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

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of the License "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 // bootldr\inc\unzip.h

    15 // 

    16 //

    17 

    18 #ifndef __UNZIP_H__

    19 #define __UNZIP_H__

    20 #include <e32cmn.h>

    21 #include <f32file.h>

    22 

    23 #ifdef __KERNEL_MODE__

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

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

    26 #define WAIT_FOR_ANY_REQUEST()	Kern::WaitForAnyRequest()

    27 #else

    28 #include <e32std.h>

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

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

    31 #define WAIT_FOR_ANY_REQUEST()	User::WaitForAnyRequest()

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

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

    34 #endif

    35 

    36 const TInt KZipLocalHeaderLen=30;

    37 const TInt KZipExtHeaderLen=16;

    38 const TUint KZipSignature=0x04034b50u;

    39 const TInt KZipWindowSize=0x8000;

    40 

    41 class TZipInfo

    42 	{

    43 public:

    44 	TInt iFlags;

    45 	TInt iMethod;

    46 	TUint iCrc;

    47 	TInt iCompressedSize;

    48 	TInt iUncompressedSize;

    49 	TInt iFileNameLength;

    50 	TInt iExtraLength;

    51 	TInt iNameOffset;

    52 	TInt iDataOffset;

    53 	TBuf<128> iName;

    54 	TUint iInBufSize;				// must be a power of 2

    55 	volatile TUint iFileBufW;

    56 	volatile TUint iFileBufR;

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

    58 	TUint8* iFileBuf;

    59 	TRequestStatus iProcessedHeader;

    60 	volatile TInt iHeaderDone;

    61 	TUint8* iOutBuf;

    62 	TInt iRemain;

    63 	TInt iThreadHandle;

    64 	TRequestStatus iThreadStatus;

    65 	};

    66 

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

    68 GLREF_C TInt InitInfo(TZipInfo& a);

    69 GLREF_C TInt UnzipThread(TAny* aInfo);

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

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

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

    73 #endif