CEZFileBufferManager Class Reference

#include <ezfilebuffer.h>

Link against: ezlib.lib

class CEZFileBufferManager : public CBase, public MEZBufferManager

Inherits from

CEZFileBufferManager
- CBase
- MEZBufferManager

Protected Attributes
TInt	iBufferSize
TUint8 *	iInputBuffer
TPtr8	iInputDescriptor
RFile &	iInputFile
TUint8 *	iOutputBuffer
TPtr8	iOutputDescriptor
RFile &	iOutputFile

Public Member Enumerations
enum	anonymous { EBadInitialization }

Public Member Functions
	~CEZFileBufferManager()
virtual void	FinalizeL(CEZZStream &)
virtual void	InitializeL(CEZZStream &)
virtual void	NeedInputL(CEZZStream &)
virtual void	NeedOutputL(CEZZStream &)
IMPORT_C CEZFileBufferManager *	NewL(RFile &, RFile &, TInt)
IMPORT_C CEZFileBufferManager *	NewLC(RFile &, RFile &, TInt)

Protected Member Functions
	CEZFileBufferManager(RFile &, RFile &)
void	ConstructL(TInt)

Inherited Functions
	CBase::CBase()
	CBase::Delete(CBase *)
	CBase::Extension_(TUint,TAny &,TAny )
	CBase::operator new(TUint)
	CBase::operator new(TUint,TAny *)
	CBase::operator new(TUint,TLeave)
	CBase::operator new(TUint,TLeave,TUint)
	CBase::operator new(TUint,TUint)
	CBase::~CBase()

Detailed Description

Concrete class to manage the input and output buffers for compression and de-compression

Member Attribute Documentation

iBufferSize

TInt

iBufferSize

[protected]

iInputBuffer

TUint8 *

iInputBuffer

[protected]

iInputDescriptor

TPtr8

iInputDescriptor

[protected]

iInputFile

RFile &

iInputFile

[protected]

iOutputBuffer

TUint8 *

iOutputBuffer

[protected]

iOutputDescriptor

TPtr8

iOutputDescriptor

[protected]

iOutputFile

RFile &

iOutputFile

[protected]

Member Enumeration Documentation

Enum anonymous

Enumerator	Value	Description
EBadInitialization	1

Constructor & Destructor Documentation

CEZFileBufferManager ( RFile &, RFile & )

CEZFileBufferManager	(	RFile &	aInput,
		RFile &	aOutput
	)	[protected]

~CEZFileBufferManager ( )

~CEZFileBufferManager

(

)

Member Function Documentation

ConstructL ( TInt )

void

ConstructL

(

TInt

aBufferSize

)

[protected]

FinalizeL ( CEZZStream & )

void

FinalizeL

(

CEZZStream &

aZStream

)

[virtual]

Reimplemented from MEZBufferManager::FinalizeL(CEZZStream &)

Finish writing to the stream

Parameters
aZStream	the stream to complete writing to

InitializeL ( CEZZStream & )

void

InitializeL

(

CEZZStream &

aZStream

)

[virtual]

Reimplemented from MEZBufferManager::InitializeL(CEZZStream &)

Initialise the stream with input and output buffers and starts reading

Parameters
aZStream	the stream to initialise

NeedInputL ( CEZZStream & )

void

NeedInputL

(

CEZZStream &

aZStream

)

[virtual]

Reimplemented from MEZBufferManager::NeedInputL(CEZZStream &)

Set the stream's input buffer and starts reading

Parameters
aZStream	the steam whose input buffer to set

NeedOutputL ( CEZZStream & )

void

NeedOutputL

(

CEZZStream &

aZStream

)

[virtual]

Reimplemented from MEZBufferManager::NeedOutputL(CEZZStream &)

Set the stream's output buffer and start writing

Parameters
aZStream	the steam whose output buffer to set

NewL ( RFile &, RFile &, TInt )

IMPORT_C CEZFileBufferManager *	NewL	(	RFile &	aInput,
			RFile &	aOutput,
			TInt	aBufferSize = 0x8000
		)	[static]

Creates a new CEZFileBufferManager object

Parameters
aInput	the input file
aOutput	the output file
aBufferSize	the required size of the buffers

Return Value: the new CEZFileBufferManager object

NewLC ( RFile &, RFile &, TInt )

IMPORT_C CEZFileBufferManager *	NewLC	(	RFile &	aInput,
			RFile &	aOutput,
			TInt	aBufferSize = 0x8000
		)	[static]

Creates a new CEZFileBufferManager object and leave it on the CleanupStack

Parameters
aInput	the input file
aOutput	the output file
aBufferSize	the required size of the buffers

Return Value: the new CEZFileBufferManager object, on the CleanupStack