PFS_instrumentation_handle_raii Class Reference

RAII class to manage PFS statement instrumentation for statement executed using Statement Handle interface. More...

Public Member Functions
	PFS_instrumentation_handle_raii (THD *thd, std::string *new_query, PSI_statement_info *psi_info)
	~PFS_instrumentation_handle_raii ()

Private Attributes
THD *	m_thd {nullptr}
LEX_CSTRING	m_saved_query_string
String	m_saved_rewritten_query
bool	m_saved_safe_to_display {false}
PSI_statement_locker_state	m_psi_state
PSI_statement_locker *	m_saved_parent_statement_psi {nullptr}
sql_digest_state	m_digest
sql_digest_state *	m_saved_parent_digest {nullptr}

Detailed Description

RAII class to manage PFS statement instrumentation for statement executed using Statement Handle interface.

This class mainly manages setting query text of statement being executed for PFS instrumentation and starts the PFS statement instrumentation. In the destructor of this RAII class, reset query text (i.e. set query text of parent query) ands end the PFS statement instrumentation.

Constructor & Destructor Documentation

PFS_instrumentation_handle_raii()

PFS_instrumentation_handle_raii::PFS_instrumentation_handle_raii ( THD *  thd, std::string *  new_query, PSI_statement_info *  psi_info  )

inline

~PFS_instrumentation_handle_raii()

PFS_instrumentation_handle_raii::~PFS_instrumentation_handle_raii ( )

inline

Member Data Documentation

m_digest

sql_digest_state PFS_instrumentation_handle_raii::m_digest

private

m_psi_state

PSI_statement_locker_state PFS_instrumentation_handle_raii::m_psi_state

private

m_saved_parent_digest

sql_digest_state* PFS_instrumentation_handle_raii::m_saved_parent_digest {nullptr}

private

m_saved_parent_statement_psi

PSI_statement_locker* PFS_instrumentation_handle_raii::m_saved_parent_statement_psi {nullptr}

private

m_saved_query_string

LEX_CSTRING PFS_instrumentation_handle_raii::m_saved_query_string

private

m_saved_rewritten_query

String PFS_instrumentation_handle_raii::m_saved_rewritten_query

private

m_saved_safe_to_display

bool PFS_instrumentation_handle_raii::m_saved_safe_to_display {false}

private

m_thd

THD* PFS_instrumentation_handle_raii::m_thd {nullptr}

private

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

• sql/statement/statement.cc