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TObexRFileBackedBuffer Class Reference

class TObexRFileBackedBuffer : public TObexBufferingDetails

Provides alternate behaviour for a CObexBufObject , allowing use of a file to hold the object in its entirety. Writes to this object are buffered through the supplied CBufBase derived object, which is never enlarged. Once it is full, the data is flushed to the file.

Inherits from

TObexRFileBackedBuffer
- TObexBufferingDetails

Public Member Functions
	TObexRFileBackedBuffer ( CBufBase &, RFile , CObexBufObject::TFileBuffering )
RFile	File ()
CObexBufObject::TFileBuffering	Strategy ()

Inherited Functions
	TObexBufferingDetails::Buffer()
	TObexBufferingDetails::TObexBufferingDetails(CBufBase &)
	TObexBufferingDetails::TObexBufferingDetails(TVersion,CBufBase *)
	TObexBufferingDetails::Version()

Inherited Enumerations
	TObexBufferingDetails:TVersion

Private Attributes
CObexBufObject::TFileBuffering	iBufferingStrategy
RFile	iFile
TUint32	iPadding1
TUint32	iPadding2

Constructor & Destructor Documentation

TObexRFileBackedBuffer(CBufBase &, RFile, CObexBufObject::TFileBuffering)

IMPORT_C	TObexRFileBackedBuffer	(	CBufBase &	aBuffer,
			RFile	aFile,
			CObexBufObject::TFileBuffering	aBufferingStrategy
		)

Build a variant of TObexBufferingDetails which instructs the CObexBufObject to use a file as the main data store, buffering writes to this in chunks. Writes are buffered into the supplied CBufBase derived object, which is not resized. Once it is full, the data contained is written to file. Double buffering can be specified by setting aBufferingStrategy appropriately. If the file is opened in read only mode, attempts to store data in this object will cause an Obex error to be signalled in response to the Obex packet which body data.

Parameters

CBufBase & aBuffer	The buffer to use as a temporary store. This is ignored when reading from the file.
RFile aFile	An RFile object pointing to the file, opened in an appropriate access mode.Note, Obex is responsible for closing the file, and a panic will result if an attempt is made to close the file from outside of Obex.
CObexBufObject::TFileBuffering aBufferingStrategy	Use double or single buffering.