// 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:

 // e32\debug\crashMonitor\src\scmromdata.cpp

 // Core dump server - ROM Data for System Crash

 // 

 //

 /**

  @file

  @internalTechnology

 */

 #include <scmdatatypes.h>

 namespace Debug

 	{

 	/**

 	 * TRomHeaderData implementation

 	 * @internal technology

 	 */

 	/**

 	 * TRomHeaderData constructor

 	 */

 	TRomHeaderData::TRomHeaderData():

 		iId(ESCMRomHeader),

 		iVersion(ERomHeaderDataVersion1),

 		iMajorVersion(0),

 		iMinorVersion(0),

 		iBuildNumber(0),

 		iTime(0)

 		{			

 		}

 	/**

 	 * Writes this classes data to the specified byte stream

 	 * @param aWriter byte stream to use

 	 * @return void

 	 */	

 	TInt TRomHeaderData::Serialize(TByteStreamWriter& aWriter)

 		{

 		TInt startPos = aWriter.CurrentPosition();

 		if(iId != ESCMRomHeader)

 			{

 			CLTRACE("TRomHeaderData::Serialize Corrupt ID");

 			return KErrCorrupt;

 			}

 		// ID saved first 

 		aWriter.WriteInt(iId);		 				    // 4		

 		aWriter.WriteShort((TUint16) iVersion);			// 2

 		if(iVersion == ERomHeaderDataVersion1)

 			{

 			//ROM time

 			aWriter.WriteInt64(iTime);					// 8

 			//Now the ROM version

 			aWriter.WriteByte(iMajorVersion);				// 1

 			aWriter.WriteByte(iMinorVersion);				// 1

 			aWriter.WriteShort(iBuildNumber);				// 2			

 			}

 		else

 			{

 			CLTRACE("TRomHeaderData::Serialize Unsupported version");

 			return KErrCorrupt;

 			}

 		TInt pos1 = aWriter.CurrentPosition();

 		if( pos1 - startPos != GetSize())

 			{

 			// error between actual size & real size in data

 			CLTRACE("TRomHeaderData::Serialize serialization size error");	

 			return KErrCorrupt;

 			}

 		return KErrNone;

 		}

 	/**

 	 * Reads the classes data from the specified byte stream

 	 * @param aReader Byte stream to use

 	 * @return void

 	 */

 	TInt TRomHeaderData::Deserialize(TByteStreamReader& aReader)

 		{

 		TInt startPos = aReader.CurrentPosition();

 		iId = (SCMStructId)aReader.ReadInt();					// 4

 		if(iId != ESCMRomHeader)

 			{

 			CLTRACE("TRomHeaderData::Deserialize Corrupt ID read");

 			return KErrCorrupt;

 			}

 		iVersion = (TRomHeaderDataVersion)aReader.ReadShort();			// 2

 		if(iVersion == ERomHeaderDataVersion1)

 			{			

 			//ROM time

 			iTime = aReader.ReadInt64();					// 8

 			//Now the ROM version

 			iMajorVersion = aReader.ReadByte();				// 1

 			iMinorVersion = aReader.ReadByte();				// 1

 			iBuildNumber = aReader.ReadShort();				// 2

 			}

 		else

 			{

 			iId = ESCMLast;	//unrecognised header

 			CLTRACE("TRomHeaderData::Deserialize Unsupported version");

 			return KErrCorrupt;

 			}

 		TInt pos1 = aReader.CurrentPosition();

 		if( pos1 - startPos != GetSize())

 			{

 			iId = ESCMLast;	//unrecognised header

 			// error between actual size & real size in data

 			CLTRACE("TRomHeaderData::Deserialize serialization size error");	

 			return KErrCorrupt;

 			}

 		return KErrNone;

 		}

 	/**

 	 * Returns the externalised size of this class

 	 * @return TInt size

 	 */

 	TInt TRomHeaderData::GetSize() const

 		{

 		if(iVersion == ERomHeaderDataVersion1)

 			{

 			return 18;

 			}

 		else

 			{

 			CLTRACE("ERomHeaderDataVersion1::GetSize Unsupported version");			

 			return KErrNotSupported;		

 			}

 		}

 	}