ibt::Tablespace Class Reference

Session Temporary tablespace. More...

#include <srv0tmp.h>

Public Member Functions
	Tablespace ()
	Session Temporary tablespace. More...
	~Tablespace ()
dberr_t	create ()
	Create the .IBT file with pattern "temp_*.ibt". More...
bool	close () const
	Close the .ibt file. More...
bool	truncate ()
	Truncate the tablespace. More...
bool	operator== (const Tablespace &other)
	comparator for two tablespace objects More...
space_id_t	space_id () const
void	set_thread_id_and_purpose (my_thread_id thread_id, enum tbsp_purpose purpose)
	Set the thread id of the thread and the purpose of using the tablespace. More...
void	reset_thread_id_and_purpose ()
	Reset the thread id while returning the tablespace to the pool. More...
my_thread_id	thread_id () const
enum tbsp_purpose	purpose () const
std::string	path () const

Private Member Functions
uint32_t	file_id () const
	The id used for name on disk temp_1.ibt, temp_2.ibt, etc. More...
std::string	file_name () const

Private Attributes
const space_id_t	m_space_id
	space_id of the current tablespace More...
bool	m_inited
	True only after .ibt file is created. More...
my_thread_id	m_thread_id
	Tablespace belongs to this Session id More...
enum tbsp_purpose	m_purpose
	Purpose for this tablespace. More...

Static Private Attributes
static space_id_t	m_last_used_space_id = dict_sys_t::s_min_temp_space_id
	Next available space_id for tablespace. More...

Detailed Description

Session Temporary tablespace.

Constructor & Destructor Documentation

Tablespace()

Tablespace::Tablespace

(

)

Session Temporary tablespace.

~Tablespace()

Tablespace::~Tablespace

(

)

Member Function Documentation

close()

bool Tablespace::close

(

void

)

const

Close the .ibt file.

Doesn't delete the tablespace

Returns

true on success, false on failure

create()

dberr_t Tablespace::create

(

)

Create the .IBT file with pattern "temp_*.ibt".

Returns

DB_SUCCESS on success

file_id()

uint32_t Tablespace::file_id ( ) const

private

The id used for name on disk temp_1.ibt, temp_2.ibt, etc.

Returns

the offset based on s_min_temp_space_id. The minimum offset is 1

file_name()

std::string Tablespace::file_name ( ) const

private

Returns

the file_name only excluding the path

operator==()

bool ibt::Tablespace::operator== ( const Tablespace &  other )

inline

comparator for two tablespace objects

Returns

true if space_ids are same, else false

path()

std::string Tablespace::path

(

)

const

Returns

complete path including filename

purpose()

enum tbsp_purpose ibt::Tablespace::purpose ( ) const

inline

Returns

purpose for which the tablespace is being used

reset_thread_id_and_purpose()

void ibt::Tablespace::reset_thread_id_and_purpose ( )

inline

Reset the thread id while returning the tablespace to the pool.

set_thread_id_and_purpose()

void ibt::Tablespace::set_thread_id_and_purpose ( my_thread_id  thread_id, enum tbsp_purpose  purpose  )

inline

Set the thread id of the thread and the purpose of using the tablespace.

Parameters

[in]	thread_id	thread id of the thread requesting the tablespace
[in]	purpose	purpose for requesting the tablespace

space_id()

space_id_t ibt::Tablespace::space_id ( ) const

inline

Returns

Return the space_id of the tablespace

thread_id()

my_thread_id ibt::Tablespace::thread_id ( ) const

inline

Returns

thread id of the thread using the tablespace

truncate()

bool Tablespace::truncate

(

void

)

Truncate the tablespace.

Returns

true on success, false on failure

Member Data Documentation

m_inited

bool ibt::Tablespace::m_inited

private

True only after .ibt file is created.

m_last_used_space_id

space_id_t Tablespace::m_last_used_space_id = dict_sys_t::s_min_temp_space_id

staticprivate

Next available space_id for tablespace.

Space_ids for Session temporary tablespace.

These are hardcoded space_ids at higher range

The available range is from dict_sys_t::s_min_temp_space_id to dict_sys_t::s_max_temp_space_id. Total 400K space_ids are reserved for session temporary tablespaces.

m_purpose

enum tbsp_purpose ibt::Tablespace::m_purpose

private

Purpose for this tablespace.

m_space_id

const space_id_t ibt::Tablespace::m_space_id

private

space_id of the current tablespace

m_thread_id

my_thread_id ibt::Tablespace::m_thread_id

private

Tablespace belongs to this Session id

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

• storage/innobase/include/srv0tmp.h
• storage/innobase/srv/srv0tmp.cc