#include <mvcc_active_tran.hpp>

Collaboration diagram for mvcc_active_tran:

Public Types
enum	copy_safety { copy_safety::THREAD_SAFE, copy_safety::THREAD_UNSAFE }

Public Member Functions
	mvcc_active_tran ()

	~mvcc_active_tran ()

void	initialize ()

void	finalize ()

void	reset ()

MVCCID	get_bit_area_start_mvccid ()

bool	is_active (MVCCID mvccid) const

void	copy_to (mvcc_active_tran &dest, copy_safety safety) const

mvcc_active_tran &	operator= (const mvcc_active_tran &other)=delete

MVCCID	compute_highest_completed_mvccid () const

MVCCID	compute_lowest_active_mvccid () const

void	set_inactive_mvccid (MVCCID mvccid)

void	reset_start_mvccid (MVCCID mvccid)

void	reset_active_transactions ()

void	check_valid () const

Private Types
using	unit_type = std::uint64_t

Private Member Functions
size_t	get_bit_offset (MVCCID mvccid) const

MVCCID	get_mvccid (size_t bit_offset) const

unit_type *	get_unit_of (size_t bit_offset) const

bool	is_set (size_t bit_offset) const

size_t	get_area_size () const

size_t	get_bit_area_memsize () const

size_t	get_long_tran_memsize () const

void	remove_long_transaction (MVCCID mvccid)

void	add_long_transaction (MVCCID mvccid)

void	ltrim_area (size_t trim_size)

void	set_bitarea_mvccid (MVCCID mvccid)

void	cleanup_migrate_to_long_transations ()

Static Private Member Functions
static size_t	long_tran_max_size ()

static size_t	bit_size_to_unit_size (size_t bit_count)

static size_t	units_to_bits (size_t unit_count)

static size_t	units_to_bytes (size_t unit_count)

static unit_type	get_mask_of (size_t bit_offset)

Private Attributes
unit_type *	m_bit_area

volatile MVCCID	m_bit_area_start_mvccid

volatile size_t	m_bit_area_length

MVCCID *	m_long_tran_mvccids

volatile size_t	m_long_tran_mvccids_length

bool	m_initialized

Static Private Attributes
static const size_t	BITAREA_MAX_SIZE = 500

static const size_t	BYTE_BIT_COUNT = 8

static const size_t	UNIT_BYTE_COUNT = sizeof (unit_type)

static const size_t	UNIT_BIT_COUNT = UNIT_BYTE_COUNT * BYTE_BIT_COUNT

static const size_t	BITAREA_MAX_MEMSIZE = BITAREA_MAX_SIZE * UNIT_BYTE_COUNT

static const size_t	BITAREA_MAX_BITS = BITAREA_MAX_SIZE * UNIT_BIT_COUNT

static const unit_type	ALL_ACTIVE = 0

static const unit_type	ALL_COMMITTED = (unit_type) -1

Detailed Description

Definition at line 31 of file mvcc_active_tran.hpp.

Member Typedef Documentation

using mvcc_active_tran::unit_type = std::uint64_t

private

Definition at line 63 of file mvcc_active_tran.hpp.

Member Enumeration Documentation

enum mvcc_active_tran::copy_safety

strong

Enumerator
THREAD_SAFE
THREAD_UNSAFE

Definition at line 37 of file mvcc_active_tran.hpp.

Constructor & Destructor Documentation

mvcc_active_tran::mvcc_active_tran ( )

Definition at line 29 of file mvcc_active_tran.cpp.

mvcc_active_tran::~mvcc_active_tran ( )

Definition at line 39 of file mvcc_active_tran.cpp.

References m_bit_area, and m_long_tran_mvccids.

Member Function Documentation

void mvcc_active_tran::add_long_transaction ( MVCCID mvccid )

private

Definition at line 376 of file mvcc_active_tran.cpp.

References assert, long_tran_max_size(), m_long_tran_mvccids, and m_long_tran_mvccids_length.

Referenced by cleanup_migrate_to_long_transations().

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size_t mvcc_active_tran::bit_size_to_unit_size ( size_t bit_count )

inlinestaticprivate

Definition at line 104 of file mvcc_active_tran.cpp.

References UNIT_BIT_COUNT.

Referenced by get_area_size().

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void mvcc_active_tran::check_valid ( ) const

Definition at line 524 of file mvcc_active_tran.cpp.

References ALL_ACTIVE, assert, BITAREA_MAX_SIZE, get_mask_of(), get_unit_of(), i, m_bit_area, m_bit_area_length, m_bit_area_start_mvccid, m_long_tran_mvccids, m_long_tran_mvccids_length, MVCC_ID_PRECEDES, and UNIT_BIT_COUNT.

