// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).

 // All rights reserved.

 // This component and the accompanying materials are made available

 // under the terms of the License "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:

 //

 // WARNING: This file contains some APIs which are internal and are subject

 //          to change without notice. Such APIs should therefore not be used

 //          outside the Kernel and Hardware Services package.

 //

 /**

  @file

  @internalTechnology

 */

 #ifndef __SCMCONFIG_H_INCLUDED__

 #define __SCMCONFIG_H_INCLUDED__

 #include <e32def.h>

 #include <scmbytestreamutil.h>

 #include <scmconfigitem.h>

 namespace Debug{

 	//Note -- Changing the size of this requires a change in KScmConfigMaxSize

     _LIT8(KScmConfigHeaderString, "SCMCONFIG");

     /**

      * This class handles the configuration section of the crash partition.

      * It is responsible for reading and writing it

      */

 	class SCMConfiguration : public MByteStreamSerializable

 		{

 		public:

 			//The 9 here refers to the size of KScmConfigHeaderString which is serialised

 			static const TInt KScmConfigMaxSize = TConfigItem::ELast * sizeof(TConfigItem) + 9;

 			SCMConfiguration();		

 			virtual ~SCMConfiguration();

 			// from MByteStreamSerializable

 			virtual TInt Serialize(TByteStreamWriter& aWriter);

 			virtual TInt Deserialize(TByteStreamReader& aReader);

 		 	virtual TInt GetSize() const;

 		 	TConfigItem* GetNextItem();

 			TInt SetDefaultConfig();

 			TInt CreateConfigItem(const TConfigItem::TSCMDataType aDataType, const TUint8 aPriority, const TInt32 aSizeToDump);

 			TInt ModifyConfigItemPriority(const TConfigItem::TSCMDataType aDataType, const TUint8 aPriority);

 			void ResetToHighestPriority();

 		 	TBool operator == (const SCMConfiguration& aOther) const;

 		 	TConfigItem* ConfigList() const;

 			TInt InsertToList(TConfigItem* aItem);

 			void ClearList(); 		

 		private:	

 			/**

 			 * This is an ordered linked list of TConfigItems. The first is the highest priority and so on until the lowest priority 

 			 */			

 			TConfigItem* iConfigList;

 			/**

 			 * Everytime GetNextItemToDump is called this moves down along the list 

 			 */

 			TConfigItem* iNextItem;   

 		private:	

 			TInt RemoveFromList(TConfigItem* aItem);

 		};

 	}

 #endif /*__SCMCONFIG_H_INCLUDED__*/