Merge baker@bk-internal.mysql.com:/home/bk/mysql-5.1-new

into  zim.(none):/home/brian/mysql/archive-5.1

libmysqld/event.h

-/* -*- C++ -*- */
-#ifndef _EVENT_H_
-#define _EVENT_H_
-#include "sp_head.h"
-
-
-extern ulong opt_event_executor;
-
-#define EVEX_OK                 0
-#define EVEX_KEY_NOT_FOUND     -1
-#define EVEX_OPEN_TABLE_FAILED -2
-#define EVEX_WRITE_ROW_FAILED  -3
-#define EVEX_DELETE_ROW_FAILED -4
-#define EVEX_GET_FIELD_FAILED  -5
-#define EVEX_PARSE_ERROR       -6
-#define EVEX_INTERNAL_ERROR    -7
-#define EVEX_NO_DB_ERROR       -8
-#define EVEX_GENERAL_ERROR     -9
-#define EVEX_BAD_PARAMS        -10
-#define EVEX_NOT_RUNNING       -11
-
-#define EVENT_EXEC_NO_MORE	(1L << 0)
-#define EVENT_NOT_USED	(1L << 1)
-
-
-enum enum_event_on_completion
-{ 
-  MYSQL_EVENT_ON_COMPLETION_DROP = 1,
-  MYSQL_EVENT_ON_COMPLETION_PRESERVE
-};
-
-enum enum_event_status
-{ 
-  MYSQL_EVENT_ENABLED = 1,
-  MYSQL_EVENT_DISABLED
-};
-
-
-class event_timed
-{
-  event_timed(const event_timed &);	/* Prevent use of these */
-  void operator=(event_timed &);
-
-public:
-  LEX_STRING m_db;
-  LEX_STRING m_name;
-  LEX_STRING m_qname;		// db.name
-  LEX_STRING m_body;
-
-  LEX_STRING m_definer_user;
-  LEX_STRING m_definer_host;
-  LEX_STRING m_definer;// combination of user and host
-
-  LEX_STRING m_comment;
-  TIME m_starts;
-  TIME m_ends;
-  TIME m_execute_at;
-  longlong m_expr;
-  interval_type m_interval;
-  longlong m_created;
-  longlong m_modified;
-  TIME m_last_executed;
-  enum enum_event_on_completion m_on_completion;
-  enum enum_event_status m_status;
-  sp_head *m_sphead;
-
-
-
-  uint m_old_cmq;  // Old CLIENT_MULTI_QUERIES value  
-  const uchar *m_body_begin;
-  
-  bool m_dropped;
-  bool m_free_sphead_on_delete;
-  uint m_flags;//all kind of purposes
-  bool m_last_executed_changed;
-  bool m_status_changed;
-
-  event_timed():m_expr(0), m_created(0), m_modified(0),
-                m_on_completion(MYSQL_EVENT_ON_COMPLETION_DROP),
-                m_status(MYSQL_EVENT_ENABLED), m_sphead(0), m_dropped(false),
-                m_free_sphead_on_delete(true), m_flags(0),
-                m_last_executed_changed(false), m_status_changed(false)
-  { init(); }
- 
-  ~event_timed()
-  {
-    if (m_free_sphead_on_delete)
-	    free_sp();
-  }
-  
-  void
-  init();
-
-  int 
-  init_definer(THD *thd);
-  
-  int
-  init_execute_at(THD *thd, Item *expr);
-
-  int
-  init_interval(THD *thd, Item *expr, interval_type interval);
-
-  void
-  init_name(THD *thd, sp_name *name);
-
-  int
-  init_starts(THD *thd, Item *starts);
-
-  int
-  init_ends(THD *thd, Item *ends);
-  
-  void
-  event_timed::init_body(THD *thd);
-
-  void
-  init_comment(THD *thd, LEX_STRING *comment);
-
-  void
-  set_on_completion_drop(bool drop);
-
-  void
-  set_event_status(bool enabled);
-
-  int
-  load_from_row(MEM_ROOT *mem_root, TABLE *table);
-  
-  bool
-  compute_next_execution_time();  
-
-  void
-  mark_last_executed();
-  
-  bool
-  drop(THD *thd);
-  
-  bool
-  update_fields(THD *thd);
-
-  char *
-  get_show_create_event(THD *thd, uint *length);
-  
-  int
-  execute(THD *thd, MEM_ROOT *mem_root);
-
-  int
-  compile(THD *thd, MEM_ROOT *mem_root);
-  
-  void free_sp()
-  {
-    if (m_sphead)
-    {
-      delete m_sphead;
-      m_sphead= 0;
-    }
-  }
-};
-
-
-int
-evex_create_event(THD *thd, event_timed *et, uint create_options);
-
-int
-evex_update_event(THD *thd, sp_name *name, event_timed *et);
-
-int
-evex_drop_event(THD *thd, event_timed *et, bool drop_if_exists);
-
-
-int
-init_events();
-
-void
-shutdown_events();
-
-/*
-typedef struct st_event_item {
-  my_time_t execute_at;
-  sp_head *proc;
-  char *definer_user;
-  char *definer_host;
-} EVENT_ITEM;
-*/
-
-
-/*
-CREATE TABLE `event` (
-  `db` varchar(64) character set latin1 collate latin1_bin NOT NULL default '',
-  `name` varchar(64) NOT NULL default '',
-  `body` blob NOT NULL,
-  `definer` varchar(77) character set latin1 collate latin1_bin NOT NULL default '',
-  `execute_at` datetime default NULL,
-  `transient_expression` int(11) default NULL,
-  `interval_type` enum('YEAR','QUARTER','MONTH','DAY','HOUR','MINUTE','WEEK',
-              'SECOND','MICROSECOND','YEAR_MONTH','DAY_HOUR','DAY_MINUTE',
-	      'DAY_SECOND','HOUR_MINUTE','HOUR_SECOND','MINUTE_SECOND',
-	      'DAY_MICROSECOND','HOUR_MICROSECOND','MINUTE_MICROSECOND',
-	      'SECOND_MICROSECOND') DEFAULT NULL,
-  `created` timestamp NOT NULL default '0000-00-00 00:00:00',
-  `modified` timestamp NOT NULL default '0000-00-00 00:00:00',
-  `last_executed` datetime default NULL,
-  `starts` datetime default NULL,
-  `ends` datetime default NULL,
-  `status` enum('ENABLED','DISABLED') NOT NULL default 'ENABLED',
-  `on_completion` enum('DROP','PRESERVE') NOT NULL default 'DROP',
-  `comment` varchar(64) character set latin1 collate latin1_bin NOT NULL default '',
-  PRIMARY KEY  (`db`,`name`)
-) ENGINE=MyISAM DEFAULT CHARSET=latin1
-*/
-
-#endif /* _EVENT_H_ */