// 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\scmthreaddata.cpp

// Core dump server - Thread Data for System Crash

// 

//

/**

 @file

 @internalTechnology

*/

#include <scmdatatypes.h>

namespace Debug

	{

	/**

	 * TThreadData implementation

	 * @internal technology

	 */

	/**

	 * TThreadData constructor

	 */

	TThreadData::TThreadData()

	: iId(ESCMThreadData)

		,iVersion(EThreadData1)

		,iPriority(0)

		,iTid(0)

		,iOwnerId(0)

		,iSvcSP(0)

		,iSvcStack(0)

		,iSvcStacksize(0)

		,iUsrSP(0)

		,iUsrStack(0)

		,iUsrStacksize(0)

		,iNamesize(0)

		,iLastCpu(0)

		,iSvcHeap(0)

		,iSvcHeapSize(0)

		{			

		}

	/**

	 * Writes this classes data to the specified byte stream

	 * @param aWriter byte stream to use

	 * @return void

	 */	

	TInt TThreadData::Serialize(TByteStreamWriter& aWriter)

		{

		TInt startPos = aWriter.CurrentPosition();

		if(iId != ESCMThreadData)

			{

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

			return KErrCorrupt;

			}

		// ID saved first 

		aWriter.WriteInt(iId);		 				    // 4		

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

		if(iVersion == EThreadData1)

			{

			// write data v1 format					

			aWriter.WriteInt(iPriority); 			 	// 4

			aWriter.WriteInt64(iTid);  					// 8

			aWriter.WriteInt64(iOwnerId);				// 8

			aWriter.WriteInt(iSvcSP); 			 		// 4

			aWriter.WriteInt(iSvcStack); 			 	// 4

			aWriter.WriteInt(iSvcStacksize); 			 	// 4

			aWriter.WriteInt(iUsrSP); 			 		// 4

			aWriter.WriteInt(iUsrStack); 			 	// 4

			aWriter.WriteInt(iUsrStacksize); 			 	// 4			

			aWriter.WriteInt(iLastCpu); 			 	// 4

			aWriter.WriteInt(iSvcHeap); 			 		// 4

			aWriter.WriteInt(iSvcHeapSize); 			 	// 4

			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("TThreadData::Serialize Unsupported version");

			return KErrCorrupt;

			}

		TInt endPos = aWriter.CurrentPosition();

		if( endPos - startPos != GetSize())

			{

			// error between actual size & real size in data

			CLTRACE("TThreadData::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 TThreadData::Deserialize(TByteStreamReader& aReader)

		{

		TInt startPos = aReader.CurrentPosition();

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

		if(iId != ESCMThreadData)

			{

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

			return KErrCorrupt;

			}

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

		if(iVersion == EThreadData1)

			{

			// read data v1 format	

			iPriority = aReader.ReadInt();		 				// 4		

			iTid = aReader.ReadInt64(); 			 	    	// 8		

			iOwnerId = aReader.ReadInt64();						// 8

			iSvcSP = aReader.ReadInt();							// 4

			iSvcStack = aReader.ReadInt();						// 4

			iSvcStacksize = aReader.ReadInt();					// 4

			iUsrSP = aReader.ReadInt();							// 4

			iUsrStack = aReader.ReadInt();						// 4

			iUsrStacksize = aReader.ReadInt();					// 4

			iLastCpu = aReader.ReadInt();						// 4

			iSvcHeap = aReader.ReadInt();	 			 		// 4

			iSvcHeapSize = aReader.ReadInt();	 			 		// 4

			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());		//iNamesize bytes

					} 

				}	

			}

		else

			{

			iId = ESCMLast;	//unrecognised header

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

			return KErrCorrupt;

			}

		return KErrNone;

		}

	/**

	 * Returns the externalised size of this class

	 * @return TInt size

	 */

	TInt TThreadData::GetSize() const

		{

		if(iVersion == EThreadData1)

			{

			return 66 + iName.Length();

			}

		else

			{

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

			return KErrNotSupported;		

			}

		}

	}