// 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)

#ifndef __KERNEL_MODE__

class CMBufAsyncReq;

class RMBufAsyncRequest

/**

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();

protected:

	void Complete(TInt aCode);

protected:

	TInt iLength;

	RMBufQ iMBufs;

	RMBufChain* iChain;

	TRequestStatus* iStatusPtr;

	RThread iThread;

	TDblQueLink iLink;

private:

	TUint iLogger; //alternative for __FLOG_DECLARATION_MEMBER

	};

#endif // __KERNEL_MODE__

#endif // __MBufAsyncRequest_h__