dd::upgrade_57::Upgrade_status Class Reference

Class to manage a temporary file to maintain the progress of the upgrade. More...

#include <upgrade.h>

Public Types
enum class	enum_stage {   NONE , STARTED , DICT_SPACE_CREATED , DICT_TABLES_CREATED ,   DICTIONARY_CREATED , USER_TABLE_UPGRADED , SDI_INFO_UPDATED }

Public Member Functions
	Upgrade_status ()
bool	exists ()
	Check if status file exists. More...
bool	create ()
	Create status file. More...
enum_stage	get ()
	Get status from file. More...
bool	update (enum_stage status)
	Update upgrade status. More...
bool	remove ()
	Remove upgrade status file. More...

Private Member Functions
bool	open (int flags)
enum_stage	read ()
bool	write (enum_stage status)
bool	close ()

Private Attributes
FILE *	m_file
const String_type	m_filename

Detailed Description

Class to manage a temporary file to maintain the progress of the upgrade.

This file will help in error handling for crashes during upgrade. After upgrade is successful, this file will be deleted.

Member Enumeration Documentation

enum_stage

enum class dd::upgrade_57::Upgrade_status::enum_stage

strong

Enumerator
NONE
STARTED
DICT_SPACE_CREATED
DICT_TABLES_CREATED
DICTIONARY_CREATED
USER_TABLE_UPGRADED
SDI_INFO_UPDATED

Constructor & Destructor Documentation

Upgrade_status()

dd::upgrade_57::Upgrade_status::Upgrade_status

(

)

Member Function Documentation

close()

bool dd::upgrade_57::Upgrade_status::close ( )

private

create()

bool dd::upgrade_57::Upgrade_status::create

(

)

Create status file.

Returns

false on success, else true.

exists()

bool dd::upgrade_57::Upgrade_status::exists

(

)

Check if status file exists.

Returns

true if exists, else false.

get()

Upgrade_status::enum_stage dd::upgrade_57::Upgrade_status::get

(

)

Get status from file.

Returns

enum_stage.

open()

bool dd::upgrade_57::Upgrade_status::open ( int  flags )

private

read()

Upgrade_status::enum_stage dd::upgrade_57::Upgrade_status::read ( )

private

remove()

bool dd::upgrade_57::Upgrade_status::remove

(

)

Remove upgrade status file.

Returns

false on success, else true.

update()

bool dd::upgrade_57::Upgrade_status::update

(

Upgrade_status::enum_stage

stage

)

Update upgrade status.

Returns

false on success, else true.

write()

bool dd::upgrade_57::Upgrade_status::write ( Upgrade_status::enum_stage  stage )

private

Member Data Documentation

m_file

FILE* dd::upgrade_57::Upgrade_status::m_file

private

m_filename

const String_type dd::upgrade_57::Upgrade_status::m_filename

private

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

• sql/dd/upgrade_57/upgrade.h
• sql/dd/upgrade_57/upgrade.cc