--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/commsfwutils/commsbufs/inc/commsbufpondintf.h	Thu Dec 17 09:22:25 2009 +0200
@@ -0,0 +1,95 @@
+// 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:
+//
+
+#ifndef __COMMSBUFPONDINTF_H__
+#define __COMMSBUFPONDINTF_H__
+
+#include <e32base.h>
+
+class RCommsBuf;
+class CCommsBufAsyncRequest;
+class MCommsBufPondDbg;
+
+/**
+This class defines a interface to communicate with the legacy mbufmanager or
+with the system wide shared buffer mechanism
+@internalTechnology
+*/
+class MCommsBufPondIntf 
+	{
+	public:
+	/**
+	Allocate a new RCommsBuf
+	
+	@param aSize - Requested total size
+	@param aMinBufSize - The size that the allocated buffer must atleast have
+	@param aMaxBufSize - The size that the allocated buffer "can" have.
+
+	@return RCommsBuf if allocation is successful otherwise NULL.
+	*/
+
+	virtual RCommsBuf* Alloc(TInt aSize, TInt aMinBufSize, TInt aMaxBufSize) =0;
+	
+	virtual RCommsBuf* FromHandle(TInt aHandle) =0;
+
+	virtual TInt Store(TDes8& aStore) const = 0;
+
+	/**
+	Frees the RCommsBuf
+
+	@param aBuf - RCommsBuf for freeing
+	*/
+	virtual void Free(RCommsBuf* aBuf) =0;
+	/**
+	Total bytes available in the mbufmgr or shared buffer system
+	*/
+	virtual TInt BytesAvailable() const =0;
+	/**
+	Total bytes available in a pool with a given size.
+	*/
+	virtual TInt BytesAvailable(TInt aSize) const =0;
+	/**
+	Returns the buffer size that is greater than the given size.
+	*/
+	virtual TInt NextBufSize(TInt aSize) const =0;
+
+	/**
+	Larget buffer size available in the mbufmgr or shared buffer system
+	*/
+	virtual TInt LargestBufSize() const =0;
+	/**
+	Request to allocate a RCommsBuf asynchronously
+	*/
+	virtual void StartRequest(CCommsBufAsyncRequest& aRequest) =0;
+
+	/**
+	Cance the request to allocate a RCommsBuf asynchronously
+	*/
+	virtual void CancelRequest(CCommsBufAsyncRequest& aRequest) =0;
+
+	/**
+	Set the conext. In the case of system shared buffer manager this function is not having any implmentation
+	as the context will be set by the RCommsBufPond. For mbufmgr which is another DLL needs
+	to set the context for the usage of global timers etc...
+	*/
+	virtual void SetContext() =0;
+	
+	virtual void Release(RLibrary& aLib) =0;
+
+	virtual MCommsBufPondDbg& CommsBufPondDbg() =0;
+	
+	};
+
+#endif // __COMMSBUFPONDINTF_H__