mysqlbackup.cc File Reference

#include "mysqlbackup.h"
#include <atomic>
#include "backup_comp_constants.h"
#include "backup_page_tracker.h"
#include "mysql/components/library_mysys/my_memory.h"
#include "mysql/components/services/psi_memory.h"
#include "mysql/service_security_context.h"
#include "mysql_version.h"
#include "mysqld_error.h"
#include "string_with_len.h"

Functions
bool	have_backup_admin_privilege (void *opaque_thd)
	Method to check if the current user has got backup privilege. More...
mysql_service_status_t	register_udfs ()
	Register UDF(s) More...
mysql_service_status_t	unregister_udfs ()
	Unregister UDF(s) More...
static bool	register_status_variables ()
	Register the server status variables defined by this component. More...
static bool	unregister_status_variables ()
	Unregister the server status variables defined by this component. More...
static int	mysqlbackup_backup_id_check (MYSQL_THD thd, SYS_VAR *self, void *save, struct st_mysql_value *value)
	Method to set the system variable "mysqlbackup.backupid". More...
static void	mysqlbackup_backup_id_update (MYSQL_THD, SYS_VAR *, void *var_ptr, const void *save)
	Update function for mysqlbackup_backup_id. More...
static bool	register_system_variables ()
	Register the server system variables defined by this component. More...
static bool	unregister_system_variables ()
	Unregister the server system variables defined by this component. More...
static bool	initialize_log_service ()
	Initialize logging service. More...
static bool	deinitialize_log_service ()
	Deinitialize logging service. More...
mysql_service_status_t	mysqlbackup_init ()
	Initialize the component when loading the component. More...
mysql_service_status_t	mysqlbackup_deinit ()
	Deinitialize the component when unloading the component. More...
	END_COMPONENT_PROVIDES ()
	This component does not provide any services. More...
	REQUIRES_SERVICE_PLACEHOLDER (log_builtins)
	A block for specifying dependencies of this Component. More...
	REQUIRES_SERVICE_PLACEHOLDER (log_builtins_string)
	REQUIRES_SERVICE_PLACEHOLDER (component_sys_variable_register)
	REQUIRES_SERVICE_PLACEHOLDER (component_sys_variable_unregister)
	REQUIRES_SERVICE_PLACEHOLDER (mysql_system_variable_reader)
	REQUIRES_SERVICE_PLACEHOLDER (status_variable_registration)
	REQUIRES_SERVICE_PLACEHOLDER (udf_registration)
	REQUIRES_SERVICE_PLACEHOLDER (mysql_thd_security_context)
	REQUIRES_SERVICE_PLACEHOLDER (mysql_runtime_error)
	REQUIRES_SERVICE_PLACEHOLDER (mysql_security_context_options)
	REQUIRES_SERVICE_PLACEHOLDER (mysql_page_track)
	REQUIRES_SERVICE_PLACEHOLDER (global_grants_check)
	REQUIRES_SERVICE_PLACEHOLDER (mysql_current_thread_reader)
	REQUIRES_SERVICE_PLACEHOLDER (psi_memory_v2)
	REQUIRES_SERVICE (registry)
	A list of dependencies. More...
	REQUIRES_SERVICE (log_builtins)
	REQUIRES_SERVICE (log_builtins_string)
	REQUIRES_SERVICE (component_sys_variable_register)
	REQUIRES_SERVICE (mysql_system_variable_reader)
	REQUIRES_SERVICE (component_sys_variable_unregister)
	REQUIRES_SERVICE (status_variable_registration)
	REQUIRES_SERVICE (udf_registration)
	REQUIRES_SERVICE (mysql_thd_security_context)
	REQUIRES_SERVICE (mysql_runtime_error)
	REQUIRES_SERVICE (mysql_security_context_options)
	REQUIRES_SERVICE (mysql_page_track)
	REQUIRES_SERVICE (global_grants_check)
	REQUIRES_SERVICE (mysql_current_thread_reader)
	REQUIRES_SERVICE (psi_memory_v2)
	END_COMPONENT_REQUIRES ()
	METADATA ("mysql.mysqlbackup", "Oracle Corporation")
	A list of metadata to describe the Component. More...
	METADATA ("mysql.license", "Commercial")
	END_COMPONENT_METADATA ()

Variables
static char *	mysqlbackup_component_version {nullptr}
	This file contains a definition of the mysqlbackup component. More...
char *	mysqlbackup_backup_id = nullptr
static std::atomic< bool >	mysqlbackup_component_sys_var_registered {false}
static SHOW_VAR	mysqlbackup_status_variables []
const mysql_service_log_builtins_t *	log_bi
	Types for the logging service. More...
const mysql_service_log_builtins_string_t *	log_bs
	string built-ins More...
mysql_component_t	mysql_component_mysqlbackup
	Declaration of the Component. More...

