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#ifndef _EVENT_TIMED_H_
#define _EVENT_TIMED_H_
/* Copyright (C) 2004-2006 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#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_COMPILE_ERROR -19
#define EVEX_GENERAL_ERROR -20
#define EVEX_BAD_IDENTIFIER -21
#define EVEX_BODY_TOO_LONG -22
#define EVEX_BAD_PARAMS -23
#define EVEX_NOT_RUNNING -24
#define EVEX_MICROSECOND_UNSUP -25
#define EVEX_CANT_KILL -26
#define EVENT_EXEC_NO_MORE (1L << 0)
#define EVENT_NOT_USED (1L << 1)
#define EVENT_FREE_WHEN_FINISHED (1L << 2)
class sp_head;
class Event_timed
{
Event_timed(const Event_timed &); /* Prevent use of these */
void operator=(Event_timed &);
my_bool in_spawned_thread;
ulong locked_by_thread_id;
my_bool running;
ulong thread_id;
pthread_mutex_t LOCK_running;
pthread_cond_t COND_finished;
bool status_changed;
bool last_executed_changed;
public:
enum enum_status
{
ENABLED = 1,
DISABLED
};
enum enum_on_completion
{
ON_COMPLETION_DROP = 1,
ON_COMPLETION_PRESERVE
};
TIME last_executed;
LEX_STRING dbname;
LEX_STRING name;
LEX_STRING body;
LEX_STRING definer_user;
LEX_STRING definer_host;
LEX_STRING definer;// combination of user and host
LEX_STRING comment;
TIME starts;
TIME ends;
TIME execute_at;
my_bool starts_null;
my_bool ends_null;
my_bool execute_at_null;
longlong expression;
interval_type interval;
ulonglong created;
ulonglong modified;
enum enum_on_completion on_completion;
enum enum_status status;
sp_head *sphead;
ulong sql_mode;
const uchar *body_begin;
bool dropped;
bool free_sphead_on_delete;
uint flags;//all kind of purposes
static void *operator new(size_t size)
{
void *p;
DBUG_ENTER("Event_timed::new(size)");
p= my_malloc(size, MYF(0));
DBUG_PRINT("info", ("alloc_ptr=0x%lx", p));
DBUG_RETURN(p);
}
static void *operator new(size_t size, MEM_ROOT *mem_root)
{ return (void*) alloc_root(mem_root, (uint) size); }
static void operator delete(void *ptr, size_t size)
{
DBUG_ENTER("Event_timed::delete(ptr,size)");
DBUG_PRINT("enter", ("free_ptr=0x%lx", ptr));
TRASH(ptr, size);
my_free((gptr) ptr, MYF(0));
DBUG_VOID_RETURN;
}
static void operator delete(void *ptr, MEM_ROOT *mem_root)
{
/*
Don't free the memory it will be done by the mem_root but
we need to call the destructor because we free other resources
which are not allocated on the root but on the heap, or we
deinit mutexes.
*/
DBUG_ASSERT(0);
}
Event_timed();
~Event_timed();
void
init();
void
deinit_mutexes();
int
init_definer(THD *thd);
int
init_execute_at(THD *thd, Item *expr);
int
init_interval(THD *thd, Item *expr, interval_type new_interval);
void
init_name(THD *thd, sp_name *spn);
int
init_starts(THD *thd, Item *starts);
int
init_ends(THD *thd, Item *ends);
void
init_body(THD *thd);
void
init_comment(THD *thd, LEX_STRING *set_comment);
int
load_from_row(MEM_ROOT *mem_root, TABLE *table);
bool
compute_next_execution_time();
int
drop(THD *thd);
void
mark_last_executed(THD *thd);
bool
update_fields(THD *thd);
int
get_create_event(THD *thd, String *buf);
int
execute(THD *thd, MEM_ROOT *mem_root);
int
compile(THD *thd, MEM_ROOT *mem_root);
bool
is_running();
int
spawn_now(void * (*thread_func)(void*), void *arg);
bool
spawn_thread_finish(THD *thd);
void
free_sp();
bool
has_equal_db(Event_timed *etn);
int
kill_thread(THD *thd);
void
set_thread_id(ulong tid) { thread_id= tid; }
};
#endif /* _EVENT_H_ */
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