Referenced by mvcctable::build_mvcc_info(), cleanup_migrate_to_long_transations(), copy_to(), remove_long_transaction(), reset(), reset_start_mvccid(), and set_bitarea_mvccid().

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void mvcc_active_tran::cleanup_migrate_to_long_transations ( )

private

Definition at line 460 of file mvcc_active_tran.cpp.

References add_long_transaction(), ALL_COMMITTED, check_valid(), get_area_size(), get_mvccid(), i, ltrim_area(), m_bit_area, and UNIT_BIT_COUNT.

Referenced by set_bitarea_mvccid().

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MVCCID mvcc_active_tran::compute_highest_completed_mvccid ( ) const

Definition at line 170 of file mvcc_active_tran.cpp.

References assert, count_bits(), get_mvccid(), get_unit_of(), m_bit_area, m_bit_area_length, m_bit_area_start_mvccid, MVCCID_FIRST, NULL, UNIT_BIT_COUNT, and units_to_bits().

Referenced by mvcctable::build_mvcc_info().

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MVCCID mvcc_active_tran::compute_lowest_active_mvccid ( ) const

Definition at line 219 of file mvcc_active_tran.cpp.

References ALL_COMMITTED, assert, count_bits(), get_mvccid(), get_unit_of(), m_bit_area, m_bit_area_length, m_bit_area_start_mvccid, m_long_tran_mvccids, m_long_tran_mvccids_length, NULL, and UNIT_BIT_COUNT.

Referenced by mvcctable::complete_mvcc().

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void mvcc_active_tran::copy_to	(	mvcc_active_tran &	dest,
		copy_safety	safety
	)		const

Definition at line 278 of file mvcc_active_tran.cpp.

References assert, check_valid(), get_bit_area_memsize(), get_long_tran_memsize(), if(), m_bit_area, m_bit_area_length, m_bit_area_start_mvccid, m_initialized, m_long_tran_mvccids, m_long_tran_mvccids_length, and THREAD_SAFE.

Referenced by mvcctable::build_mvcc_info(), mvcc_snapshot::copy_to(), and mvcctable::next_tran_status_finish().

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void mvcc_active_tran::finalize ( void )

Definition at line 61 of file mvcc_active_tran.cpp.

References m_bit_area, m_initialized, m_long_tran_mvccids, and NULL.

Referenced by mvcc_trans_status::finalize(), logtb_finalize_mvcc_testing(), and logtb_free_tran_mvcc_info().

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size_t mvcc_active_tran::get_area_size ( ) const

private

Definition at line 152 of file mvcc_active_tran.cpp.

References bit_size_to_unit_size(), and m_bit_area_length.

Referenced by cleanup_migrate_to_long_transations(), get_bit_area_memsize(), ltrim_area(), and set_bitarea_mvccid().

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size_t mvcc_active_tran::get_bit_area_memsize ( ) const

private

Definition at line 158 of file mvcc_active_tran.cpp.

References get_area_size(), and units_to_bytes().

Referenced by copy_to(), ltrim_area(), and reset().

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MVCCID mvcc_active_tran::get_bit_area_start_mvccid ( )

Definition at line 92 of file mvcc_active_tran.cpp.

References m_bit_area_start_mvccid.

Referenced by mvcctable::complete_mvcc().

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size_t mvcc_active_tran::get_bit_offset ( MVCCID mvccid ) const

inlineprivate

Definition at line 128 of file mvcc_active_tran.cpp.

References m_bit_area_start_mvccid.

Referenced by is_active(), and set_bitarea_mvccid().

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size_t mvcc_active_tran::get_long_tran_memsize ( ) const

private

Definition at line 164 of file mvcc_active_tran.cpp.

References m_long_tran_mvccids_length.

Referenced by copy_to().

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mvcc_active_tran::unit_type mvcc_active_tran::get_mask_of ( size_t bit_offset )

inlinestaticprivate

Definition at line 122 of file mvcc_active_tran.cpp.

Referenced by check_valid(), is_set(), and set_bitarea_mvccid().

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MVCCID mvcc_active_tran::get_mvccid ( size_t bit_offset ) const

inlineprivate

Definition at line 134 of file mvcc_active_tran.cpp.

References m_bit_area_start_mvccid.

Referenced by cleanup_migrate_to_long_transations(), compute_highest_completed_mvccid(), and compute_lowest_active_mvccid().

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mvcc_active_tran::unit_type * mvcc_active_tran::get_unit_of ( size_t bit_offset ) const

inlineprivate

Definition at line 140 of file mvcc_active_tran.cpp.

References m_bit_area, and UNIT_BIT_COUNT.

Referenced by check_valid(), compute_highest_completed_mvccid(), compute_lowest_active_mvccid(), is_set(), and set_bitarea_mvccid().

