dd::DD_kill_immunizer Class Reference

RAII class for immunizing the THD from kill operations. More...

#include <dd_kill_immunizer.h>

Public Member Functions
	DD_kill_immunizer (THD *thd)
	~DD_kill_immunizer ()
bool	is_active ()
void	save_killed_state (THD::killed_state state)

Private Attributes
THD *	m_thd
THD::killed_state	m_killed_state
DD_kill_immunizer *	m_saved_kill_immunizer
THD::killed_state	m_saved_killed_state
bool	m_is_active

Detailed Description

RAII class for immunizing the THD from kill operations.

Interruptions to operations on new Data Dictionary tables due to KILL QUERY, KILL CONNECTION or statement execution timeout would leave DD in inconsistent state. So the operations on the New Data Dictionary tables are made immune to these operations using DD_kill_immunizer.

Note: DD operations are made immune to KILL operations till WL#7743 and WL#7016 are implemented. So as part of these WL's DD_kill_immunizer should be removed.

Constructor & Destructor Documentation

DD_kill_immunizer()

dd::DD_kill_immunizer::DD_kill_immunizer ( THD *  thd )

inline

~DD_kill_immunizer()

dd::DD_kill_immunizer::~DD_kill_immunizer ( )

inline

Member Function Documentation

is_active()

bool dd::DD_kill_immunizer::is_active ( )

inline

save_killed_state()

void dd::DD_kill_immunizer::save_killed_state ( THD::killed_state  state )

inline

Member Data Documentation

m_is_active

bool dd::DD_kill_immunizer::m_is_active

private

m_killed_state

THD::killed_state dd::DD_kill_immunizer::m_killed_state

private

m_saved_kill_immunizer

DD_kill_immunizer* dd::DD_kill_immunizer::m_saved_kill_immunizer

private

m_saved_killed_state

THD::killed_state dd::DD_kill_immunizer::m_saved_killed_state

private

m_thd

THD* dd::DD_kill_immunizer::m_thd

private

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

• sql/dd/dd_kill_immunizer.h