mysql_system_variable_update_imp.cc File Reference

#include "sql/server_component/mysql_system_variable_update_imp.h"
#include <string.h>
#include <string_view>
#include <mysql/components/minimal_chassis.h>
#include <mysql/components/service_implementation.h>
#include <mysql/components/services/log_builtins.h>
#include <mysql/components/services/mysql_string.h>
#include <mysql/psi/mysql_rwlock.h>
#include <sql/mysqld.h>
#include <sql/set_var.h>
#include <sql/sql_class.h>
#include <sql/sql_lex.h>
#include <sql/sql_list.h>
#include <sql/sys_vars_shared.h>
#include <sql_string.h>
#include "sql/auth/auth_acls.h"
#include "sql/auth/sql_security_ctx.h"
#include "sql/item_func.h"
#include "sql/server_component/set_variables_helper.h"
#include "storing_auto_thd.h"

Functions
enum_var_type	sysvar_type (const char *type_name)
	Return the system variable type given a type name. More...
static bool	prepare_thread_and_validate (Set_variables_helper &hlp, const char *variable_type, my_h_string variable_name, enum_var_type &var_type)
	This is an internal method that handles preparation tasks common for all system variable update service APIs: More...
static bool	common_system_variable_update_set (Set_variables_helper &hlp, enum_var_type var_type, my_h_string variable_base, my_h_string variable_name, Item *variable_value)
	Common system variable update code (used by different variable value types). More...

Function Documentation

common_system_variable_update_set()

static bool common_system_variable_update_set ( Set_variables_helper &  hlp, enum_var_type  var_type, my_h_string  variable_base, my_h_string  variable_name, Item *  variable_value  )

static

Common system variable update code (used by different variable value types).

Parameters

hlp	An execution context
var_type	Enum type matching one of GLOBAL, SESSION, PERSIST, PERSIST_ONLY.
variable_base	MySQL string of the variable prefix, NULL if none.
variable_name	MySQL string of the variable name.
variable_value	Pointer to Item object storing the value of the correct

Return values

false	Success
true	Failure, error set

prepare_thread_and_validate()

static bool prepare_thread_and_validate ( Set_variables_helper &  hlp, const char *  variable_type, my_h_string  variable_name, enum_var_type &  var_type  )

static

This is an internal method that handles preparation tasks common for all system variable update service APIs:

• creates temporary THD for an operation, if needed
• validates that SESSION type is not used with temporary THD

Parameters

hlp	Execution context handle.
variable_type	One of GLOBAL, SESSION, PERSIST, PERSIST_ONLY. For any other value (including NULL), GLOBAL is assumed. SESSION is not supported for a temporary THD.
variable_name	MySQL string of the variable name.
var_type	Reference to output variable type enumeration (avoids parsing type multiple times).

Return values

FALSE	Success
TRUE	Failure, error set

sysvar_type()

enum_var_type sysvar_type

(

const char *

type_name

)

Return the system variable type given a type name.