pfs_example_plugin_employee.cc File Reference

#include <mysql/plugin.h>
#include <mysql_version.h>
#include <mysql/components/my_service.h>
#include <mysql/components/services/log_builtins.h>
#include <mysqld_error.h>
#include "mysql/psi/mysql_mutex.h"
#include "plugin/pfs_table_plugin/pfs_example_employee_name.h"
#include "plugin/pfs_table_plugin/pfs_example_employee_salary.h"
#include "plugin/pfs_table_plugin/pfs_example_machine.h"
#include "plugin/pfs_table_plugin/pfs_example_machines_by_emp_by_mtype.h"

Macros
#define	LOG_COMPONENT_TAG   "pfs_example_plugin_employee"

Functions
bool	acquire_service_handles (MYSQL_PLUGIN p[[maybe_unused]])
	acquire_service_handles does following: More...
void	release_service_handles ()
	release_service_handles does following: More...
int	ename_prepare_insert_row ()
int	esalary_prepare_insert_row ()
int	machine_prepare_insert_row ()
static bool	pfs_example_func (MYSQL_PLUGIN p)
	pfs_example_func does following : More...
static int	pfs_example_plugin_employee_init (void *p)
	Initialize the pfs_example_plugin_employee at server start or plugin installation. More...
static int	pfs_example_plugin_employee_check (void *)
static int	pfs_example_plugin_employee_deinit (void *p[[maybe_unused]])
	Terminate the pfs_example_plugin_employee at server shutdown or plugin deinstallation. More...
	mysql_declare_plugin (pfs_example_plugin_employee)
	pfs_example_plugin_employee plugin descriptor More...

Variables
static const mysql_service_registry_t *	reg_srv = nullptr
const mysql_service_log_builtins_t *	log_bi = nullptr
	accessor built-ins More...
const mysql_service_log_builtins_string_t *	log_bs = nullptr
	string built-ins More...
Ename_Record	ename_array []
Esalary_Record	esalary_array []
Machine_Record	machine_array []
const mysql_service_registry_t *	r = nullptr
my_h_service	h_ret_table_svc = nullptr
const mysql_service_pfs_plugin_table_t *	table_svc = nullptr
PFS_engine_table_share_proxy *	share_list [4] = {nullptr, nullptr, nullptr, nullptr}
unsigned int	share_list_count = 4
static PSI_mutex_key	key_mutex_name
static PSI_mutex_key	key_mutex_salary
static PSI_mutex_key	key_mutex_machine
static PSI_mutex_info	mutex_info []
static struct st_mysql_daemon	pfs_example_plugin_employee
	mysql_declare_plugin_end

Macro Definition Documentation

LOG_COMPONENT_TAG

#define LOG_COMPONENT_TAG   "pfs_example_plugin_employee"

Function Documentation

acquire_service_handles()

bool acquire_service_handles

(

MYSQL_PLUGIN p]

[[maybe_unused]

)

acquire_service_handles does following:

• Acquire the registry service for mysql_server.
• Acquire pfs_plugin_table service implementation.

ename_prepare_insert_row()

int ename_prepare_insert_row

(

)

esalary_prepare_insert_row()

int esalary_prepare_insert_row

(

)

machine_prepare_insert_row()

int machine_prepare_insert_row

(

)

mysql_declare_plugin()

mysql_declare_plugin

(

pfs_example_plugin_employee

)

pfs_example_plugin_employee plugin descriptor

pfs_example_func()

static bool pfs_example_func ( MYSQL_PLUGIN  p )

static

pfs_example_func does following :

• Instantiate PFS_engine_table_share_proxy(s).
• Prepare and insert rows in tables from here.
• Acquire pfs_plugin_table service handle.
• Call add_table method of pfs_plugin_table service.

Error messages are written to the server's error log. In case of success writes a single information message to the server's log.

Return values

false	success
true	failure

Call add_tables function of pfs_plugin_table service to add plugin tables in performance schema.

pfs_example_plugin_employee_check()

static int pfs_example_plugin_employee_check ( void *  )

static

pfs_example_plugin_employee_deinit()

static int pfs_example_plugin_employee_deinit ( void *p]  [[maybe_unused] )

static

Terminate the pfs_example_plugin_employee at server shutdown or plugin deinstallation.

