--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tracesrv/tracecore/btrace_handler/inc/TraceCoreActivationBase.h Fri Oct 08 14:56:39 2010 +0300
@@ -0,0 +1,121 @@
+// 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 activation classes
+//
+
+#ifndef __TRACECOREACTIVATIONBASE_H__
+#define __TRACECOREACTIVATIONBASE_H__
+
+
+// Include files
+#include "TraceCoreSubscriber.h"
+#include "TraceCoreActivation.h"
+
+//forward declarations
+class DMutex;
+
+/**
+ * Base class for activation objects. This extends the subscriber base class to receive activation updates
+ */
+NONSHARABLE_CLASS( DTraceCoreActivationBase ) : public DTraceCoreSubscriber, public MTraceCoreActivation
+ {
+public:
+
+ /**
+ * Constructor
+ */
+ DTraceCoreActivationBase();
+
+ /**
+ * Destructor
+ */
+ virtual ~DTraceCoreActivationBase();
+
+ /**
+ * Registers an activation notification interface
+ *
+ * @param aNotification the notification interface
+ */
+ TInt RegisterActivationNotification( MTraceCoreActivationNotification& aNotification );
+
+protected:
+
+ /**
+ * Subscribes to message ID and registers to activation interface list
+ *
+ * @param aMessageID the message id to be subscribed
+ */
+ TInt Init( TUint32 aMessageId );
+
+ /**
+ * Subscribes to message ID and registers to activation interface list
+ *
+ * @param aMessageID the message id to be subscribed
+ */
+ TInt SubscribeMessage( TUint32 aMessageId, TMessageHeaderFormat aMsgFormat );
+
+ /**
+ * Sends notification to TraceCore internal activation notification interfaces
+ *
+ * @param aFromSettings ETrue if activation was due to settings read, EFalse if from some other source
+ * @param aComponentId Component ID of the activation
+ */
+ void NotifyInternalActivation( TBool aFromSettings, TUint32 aComponentId );
+
+ /**
+ * Send response
+ *
+ * @param aMessage Response message
+ */
+ void SendResponse( TTraceMessage &aMessage );
+
+ /**
+ * Prevent read-check to internal structures (fast lock).
+ */
+ inline TInt ReadLock();
+
+ /**
+ * Restore read-access to internal structures.
+ */
+ inline void ReadUnlock(TInt aIrqLevel);
+
+
+protected: //data
+
+ /**
+ * Lock used in 'critical path' where performance is very important.
+ * It is used in those routines where structures are checked and not modified.
+ */
+#if defined(__SMP__)
+ TSpinLock iActivationReadLock;
+#endif
+
+ /**
+ * Used to store Irq level between spin lock/unlock operation.
+ */
+ TInt iIrqLevel;
+
+private:
+
+ /**
+ * Array of activation notification interfaces
+ */
+ RPointerArray< MTraceCoreActivationNotification > iActivationNotification;
+ };
+
+
+#include "TraceCoreActivationBase.inl"
+
+
+#endif /* __TRACECOREACTIVATIONBASE_H__ */