// Copyright (c) 1997-2009 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

*/

#if !defined(__MBufAsyncRequest_h__)

#define __MBufAsyncRequest_h__

#define ALIGN_MASK    0x03

#define ALIGN_UP(n)   (((n)+(ALIGN_MASK)) & ~ALIGN_MASK)

#define ALIGN_DOWN(n) ((n) & ~ALIGN_MASK)

#define IS_ALIGNED(p) ((((TUint32)(p)) & ALIGN_MASK)==0)

#include <comms-infras/commsbufasyncrequest.h>

class CCommsBufAsyncRequest;

#ifndef __KERNEL_MODE__

class CMBufAsyncReq;

class RMBufAsyncRequest : public RCommsBufAsyncRequest

/**

ASYNC ALLOCATOR SUPPORT

@publishedPartner

@released

*/

	{

	friend class CMBufManager;	// for access to iLink

public:

	IMPORT_C RMBufAsyncRequest();

	IMPORT_C ~RMBufAsyncRequest();

	IMPORT_C void Alloc(RMBufChain& aChain, TInt aLength, TRequestStatus& aStatus);

	IMPORT_C void Cancel();

	IMPORT_C RMBufAsyncRequest(const RMBufAsyncRequest& aObj);

	IMPORT_C RMBufAsyncRequest& operator=(const RMBufAsyncRequest& aRhs);

protected:

	IMPORT_C void Complete(TInt aCode);

	IMPORT_C TInt* Length();

	IMPORT_C RMBufQ* MBufQ();

	IMPORT_C RMBufChain* MBufChain();

	IMPORT_C TRequestStatus* RequestStatusPtr();

	IMPORT_C RThread* Thread();

	IMPORT_C TDblQueLink* DblQueLink();

	};

#endif // __KERNEL_MODE__

#endif // __MBufAsyncRequest_h__