--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/commsfwsupport/commselements/NetMeta/src/MetaBuffer.cpp	Thu Dec 17 09:22:25 2009 +0200
@@ -0,0 +1,174 @@
+// Copyright (c) 2004-2009 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:
+//
+
+/**
+ @file
+ @internalTechnology
+*/
+
+#include <elements/metabuffer.h>
+#include <elements/metadata.h>
+
+
+#ifdef _DEBUG
+// Panic category for "absolutely impossible!" vanilla ASSERT()-type panics from this module
+// (if it could happen through user error then you should give it an explicit, documented, category + code)
+_LIT(KSpecAssert_ElemNetMetaMtBfr, "ElemNetMetaMtBfr");
+#endif
+
+using namespace Meta;
+
+TMetaBuf8::TMetaBuf8(const TAny* aData)
+	: TMetaVarLen8<RBuf8>(aData)
+	{
+	}
+
+EXPORT_C MMetaType* TMetaBuf8::NewL(const TAny* aMem, const TAny* aData)
+/**
+ * Instantiates a meta type for RBuf8.
+ * Used for attribure registration (in the data v-table).
+ */
+    {
+    return ::new ((TUint8*)aMem) TMetaBuf8(aData);
+    }
+
+EXPORT_C TInt TMetaBuf8::Load(TPtrC8& aBuffer)
+	{
+	TInt errlen = CheckBuf( aBuffer );
+	if (errlen < 0)
+		{
+		return errlen;
+		}
+	if ( iData->MaxLength() < errlen )
+		{
+		iData->Close();
+		TInt err = iData->Create(errlen);
+		if ( err != KErrNone )
+			return err;
+		}
+	//and copy whatever we can into the client descriptor
+	CopyBuf(aBuffer,errlen);
+
+	TInt padByte = errlen % 2;
+	aBuffer.Set(aBuffer.Ptr() + errlen + padByte, aBuffer.Length() - errlen - padByte); //update pointer
+	return KErrNone;
+	}
+
+EXPORT_C TInt TMetaBuf8::Store(TDes8& aBuffer) const
+	{
+	// Ask the descriptor how much data does it currently store
+	TUint32 size = this->iData->Length();
+
+   	// The length variable and the data must fit
+	if ((TUint32)(aBuffer.MaxLength() - aBuffer.Length()) < (size + sizeof(TUint32)))
+		{
+		return KErrOverflow;
+		}
+
+    // Store
+	aBuffer.Append((TUint8*)&size, sizeof(TUint32));
+	AppendToBuf(aBuffer);
+	if (size & 1)
+		{
+		// Pad odd lengths to an even number to avoid potential
+		// alignment issues on target
+		TUint8 pad(0);
+		aBuffer.Append(&pad, 1);
+		}
+	
+	return KErrNone;
+	}
+
+EXPORT_C void TMetaBuf8::Copy(const TAny* aData)
+	{
+	const RBuf8& var = *((RBuf8*)aData);
+	if ( iData->MaxLength() < var.Length() )
+		{
+		iData->Close();
+		TInt err = iData->Create(var.Length());
+		if ( err != KErrNone )
+			return;
+		}
+	TMetaVarLen8<RBuf8>::Copy(aData);
+	}
+
+EXPORT_C TInt TMetaBuf8::Length() const
+	{
+	return TMetaVarLen8<RBuf8>::Length();
+	}
+
+TMetaBuf16::TMetaBuf16(const TAny* aData)
+	: TMetaVarLen16<RBuf16>(aData)
+	{
+	}	
+
+EXPORT_C MMetaType* TMetaBuf16::NewL(const TAny* aMem, const TAny* aData)
+/**
+ * Instantiates a meta type for RBuf8.
+ * Used for attribure registration (in the data v-table).
+ */
+    {
+    return ::new ((TUint8*)aMem) TMetaBuf16(aData);
+    }	
+
+EXPORT_C TInt TMetaBuf16::Load(TPtrC8& aBuffer)
+	{
+	TInt errlen = CheckBuf( aBuffer );
+	if (errlen < 0)
+		{
+		return errlen;
+		}
+	
+	// errlen is in bytes we want unicode chars
+	__ASSERT_DEBUG((errlen & 1) == 0, User::Panic(KSpecAssert_ElemNetMetaMtBfr, 1));
+	if ( iData->MaxLength() < errlen / 2)
+		{
+		iData->Close();
+		TInt err = iData->Create(errlen / 2);
+		if ( err != KErrNone )
+			return err;
+		}
+	//and copy whatever we can into the client descriptor
+	CopyBuf(aBuffer,errlen);
+
+	aBuffer.Set(aBuffer.Ptr() + errlen, aBuffer.Length() - errlen); //update pointer
+	return KErrNone;
+	}
+
+EXPORT_C TInt TMetaBuf16::Store(TDes8& aBuffer) const
+	{
+	return TMetaVarLen16<RBuf16>::Store(aBuffer);
+	}
+
+EXPORT_C void TMetaBuf16::Copy(const TAny* aData)
+	{
+	const RBuf16& var = *((RBuf16*)aData);
+	if ( iData->MaxLength() < var.Length() )
+		{
+		iData->Close();
+		TInt err = iData->Create(var.Length());
+		if ( err != KErrNone )
+			return;
+		}
+	TMetaVarLen16<RBuf16>::Copy(aData);
+	}
+
+EXPORT_C TInt TMetaBuf16::Length() const
+	{
+	return TMetaVarLen16<RBuf16>::Length();
+	}
+
+
+