+    		TRequest aRequest,
+            CNSPSession& aSession )
+        : TEventReturnStatus( TEventReturnStatus::ENone, aStatus, aOffer, aAnswer ),
+          iRequest( aRequest ),
+          iSession( aSession ),
+          iNextState( KErrNone )
+        {
+        }
+    
+    inline TEventReturnStatus::TType& CallbackType()
+    	{
+    	return iType;
+    	}
+    
+    inline TInt& Status()
+    	{
+    	return iStatus;
+    	}
+    
+    inline CSdpDocument*& Offer()
+    	{
+    	return iOffer;
+    	}
+    
+    inline CSdpDocument*& Answer()
+    	{
+    	return iAnswer;
+    	}
+    
+    inline TRequest& Request()
+        {
+        return iRequest;
+        }
+    
+    inline CNSPSession& Session()
+        {
+        return iSession;
+        }
+    
+    inline TInt& NextState()
+        {
+        return iNextState;
+        }
+
+
+protected: // data
+
+    TRequest iRequest;
+    CNSPSession& iSession;
+    TInt iNextState;
+    
+    };
+
+
+
+/**
+ *  State machine event, for media level specific events.
+ *
+ *  Allows incoming event specific data to stored in session level & media level,
+ *  and handled in state machine level.
+ *
+ *  @lib natfwsdpprovider.dll
+ *  @since S60 3.2
+ */
+
+class TNSPStateMachineMediaEvent : public TNSPStateMachineEvent
+	{
+public: // New functions
+
+	inline TNSPStateMachineMediaEvent( TUint aStreamId,
+			MNATFWConnectivityObserver::TNATFWConnectivityEvent aEvent,
+			TAny* aData,
+			TInt aStatus,
+            CSdpDocument* aOffer,
+            CSdpDocument* aAnswer,
+			TRequest aRequest,
+            CNSPSession& aSession )
+		: TNSPStateMachineEvent( aStatus, aOffer, aAnswer, aRequest, aSession ),
+		  iStreamId( aStreamId ),
+		  iEvent( aEvent ),
+		  iData( aData )
+		{
+		}
+	
+	inline TUint& StreamId()
+		{
+		return iStreamId;
+		}
+	
+	inline MNATFWConnectivityObserver::TNATFWConnectivityEvent& Event()
+		{
+		return iEvent;
+		}
+
+	inline TAny*& Data()
+		{
+		return iData;
+		}
+
+
+protected: // data
+
+	TUint iStreamId;
+	MNATFWConnectivityObserver::TNATFWConnectivityEvent iEvent;
+	TAny* iData;
+	
+	};
+
+
+#define MEDIAEVENT( aEventRef ) \
+	static_cast<TNSPStateMachineMediaEvent&> ( aEventRef )
+
+
+#endif // NSPEVENTS_H
+