--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/bluetooth/btstack/linkmgr/hostmbufpool.h	Tue May 11 17:15:36 2010 +0300
@@ -0,0 +1,101 @@
+// Copyright (c) 2006-2010 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 HOSTMBUFPOOL
+#define HOSTMBUFPOOL
+
+#include <e32base.h>
+#include <bttypes.h>
+#include <es_mbuf.h>
+#include <bluetooth/hcicommandqueueclient.h>
+
+#ifdef HOSTCONTROLLER_TO_HOST_FLOW_CONTROL
+
+class MHCICommandQueue;
+
+
+NONSHARABLE_CLASS(CHostMBufPool) 
+	: public CActive
+	, private MHCICommandQueueClient
+	{
+
+	NONSHARABLE_STRUCT(TPoolBuffer)
+		{
+		RMBufChain		iMBufChain;
+		THCIConnHandle	iCurrentHandle;
+		TSglQueLink		iLink;
+		};
+	
+public:
+	static CHostMBufPool* NewL(MHCICommandQueue& aCommandQueue);
+	~CHostMBufPool();
+	
+	RMBufChain TakeBufferL(THCIConnHandle aConnHandle);
+	
+	void InvalidateByConnH(THCIConnHandle aConnHandle);
+	
+private:
+	CHostMBufPool(MHCICommandQueue& aCommandQueue);
+	void ConstructL();
+	
+	void DeletePool(TSglQue<TPoolBuffer>& aPool);
+	void DeleteBuffer(TPoolBuffer*& aBuffer);
+	void AllocNewBuffer(TPoolBuffer& aBuffer);
+	TPoolBuffer* CreatePoolBufferL();
+	void HostNumberOfCompletedPacketsL(THCIConnHandle aConnH, TUint16 aNumPackets);
+	void TryToAllocQueuedBuffer();
+	
+	inline void AddToBufferPool(TPoolBuffer& aBuffer);
+	inline void RemoveFromBufferPool(TPoolBuffer& aBuffer);
+	
+	void Error(TInt aError);
+	
+private: // from CActive
+	void RunL();
+	void DoCancel();
+	TInt RunError(TInt aError);
+	
+private: // from MHCICommandQueueClient
+	void MhcqcCommandEventReceived(const THCIEventBase& aEvent, const CHCICommandBase* aRelatedCommand);
+	void MhcqcCommandErrored(TInt aErrorCode, const CHCICommandBase* aCommand);
+	
+private:
+	MHCICommandQueue& iCmdQ;
+	
+	TSglQue<TPoolBuffer> iBufferPool;
+	TSglQue<TPoolBuffer> iWaitingAllocPool;
+	TPoolBuffer* iBufferBeingAllocd;
+	
+	// We batch up completed packets notifications for a connection handle so that they are 
+	// only sent every 'x' packets OR if we get a packet for a different connection handle.
+	TInt iCurrAckHandle; // current handle of packets being batched for completion
+	TUint iCurrCompletedPackets; // number of packets already completed for current handle
+	
+	RMBufAsyncRequest iMBufRequester;
+	};
+	
+inline void CHostMBufPool::AddToBufferPool(TPoolBuffer& aBuffer)
+	{
+	iBufferPool.AddLast(aBuffer);
+	}
+	
+inline void CHostMBufPool::RemoveFromBufferPool(TPoolBuffer& aBuffer)
+	{
+	iBufferPool.Remove(aBuffer);
+	}
+	
+#endif //HOSTCONTROLLER_TO_HOST_FLOW_CONTROL
+
+#endif // HOSTMBUFPOOL