1 /*
2    Copyright (c) 2008, 2011, Oracle and/or its affiliates.
3 
4    This program is free software; you can redistribute it and/or modify
5    it under the terms of the GNU General Public License as published by
6    the Free Software Foundation; version 2 of the License.
7 
8    This program is distributed in the hope that it will be useful,
9    but WITHOUT ANY WARRANTY; without even the implied warranty of
10    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11    GNU General Public License for more details.
12 
13    You should have received a copy of the GNU General Public License
14    along with this program; if not, write to the Free Software
15    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335  USA */
16 
17 #ifndef _EVENT_PARSE_DATA_H_
18 #define _EVENT_PARSE_DATA_H_
19 
20 #include "sql_alloc.h"
21 
22 class Item;
23 class THD;
24 class sp_name;
25 
26 #define EVEX_GET_FIELD_FAILED   -2
27 #define EVEX_BAD_PARAMS         -5
28 #define EVEX_MICROSECOND_UNSUP  -6
29 #define EVEX_MAX_INTERVAL_VALUE 1000000000L
30 
31 class Event_parse_data : public Sql_alloc
32 {
33 public:
34   /*
35     ENABLED = feature can function normally (is turned on)
36     SLAVESIDE_DISABLED = feature is turned off on slave
37     DISABLED = feature is turned off
38   */
39   enum enum_status
40   {
41     ENABLED = 1,
42     DISABLED,
43     SLAVESIDE_DISABLED
44   };
45 
46   enum enum_on_completion
47   {
48     /*
49       On CREATE EVENT, DROP is the DEFAULT as per the docs.
50       On ALTER  EVENT, "no change" is the DEFAULT.
51     */
52     ON_COMPLETION_DEFAULT = 0,
53     ON_COMPLETION_DROP,
54     ON_COMPLETION_PRESERVE
55   };
56 
57   int on_completion;
58   int status;
59   bool status_changed;
60   uint32 originator;
61   /*
62     do_not_create will be set if STARTS time is in the past and
63     on_completion == ON_COMPLETION_DROP.
64   */
65   bool do_not_create;
66 
67   bool body_changed;
68 
69   LEX_CSTRING dbname;
70   LEX_CSTRING name;
71   LEX_CSTRING definer;// combination of user and host
72   LEX_CSTRING comment;
73 
74   Item* item_starts;
75   Item* item_ends;
76   Item* item_execute_at;
77 
78   my_time_t starts;
79   my_time_t ends;
80   my_time_t execute_at;
81   bool starts_null;
82   bool ends_null;
83   bool execute_at_null;
84 
85   sp_name *identifier;
86   Item* item_expression;
87   longlong expression;
88   interval_type interval;
89 
90   static Event_parse_data *
91   new_instance(THD *thd);
92 
93   bool
94   check_parse_data(THD *thd);
95 
96   bool
97   check_dates(THD *thd, int previous_on_completion);
98 
99 private:
100 
101   void
102   init_definer(THD *thd);
103 
104   void
105   init_name(THD *thd, sp_name *spn);
106 
107   int
108   init_execute_at(THD *thd);
109 
110   int
111   init_interval(THD *thd);
112 
113   int
114   init_starts(THD *thd);
115 
116   int
117   init_ends(THD *thd);
118 
119   Event_parse_data();
120   ~Event_parse_data();
121 
122   void
123   report_bad_value(const char *item_name, Item *bad_item);
124 
125   void
126   check_if_in_the_past(THD *thd, my_time_t ltime_utc);
127 
128   Event_parse_data(const Event_parse_data &);	/* Prevent use of these */
129   void check_originator_id(THD *thd);
130   void operator=(Event_parse_data &);
131 };
132 #endif
133