TagParser::StreamDataBlock Class Reference

The StreamDataBlock class is a reference to a certain data block of a stream. More...

#include <abstractattachment.h>

Inheritance diagram for TagParser::StreamDataBlock:

Collaboration diagram for TagParser::StreamDataBlock:

Public Member Functions
	StreamDataBlock (const std::function< std::istream &()> &stream, uint64_t startOffset=0, std::ios_base::seekdir startDir=std::ios_base::beg, uint64_t endOffset=0, std::ios_base::seekdir endDir=std::ios_base::end)
virtual	~StreamDataBlock ()
	Discards buffered data.
std::istream &	stream () const
	Returns the associated stream.
std::uint64_t	startOffset () const
	Returns the absolute start offset of the data block in the stream.
std::uint64_t	endOffset () const
	Returns the absolute end offset of the data block in the stream.
std::uint64_t	size () const
	Returns the size of the data block.
const std::unique_ptr< char[]> &	buffer () const
	Returns the data buffered via makeBuffer().
void	makeBuffer () const
	Buffers the data block.
void	discardBuffer ()
	Discards buffered data.
void	copyTo (std::ostream &stream) const
	Copies the data to the specified stream.

Protected Member Functions
	StreamDataBlock ()
	Constructs a new StreamDataBlock.

Protected Attributes
std::function< std::istream &()>	m_stream
std::uint64_t	m_startOffset
std::uint64_t	m_endOffset
std::unique_ptr< char[]>	m_buffer

Detailed Description

The StreamDataBlock class is a reference to a certain data block of a stream.

Constructor & Destructor Documentation

StreamDataBlock() [1/2]

TagParser::StreamDataBlock::StreamDataBlock	(	const std::function< std::istream &()> &	stream,
		uint64_t	startOffset = 0,
		std::ios_base::seekdir	startDir = std::ios_base::beg,
		uint64_t	endOffset = 0,
		std::ios_base::seekdir	endDir = std::ios_base::end )

~StreamDataBlock()

TagParser::StreamDataBlock::~StreamDataBlock ( )

virtual

Discards buffered data.

Definition at line 66 of file abstractattachment.cpp.

StreamDataBlock() [2/2]

TagParser::StreamDataBlock::StreamDataBlock ( )

protected

Constructs a new StreamDataBlock.

The derived is responsible for the prober initialization of the object.

Definition at line 30 of file abstractattachment.cpp.

Member Function Documentation

buffer()

const std::unique_ptr< char[]> & TagParser::StreamDataBlock::buffer ( ) const

inline

Returns the data buffered via makeBuffer().

Definition at line 77 of file abstractattachment.h.

copyTo()

void TagParser::StreamDataBlock::copyTo

(

std::ostream &

stream

)

const

Copies the data to the specified stream.

Remarks

Makes use of the buffer allocated with makeBuffer() if this method has been called before.

Definition at line 84 of file abstractattachment.cpp.

discardBuffer()

void TagParser::StreamDataBlock::discardBuffer ( )

inline

Discards buffered data.

Definition at line 85 of file abstractattachment.h.

endOffset()

std::uint64_t TagParser::StreamDataBlock::endOffset ( ) const

inline

Returns the absolute end offset of the data block in the stream.

Definition at line 61 of file abstractattachment.h.

makeBuffer()

void TagParser::StreamDataBlock::makeBuffer

(

)

const

Buffers the data block.

Buffered data can be accessed via buffer().

Definition at line 73 of file abstractattachment.cpp.

size()

std::uint64_t TagParser::StreamDataBlock::size ( ) const

inline

Returns the size of the data block.

Definition at line 69 of file abstractattachment.h.

startOffset()

std::uint64_t TagParser::StreamDataBlock::startOffset ( ) const

inline

Returns the absolute start offset of the data block in the stream.

Definition at line 53 of file abstractattachment.h.

stream()

std::istream & TagParser::StreamDataBlock::stream ( ) const

inline

Returns the associated stream.

Calling this method on invalid objects causes undefined behaviour. See isValid().

Definition at line 45 of file abstractattachment.h.

Member Data Documentation

m_buffer

std::unique_ptr<char[]> TagParser::StreamDataBlock::m_buffer

mutableprotected

Definition at line 37 of file abstractattachment.h.

m_endOffset

std::uint64_t TagParser::StreamDataBlock::m_endOffset

protected

Definition at line 36 of file abstractattachment.h.

m_startOffset

std::uint64_t TagParser::StreamDataBlock::m_startOffset

protected

Definition at line 35 of file abstractattachment.h.

m_stream

std::function<std::istream &()> TagParser::StreamDataBlock::m_stream

protected

Definition at line 34 of file abstractattachment.h.

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The documentation for this class was generated from the following files:

• abstractattachment.h
• abstractattachment.cpp