// 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\scmprocessdata.cpp

// Core dump server - Process Data for System Crash

// 

//

/**

 @file

 @internalTechnology

*/

#include <scmdatatypes.h>

namespace Debug

	{

	/**

	 * TProcessData implementation

	 * @internal technology

	 */

	/**

	 * TProcessData constructor

	 */

	TProcessData::TProcessData()

		:iId(ESCMProcessData)

		,iVersion(EProcData1)				

		,iPid(0)

		,iNamesize(0)

		,iPriority(0)

		,iSpare1(0)

		,iSpare2(0)	

		,iSpare3(0)

		{

		}

	/**

	 * Writes this classes data to the specified byte stream

	 * @param aWriter byte stream to use

	 * @return One of the OS wide codes

	 */	 

	TInt TProcessData::Serialize(TByteStreamWriter& aWriter)

		{

		TInt startPos = aWriter.CurrentPosition();

		// ID saved first 

		aWriter.WriteInt(iId);		 				// 4

		if(iId != ESCMProcessData)

			{

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

			return KErrCorrupt;

			}

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

		if(iVersion == EProcData1)

			{

			// write data v1 format				

			aWriter.WriteInt(iPriority); 			 	// 4

			aWriter.WriteInt64(iPid);  					// 8

			if(iName.Ptr())

				{

				aWriter.WriteInt(iName.Length());		// 4

				for(TInt cnt = 0; cnt < iName.Length(); cnt++)

					{

					aWriter.WriteByte(iName[cnt]);

					}

				}

			else

				{

				aWriter.WriteInt(0);

				}

			}

		else

			{

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

			return KErrCorrupt;

			}

		TInt endPos = aWriter.CurrentPosition();

		if( endPos - startPos != GetSize())

			{

			// error between actual size & real size in data

			CLTRACE2("TProcessData::Serialize serialization size error. Wrote [%d] but expected [%d]", endPos - startPos, GetSize());

			return KErrCorrupt;

			}

		return KErrNone;

		}				

	/**

	 * Reads the classes data from the specified byte stream

	 * @param aReader Byte stream to use

	 * @return One of the OS wide codes

	 */

	TInt TProcessData::Deserialize(TByteStreamReader& aReader)

		{

		TInt startPos = aReader.CurrentPosition();

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

		if(iId != ESCMProcessData)

			{

			CLTRACE("TProcessData::Deserialize failed - Read corrupt ID");

			return KErrCorrupt;

			}

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

		if(iVersion == EProcData1)

			{

			// read data v1 format						

			iPriority = aReader.ReadInt(); 			 	    // 4		

			iPid = aReader.ReadInt64();						// 8

			iNamesize = aReader.ReadInt();					// 4			

			if(iName.Ptr() && iName.MaxLength() >= (TInt)iNamesize)

				{

				iName.SetLength(0);

				for(TUint cnt = 0; cnt < iNamesize; cnt++)

					{

					iName.Append(aReader.ReadByte());		//iCategorySize bytes

					} 

				}

			}

		else

			{

			iId = ESCMLast;	//unrecognised header

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

			return KErrCorrupt;

			}

		TInt endPos = aReader.CurrentPosition();

		if( endPos - startPos != GetSize())

			{

			iId = ESCMLast;	//unrecognised header

			// error between actual size & real size in data

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

			return KErrCorrupt;			

			}

		return KErrNone;

		}

	/**

	 * Returns the externalised size of this class

	 * @return TInt size

	 */

	TInt TProcessData::GetSize() const

		{

		if(iVersion == EProcData1)

			{

			return 22 + iName.Length();

			}

		else

			{

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

			return KErrNotSupported;		

			}

		}

	}