Function Documentation

deinitialize_log_service()

static bool deinitialize_log_service ( )

static

Deinitialize logging service.

Returns

Status

Return values

false	success
true	failure

END_COMPONENT_METADATA()

END_COMPONENT_METADATA

(

)

END_COMPONENT_PROVIDES()

END_COMPONENT_PROVIDES

(

)

This component does not provide any services.

END_COMPONENT_REQUIRES()

END_COMPONENT_REQUIRES

(

)

have_backup_admin_privilege()

bool have_backup_admin_privilege

(

void *

opaque_thd

)

Method to check if the current user has got backup privilege.

Parameters

[in]

opaque_thd

Current thread context.

Returns

true, if the seurity context of the thread has backup_admin privileges

Return values

false

otherwise

initialize_log_service()

static bool initialize_log_service ( )

static

Initialize logging service.

Returns

Status

Return values

false	success
true	failure

METADATA() [1/2]

METADATA	(	"mysql.license"	,
		"Commercial"
	)

METADATA() [2/2]

METADATA	(	"mysql.mysqlbackup"	,
		"Oracle Corporation"
	)

A list of metadata to describe the Component.

mysqlbackup_backup_id_check()

static int mysqlbackup_backup_id_check ( MYSQL_THD  thd, SYS_VAR *  self, void *  save, struct st_mysql_value *  value  )

static

Method to set the system variable "mysqlbackup.backupid".

Will check if the user has SUPER or BACKUP_ADMIN privilege.

Returns

Status

Return values

0	on success, errorno on failure

mysqlbackup_backup_id_update()

static void mysqlbackup_backup_id_update ( MYSQL_THD  , SYS_VAR *  , void *  var_ptr, const void *  save  )

static

Update function for mysqlbackup_backup_id.

mysqlbackup_deinit()

mysql_service_status_t mysqlbackup_deinit

(

)

Deinitialize the component when unloading the component.

Returns

Status

Return values

0	success
non-zero	failure

mysqlbackup_init()

mysql_service_status_t mysqlbackup_init

(

)

Initialize the component when loading the component.

Returns

Status

Return values

0	success
non-zero	failure

register_status_variables()

static bool register_status_variables ( )

static

Register the server status variables defined by this component.

Returns

Status

Return values

false	success
true	failure

register_system_variables()

static bool register_system_variables ( )

static

Register the server system variables defined by this component.

Returns

Status

Return values

false	success
true	failure

register_udfs()

mysql_service_status_t register_udfs

(

)

Register UDF(s)

Registers the plugin's UDFs.

Returns

Status

Return values

0	success
non-zero	failure

REQUIRES_SERVICE() [1/15]

REQUIRES_SERVICE

(

component_sys_variable_register

)

REQUIRES_SERVICE() [2/15]

REQUIRES_SERVICE

(

component_sys_variable_unregister

)

REQUIRES_SERVICE() [3/15]

REQUIRES_SERVICE

(

global_grants_check

)

REQUIRES_SERVICE() [4/15]

REQUIRES_SERVICE

(

log_builtins

)

REQUIRES_SERVICE() [5/15]

REQUIRES_SERVICE

(

log_builtins_string

)

REQUIRES_SERVICE() [6/15]

REQUIRES_SERVICE

(

mysql_current_thread_reader

)

REQUIRES_SERVICE() [7/15]

REQUIRES_SERVICE

(

mysql_page_track

)

REQUIRES_SERVICE() [8/15]

REQUIRES_SERVICE

(

mysql_runtime_error

)

REQUIRES_SERVICE() [9/15]

REQUIRES_SERVICE

(

mysql_security_context_options

)

REQUIRES_SERVICE() [10/15]

REQUIRES_SERVICE

(

mysql_system_variable_reader

)

REQUIRES_SERVICE() [11/15]

REQUIRES_SERVICE

(

mysql_thd_security_context

)

REQUIRES_SERVICE() [12/15]

REQUIRES_SERVICE

(

psi_memory_v2

)

REQUIRES_SERVICE() [13/15]

REQUIRES_SERVICE

(

registry

)

A list of dependencies.

The dynamic_loader fetches the references for the below services at the component load time and disposes off them at unload.

