Events Class Reference

A facade to the functionality of the Event Scheduler. More...

#include <events.h>

Public Types
enum	enum_opt_event_scheduler { EVENTS_OFF, EVENTS_ON, EVENTS_DISABLED }

Static Public Member Functions
static bool	check_if_system_tables_error ()
static bool	start (int *err_no)
static bool	stop ()
static Event_db_repository *	get_db_repository ()
static bool	init (my_bool opt_noacl)
static void	deinit ()
static void	init_mutexes ()
static void	destroy_mutexes ()
static bool	create_event (THD *thd, Event_parse_data *parse_data, bool if_exists)
static bool	update_event (THD *thd, Event_parse_data *parse_data, LEX_STRING *new_dbname, LEX_STRING *new_name)
static bool	drop_event (THD *thd, LEX_STRING dbname, LEX_STRING name, bool if_exists)
static void	drop_schema_events (THD *thd, char *db)
static bool	show_create_event (THD *thd, LEX_STRING dbname, LEX_STRING name)
static int	reconstruct_interval_expression (String *buf, interval_type interval, longlong expression)
static int	fill_schema_events (THD *thd, TABLE_LIST *tables, Item *)
static void	dump_internal_status ()

Static Public Attributes
static ulong	opt_event_scheduler = Events::EVENTS_OFF

Detailed Description

A facade to the functionality of the Event Scheduler.

Every public operation against the scheduler has to be executed via the interface provided by a static method of this class. No instance of this class is ever created and it has no non-static data members.

The life cycle of the Events module is the following:

At server start up: init_mutexes() -> init() When the server is running: create_event(), drop_event(), start_or_stop_event_scheduler(), etc At shutdown: deinit(), destroy_mutexes().

The peculiar initialization and shutdown cycle is an adaptation to the outside server startup/shutdown framework and mimics the rest of MySQL subsystems (ACL, time zone tables, etc).

Definition at line 74 of file events.h.

---

The documentation for this class was generated from the following files:

• sql/events.h
• sql/events.cc