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void mvcc_active_tran::initialize ( )

Definition at line 46 of file mvcc_active_tran.cpp.

References BITAREA_MAX_SIZE, long_tran_max_size(), m_bit_area, m_bit_area_length, m_bit_area_start_mvccid, m_initialized, m_long_tran_mvccids, m_long_tran_mvccids_length, and MVCCID_FIRST.

Referenced by mvcctable::build_mvcc_info(), mvcc_snapshot::copy_to(), and mvcc_trans_status::initialize().

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bool mvcc_active_tran::is_active ( MVCCID mvccid ) const

Definition at line 317 of file mvcc_active_tran.cpp.

References get_bit_offset(), i, is_set(), m_bit_area_length, m_bit_area_start_mvccid, m_long_tran_mvccids, m_long_tran_mvccids_length, MVCC_ID_PRECEDES, and NULL.

Referenced by mvcctable::is_active(), and mvcc_is_id_in_snapshot().

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bool mvcc_active_tran::is_set ( size_t bit_offset ) const

inlineprivate

Definition at line 146 of file mvcc_active_tran.cpp.

References get_mask_of(), and get_unit_of().

Referenced by is_active().

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size_t mvcc_active_tran::long_tran_max_size ( )

inlinestaticprivate

Definition at line 98 of file mvcc_active_tran.cpp.

References logtb_get_number_of_total_tran_indices().

Referenced by add_long_transaction(), initialize(), and set_bitarea_mvccid().

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void mvcc_active_tran::ltrim_area ( size_t trim_size )

private

Definition at line 384 of file mvcc_active_tran.cpp.

References ALL_ACTIVE, assert, BITAREA_MAX_SIZE, get_area_size(), get_bit_area_memsize(), i, m_bit_area, m_bit_area_length, m_bit_area_start_mvccid, and units_to_bits().

Referenced by cleanup_migrate_to_long_transations(), and set_bitarea_mvccid().

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mvcc_active_tran& mvcc_active_tran::operator= ( const mvcc_active_tran & other )

delete

void mvcc_active_tran::remove_long_transaction ( MVCCID mvccid )

private

Definition at line 354 of file mvcc_active_tran.cpp.

References assert, check_valid(), i, m_long_tran_mvccids, and m_long_tran_mvccids_length.

Referenced by set_inactive_mvccid().

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void mvcc_active_tran::reset ( void )

Definition at line 73 of file mvcc_active_tran.cpp.

References check_valid(), get_bit_area_memsize(), m_bit_area, m_bit_area_length, m_bit_area_start_mvccid, m_initialized, m_long_tran_mvccids_length, and MVCCID_NULL.

Referenced by mvcc_snapshot::reset().

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void mvcc_active_tran::reset_active_transactions ( )

Definition at line 516 of file mvcc_active_tran.cpp.

References BITAREA_MAX_MEMSIZE, m_bit_area, m_bit_area_length, and m_long_tran_mvccids_length.

Referenced by mvcctable::build_mvcc_info().

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void mvcc_active_tran::reset_start_mvccid ( MVCCID mvccid )

Definition at line 505 of file mvcc_active_tran.cpp.

References check_valid(), m_bit_area_start_mvccid, and m_initialized.

Referenced by mvcctable::reset_start_mvccid().

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void mvcc_active_tran::set_bitarea_mvccid ( MVCCID mvccid )

private

Definition at line 412 of file mvcc_active_tran.cpp.

References ALL_COMMITTED, assert, BITAREA_MAX_BITS, check_valid(), cleanup_migrate_to_long_transations(), get_area_size(), get_bit_offset(), get_mask_of(), get_unit_of(), long_tran_max_size(), ltrim_area(), m_bit_area, m_bit_area_length, m_bit_area_start_mvccid, and UNIT_BIT_COUNT.

Referenced by set_inactive_mvccid().

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void mvcc_active_tran::set_inactive_mvccid ( MVCCID mvccid )

Definition at line 491 of file mvcc_active_tran.cpp.

References m_bit_area_start_mvccid, MVCC_ID_PRECEDES, remove_long_transaction(), and set_bitarea_mvccid().

Referenced by mvcctable::complete_mvcc(), mvcctable::complete_sub_mvcc(), and logtb_complete_sub_mvcc().

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size_t mvcc_active_tran::units_to_bits ( size_t unit_count )

inlinestaticprivate

Definition at line 110 of file mvcc_active_tran.cpp.

References UNIT_BIT_COUNT.

Referenced by compute_highest_completed_mvccid(), and ltrim_area().

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size_t mvcc_active_tran::units_to_bytes ( size_t unit_count )

inlinestaticprivate

Definition at line 116 of file mvcc_active_tran.cpp.

