Buffer where the data can be added to both the beginning and the end of the buffer. More...

Inheritance diagram for MBufferBidirectional:

Public Member Functions
	MBufferBidirectional ()
	Construct an empty bidirectional buffer. More...

	~MBufferBidirectional ()
	Attention, the destructor is not virtual!

const char *	GetTotalPtr () const
	Raw pointer to the whole buffer data. More...

unsigned	GetTotalSize () const
	Size of the whole buffer data. More...

unsigned	GetHeaderSize () const
	Size of the header part of the buffer. More...

char *	GetBodyPtr ()
	Raw pointer to the whole body part of the data. More...

const char *	GetBodyPtr () const
	Raw constant pointer to the whole body part of the data. More...

unsigned	GetBodySize () const
	Size of the body part of the buffer. More...

void	ClearWithReserve (unsigned headerSize, unsigned totalCapacity)
	Clear the data, but keep reserved the byte space. More...

void	Assign (const MByteString &data)
	Assign the given data to the body, and clear the header. More...

void	Assign (const char *buff, unsigned size)
	Assign the given pointer and size to the body, and clear the header. More...

void	Prepend (char c)
	Prepend a character at the header of the bidirectional buffer. More...

void	Prepend (const MByteString &data)
	Prepend bytes at the header of the bidirectional buffer. More...

void	Prepend (const char *buff, unsigned size)
	Prepend bytes at the header of the bidirectional buffer. More...

void	PrependIsoLength (unsigned len)
	Prepend ISO 8825 length to the header of the bidirectional buffer. More...

void	PrependUidIfPresent (char tag, const MByteString &uid)
	Prepend ISO 8825 UID to the header of this buffer, if the uid is given. More...

void	PrependUnsigned (char tag, unsigned val)
	Prepend ISO 8825 unsigned value to the header of this buffer. More...

Public Member Functions inherited from MBuffer
	MBuffer ()
	Constructor of an empty unallocated buffer. More...

	~MBuffer ()
	Attention, the destructor is not virtual.

MByteString &	AccessAllBytes ()
	Access all bytes in the buffer.

const MByteString &	AccessAllBytes () const
	Constant access all bytes in the buffer.

void	Resize (unsigned size)
	Resize buffer. More...

void	Reserve (unsigned capacity)
	Reserve the given number of bytes in the whole buffer. More...

void	Clear ()
	Make buffer size equal to zero.

void	Assign (unsigned size, char c)
	Assign the whole buffer with the given character of the given length. More...

void	Assign (const MByteString &data)
	Assign the whole buffer with the given data. More...

void	Assign (const char *buff, unsigned size)
	Assign the whole buffer with the given data. More...

void	Append (char c)
	Append a character or byte to the buffer. More...

void	Append (const MByteString &data)
	Append a chunk to the existing buffer. More...

void	Append (const char *buff, unsigned size)
	Append a chunk determined by the pointer and size to the existing buffer. More...

void	AppendIsoLength (unsigned len)
	Append ISO 8825 length BER representation to this buffer. More...

void	AppendUidIfPresent (char tag, const MByteString &uid)
	Append ISO 8825 UID to this buffer, if the uid is given. More...

void	AppendUnsigned (char tag, unsigned val)
	Append ISO 8825 unsigned value to this buffer. More...

char *	GetTotalPtr ()
	Raw pointer to the whole buffer data. More...

const char *	GetTotalPtr () const
	Constant raw pointer to the whole buffer data. More...

unsigned	GetTotalSize () const
	Size of the whole buffer. More...

Additional Inherited Members
Protected Attributes inherited from MBuffer
MByteString	m_bytes
	Buffer internal holder.

Detailed Description

Buffer where the data can be added to both the beginning and the end of the buffer.

The left part of the bidirectional buffer is the header, it is prepended. The right part of the bidirectional buffer is the body, it is appended.

The internal implementation of this class is subject to change.

Constructor & Destructor Documentation

MBufferBidirectional::MBufferBidirectional ( )

inline

Construct an empty bidirectional buffer.

No preallocation is made.

Member Function Documentation

void MBufferBidirectional::Assign ( const MByteString & data )

Assign the given data to the body, and clear the header.

The data will be assigned to the right of the bidirectional buffer.

