--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/internetradio2.0/irnetworkcontroller/inc/irdatatransfertracker.h	Wed Aug 18 09:40:26 2010 +0300
@@ -0,0 +1,143 @@
+/*
+* Copyright (c) 2007 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:  Tracks data transmitted through a network connection.
+*
+*/
+
+
+#ifndef C_IRDATATRANSFERTRACKER_H
+#define C_IRDATATRANSFERTRACKER_H
+
+#include <mhttpfilter.h>
+
+#include "irdatatransferobserver.h"
+
+
+/**
+ * Tracks data transmitted through a network connection.
+ *
+ * Data sent or received over HTTP sessions are logged with the implemented HTTP filter.
+ * For raw sockets, the implementation requires that the user of the socket notifies
+ * him of data transfer explicitly.
+ */
+NONSHARABLE_CLASS( CIRDataTransferTracker ): public CBase,
+                                             public MIRDataTransferTracker,
+                                             public MHTTPFilter
+    {
+public:
+
+    /**
+     * Two-phased constructor.
+     *
+     * @return  The created object. Transfers ownership.
+     */
+    static CIRDataTransferTracker*  NewL( );
+
+    /**
+     * Destructor.
+     */
+    ~CIRDataTransferTracker();
+
+// from base class MIRDataTransferTracker
+
+   void SetObserver( MIRDataTransferObserver* );
+    const TIRDataTransferPckg& TransferredData() const;
+    void BindL( RHTTPSession , TIRTransferCategory );
+    void RawDataTransferredL( TInt , TInt , TIRTransferCategory );
+
+// from base class MHTTPFilter
+
+    void MHFRunL( RHTTPTransaction aTransaction, const THTTPEvent& aEvent );
+
+private:
+
+    /**
+     * Constructor.
+     */
+    CIRDataTransferTracker();
+
+    /**
+     * Second-phase constructor.
+     */
+    void ConstructL() const;
+
+    /**
+     * Calculates the header field sizes in bytes from the specified headers.
+     *
+     * @param   aTransaction        HTTP transaction for the headers.
+     * @param   aHeaders            Headers to calculate the size from.
+
+     * @return  Size of the headers in bytes.
+     */
+    TInt HeaderSize( const RHTTPTransaction aTransaction, RHTTPHeaders aHeaders );
+
+    /**
+     * Parses the header sizes (both request and response) of the supplied HTTP transaction,
+     * logging it under the specified category.
+     *
+     * @param   aTransaction        Transaction to parse the headers from.
+     * @param   aCategory           Transfer category to record the data under.
+     */
+    void ParseHeaderSizeL( const RHTTPTransaction aTransaction, TIRTransferCategory aCategory );
+
+    /**
+     * Parses the body size of the supplied HTTP transaction, logging it under the specified category.
+     *
+     * @param   aTransaction        Transaction to parse the headers from.
+     * @param   aCategory           Transfer category to record the data under.
+     */
+    void ParseBodySizeL( const RHTTPTransaction aTransaction, TIRTransferCategory aCategory );
+
+    /**
+     * Processes raw data sent and/or received via the connection.
+     *
+     * @param   aBytesSent          The number of bytes that were sent.
+     * @param   aBytesReceived      The number of bytes that were received.
+     * @param   aCategory           Transfer category to record the data under.
+     */
+    void ProcessDataL( TInt aBytesSent, TInt aBytesReceived, TIRTransferCategory aCategory );
+
+    /**
+     * Dispatches the notification of the data transfer conditionally.
+     *
+     * If the threshold between the last notification's data transfer amount and the current
+     * data transfer amount is not exceeded, then no notification is dispatched.
+     */
+    void DispatchNotificationL();
+
+private:
+
+    /**
+     * Data transfer observer.
+     * Not owned.
+     */
+    MIRDataTransferObserver* iObserver;
+
+    /**
+     * Persistent storage for the data amounts transferred.
+     */
+    MIRDataTransferTracker::TIRDataTransferPckg iPckg;
+
+    /**
+     * The amount of bytes transferred since last notification was dispatched.
+     */
+    TInt iBytesSinceLastNotification;
+
+    /**
+     * The flag to determine Byte Counter crossed first threshold
+     */
+    TBool bThresholdCrossed;
+    };
+
+#endif // C_IRDATATRANSFERTRACKER_H