diff -r a151135b0cf9 -r aa2539c91954 tracesrv/tracecore/btrace_handler/inc/TraceCoreActivation.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tracesrv/tracecore/btrace_handler/inc/TraceCoreActivation.h	Fri Oct 08 14:56:39 2010 +0300
@@ -0,0 +1,118 @@
+// 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:
+// Interface to activation bitmap classes
+//
+
+#ifndef __TRACECOREACTIVATION_H__
+#define __TRACECOREACTIVATION_H__
+
+
+class MTraceCoreActivation;
+class DTraceCoreSettings;
+
+
+/**
+ * Interface to get change notification from activation classes
+ */
+NONSHARABLE_CLASS( MTraceCoreActivationNotification )
+    {
+public:
+
+    /**
+     * Notification that the activation state has changed
+     * 
+     * @param aActivation the activation interface that was updated
+     * @param aFromSettings ETrue if activation was due to settings read, EFalse if from some other source
+     * @param aComponentId Component ID of the activation
+     */
+    virtual void ActivationChanged( MTraceCoreActivation& aActivation, TBool aFromSettings,
+            TUint32 aComponentId ) = 0;
+    };
+
+
+/**
+ * Interface to activation classes
+ */
+NONSHARABLE_CLASS( MTraceCoreActivation )
+    {
+public:
+
+    /**
+     * Checks if this bitmap supports the given component ID
+     */
+    virtual TBool IsComponentSupported( TUint32 aComponentID ) = 0;
+    
+    /**
+     * Gets activated groups for this component ID
+     * @param aComponentId the component ID
+     */
+    virtual RArray<TUint> GetActivatedGroups( const TUint32 aComponentId ) = 0;
+    
+    /**
+     * Updates this activation object from the given settings
+     * 
+     * @param aSettings the settings to be read
+     */
+    virtual void ReadFromSettings( DTraceCoreSettings& aSettings ) = 0;
+    
+    /**
+     * Updates the settings with the content of this activation object
+     * 
+     * @param aSettings the settings to be written
+     */
+    virtual void WriteToSettings( DTraceCoreSettings& aSettings ) = 0;
+    
+    /**
+     * Registers an activation notification interface
+     */
+    virtual TInt RegisterActivationNotification( MTraceCoreActivationNotification& aNotification ) = 0;
+    
+     /**
+     * Activate trace group.
+     * Method can be called only from Symbian OS thread context. 
+     * Activation of groupID/ComponentID from IRQs, IDFCs is not allowed.
+     *
+     * @param aComponentId The component ID
+     * @param aGroupId The group ID
+     */
+    virtual void ActivateTrace( const TUint32 aComponentId, const TUint32 aGroupId ) = 0;
+    
+    /**
+     * Deactivate trace group
+     *
+     * Method can be called only from Symbian OS thread context.
+     * Activation of groupID/ComponentID from IRQs, IDFCs is not allowed.
+     * 
+     * @param aComponentId The component ID
+     * @param aGroupId The group ID
+     */
+    virtual void DeactivateTrace( const TUint32 aComponentId, const TUint32 aGroupId ) = 0;
+
+    /**
+     * Deactivates all groups from a component
+     * 
+     * @param aComponentId The component ID
+     */
+    virtual void DeactivateAll( const TUint32 aComponentId ) = 0;
+
+    /**
+     * Reactivate all currently activated traces
+     * 
+     * @return KErrNone if refresh successful
+     */
+    virtual TInt RefreshActivations() { return KErrNotFound; };
+    };
+
+    
+#endif // __TRACECOREACTIVATION_H__