Parameters

data	Bytes that will comprise the body of the buffer.

void MBufferBidirectional::Assign	(	const char *	buff,
		unsigned	size
	)

Assign the given pointer and size to the body, and clear the header.

The data will be assigned to the right of the bidirectional buffer.

Parameters

buff	Byte pointer that will comprise the body of the buffer.
size	Size of the data pointed by buff.

void MBufferBidirectional::ClearWithReserve	(	unsigned	headerSize,
		unsigned	totalCapacity
	)

Clear the data, but keep reserved the byte space.

Parameters

headerSize	How many bytes to reserve for the header.
totalCapacity	Total capacity, should not be smaller than the header size.

char* MBufferBidirectional::GetBodyPtr ( )

inline

Raw pointer to the whole body part of the data.

See also: GetBodySize Size of this pointer data.

const char* MBufferBidirectional::GetBodyPtr ( ) const

inline

Raw constant pointer to the whole body part of the data.

See also: GetBodySize Size of this pointer data.

unsigned MBufferBidirectional::GetBodySize ( ) const

inline

Size of the body part of the buffer.

Header is at the beginning of the total data.

See also: GetBodyPtr for the pointer to body data.

unsigned MBufferBidirectional::GetHeaderSize ( ) const

inline

Size of the header part of the buffer.

Header is at the beginning of the total data.

See also: GetTotalPtr for the pointer to header data, same as total data pointer.

const char* MBufferBidirectional::GetTotalPtr ( ) const

inline

Raw pointer to the whole buffer data.

Care must be taken as the base class has nonvirtual method with the same name. It is always assumed that this class is manipulated through its nongeneric instance.

See also: GetTotalSize Size of this pointer data.

unsigned MBufferBidirectional::GetTotalSize ( ) const

inline

Size of the whole buffer data.

Care must be taken as the base class has nonvirtual method with the same name. It is always assumed that this class is manipulated through its nongeneric instance.

See also: GetTotalPtr for the pointer to data.; GetHeaderSize Size of the header part of the total buffer.

void MBufferBidirectional::Prepend ( char c )

Prepend a character at the header of the bidirectional buffer.

Parameters

c	Character or byte to prepend.

See also: MBuffer::Append(char) Append a byte or character to the body, parent call.

void MBufferBidirectional::Prepend ( const MByteString & data )

Prepend bytes at the header of the bidirectional buffer.

Parameters

data	Bytes to be prepended to the left of the buffer.

See also: MBuffer::Append(const MByteString&) Append data to the body, parent call.

void MBufferBidirectional::Prepend	(	const char *	buff,
		unsigned	size
	)

Prepend bytes at the header of the bidirectional buffer.

Parameters

buff	Pointer to bytes that will be prepended to the left of the buffer.
size	Size of the data at the pointer.

See also: MBuffer::Append(const char*, unsigned) Append data to the body, parent call.

void MBufferBidirectional::PrependIsoLength ( unsigned len )

Prepend ISO 8825 length to the header of the bidirectional buffer.

Parameters

len	Value of length.

See also: MBuffer::AppendIsoLength Append ISO length to the body, parent call.

void MBufferBidirectional::PrependUidIfPresent	(	char	tag,
		const MByteString &	uid
	)

Prepend ISO 8825 UID to the header of this buffer, if the uid is given.

If the given uid is an empty string nothing is done. Otherwise, added are:

Tag, one byte.
Data length and OID type, relative or absolute, all according to ISO 8825 encoding.
Uid Raw byte data, added as is (no conversion of any type is done).

Parameters

tag	BER object tag of the UID.
uid	Chunk of raw bytes. If not empty, added together with the properly formed header.

See also: MBuffer::AppendUidIfPresent Append uid to the body, parent call.

void MBufferBidirectional::PrependUnsigned	(	char	tag,
		unsigned	val
	)

Prepend ISO 8825 unsigned value to the header of this buffer.

Added are:

Tag, one byte.
Data length and type, ISO 8825 encoding.
Value Raw byte data, added as is (no conversion of any type is done).

Parameters

tag	BER object tag of the UID.
val	Value to add.

See also: MBuffer::AppendUnsigned Append unsigned value to the body, parent call.

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation