Performance schema system variable and status variable (implementation). More...

#include "storage/perfschema/pfs_variable.h"
#include <assert.h>
#include <algorithm>
#include <map>
#include <vector>
#include "my_compiler.h"
#include "mutex_lock.h"
#include "my_macros.h"
#include "my_sys.h"
#include "sql/current_thd.h"
#include "sql/debug_sync.h"
#include "sql/derror.h"
#include "sql/mysqld.h"
#include "sql/persisted_variable.h"
#include "sql/sql_class.h"
#include "sql/sql_lex.h"
#include "sql/sql_show.h"
#include "storage/perfschema/pfs.h"
#include "storage/perfschema/pfs_global.h"
#include "storage/perfschema/pfs_visitor.h"

Functions
void	sum_user_status (PFS_client pfs_user, System_status_var status_totals)

void	sum_host_status (PFS_client pfs_host, System_status_var status_totals)

void	sum_account_status (PFS_client pfs_account, System_status_var status_totals)

void	reset_pfs_status_stats ()
	Reset aggregated status counter stats for account, user and host. More...

void	system_variable_warning ()
	Warning issued if the version of the system variable hash table changes during a query. More...

void	status_variable_warning ()
	Warning issued if the global status variable array changes during a query. More...

Detailed Description

Performance schema system variable and status variable (implementation).

Function Documentation

◆ reset_pfs_status_stats()

void reset_pfs_status_stats ( )

Reset aggregated status counter stats for account, user and host.

Reset the aggregated status counter stats.

NOTE: Assumes LOCK_status is held.

◆ status_variable_warning()

void status_variable_warning ( )

Warning issued if the global status variable array changes during a query.

This can happen when a plugin is loaded or unloaded.

◆ sum_account_status()

void sum_account_status	(	PFS_client *	pfs_account,
		System_status_var *	status_totals
	)

◆ sum_host_status()

void sum_host_status	(	PFS_client *	pfs_host,
		System_status_var *	status_totals
	)

◆ sum_user_status()

void sum_user_status	(	PFS_client *	pfs_user,
		System_status_var *	status_totals
	)

◆ system_variable_warning()

void system_variable_warning ( )

Warning issued if the version of the system variable hash table changes during a query.