--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tracesrv/tracecore/btrace_handler/inc/TraceCoreNotifier.h Fri Oct 08 14:56:39 2010 +0300
@@ -0,0 +1,143 @@
+// 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:
+// Registers / unregisters notification receivers and send notifications
+// to them when needed.
+//
+
+#ifndef __TRACECORENOTIFIER_H__
+#define __TRACECORENOTIFIER_H__
+
+
+// Include files
+#include <kernel/kernel.h>
+#include <opensystemtrace_types.h>
+
+// Forward declarations
+class MTraceCoreNotificationReceiver;
+
+/**
+ * Notification receiver item
+ */
+NONSHARABLE_CLASS( TNotificationReceiverItem )
+ {
+public:
+
+ /**
+ * Component ID
+ */
+ TUint32 iComponentID;
+
+ /**
+ * Group ID
+ */
+ TUint32 iGroupID;
+
+ /**
+ * The notification receiver associated with the component id and group id
+ */
+ MTraceCoreNotificationReceiver* iReceiver;
+ };
+
+
+/**
+ * Notification receiver receives subscriptions and delegates messages to them
+ */
+NONSHARABLE_CLASS( DTraceCoreNotifier ) : public DBase
+ {
+public:
+
+ /**
+ * Constructor
+ */
+ DTraceCoreNotifier();
+
+ /**
+ * Destructor
+ */
+ ~DTraceCoreNotifier();
+
+ /**
+ * Register notification receiver
+ *
+ * @param aItem The properties of the notification receiver
+ */
+ TInt RegisterNotificationReceiver( TNotificationReceiverItem& aItem );
+
+ /**
+ * Unregister notification receiver
+ *
+ * @param aItem The properties of the notification receiver
+ */
+ void UnregisterNotificationReceiver( TNotificationReceiverItem& aItem );
+
+ /**
+ * Unregister all traces of given notification receiver
+ *
+ * @param aNotificationReceiver The notification receiver to be unregistered
+ */
+ void UnregisterNotificationReceiver( MTraceCoreNotificationReceiver& aNotificationReceiver );
+
+ /**
+ * Get defined component's registered group IDs
+ *
+ * @param aComponentID The component id
+ * @param aGroupIDs Array for registered group IDs
+ */
+ void GetComponentRegisteredGroupIDs( TUint32 aComponentID, RArray< TUint >& aGroupIDs );
+
+ /**
+ * Callback when trace is activated
+ *
+ * @param aComponentID The component id
+ * @param aGroupId The group id
+ */
+ void TraceActivated( TUint32 aComponentId, TUint16 aGroupId );
+
+ /**
+ * Callback when trace is deactivated
+ *
+ * @param aComponentID The component id
+ * @param aGroupId The group id
+ */
+ void TraceDeactivated( TUint32 aComponentId, TUint16 aGroupId );
+
+ /**
+ * Callback when there is a trace error
+ *
+ * @param aComponentId The component ID
+ * @param aGroupId The group ID
+ * @param aError The reason for error
+ */
+ void TraceError( TUint32 aComponentId, TUint32 aGroupId, TInt aError );
+
+private:
+
+ /**
+ * Active subscriptions
+ */
+ RArray< TNotificationReceiverItem > iNotificationReceiverItems;
+
+ /**
+ * Notifies immediately if group was activated
+ *
+ * @param aComponentID The component id
+ * @param aGroupId The group id
+ */
+ void NotifyImmediately( TUint32 aComponentId, TGroupId aGroupId );
+
+ };
+
+#endif
+
+// End of File