References UNIT_BYTE_COUNT.

Referenced by get_bit_area_memsize().

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Member Data Documentation

const unit_type mvcc_active_tran::ALL_ACTIVE = 0

staticprivate

Definition at line 74 of file mvcc_active_tran.hpp.

Referenced by check_valid(), and ltrim_area().

const unit_type mvcc_active_tran::ALL_COMMITTED = (unit_type) -1

staticprivate

Definition at line 75 of file mvcc_active_tran.hpp.

Referenced by cleanup_migrate_to_long_transations(), compute_lowest_active_mvccid(), and set_bitarea_mvccid().

const size_t mvcc_active_tran::BITAREA_MAX_BITS = BITAREA_MAX_SIZE * UNIT_BIT_COUNT

staticprivate

Definition at line 72 of file mvcc_active_tran.hpp.

Referenced by set_bitarea_mvccid().

const size_t mvcc_active_tran::BITAREA_MAX_MEMSIZE = BITAREA_MAX_SIZE * UNIT_BYTE_COUNT

staticprivate

Definition at line 71 of file mvcc_active_tran.hpp.

Referenced by reset_active_transactions().

const size_t mvcc_active_tran::BITAREA_MAX_SIZE = 500

staticprivate

Definition at line 65 of file mvcc_active_tran.hpp.

Referenced by check_valid(), initialize(), and ltrim_area().

const size_t mvcc_active_tran::BYTE_BIT_COUNT = 8

staticprivate

Definition at line 67 of file mvcc_active_tran.hpp.

unit_type* mvcc_active_tran::m_bit_area

private

Definition at line 78 of file mvcc_active_tran.hpp.

Referenced by check_valid(), cleanup_migrate_to_long_transations(), compute_highest_completed_mvccid(), compute_lowest_active_mvccid(), copy_to(), finalize(), get_unit_of(), initialize(), ltrim_area(), reset(), reset_active_transactions(), set_bitarea_mvccid(), and ~mvcc_active_tran().

volatile size_t mvcc_active_tran::m_bit_area_length

private

Definition at line 82 of file mvcc_active_tran.hpp.

Referenced by check_valid(), compute_highest_completed_mvccid(), compute_lowest_active_mvccid(), copy_to(), get_area_size(), initialize(), is_active(), ltrim_area(), reset(), reset_active_transactions(), and set_bitarea_mvccid().

volatile MVCCID mvcc_active_tran::m_bit_area_start_mvccid

private

Definition at line 80 of file mvcc_active_tran.hpp.

Referenced by check_valid(), compute_highest_completed_mvccid(), compute_lowest_active_mvccid(), copy_to(), get_bit_area_start_mvccid(), get_bit_offset(), get_mvccid(), initialize(), is_active(), ltrim_area(), reset(), reset_start_mvccid(), set_bitarea_mvccid(), and set_inactive_mvccid().

bool mvcc_active_tran::m_initialized

private

Definition at line 89 of file mvcc_active_tran.hpp.

Referenced by copy_to(), finalize(), initialize(), reset(), and reset_start_mvccid().

MVCCID* mvcc_active_tran::m_long_tran_mvccids

private

Definition at line 85 of file mvcc_active_tran.hpp.

Referenced by add_long_transaction(), check_valid(), compute_lowest_active_mvccid(), copy_to(), finalize(), initialize(), is_active(), remove_long_transaction(), and ~mvcc_active_tran().

volatile size_t mvcc_active_tran::m_long_tran_mvccids_length

private

Definition at line 87 of file mvcc_active_tran.hpp.

Referenced by add_long_transaction(), check_valid(), compute_lowest_active_mvccid(), copy_to(), get_long_tran_memsize(), initialize(), is_active(), remove_long_transaction(), reset(), and reset_active_transactions().

const size_t mvcc_active_tran::UNIT_BIT_COUNT = UNIT_BYTE_COUNT * BYTE_BIT_COUNT

staticprivate

Definition at line 69 of file mvcc_active_tran.hpp.

Referenced by bit_size_to_unit_size(), check_valid(), cleanup_migrate_to_long_transations(), compute_highest_completed_mvccid(), compute_lowest_active_mvccid(), get_unit_of(), set_bitarea_mvccid(), and units_to_bits().

const size_t mvcc_active_tran::UNIT_BYTE_COUNT = sizeof (unit_type)

staticprivate

Definition at line 68 of file mvcc_active_tran.hpp.

Referenced by units_to_bytes().

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

src/transaction/mvcc_active_tran.hpp
src/transaction/mvcc_active_tran.cpp

Public Types

Public Member Functions

Private Types

Private Member Functions

Static Private Member Functions

Private Attributes

Static Private Attributes

Detailed Description

Member Typedef Documentation

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation