mtr_t::Command Class Reference

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Public Member Functions
	Command (mtr_t *mtr)
	Constructor. More...
void	init (mtr_t *mtr)
	~Command ()
	Destructor. More...
void	execute ()
	Write the redo log record, add dirty pages to the flush list and release the resources. More...
void	release_all ()
	Release both the latches and blocks used in the mini-transaction. More...
void	release_resources ()
	Release the resources. More...

Private Member Functions
bool	prepare_write ()
	Prepare to write the mini-transaction log to the redo log buffer. More...
Log_handle	write ()
	Writes the (previously prepared, non-empty) mtr data to the log, assigning lsn range to it. More...

Private Attributes
bool	m_sync
	true if it is a sync mini-transaction. More...
mtr_t::Impl *	m_impl
	The mini-transaction state. More...
volatile ulint	m_locks_released
	Set to 1 after the user thread releases the latches. More...

Detailed Description

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Constructor & Destructor Documentation

Command()

mtr_t::Command::Command ( mtr_t *  mtr )

inlineexplicit

Constructor.

Takes ownership of the mtr->m_impl, is responsible for deleting it.

Parameters

[in,out]

mtr

Mini-transaction

~Command()

mtr_t::Command::~Command ( )

inline

Destructor.

Member Function Documentation

execute()

void mtr_t::Command::execute

(

)

Write the redo log record, add dirty pages to the flush list and release the resources.

init()

void mtr_t::Command::init ( mtr_t *  mtr )

inline

prepare_write()

bool mtr_t::Command::prepare_write ( )

private

Prepare to write the mini-transaction log to the redo log buffer.

Returns

true iff there is anything to write

release_all()

void mtr_t::Command::release_all

(

)

Release both the latches and blocks used in the mini-transaction.

Release the latches and blocks acquired by this mini-transaction.

release_resources()

void mtr_t::Command::release_resources

(

)

Release the resources.

write()

Log_handle mtr_t::Command::write ( )

private

Writes the (previously prepared, non-empty) mtr data to the log, assigning lsn range to it.

Member Data Documentation

m_impl

mtr_t::Impl* mtr_t::Command::m_impl

private

The mini-transaction state.

m_locks_released

volatile ulint mtr_t::Command::m_locks_released

private

Set to 1 after the user thread releases the latches.

The log writer thread must wait for this to be set to 1.

m_sync

bool mtr_t::Command::m_sync

private

true if it is a sync mini-transaction.

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

• storage/innobase/mtr/mtr0mtr.cc