Fil_page_header Struct Reference

A wrapper class to help print and inspect the file page header. More...

#include <fil0types.h>

Public Member Functions
	Fil_page_header (const byte *frame)
	The constructor that takes a pointer to page header as argument. More...
space_id_t	get_space_id () const noexcept
	Get the space id from the page header. More...
page_no_t	get_page_no () const noexcept
	Get the page number from the page header. More...
page_no_t	get_page_prev () const noexcept
	Get the FIL_PAGE_PREV header value. More...
page_no_t	get_page_next () const noexcept
	Get the FIL_PAGE_NEXT header value. More...
uint16_t	get_page_type () const noexcept
	Get the page type from the page header. More...
std::ostream &	print (std::ostream &out) const noexcept
	Print the page header to the given output stream. More...

Private Attributes
const byte *	m_frame {}
	Pointer to the page header. More...

Detailed Description

A wrapper class to help print and inspect the file page header.

Constructor & Destructor Documentation

Fil_page_header()

Fil_page_header::Fil_page_header ( const byte *  frame )

inlineexplicit

The constructor that takes a pointer to page header as argument.

Parameters

[in]

frame

the pointer to the page header.

Member Function Documentation

get_page_next()

page_no_t Fil_page_header::get_page_next ( ) const

noexcept

Get the FIL_PAGE_NEXT header value.

Returns

the next page number.

get_page_no()

page_no_t Fil_page_header::get_page_no ( ) const

noexcept

Get the page number from the page header.

Returns

the page number.

get_page_prev()

page_no_t Fil_page_header::get_page_prev ( ) const

noexcept

Get the FIL_PAGE_PREV header value.

Returns

the previous page number.

get_page_type()

uint16_t Fil_page_header::get_page_type ( ) const

noexcept

Get the page type from the page header.

Returns

the page type.

get_space_id()

space_id_t Fil_page_header::get_space_id ( ) const

noexcept

Get the space id from the page header.

Returns

the space identifier.

print()

std::ostream & Fil_page_header::print ( std::ostream &  out ) const

noexcept

Print the page header to the given output stream.

Parameters

[in]

out

the output stream.

Returns

the output stream.

Member Data Documentation

m_frame

const byte* Fil_page_header::m_frame {}

private

Pointer to the page header.

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

• storage/innobase/include/fil0types.h
• storage/innobase/fil/fil0fil.cc