// 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;		

 			}

 		}

 	}