--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/realtimenetprots/sipfw/SampleApp/socketengine/Inc/SIPExSocketEngine.h	Tue Feb 02 01:03:15 2010 +0200
@@ -0,0 +1,220 @@
+
+/*
+* 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:
+*
+*/
+
+
+
+#ifndef __CSIPEXSOCKETENGINE_H__
+#define __CSIPEXSOCKETENGINE_H__
+
+// INCLUDES
+#include    "SIPExTimeOutTimer.h"
+#include    "SIPExSocketEngineObserver.h"
+#include    "SIPEXReaderNotifier.h"
+#include    "SIPExWriterNotifier.h"
+#include    "SIPExTimeOutNotify.h"
+#include    <in_sock.h>     // SInetAddr
+
+
+// FORWARD DECLARATIONS
+class MSIPExSocketEngineObserver;
+class CSIPExSocketReader;
+class CSIPExSocketWriter;
+class CSIPExTimeOutTimer;
+
+// CLASS DECLARATIONS
+/**
+* Implements socket connections.
+*/
+class CSIPExSocketEngine 
+:   public CActive, 
+    public MSIPExTimeOutNotify,
+    public MSIPExReaderNotifier,
+    public MSIPExWriterNotifier
+    {
+    public:
+
+        /**
+        * Static constructor
+        * @param aObserver A reference to the socket engine observer.
+        */
+        IMPORT_C static CSIPExSocketEngine* NewL( MSIPExSocketEngineObserver& aObserver );
+
+        /**
+        * Static constructor. On return the instance is left to the CleanupStack
+        * @param aObserver A reference to the socket engine observer.
+        */
+        IMPORT_C static CSIPExSocketEngine* NewLC( MSIPExSocketEngineObserver& aObserver );
+
+        /**
+        * Destructor
+        */
+        IMPORT_C ~CSIPExSocketEngine();
+
+    public: // From base classes
+
+        /**
+        * Connecting the socket to the aIPAddress.
+        * @param aIapId An iap id used for connection
+        * @param aIPAddress An ip address where to connect.
+        */
+        IMPORT_C void ConnectL( const TUint32 aIapId, const TInetAddr& aIPAddress );
+        
+        /**
+        * Writes to the socket.
+        * @param aTxt A text to write to the socket.
+        */
+        IMPORT_C void Write( const TDesC8& aTxt );
+
+        /**
+        * Reads from the socket.
+        */
+        IMPORT_C void Read();
+
+        /**
+        * Closing the socket.
+        */
+        IMPORT_C void Stop();
+
+        /**
+        * Starts listening local game port
+        * @param aIapId The IAP id of the active accesspoint. 
+        * @return A local address
+        */
+        IMPORT_C TInetAddr& StartListeningL( const TUint32 aIapId );
+
+    public: 
+
+        /**
+        * Socket engine state enumerations.
+        */
+        enum TSocketEngineState
+            {
+            ENotConnected,
+            EConnecting,
+            EConnected,
+            EListening,
+            ETimedOut
+            };
+
+    protected: // From base classes
+
+        // From MSIPExTimeOutNotify
+        /**
+        * From MSIPExTimeOutNotify
+        * Destructor
+        */
+        void TimerExpired();
+
+        // From MSIPExReaderNotifier
+
+        /**
+        * From MSIPExReaderNotifier
+        */
+        void MessageReceived( TDesC8& aBuffer );
+
+        /**
+        * From MSIPExReaderNotifier
+        */
+        void ErrorInReading( TInt aError );
+
+        // From MSIPExWriterNotifier
+
+        /**
+        * From MSIPExWriterNotifier
+        */
+        void WriteDone();
+        
+        /**
+        * From MSIPExWriterNotifier
+        */
+        void ErrorInWriting( TInt aError );
+
+    protected: // From base classes
+        
+        /**
+        * From CActive
+        * Cancels any outstanding request.
+        */
+        void DoCancel();
+        
+        /**
+        * From CActive
+        * Handles the completion of the active request.
+        */
+        void RunL();
+
+    private: // New functions
+
+        /**
+        * Changes the new state to iState and notifies observer.
+        * @param aNewState A new state of socket engine
+        */
+        void ChangeStateAndNotify( TSocketEngineState aNewState );
+
+         /**
+        * Activates PDP ctx of passed iap
+        * @param aIapId The IAP id of the activated accesspoint.
+        */
+        void StartInterfaceL( const TUint32 aIapId );
+        
+        /**
+        * Gets the local IP address with host resolver.
+        * The address is set to the iAddress variable.
+        */
+        void ResolveLocalIPAddressL();
+
+    private:
+
+        /**
+        * Destructor
+        */
+        CSIPExSocketEngine( MSIPExSocketEngineObserver& aObserver );
+
+        /**
+        * Destructor
+        */
+        void ConstructL();
+
+    private:
+        // Member variables
+
+        // The reference to the socket engine observer
+        MSIPExSocketEngineObserver&  iObserver;
+
+        // Sockets
+        RSocketServ     iSocketServer;
+        RConnection     iConnection;
+        RSocket         iDataSocket;
+        RSocket         iListenSocket;        
+        
+
+        // 
+        CSIPExSocketReader*  iReader;
+        CSIPExSocketWriter*  iWriter;
+        CSIPExTimeOutTimer*  iTimer;
+
+        // Socket engine's state
+        TSocketEngineState  iState;
+
+        // The remote address
+        TInetAddr   iAddress;
+    };
+
+#endif // __CSIPEXSOCKETENGINE_H__
+
+// End of file