ib::redo::Page_handle_wrapper Class Reference

A convenience wrapper over the Page_handle (where redo log records are applied). More...

#include <log0redo.h>

Public Member Functions
	Page_handle_wrapper (buf_block_t &block)
	Page_handle_wrapper (Page_handle_wrapper &&other) noexcept
	Page_handle_wrapper (const Page_handle_wrapper &)=delete
	~Page_handle_wrapper ()
constexpr buf_block_t &	block () noexcept
constexpr Page_handle &	handle () noexcept
void	update_block ()
	If it is compressed page then update the compressed page metadata in the block. More...

Private Attributes
buf_block_t &	m_block
Page_handle	m_page_handle
bool	m_need_to_update_block {true}

Detailed Description

A convenience wrapper over the Page_handle (where redo log records are applied).

It initializes the page handle from the buffer block and keep them sane. User must update the block after the redo log records are applied on the page handle.

Constructor & Destructor Documentation

Page_handle_wrapper() [1/3]

ib::redo::Page_handle_wrapper::Page_handle_wrapper ( buf_block_t &  block )

explicit

Page_handle_wrapper() [2/3]

ib::redo::Page_handle_wrapper::Page_handle_wrapper ( Page_handle_wrapper &&  other )

inlinenoexcept

Page_handle_wrapper() [3/3]

ib::redo::Page_handle_wrapper::Page_handle_wrapper ( const Page_handle_wrapper &  )

delete

~Page_handle_wrapper()

ib::redo::Page_handle_wrapper::~Page_handle_wrapper ( )

inline

Member Function Documentation

block()

constexpr buf_block_t & ib::redo::Page_handle_wrapper::block ( )

inlineconstexprnoexcept

handle()

constexpr Page_handle & ib::redo::Page_handle_wrapper::handle ( )

inlineconstexprnoexcept

update_block()

void ib::redo::Page_handle_wrapper::update_block

(

)

If it is compressed page then update the compressed page metadata in the block.

Metadata may have changed during applying the log record

Member Data Documentation

m_block

buf_block_t& ib::redo::Page_handle_wrapper::m_block

private

m_need_to_update_block

bool ib::redo::Page_handle_wrapper::m_need_to_update_block {true}

private

m_page_handle

Page_handle ib::redo::Page_handle_wrapper::m_page_handle

private

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

• storage/innobase/include/log0redo.h
• storage/innobase/log/log0redo.cc