--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tracesrv/tracecore/btrace_handler/inc/TraceCoreMediaSWriter.h	Fri Oct 08 14:56:39 2010 +0300
@@ -0,0 +1,216 @@
+// Copyright (c) 2007-2010 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:
+// Trace Core
+//
+
+#ifndef TRACECOREMEDIASWRITER_H_
+#define TRACECOREMEDIASWRITER_H_
+
+
+// Include files
+#include "TraceCoreWriter.h"
+
+
+// Forward declarations
+class DTraceCoreMediaIf;
+class TMediaSWriterStatistics;
+
+/**
+ * Properties of a single trace
+ */
+class TTraceBuffer
+    {
+public:
+    TTraceBuffer* iNext;
+    TUint8* iBuffer;
+    TUint16 iLength;
+    TUint16 iMissedBefore;
+    TUint8 iType;
+    };
+
+
+/**
+ * Writer implementation, which uses the media interface to write data
+ */
+class DTraceCoreMediaSWriter : public DTraceCoreWriter
+    {
+public:
+    
+    /**
+     * Constructor
+     */
+    IMPORT_C DTraceCoreMediaSWriter();
+    
+    /**
+     * Destructor
+     */
+    IMPORT_C ~DTraceCoreMediaSWriter();
+    
+    /**
+     * Registers this writer to TraceCore
+     */
+    IMPORT_C TInt Register();
+    
+    /**
+     * Gets the number of traces allowed per second
+     */
+    virtual TInt GetTraceFrequency() = 0;
+    
+    /**
+     * Initializes a trace buffer
+     * 
+     * @param aType the entry type
+     * @param aBuffer the buffer
+     */
+    virtual void StartBuffer( TWriterEntryType aType, TTraceBuffer& aBuffer ) = 0;
+    
+    /**
+     * Finishes a trace buffer
+     * 
+     * @param aBuffer the buffer
+     * @return ETrue if trace can be 'dropped'
+     */
+    virtual TBool EndBuffer( TTraceBuffer& aBuffer ) = 0;
+    
+private:
+
+    /**
+     * Starts an entry
+     *
+     * @return the entry ID that is passed to other Write-functions
+     */
+    IMPORT_C TUint32 WriteStart( TWriterEntryType aType );
+
+    /**
+     * Ends an entry
+     *
+     * @param aEntryId the entry ID returned by WriteStart
+     */
+    IMPORT_C void WriteEnd( TUint32 aEntryId );
+
+    /**
+     * Writes 8-bit data to given entry
+     * 
+     * @param aEntryId the entry ID returned by WriteStart
+     * @param aData the trace data
+     */
+    IMPORT_C void WriteData( TUint32 aEntryId, TUint8 aData );
+
+    /**
+     * Writes 16-bit data to given entry
+     * 
+     * @param aEntryId the entry ID returned by WriteStart
+     * @param aData the trace data
+     */
+    IMPORT_C void WriteData( TUint32 aEntryId, TUint16 aData );
+
+    /**
+     * Writes 32-bit data to given entry
+     * 
+     * @param aEntryId the entry ID returned by WriteStart
+     * @param aData the trace data
+     */
+    IMPORT_C void WriteData( TUint32 aEntryId, TUint32 aData );
+    
+    /**
+     * DFC for sending data
+     *  
+     * @param aMediaWriter the media writer
+     */
+    static void SendDfc( TAny* aMediaWriter );
+    
+    /**
+     * Called from the static function to send data
+     */
+    void SendDfc();
+    
+    /**
+     * Initializes the statistics
+     */
+    TBool InitStatistics();
+    
+    
+private:
+        
+    /**
+     * Media interface for sending data
+     */
+    DTraceCoreMediaIf* iMediaIf;
+        
+    /**
+     * DFC for sending data
+     */
+    TDfc iSendDfc;
+        
+    /**
+     * Timer which is used to send traces
+     */
+    TTickLink iSendTimer;
+    
+    /**
+     * Flags which tells if the timer is active or not
+     */
+    TBool iSendTimerActive;
+    
+    /**
+     * Pointer to the list of free trace buffers
+     */
+    TTraceBuffer* iFirstFreeBuffer;
+    
+    /**
+     * Pointer to the next trace to be sent
+     */
+    TTraceBuffer* iFirstReadyBuffer;
+    
+    /**
+     * Pointer to the end of list where new traces are added
+     */
+    TTraceBuffer* iLastReadyBuffer;
+    
+    /**
+     * All trace buffers
+     */
+    TTraceBuffer* iTraceBuffers;
+
+    /**
+     * Number of free buffers
+     */
+    TUint32 iFreeBuffers;
+    
+    /**
+     * Thread which sends data
+     */
+    NThread* iSenderThread;
+
+    /**
+     * Timestamp of the last trace sent
+     */
+    TUint32 iLastTraceSent;
+    
+    /**
+     * Media writer statistics
+     */
+    TMediaSWriterStatistics* iStatistics;
+    
+    /**
+     * Number of FastCounter ticks between traces
+     */
+    TInt iFastCounterBetweenTraces;
+    
+    };
+
+
+#endif /*TRACECOREMEDIASWRITER_H_*/
+
+// End of file