pfs_metrics_service_imp.cc File Reference

The performance schema implementation of server metrics instrument service. More...

#include "storage/perfschema/pfs_metrics_service_imp.h"
#include <map>
#include <string>
#include "mysql/psi/mysql_rwlock.h"
#include "pfs_column_values.h"
#include "pfs_global.h"
#include "pfs_instr_class.h"

Functions
static bool	invalid_metric_name (const char *name, size_t max_len)
static bool	invalid_metric_definition (const PSI_metric_info_v1 *metric)
static bool	invalid_meter_definition (const PSI_meter_info_v1 *metric)
void	initialize_mysql_server_metrics_instrument_service ()
void	cleanup_mysql_server_metrics_instrument_service ()
static int	build_prefix (const LEX_CSTRING *prefix, const char *optional, char *output, size_t *output_length)
static void	pfs_register_metrics_v1 (PSI_metric_info_v1 *info, size_t count, const char *meter)
void	pfs_register_meters_v1 (PSI_meter_info_v1 *info, size_t count)
static void	pfs_unregister_metrics_v1 (PSI_metric_info_v1 *info, size_t count)
void	pfs_unregister_meters_v1 (PSI_meter_info_v1 *info, size_t count)
void	pfs_register_change_notification_v1 (meter_registration_changes_v1_t callback)
void	pfs_unregister_change_notification_v1 (meter_registration_changes_v1_t callback)
void	pfs_send_change_notification_v1 (const char *meter, MeterNotifyType change)

Variables
mysql_rwlock_t	LOCK_pfs_metrics
mysql_rwlock_t	LOCK_pfs_meter_notify
static PSI_rwlock_key	key_LOCK_pfs_metrics
static PSI_rwlock_info	info_LOCK_pfs_metrics
static PSI_rwlock_key	key_LOCK_pfs_meter_notify
static PSI_rwlock_info	info_LOCK_pfs_meter_notify
static meter_registration_changes_v1_t	g_notify_callback = nullptr
const mysql_service_psi_metric_v1_t	imp_performance_schema_psi_metric_v1
bool	server_metrics_instrument_service_initialized = false
constexpr int	PFS_MAX_FULL_METRIC_PREFIX_NAME_LENGTH = 80

Detailed Description

The performance schema implementation of server metrics instrument service.

Function Documentation

build_prefix()

static int build_prefix ( const LEX_CSTRING *  prefix, const char *  optional, char *  output, size_t *  output_length  )

static

cleanup_mysql_server_metrics_instrument_service()

void cleanup_mysql_server_metrics_instrument_service

(

)

initialize_mysql_server_metrics_instrument_service()

void initialize_mysql_server_metrics_instrument_service

(

)

invalid_meter_definition()

static bool invalid_meter_definition ( const PSI_meter_info_v1 *  metric )

static

invalid_metric_definition()

static bool invalid_metric_definition ( const PSI_metric_info_v1 *  metric )

static

invalid_metric_name()

static bool invalid_metric_name ( const char *  name, size_t  max_len  )

static

pfs_register_change_notification_v1()

void pfs_register_change_notification_v1

(

meter_registration_changes_v1_t

callback

)

pfs_register_meters_v1()

void pfs_register_meters_v1	(	PSI_meter_info_v1 *	info,
		size_t	count
	)

pfs_register_metrics_v1()

static void pfs_register_metrics_v1 ( PSI_metric_info_v1 *  info, size_t  count, const char *  meter  )

static

pfs_send_change_notification_v1()

void pfs_send_change_notification_v1	(	const char *	meter,
		MeterNotifyType	change
	)

pfs_unregister_change_notification_v1()

void pfs_unregister_change_notification_v1

(

meter_registration_changes_v1_t

callback

)

pfs_unregister_meters_v1()

void pfs_unregister_meters_v1	(	PSI_meter_info_v1 *	info,
		size_t	count
	)

pfs_unregister_metrics_v1()

static void pfs_unregister_metrics_v1 ( PSI_metric_info_v1 *  info, size_t  count  )

static

Variable Documentation

g_notify_callback

meter_registration_changes_v1_t g_notify_callback = nullptr

static

imp_performance_schema_psi_metric_v1

const mysql_service_psi_metric_v1_t imp_performance_schema_psi_metric_v1

Initial value:

= {
pfs_register_meters_v1, pfs_unregister_meters_v1,
    pfs_register_change_notification_v1, pfs_unregister_change_notification_v1,
    pfs_send_change_notification_v1, }

info_LOCK_pfs_meter_notify

PSI_rwlock_info info_LOCK_pfs_meter_notify

static

Initial value:

= {
    &key_LOCK_pfs_meter_notify, "LOCK_pfs_meter_notify", PSI_FLAG_SINGLETON, 0,
    "This lock protects meter change notification callback."}

info_LOCK_pfs_metrics

PSI_rwlock_info info_LOCK_pfs_metrics

static

Initial value:

= {
    &key_LOCK_pfs_metrics, "LOCK_pfs_metrics", PSI_FLAG_SINGLETON, 0,
    "This lock protects list of instrumented metrics."}

key_LOCK_pfs_meter_notify

PSI_rwlock_key key_LOCK_pfs_meter_notify

static

key_LOCK_pfs_metrics

PSI_rwlock_key key_LOCK_pfs_metrics

static

LOCK_pfs_meter_notify

mysql_rwlock_t LOCK_pfs_meter_notify

LOCK_pfs_metrics

mysql_rwlock_t LOCK_pfs_metrics

PFS_MAX_FULL_METRIC_PREFIX_NAME_LENGTH

constexpr int PFS_MAX_FULL_METRIC_PREFIX_NAME_LENGTH = 80

constexpr

server_metrics_instrument_service_initialized

bool server_metrics_instrument_service_initialized = false