Status_variable Class Reference

Status variable derived from SHOW_VAR. More...

#include <pfs_variable.h>

Public Member Functions
	Status_variable ()
	Status_variable (const SHOW_VAR *show_var, System_status_var *vars, enum_var_type query_scope)
	CLASS Status_variable. More...
bool	is_null () const

Public Attributes
const char *	m_name
size_t	m_name_length
char	m_value_str [SHOW_VAR_FUNC_BUFF_SIZE+1]
size_t	m_value_length
SHOW_TYPE	m_type
SHOW_SCOPE	m_scope
const CHARSET_INFO *	m_charset

Private Member Functions
void	init (const SHOW_VAR *show_var, System_status_var *vars, enum_var_type query_scope)
	Resolve status value, convert to string. More...

Private Attributes
bool	m_initialized

Detailed Description

Status variable derived from SHOW_VAR.

Constructor & Destructor Documentation

Status_variable() [1/2]

Status_variable::Status_variable ( )

inline

Status_variable() [2/2]

Status_variable::Status_variable	(	const SHOW_VAR *	show_var,
		System_status_var *	vars,
		enum_var_type	query_scope
	)

CLASS Status_variable.

Member Function Documentation

init()

void Status_variable::init ( const SHOW_VAR *  show_var, System_status_var *  vars, enum_var_type  query_scope  )

private

Resolve status value, convert to string.

show_var->value is an offset into status_vars. NOTE: Assumes LOCK_status is held.

is_null()

bool Status_variable::is_null ( ) const

inline

Member Data Documentation

m_charset

const CHARSET_INFO* Status_variable::m_charset

m_initialized

bool Status_variable::m_initialized

private

m_name

const char* Status_variable::m_name

m_name_length

size_t Status_variable::m_name_length

m_scope

SHOW_SCOPE Status_variable::m_scope

m_type

SHOW_TYPE Status_variable::m_type

m_value_length

size_t Status_variable::m_value_length

m_value_str

char Status_variable::m_value_str[SHOW_VAR_FUNC_BUFF_SIZE+1]

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

• storage/perfschema/pfs_variable.h
• storage/perfschema/pfs_variable.cc