MetadataRecover Class Reference

Class to parse persistent dynamic metadata redo log, store and merge them and apply them to in-memory table objects finally. More...

#include <log0recv.h>

Public Member Functions
	MetadataRecover () 1=default
	Default constructor. More...
	~MetadataRecover ()
	Destructor. More...
const byte *	parseMetadataLog (table_id_t id, uint64_t version, const byte *ptr, const byte *end)
	Parse a dynamic metadata redo log of a table and store the metadata locally. More...
void	store ()
	Store the collected persistent dynamic metadata to mysql.innodb_dynamic_metadata. More...
bool	empty () const
	If there is any metadata to be applied. More...

Private Types
using	PersistentTables = std::map< table_id_t, PersistentTableMetadata *, std::less< table_id_t >, ut::allocator< std::pair< const table_id_t, PersistentTableMetadata * > > >

Private Member Functions
PersistentTableMetadata *	getMetadata (table_id_t id)
	Get the dynamic metadata of a specified table, create a new one if not exist. More...

Private Attributes
PersistentTables	m_tables
	Map used to store and merge persistent dynamic metadata. More...

Detailed Description

Class to parse persistent dynamic metadata redo log, store and merge them and apply them to in-memory table objects finally.

Member Typedef Documentation

PersistentTables

using MetadataRecover::PersistentTables = std::map< table_id_t, PersistentTableMetadata *, std::less<table_id_t>, ut::allocator<std::pair<const table_id_t, PersistentTableMetadata *> >>

private

Constructor & Destructor Documentation

MetadataRecover()

MetadataRecover::MetadataRecover ( )

default

Default constructor.

~MetadataRecover()

MetadataRecover::~MetadataRecover

(

)

Destructor.

Member Function Documentation

empty()

bool MetadataRecover::empty ( ) const

inline

If there is any metadata to be applied.

Returns

true if any metadata to be applied, otherwise false

getMetadata()

PersistentTableMetadata * MetadataRecover::getMetadata ( table_id_t  id )

private

Get the dynamic metadata of a specified table, create a new one if not exist.

Parameters

[in]

id

table id

Returns

the metadata of the specified table

parseMetadataLog()

const byte * MetadataRecover::parseMetadataLog	(	table_id_t	id,
		uint64_t	version,
		const byte *	ptr,
		const byte *	end
	)

Parse a dynamic metadata redo log of a table and store the metadata locally.

Parameters

[in]	id	table id
[in]	version	table dynamic metadata version
[in]	ptr	redo log start
[in]	end	end of redo log

Return values

ptr	to next redo log record, nullptr if this log record was truncated

store()

void MetadataRecover::store

(

)

Store the collected persistent dynamic metadata to mysql.innodb_dynamic_metadata.

Member Data Documentation

m_tables

PersistentTables MetadataRecover::m_tables

private

Map used to store and merge persistent dynamic metadata.

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

• storage/innobase/include/log0recv.h
• storage/innobase/log/log0recv.cc