commsfwutils/commsbufs/inc/commsbufchain.inl
changeset 0 dfb7c4ff071f
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/commsfwutils/commsbufs/inc/commsbufchain.inl	Thu Dec 17 09:22:25 2009 +0200
@@ -0,0 +1,59 @@
+// Copyright (c) 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:
+//
+
+
+inline RCommsBufChain::RCommsBufChain()
+: iNext(NULL)
+	{
+	}
+	
+inline RCommsBufChain::RCommsBufChain(RCommsBuf* aHeadBuf)
+: iNext(aHeadBuf)
+	{
+	}
+
+inline TBool RCommsBufChain::IsEmpty() const
+/**
+Check if the chain is empty. If empty returns ETrue otherwise EFalse
+*/
+	{
+	return (iNext == NULL);
+	}
+
+inline RCommsBuf* RCommsBufChain::First()
+/**
+Returns the first RCommsBuf in the chain.
+*/
+	{
+	return iNext;	
+	}
+
+inline RCommsBuf* RCommsBufChain::Goto(TInt aDataOffset, TInt& aBufDataOffset, TInt& aBufDataLen) const
+ /**
+Goto specified byte offset into a CommsBuf chain. Used as part of copyin/out, split etc to position
+RCommsBuf pointer and offset from start of iBuffer.
+
+@param anOffset The offset
+@param resBuf result buffer
+@param resOffset result offset
+@param resLength result length
+@param resPrevBuf result previous RCommsBuf in the chain
+@return ETrue if successful
+*/
+	{
+	RCommsBuf* buf;
+	return Goto(aDataOffset, aBufDataOffset, aBufDataLen, buf);
+	}
+