• Delete/Drop plugin tables from Performance Schema.
• Release pfs_plugin_table service handle.

Call delete_tables function of pfs_plugin_table service to delete plugin tables from performance schema

pfs_example_plugin_employee_init()

static int pfs_example_plugin_employee_init ( void *  p )

static

Initialize the pfs_example_plugin_employee at server start or plugin installation.

• Call pfs_example_func.

release_service_handles()

void release_service_handles

(

)

release_service_handles does following:

• Release the handle to the pfs_plugin_table service.
• Release the handle to registry service.

Variable Documentation

ename_array

Ename_Record ename_array[]

Initial value:

=
{
  {{1, false}, "foo1", 4, "bar1", 4, true},
  {{2, false}, "foo2", 4, "bar2", 4, true},
  {{3, false}, "foo3", 4, "bar3", 4, true}
}

esalary_array

Esalary_Record esalary_array[]

Initial value:

=
{
  {{1, false}, {1000, false}, "2013-11-12", 10, "12:02:34", 8, true},
  {{2, false}, {2000, false}, "2016-02-29", 10, "12:12:30", 8, true},
  {{3, false}, {3000, false}, "2017-03-24", 10, "11:12:50", 8, true}
}

h_ret_table_svc

my_h_service h_ret_table_svc = nullptr

key_mutex_machine

PSI_mutex_key key_mutex_machine

static

key_mutex_name

PSI_mutex_key key_mutex_name

static

key_mutex_salary

PSI_mutex_key key_mutex_salary

static

log_bi

const mysql_service_log_builtins_t* log_bi = nullptr

accessor built-ins

accessor built-ins

log_bs

const mysql_service_log_builtins_string_t* log_bs = nullptr

string built-ins

machine_array

Machine_Record machine_array[]

Initial value:

=
{
  {{1, false}, {DESKTOP, false}, "Lenovo", 6, {1, false}, true},
  {{2, false}, {LAPTOP, false}, "Dell", 4, {2, false}, true},
  {{3, false}, {MOBILE, false}, "Apple", 5, {1, false}, true},
  {{4, false}, {MOBILE, false}, "Samsung", 7, {1, false}, true},
  {{5, false}, {LAPTOP, false}, "Lenovo", 6, {2, false}, true},
  {{6, false}, {MOBILE, false}, "Nokia", 5, {2, false}, true},
  {{7, false}, {LAPTOP, false}, "Apple", 5, {1, false}, true},
  {{8, false}, {LAPTOP, false}, "HP", 2, {3, false}, true},
  {{9, false}, {DESKTOP, false}, "Apple", 5, {3, false}, true},
}

mutex_info

PSI_mutex_info mutex_info[]

static

Initial value:

= {
  {&key_mutex_name, "LOCK_ename_records_array",
   PSI_FLAG_SINGLETON, PSI_VOLATILITY_PERMANENT,
   "Mutex for the pfs_example_employee_name table."},
 
  {&key_mutex_salary, "LOCK_esalary_records_array",
   0, PSI_VOLATILITY_PERMANENT,
   "Mutex for the pfs_example_employee_salary table."},
 
  {&key_mutex_machine, "LOCK_machine_records_array",
   0, PSI_VOLATILITY_PERMANENT,
   "Mutex for the pfs_example_machine table."}
}

mysql_declare_plugin_end

mysql_declare_plugin_end

pfs_example_plugin_employee

struct st_mysql_daemon pfs_example_plugin_employee

static

Initial value:

= {
  MYSQL_DAEMON_INTERFACE_VERSION}

r

const mysql_service_registry_t* r = nullptr

reg_srv

const mysql_service_registry_t* reg_srv = nullptr

static

share_list

PFS_engine_table_share_proxy* share_list[4] = {nullptr, nullptr, nullptr, nullptr}

share_list_count

unsigned int share_list_count = 4

table_svc

const mysql_service_pfs_plugin_table_t* table_svc = nullptr