kernel/eka/debug/crashMonitor/src/scmprocessdata.cpp
changeset 0 a41df078684a
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/kernel/eka/debug/crashMonitor/src/scmprocessdata.cpp	Mon Oct 19 15:55:17 2009 +0100
@@ -0,0 +1,178 @@
+// 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;		
+			}
+		}
+	
+	}