--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/testexecfw/statsrv/device/source/statapi/src/datasupplier_memory.cpp	Mon Mar 08 15:03:44 2010 +0800
@@ -0,0 +1,229 @@
+/*
+* Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "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: 
+*
+*/
+
+
+
+ /*************************************************************************
+ *
+ * System Includes
+ *
+ *************************************************************************/
+
+/*************************************************************************
+ *
+ * Local Includes
+ *
+ *************************************************************************/
+
+#include "datasupplier_memory.h"
+
+/*************************************************************************
+ *
+ * Definitions
+ *
+ *************************************************************************/
+
+/*************************************************************************
+ *
+ * CDataSupplierMemory - Construction
+ *
+ *************************************************************************/
+CDataSupplierMemory *CDataSupplierMemory::NewL()
+	{
+	CDataSupplierMemory *self = new (ELeave) CDataSupplierMemory();
+
+	CleanupStack::PushL(self);
+
+	self->ConstructL();
+
+	CleanupStack::Pop();
+
+	return self;
+	}
+
+CDataSupplierMemory::CDataSupplierMemory() : CBase(),
+	iDataBuffer( NULL ), iCurrentLocation( 0 )
+	{
+	;
+	}
+
+void CDataSupplierMemory::ConstructL( void ) 
+	{
+	iLock.CreateLocal( EOwnerProcess );
+	}
+
+CDataSupplierMemory::~CDataSupplierMemory( )
+	{
+	iLock.Wait( );
+		{
+		delete iDataBuffer;
+		iDataBuffer = NULL;
+		iCurrentLocation = 0;
+
+		iLock.Close( );
+		}
+	}
+
+/*************************************************************************
+ *
+ * CDataSupplierMemory - Public interface
+ *
+ *************************************************************************/
+
+/*************************************************************************
+ *
+ * Delete
+ *
+ *************************************************************************/
+
+void CDataSupplierMemory::Delete( void ) 
+	{
+	delete this;
+	}
+
+/*************************************************************************
+ *
+ * GetTotalSize
+ *
+ *************************************************************************/
+
+TInt CDataSupplierMemory::GetTotalSize( TInt &aTotalSize )
+	{
+	TInt	err = KErrNone;
+	TInt	size = 0;
+
+	iLock.Wait( );
+		{
+		size = iDataBuffer->Length( );
+
+		aTotalSize = size;
+
+		iLock.Signal( );
+		}
+
+	return ( err );
+	}
+
+/*************************************************************************
+ *
+ * GetRemainingSize
+ *
+ *************************************************************************/
+
+TInt CDataSupplierMemory::GetRemainingSize( TInt &aRemainingSize )
+	{
+	TInt	err = KErrNone;
+	TInt	remaining = 0;
+
+	iLock.Wait( );
+		{
+		TInt	totalSize =	0;
+
+		err = GetTotalSize( totalSize );
+
+		if( err == KErrNone )
+			{
+			remaining = totalSize - iCurrentLocation;
+
+			aRemainingSize = remaining;
+			}
+
+		iLock.Signal( );
+		}
+
+	return ( err );
+	}
+
+/*************************************************************************
+ *
+ * SetData
+ *
+ *************************************************************************/
+
+TInt CDataSupplierMemory::SetData( const TDesC8 &aSource )
+	{
+	TInt	err = KErrNone;
+
+	iLock.Wait( );
+		{
+		delete iDataBuffer;
+		iDataBuffer = NULL;
+
+		TInt length = aSource.Length( );
+		iDataBuffer = HBufC8::New( length );
+
+		if(iDataBuffer)
+			{
+			*iDataBuffer = aSource;
+			}
+		else
+			{
+			err = KErrNoMemory;
+			}
+
+		iCurrentLocation = 0;
+		iLock.Signal( );
+		}
+
+#ifdef _DEBUG
+	{
+	TInt totalSize = 0;
+	GetTotalSize( totalSize );
+	TInt remainingSize = 0;
+	GetRemainingSize( remainingSize );
+	}
+#endif
+
+	return ( err );
+	}
+
+/*************************************************************************
+ *
+ * GetData
+ *
+ *************************************************************************/
+
+TInt CDataSupplierMemory::GetData( HBufC8 &aDestination, 
+				TInt aLengthToCopy, TInt &aActuallyCopied )
+	{
+	TInt	err = KErrNone;
+
+	iLock.Wait( );
+		{
+		TInt remainingSize = 0;
+		err = GetRemainingSize( remainingSize );
+
+		if( err == KErrNone )
+			{
+			TInt toCopy = Min( aLengthToCopy, remainingSize );
+
+			TPtr8 destPtr( aDestination.Des( ) );
+			destPtr.Copy( iDataBuffer->Ptr( ) + iCurrentLocation,
+							toCopy );
+
+			if( err == KErrNone )
+				{
+				iCurrentLocation += toCopy;
+				aActuallyCopied = toCopy;
+				}
+			}
+
+		iLock.Signal( );
+		}
+
+	return ( err );
+	}