--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tracesrv/tracecore/btrace_handler/inc/TraceCoreBTraceHandler.h	Fri Oct 08 14:56:39 2010 +0300
@@ -0,0 +1,149 @@
+// 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:
+// Handler interface for BTrace categories
+//
+
+#ifndef __TRACECOREBTRACEHANDLER_H__
+#define __TRACECOREBTRACEHANDLER_H__
+
+
+// Include files
+#include "TraceCoreHandler.h"
+
+
+// Forward declarations
+class DTraceCoreWriter;
+class DTraceCoreSettings;
+class DBTraceCategoryHandler;
+class DBTraceOstCategoryHandler;
+class DBTraceKernelCategoryHandler;
+class DBTracePrintfCategoryHandler;
+
+
+/**
+ * TraceCoreHandler implementation for BTrace
+ */
+NONSHARABLE_CLASS( DTraceCoreBTraceHandler ) : public DTraceCoreHandler
+    {
+public:
+
+    /**
+     * Constructor
+     */
+    DTraceCoreBTraceHandler();
+    
+    /**
+     * Destructor
+     */
+    ~DTraceCoreBTraceHandler();
+    
+    /**
+     * Initializes this handler
+     */
+    TInt Init();
+    
+    /**
+     * Delegates the writer to category handlers
+     *
+     * @param aWriter The new writer
+     */
+    void PrepareSetWriter( DTraceCoreWriter* aWriter );
+    
+    /**
+     * Delegates the writer to category handlers
+     *
+     * @param aWriter The new writer
+     */
+    void SetWriter( DTraceCoreWriter* aWriter );
+  
+    /**
+     * Delegates the settings (saver) to category handlers
+     */
+    void SetSettings( DTraceCoreSettings* aSettings );
+  
+    /**
+     * Registers a category handler. This overwrites the existing category handler for given category
+     *
+     * @param aCategory The category to be processed with the category handler
+     * @param aHandler The handler which processes the category
+     */
+    void RegisterCategoryHandler( TUint8 aCategory, DBTraceCategoryHandler& aHandler );
+
+    /**
+     * Unregisters a category handler
+     *
+     * @param aCategory The category to be removed
+     */
+    void UnregisterCategoryHandler( TUint8 aCategory );
+
+private:
+
+    /**
+     * Callback function that is registered to BTrace
+     *
+     * @param aHeader BTrace header
+     * @param aHeader2 Extra header data
+     * @param aContext The thread context in which this function was called
+     * @param a1 The first trace parameter
+     * @param a2 The second trace parameter
+     * @param a3 The third trace parameter
+     * @param aExtra Extra trace data
+     * @param aPc The program counter value
+     */
+    static TBool BTraceHandlerFunc( TUint32 aHeader, TUint32 aHeader2, const TUint32 aContext, 
+        const TUint32 a1, const TUint32 a2, const TUint32 a3, const TUint32 aExtra, const TUint32 aPc );
+    
+    /**
+     * Gets the category handler for given BTrace header
+     *
+     * @param aHeader BTrace header
+     */
+    inline DBTraceCategoryHandler* GetCategoryHandler( TUint32 aHeader );
+    
+    /**
+     * Starts the OST category handler
+     */
+    TInt StartOstHandler();
+    /**
+     * Starts the kernel category handler
+     */
+    TInt StartKernelHandler();
+
+private:
+
+    /**
+     * Static instance, accessed from the BTrace handler callback
+     */
+    static DTraceCoreBTraceHandler* iInstance;
+
+    /**
+     * Registered category handlers
+     */
+    DBTraceCategoryHandler** iCategoryHandlers;
+    
+    /**
+     * Category handler for OST
+     */
+    DBTraceOstCategoryHandler* iOstHandler;
+
+    /**
+     * Category handler for Symbian BTrace categories
+     */
+    DBTraceKernelCategoryHandler* iKernelHandler;
+
+};
+
+#endif // __TRACECOREBTRACEHANDLER_H__
+
+// End of File