Class CEZFileBufferManager

class CEZFileBufferManager : public CBase, public MEZBufferManager;

Description

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

Derivation

• MEZBufferManager - Interface class to manage input and output buffers for compression and de-compression
• CBase - Base class for all classes to be instantiated on the heap

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

Members

Defined in CEZFileBufferManager:
EBadInitialization, FinalizeL(), InitializeL(), NeedInputL(), NeedOutputL(), NewL(), NewLC(), anonymous, iBufferSize, iInputBuffer, iInputDescriptor, iInputFile, iOutputBuffer, iOutputDescriptor, iOutputFile

Inherited from CBase:
Delete(), Extension_(), operator new()

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

Description

Creates a new CEZFileBufferManager object and leave it on the CleanupStack

Parameters

RFile &aInput the input file RFile &aOutput the output file TInt aBufferSize the required size of the buffers

Return value

CEZFileBufferManager * the new CEZFileBufferManager object, on the CleanupStack

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

Description

Creates a new CEZFileBufferManager object

Parameters

RFile &aInput the input file RFile &aOutput the output file TInt aBufferSize the required size of the buffers

Return value

CEZFileBufferManager * the new CEZFileBufferManager object

virtual void InitializeL(CEZZStream &aZStream);

Description

Initialise the stream with input and output buffers and starts reading

Parameters

CEZZStream &aZStream the stream to initialise

virtual void NeedInputL(CEZZStream &aZStream);

Description

Set the stream's input buffer and starts reading

Parameters

CEZZStream &aZStream the steam whose input buffer to set

virtual void NeedOutputL(CEZZStream &aZStream);

Description

Set the stream's output buffer and start writing

Parameters

CEZZStream &aZStream the steam whose output buffer to set

virtual void FinalizeL(CEZZStream &aZStream);

Description

Finish writing to the stream

Parameters

CEZZStream &aZStream the stream to complete writing to

n/a

Description

EBadInitialization

protected: RFile & iInputFile;

Description

protected: RFile & iOutputFile;

Description

protected: TInt iBufferSize;

Description

protected: TUint8 * iInputBuffer;

Description

protected: TUint8 * iOutputBuffer;

Description

protected: TPtr8 iInputDescriptor;

Description

protected: TPtr8 iOutputDescriptor;

Description