// Copyright (c) 1998-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of the License "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:

// bootldr\inc\unzip.h

// 

//

#ifndef __UNZIP_H__

#define __UNZIP_H__

#include <e32cmn.h>

#include <f32file.h>

#ifdef __KERNEL_MODE__

#define	MALLOC(x)				Kern::Alloc(x)

#define	FREE(x)					Kern::Free(x)

#define WAIT_FOR_ANY_REQUEST()	Kern::WaitForAnyRequest()

#else

#include <e32std.h>

#define	MALLOC(x)				User::Alloc(x)

#define	FREE(x)					User::Free(x)

#define WAIT_FOR_ANY_REQUEST()	User::WaitForAnyRequest()

#define	WAIT_FOR_REQUEST(x)		User::WaitForRequest(x)

#define DELAY(x)				User::After(x)

#endif

const TInt KZipLocalHeaderLen=30;

const TInt KZipExtHeaderLen=16;

const TUint KZipSignature=0x04034b50u;

const TInt KZipWindowSize=0x8000;

class TZipInfo

	{

public:

	TInt iFlags;

	TInt iMethod;

	TUint iCrc;

	TInt iCompressedSize;

	TInt iUncompressedSize;

	TInt iFileNameLength;

	TInt iExtraLength;

	TInt iNameOffset;

	TInt iDataOffset;

	TBuf<128> iName;

	TUint iInBufSize;				// must be a power of 2

	volatile TUint iFileBufW;

	volatile TUint iFileBufR;

	TUint iFileBufSize;				// must be a power of 2 and a multiple of iInBufSize

	TUint8* iFileBuf;

	TRequestStatus iProcessedHeader;

	volatile TInt iHeaderDone;

	TUint8* iOutBuf;

	TInt iRemain;

	TInt iThreadHandle;

	TRequestStatus iThreadStatus;

	};

GLREF_C void AcceptUnzippedBlock(TZipInfo& aInfo, TUint8*& aOutPtr, TInt aError);

GLREF_C TInt InitInfo(TZipInfo& a);

GLREF_C TInt UnzipThread(TAny* aInfo);

GLREF_C TInt ReadBlockToBuffer(TZipInfo& a, RFile &aBootFile);

GLREF_C TInt ReadInputData(TUint8* aDest, TInt& aLength);

GLREF_C TInt UnzipComplete(TZipInfo& a, TUint8* aOutPtr, TInt aError);

#endif