Arch_Dblwr_Ctx Class Reference

Doublewrite buffer context. More...

#include <arch0recv.h>

Public Member Functions
	Arch_Dblwr_Ctx ()=default
	Constructor: Initialize members. More...
	~Arch_Dblwr_Ctx ()
dberr_t	init (const char *path, const char *base_file, uint num_files, uint64_t file_size)
	Initialize the doublewrite buffer. More...
dberr_t	read_file ()
	Read the doublewrite buffer file. More...
void	validate_and_fill_blocks (size_t num_files)
	Validate the blocks contained in the m_buf buffer and load only the valid buffers into m_blocks. More...
Arch_Dblwr_Blocks	blocks ()
	Get doubewrite buffer blocks. More...
	Arch_Dblwr_Ctx (Arch_Dblwr_Ctx const &)=delete
	Disable copy construction. More...
Arch_Dblwr_Ctx &	operator= (Arch_Dblwr_Ctx const &)=delete
	Disable assignment. More...

Private Attributes
byte *	m_buf {nullptr}
	Buffer to hold the contents of the doublwrite buffer. More...
uint64_t	m_file_size {}
	Total file size of the file which holds the doublewrite buffer. More...
Arch_File_Ctx	m_file_ctx
	Doublewrite buffer file context. More...
Arch_Dblwr_Blocks	m_blocks {}
	List of doublewrite buffer blocks. More...

Detailed Description

Doublewrite buffer context.

Constructor & Destructor Documentation

Arch_Dblwr_Ctx() [1/2]

Arch_Dblwr_Ctx::Arch_Dblwr_Ctx ( )

default

Constructor: Initialize members.

~Arch_Dblwr_Ctx()

Arch_Dblwr_Ctx::~Arch_Dblwr_Ctx ( )

inline

Arch_Dblwr_Ctx() [2/2]

Arch_Dblwr_Ctx::Arch_Dblwr_Ctx ( Arch_Dblwr_Ctx const &  )

delete

Disable copy construction.

Member Function Documentation

blocks()

Arch_Dblwr_Blocks Arch_Dblwr_Ctx::blocks ( )

inline

Get doubewrite buffer blocks.

Returns

doublewrite buffer blocks

init()

dberr_t Arch_Dblwr_Ctx::init	(	const char *	path,
		const char *	base_file,
		uint	num_files,
		uint64_t	file_size
	)

Initialize the doublewrite buffer.

Parameters

[in]	path	path to the file
[in]	base_file	file name prefix
[in]	num_files	initial number of files
[in]	file_size	file size in bytes

Returns

error code.

operator=()

Arch_Dblwr_Ctx & Arch_Dblwr_Ctx::operator= ( Arch_Dblwr_Ctx const &  )

delete

Disable assignment.

read_file()

dberr_t Arch_Dblwr_Ctx::read_file

(

)

Read the doublewrite buffer file.

Returns

error code

validate_and_fill_blocks()

void Arch_Dblwr_Ctx::validate_and_fill_blocks

(

size_t

num_files

)

Validate the blocks contained in the m_buf buffer and load only the valid buffers into m_blocks.

Parameters

[in]

num_files

number of files in the group information required to validate the blocks

Member Data Documentation

m_blocks

Arch_Dblwr_Blocks Arch_Dblwr_Ctx::m_blocks {}

private

List of doublewrite buffer blocks.

m_buf

byte* Arch_Dblwr_Ctx::m_buf {nullptr}

private

Buffer to hold the contents of the doublwrite buffer.

m_file_ctx

Arch_File_Ctx Arch_Dblwr_Ctx::m_file_ctx

private

Doublewrite buffer file context.

m_file_size

uint64_t Arch_Dblwr_Ctx::m_file_size {}

private

Total file size of the file which holds the doublewrite buffer.

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

• storage/innobase/include/arch0recv.h
• storage/innobase/arch/arch0recv.cc