REQUIRES_SERVICE() [14/15]

REQUIRES_SERVICE

(

status_variable_registration

)

REQUIRES_SERVICE() [15/15]

REQUIRES_SERVICE

(

udf_registration

)

REQUIRES_SERVICE_PLACEHOLDER() [1/14]

REQUIRES_SERVICE_PLACEHOLDER

(

component_sys_variable_register

)

REQUIRES_SERVICE_PLACEHOLDER() [2/14]

REQUIRES_SERVICE_PLACEHOLDER

(

component_sys_variable_unregister

)

REQUIRES_SERVICE_PLACEHOLDER() [3/14]

REQUIRES_SERVICE_PLACEHOLDER

(

global_grants_check

)

REQUIRES_SERVICE_PLACEHOLDER() [4/14]

REQUIRES_SERVICE_PLACEHOLDER

(

log_builtins

)

A block for specifying dependencies of this Component.

Note that for each dependency we need to have a placeholder, a extern to placeholder in header file of the Component, and an entry on requires list below.

REQUIRES_SERVICE_PLACEHOLDER() [5/14]

REQUIRES_SERVICE_PLACEHOLDER

(

log_builtins_string

)

REQUIRES_SERVICE_PLACEHOLDER() [6/14]

REQUIRES_SERVICE_PLACEHOLDER

(

mysql_current_thread_reader

)

REQUIRES_SERVICE_PLACEHOLDER() [7/14]

REQUIRES_SERVICE_PLACEHOLDER

(

mysql_page_track

)

REQUIRES_SERVICE_PLACEHOLDER() [8/14]

REQUIRES_SERVICE_PLACEHOLDER

(

mysql_runtime_error

)

REQUIRES_SERVICE_PLACEHOLDER() [9/14]

REQUIRES_SERVICE_PLACEHOLDER

(

mysql_security_context_options

)

REQUIRES_SERVICE_PLACEHOLDER() [10/14]

REQUIRES_SERVICE_PLACEHOLDER

(

mysql_system_variable_reader

)

REQUIRES_SERVICE_PLACEHOLDER() [11/14]

REQUIRES_SERVICE_PLACEHOLDER

(

mysql_thd_security_context

)

REQUIRES_SERVICE_PLACEHOLDER() [12/14]

REQUIRES_SERVICE_PLACEHOLDER

(

psi_memory_v2

)

REQUIRES_SERVICE_PLACEHOLDER() [13/14]

REQUIRES_SERVICE_PLACEHOLDER

(

status_variable_registration

)

REQUIRES_SERVICE_PLACEHOLDER() [14/14]

REQUIRES_SERVICE_PLACEHOLDER

(

udf_registration

)

unregister_status_variables()

static bool unregister_status_variables ( )

static

Unregister the server status variables defined by this component.

Returns

Status

Return values

false	success
true	failure

unregister_system_variables()

static bool unregister_system_variables ( )

static

Unregister the server system variables defined by this component.

Returns

Status

Return values

false	success
true	failure

unregister_udfs()

mysql_service_status_t unregister_udfs

(

)

Unregister UDF(s)

Unregisters the plugin's UDFs.

Returns

Status

Return values

0	success
non-zero	failure

Variable Documentation

log_bi

const mysql_service_log_builtins_t* log_bi

Types for the logging service.

accessor built-ins

log_bs

const mysql_service_log_builtins_string_t* log_bs

string built-ins

mysql_component_mysqlbackup

mysql_component_t mysql_component_mysqlbackup

Initial value:

= {    "mysql:mysqlbackup" , __mysqlbackup_provides, __mysqlbackup_requires,   __mysqlbackup_metadata,
mysqlbackup_init, mysqlbackup_deinit, }

Declaration of the Component.

mysqlbackup_backup_id

char* mysqlbackup_backup_id = nullptr

mysqlbackup_component_sys_var_registered

std::atomic<bool> mysqlbackup_component_sys_var_registered {false}

static

mysqlbackup_component_version

char* mysqlbackup_component_version {nullptr}

static

This file contains a definition of the mysqlbackup component.

mysqlbackup_status_variables

SHOW_VAR mysqlbackup_status_variables[]

static

Initial value:

= {
    {Backup_comp_constants::backup_component_version,
     (char *)&mysqlbackup_component_version, SHOW_CHAR_PTR, SHOW_SCOPE_GLOBAL},
    {nullptr, nullptr, SHOW_LONG, SHOW_SCOPE_GLOBAL}}