--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tracesrv/tracecore/btrace_handler/inc/TraceCoreHandler.h	Fri Oct 08 14:56:39 2010 +0300
@@ -0,0 +1,96 @@
+// 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:
+// Base class for trace core handlers.
+//
+
+#ifndef __TRACECOREHANDLER_H__
+#define __TRACECOREHANDLER_H__
+
+
+// Include files
+#include <kernel/kernel.h>
+
+
+// Forward declarations
+class DTraceCoreSettings;
+class DTraceCoreWriter;
+
+
+/**
+ * Base class for trace core handlers. A handler receives trace data and delegates it to writer
+ */
+NONSHARABLE_CLASS( DTraceCoreHandler ) : public DBase
+    {
+public:
+
+    /**
+     * Constructor
+     */
+    DTraceCoreHandler();
+    
+    /**
+     * Destructor
+     */
+    ~DTraceCoreHandler();
+
+    /**
+     * Registers this handler to trace core.
+     */
+    TInt Register();
+    
+    /**
+     * Called before SetWriter with interrupts enabled
+     *
+     * @param aWriter The new writer
+     */
+    virtual void PrepareSetWriter( DTraceCoreWriter* aWriter );
+
+    /**
+     * Sets the active writer. This is called with interrupts disabled
+     *
+     * @param aWriter The new writer
+     */
+    virtual void SetWriter( DTraceCoreWriter* aWriter );
+
+	/**
+     * Sets the settings (saver). Called by trace core
+     *
+     * @param aSettings The new settings
+     */
+    virtual void SetSettings( DTraceCoreSettings* aSettings );
+    
+private:
+
+    /**
+     * Unregisters this handler from trace core. Called from destructor
+     */
+    void Unregister();
+    
+protected:
+    
+    /**
+     * Writer interface
+     */
+ 	DTraceCoreWriter* iWriter;
+ 	
+ 	/**
+     * Settings interface
+     */
+ 	DTraceCoreSettings* iSettings;
+ 	
+};
+
+#endif
+
+// End of File