1 // Copyright (c) 2003-2009 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 "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 //

    15 

    16 #include "OldEZFilebuffer.h"

    17 #include "OldEZstream.h"

    18 

    19 using namespace TOLDEZLIB;

    20 

    21 _LIT(KFileBuffer,"FileBuffer");

    22 

    23 void CEZFileBufferManager::ConstructL(TInt aBufferSize)

    24 	{

    25 	__ASSERT_ALWAYS(aBufferSize > 0, User::Panic(KFileBuffer, EBadInitialization));

    26 

    27 	iBufferSize = aBufferSize;

    28 

    29 	iInputBuffer = new (ELeave) TUint8[iBufferSize];

    30 	iOutputBuffer = new (ELeave) TUint8[iBufferSize];

    31 

    32 	iInputDescriptor.Set(iInputBuffer,0,iBufferSize);

    33 	iOutputDescriptor.Set(iOutputBuffer,0,iBufferSize);

    34 	}

    35 

    36 CEZFileBufferManager::~CEZFileBufferManager()

    37 	{

    38 	delete[] iInputBuffer;

    39 	delete[] iOutputBuffer;

    40 	}

    41 

    42 CEZFileBufferManager::CEZFileBufferManager(RFile &aInput, RFile &aOutput) : 

    43 	iInputFile(aInput), iOutputFile(aOutput), iInputDescriptor(NULL,0), iOutputDescriptor(NULL,0)

    44 	{

    45 

    46 	}

    47 

    48 /**

    49 Creates a new CEZFileBufferManager object and leave it on the CleanupStack

    50 

    51 @param aInput the input file

    52 @param aOutput the output file

    53 @param aBufferSize the required size of the buffers

    54 @return the new CEZFileBufferManager object, on the CleanupStack

    55 */

    56 EXPORT_C CEZFileBufferManager* CEZFileBufferManager::NewLC(RFile &aInput, RFile &aOutput, TInt aBufferSize)

    57 	{

    58 	CEZFileBufferManager *fb = new (ELeave) CEZFileBufferManager(aInput,aOutput);

    59 	CleanupStack::PushL(fb);

    60 	fb->ConstructL(aBufferSize);

    61 	return fb;

    62 	}

    63 

    64 /**

    65 Creates a new CEZFileBufferManager object

    66 

    67 @param aInput the input file

    68 @param aOutput the output file

    69 @param aBufferSize the required size of the buffers

    70 @return the new CEZFileBufferManager object

    71 */

    72 EXPORT_C CEZFileBufferManager* CEZFileBufferManager::NewL(RFile &aInput, RFile &aOutput, TInt aBufferSize)

    73 	{

    74 	CEZFileBufferManager *fb = new (ELeave) CEZFileBufferManager(aInput,aOutput);

    75 	CleanupStack::PushL(fb);

    76 	fb->ConstructL(aBufferSize);

    77 	CleanupStack::Pop();

    78 	return fb;

    79 	}

    80 

    81 

    82 void CEZFileBufferManager::InitializeL(CEZZStream &aZStream)

    83 	{

    84 	User::LeaveIfError(iInputFile.Read(iInputDescriptor));

    85 	aZStream.SetInput(iInputDescriptor);

    86 	aZStream.SetOutput(iOutputDescriptor);

    87 	}

    88 

    89 void CEZFileBufferManager::NeedInputL(CEZZStream &aZStream)

    90 	{

    91 	User::LeaveIfError(iInputFile.Read(iInputDescriptor));

    92 	aZStream.SetInput(iInputDescriptor);

    93 	}

    94 

    95 void CEZFileBufferManager::NeedOutputL(CEZZStream &aZStream)

    96 	{

    97 	TPtrC8 od = aZStream.OutputDescriptor();

    98 	User::LeaveIfError(iOutputFile.Write(od));

    99 	aZStream.SetOutput(iOutputDescriptor);

   100 	}

   101 

   102 void CEZFileBufferManager::FinalizeL(CEZZStream &aZStream)

   103 	{

   104 	TPtrC8 od = aZStream.OutputDescriptor();

   105 	User::LeaveIfError(iOutputFile.Write(od));

   106 	}