--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sysstatemgmt/systemstatemgr/ssm/inc/ssmswptransitionscheduler.h	Tue Feb 02 00:53:00 2010 +0200
@@ -0,0 +1,100 @@
+// Copyright (c) 2007-2009 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:
+//
+
+#ifndef __SSMSWPTRANSITIONSCHEDULER_H__
+#define __SSMSWPTRANSITIONSCHEDULER_H__
+
+#include <e32base.h>
+
+class CSsmSwpTransitionEngine;
+class CSsmSwpIndividualTransitionScheduler;
+
+/**
+This helper Interface can be used for testing or to monitor the progress of the tranisitons
+by wrapping the scheduler and registering the wrapper class as a monitor
+
+@internalComponent
+@released
+*/
+class MSwpSchedulerMonitor
+	{
+public:
+	virtual void SwpTransitionQueued() = 0;
+	virtual void SwpTransitionStarted() = 0;
+	virtual void SwpTransitionCompleted(TUint numberCompleted) = 0;
+	virtual void SwpTransitionFailed(TUint numberFailed) = 0;
+	};
+
+/**
+ The scheduler class is responsible for submitting and scheduling transitions sequencially
+ If  transition is active, the scheduler will queue the transition until all active 
+ and queued transitions have been completed.
+ 
+ @internalComponent
+ @released
+ */
+class CSsmSwpTransitionScheduler : public CTimer
+	{
+	// Allow the individual transition schedulers to interact more
+	// closely with this class
+	friend class CSsmSwpIndividualTransitionScheduler;
+	
+public:
+	// methods
+	static CSsmSwpTransitionScheduler* NewL();
+	static CSsmSwpTransitionScheduler* NewLC();
+	~CSsmSwpTransitionScheduler();
+
+	void SubmitL(CSsmSwpTransitionEngine* aEngine); // takes ownership
+	void Cancel(CSession2* aSession);
+		
+	void SetTransactionMonitor(MSwpSchedulerMonitor* aMonitor)
+		{
+		iTransactionMonitor = aMonitor;
+		}
+	//used only for testing
+#ifdef _DEBUG
+	void CleanupIndividualSchedulerArray();
+#endif
+
+protected:
+	// From CActive
+	void RunL();
+	TInt RunError(TInt aError);
+
+private:
+	// methods
+	CSsmSwpTransitionScheduler(); // only accessible from factory methods
+	void ConstructL();
+
+	void NotifyTransitionQueued();
+	void NotifyTransitionStarted();
+	void NotifyTransitionCompleted();
+	void NotifyTransitionFailed();
+	
+	CSsmSwpIndividualTransitionScheduler* FindScheduler(CSsmSwpTransitionEngine* aEngine);
+
+private:
+	// members
+	RPointerArray<CSsmSwpIndividualTransitionScheduler> iIndividualTransitionSchedulers;
+
+	TLinearOrder<CSsmSwpIndividualTransitionScheduler> iLinearOrder;
+	
+	MSwpSchedulerMonitor* iTransactionMonitor;
+	TUint iNumberOfCompletedTransitions;
+	TUint iNumberOfFailedTransitions;
+	};
+
+#endif