mysql::binlog::event::compression::None_dec Class Reference

Decompressor subclass that only copies input to output without decompressing it. More...

#include <none_dec.h>

Inheritance diagram for mysql::binlog::event::compression::None_dec:

Public Types
using	Char_t = unsigned char
using	Size_t = mysql::containers::buffers::Buffer_view< Char_t >::Size_t
Public Types inherited from mysql::binlog::event::compression::Decompressor
using	Char_t = unsigned char
using	Size_t = mysql::containers::buffers::Buffer_view< Char_t >::Size_t
using	Managed_buffer_t = mysql::containers::buffers::Managed_buffer< Char_t >
using	Grow_constraint_t = mysql::containers::buffers::Grow_constraint

Public Member Functions
	None_dec ()=default
	~None_dec () override=default
	None_dec (const None_dec &)=delete
	None_dec (const None_dec &&)=delete
None_dec &	operator= (const None_dec &)=delete
None_dec &	operator= (const None_dec &&)=delete
Public Member Functions inherited from mysql::binlog::event::compression::Decompressor
	Decompressor ()=default
	Decompressor (const Decompressor &)=delete
	Decompressor (const Decompressor &&)=delete
const Decompressor &	operator= (const Decompressor &)=delete
const Decompressor &	operator= (const Decompressor &&)=delete
virtual	~Decompressor ()=default
type	get_type_code () const
void	reset ()
	Reset the frame. More...
template<class Input_char_t >
void	feed (const Input_char_t *input_data, Size_t input_size)
	Submit data to decompress. More...
Decompress_status	decompress (Managed_buffer_t &out, Size_t output_size)
	Decompress an exact, given number of bytes. More...
std::pair< Decompress_status, Size_t >	decompress (Char_t *out, Size_t output_size)
	Decompress an exact, given number of bytes. More...
Grow_constraint_t	get_grow_constraint_hint () const
	Return a Grow_constraint that may be used with the Managed_buffer storing the output, in order to optimize memory usage for a particular compression algorithm. More...

Static Public Attributes
static constexpr type	type_code = NONE

Private Member Functions
type	do_get_type_code () const override
void	do_reset () override
	Implement do_reset. More...
void	do_feed (const Char_t *input_data, Size_t input_size) override
	Implement feed. More...
std::pair< Decompress_status, Size_t >	do_decompress (Char_t *out, Size_t output_size) override
	Implement decompress. More...

Private Attributes
const Char_t *	m_input_data
	Input data. More...
Size_t	m_input_size
Size_t	m_input_position

Detailed Description

Decompressor subclass that only copies input to output without decompressing it.

Member Typedef Documentation

Char_t

using mysql::binlog::event::compression::Decompressor::Char_t = unsigned char

Size_t

using mysql::binlog::event::compression::Decompressor::Size_t = mysql::containers::buffers::Buffer_view<Char_t>::Size_t

Constructor & Destructor Documentation

None_dec() [1/3]

mysql::binlog::event::compression::None_dec::None_dec ( )

default

~None_dec()

mysql::binlog::event::compression::None_dec::~None_dec ( )

overridedefault

None_dec() [2/3]

mysql::binlog::event::compression::None_dec::None_dec ( const None_dec &  )

delete

None_dec() [3/3]

mysql::binlog::event::compression::None_dec::None_dec ( const None_dec &&  )

delete

Member Function Documentation

do_decompress()

std::pair< Decompress_status, Decompressor::Size_t > mysql::binlog::event::compression::None_dec::do_decompress ( Char_t *  out, Size_t  output_size  )

overrideprivatevirtual

Implement decompress.

This differs from decompress in that it does not have to reset the frame when returning out_of_memory or corrupted; the caller does that.

Implements mysql::binlog::event::compression::Decompressor.

do_feed()

void mysql::binlog::event::compression::None_dec::do_feed ( const Char_t *  input_data, Size_t  input_size  )

overrideprivatevirtual

Implement feed.

Implements mysql::binlog::event::compression::Decompressor.

do_get_type_code()

type mysql::binlog::event::compression::None_dec::do_get_type_code ( ) const

overrideprivatevirtual

Returns

NONE

Implements mysql::binlog::event::compression::Decompressor.

do_reset()

void mysql::binlog::event::compression::None_dec::do_reset ( )

overrideprivatevirtual

Implement do_reset.

Implements mysql::binlog::event::compression::Decompressor.

operator=() [1/2]

None_dec & mysql::binlog::event::compression::None_dec::operator= ( const None_dec &&  )

delete

operator=() [2/2]

None_dec & mysql::binlog::event::compression::None_dec::operator= ( const None_dec &  )

delete

Member Data Documentation

m_input_data

const Char_t* mysql::binlog::event::compression::None_dec::m_input_data

private

Input data.

m_input_position

Size_t mysql::binlog::event::compression::None_dec::m_input_position

private

m_input_size

Size_t mysql::binlog::event::compression::None_dec::m_input_size

private

type_code

constexpr type mysql::binlog::event::compression::None_dec::type_code = NONE

staticconstexpr

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

• libs/mysql/binlog/event/compression/none_dec.h
• libs/mysql/binlog/event/compression/none_dec.cpp