TrxUndoRsegs Class Reference

Rollback segments from a given transaction with trx-no scheduled for purge. More...

#include <trx0types.h>

Public Member Functions
	TrxUndoRsegs (trx_id_t trx_no)
	TrxUndoRsegs ()
	Default constructor. More...
void	set_trx_no (trx_id_t trx_no)
trx_id_t	get_trx_no () const
	Get transaction number. More...
void	insert (trx_rseg_t *rseg)
	Add rollback segment. More...
size_t	size () const
	Number of registered rsegs. More...
Rsegs_array< 2 >::iterator	begin ()
Rsegs_array< 2 >::iterator	end ()
void	insert (const TrxUndoRsegs &append_from)
	Append rollback segments from referred instance to current instance. More...
bool	operator() (const TrxUndoRsegs &lhs, const TrxUndoRsegs &rhs)
	Compare two TrxUndoRsegs based on trx_no. More...

Private Attributes
trx_id_t	m_trx_no
	Compiler defined copy-constructor/assignment operator should be fine given that there is no reference to a memory object outside scope of class object. More...
size_t	m_rsegs_n {}
Rsegs_array< 2 >	m_rsegs
	Rollback segments of a transaction, scheduled for purge. More...

Detailed Description

Rollback segments from a given transaction with trx-no scheduled for purge.

Constructor & Destructor Documentation

TrxUndoRsegs() [1/2]

TrxUndoRsegs::TrxUndoRsegs ( trx_id_t  trx_no )

inlineexplicit

TrxUndoRsegs() [2/2]

TrxUndoRsegs::TrxUndoRsegs ( )

inline

Default constructor.

Member Function Documentation

begin()

Rsegs_array< 2 >::iterator TrxUndoRsegs::begin ( void  )

inline

Returns

an iterator to the first element

end()

Rsegs_array< 2 >::iterator TrxUndoRsegs::end ( void  )

inline

Returns

an iterator to the end

get_trx_no()

trx_id_t TrxUndoRsegs::get_trx_no ( ) const

inline

Get transaction number.

Returns

trx_id_t - get transaction number.

insert() [1/2]

void TrxUndoRsegs::insert ( const TrxUndoRsegs &  append_from )

inline

Append rollback segments from referred instance to current instance.

insert() [2/2]

void TrxUndoRsegs::insert ( trx_rseg_t *  rseg )

inline

Add rollback segment.

Parameters

rseg	rollback segment to add.

operator()()

bool TrxUndoRsegs::operator() ( const TrxUndoRsegs &  lhs, const TrxUndoRsegs &  rhs  )

inline

Compare two TrxUndoRsegs based on trx_no.

Parameters

lhs	first element to compare
rhs	second element to compare

Returns

true if elem1 > elem2 else false.

set_trx_no()

void TrxUndoRsegs::set_trx_no ( trx_id_t  trx_no )

inline

size()

size_t TrxUndoRsegs::size ( ) const

inline

Number of registered rsegs.

Returns

size of rseg list.

Member Data Documentation

m_rsegs

Rsegs_array<2> TrxUndoRsegs::m_rsegs

private

Rollback segments of a transaction, scheduled for purge.

m_rsegs_n

size_t TrxUndoRsegs::m_rsegs_n {}

private

m_trx_no

trx_id_t TrxUndoRsegs::m_trx_no

private

Compiler defined copy-constructor/assignment operator should be fine given that there is no reference to a memory object outside scope of class object.

The rollback segments transaction number.

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

• storage/innobase/include/trx0types.h