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Commit d1056a7c authored by andrey@lmy004's avatar andrey@lmy004
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Merge ahristov@bk-internal.mysql.com:/home/bk/mysql-5.1-new 

into lmy004.:/work/mysql-5.1-bug16537
parents 3fb0e543 780d6344
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Showing with 378 additions and 253 deletions
mysql-test/r/events.result
View file @ d1056a7c
......@@ -37,6 +37,54 @@ alter event event3 rename to event2;
drop event event2;
create event event2 on schedule every 2 second starts now() ends date_add(now(), interval 5 hour) comment "some" DO begin end;
drop event event2;
CREATE EVENT event_starts_test ON SCHEDULE EVERY 10 SECOND COMMENT "" DO SELECT 1;
SHOW EVENTS;
Db Name Definer Type Execute at Interval value Interval field Starts Ends Status
events_test event_starts_test root@localhost RECURRING NULL 10 SECOND # # ENABLED
SELECT starts IS NULL, ends IS NULL, comment FROM mysql.event WHERE db='events_test' AND name='event_starts_test';
starts IS NULL ends IS NULL comment
0 1
ALTER EVENT event_starts_test ON SCHEDULE AT '2020-02-02 20:00:02';
SHOW EVENTS;
Db Name Definer Type Execute at Interval value Interval field Starts Ends Status
events_test event_starts_test root@localhost ONE TIME 2020-02-02 17:00:02 NULL NULL # # ENABLED
SELECT starts IS NULL, ends IS NULL, comment FROM mysql.event WHERE db='events_test' AND name='event_starts_test';
starts IS NULL ends IS NULL comment
1 1
ALTER EVENT event_starts_test COMMENT "non-empty comment";
SHOW EVENTS;
Db Name Definer Type Execute at Interval value Interval field Starts Ends Status
events_test event_starts_test root@localhost ONE TIME 2020-02-02 17:00:02 NULL NULL # # ENABLED
SELECT starts IS NULL, ends IS NULL, comment FROM mysql.event WHERE db='events_test' AND name='event_starts_test';
starts IS NULL ends IS NULL comment
1 1 non-empty comment
ALTER EVENT event_starts_test COMMENT "";
SHOW EVENTS;
Db Name Definer Type Execute at Interval value Interval field Starts Ends Status
events_test event_starts_test root@localhost ONE TIME 2020-02-02 17:00:02 NULL NULL # # ENABLED
SELECT starts IS NULL, ends IS NULL, comment FROM mysql.event WHERE db='events_test' AND name='event_starts_test';
starts IS NULL ends IS NULL comment
1 1
DROP EVENT event_starts_test;
CREATE EVENT event_starts_test ON SCHEDULE EVERY 20 SECOND STARTS '2020-02-02 20:00:02' ENDS '2022-02-02 20:00:02' DO SELECT 2;
SHOW EVENTS;
Db Name Definer Type Execute at Interval value Interval field Starts Ends Status
events_test event_starts_test root@localhost RECURRING NULL 20 SECOND # # ENABLED
SELECT starts IS NULL, ends IS NULL, comment FROM mysql.event WHERE db='events_test' AND name='event_starts_test';
starts IS NULL ends IS NULL comment
0 0
ALTER EVENT event_starts_test COMMENT "non-empty comment";
SHOW EVENTS;
Db Name Definer Type Execute at Interval value Interval field Starts Ends Status
events_test event_starts_test root@localhost RECURRING NULL 20 SECOND # # ENABLED
SELECT starts IS NULL, ends IS NULL, comment FROM mysql.event WHERE db='events_test' AND name='event_starts_test';
starts IS NULL ends IS NULL comment
0 0 non-empty comment
ALTER EVENT event_starts_test COMMENT "";
SHOW EVENTS;
Db Name Definer Type Execute at Interval value Interval field Starts Ends Status
events_test event_starts_test root@localhost RECURRING NULL 20 SECOND # # ENABLED
DROP EVENT event_starts_test;
create event e_43 on schedule every 1 second do set @a = 5;
set global event_scheduler = 1;
alter event e_43 do alter event e_43 do set @a = 4;
......
mysql-test/t/events.test
View file @ d1056a7c
......@@ -48,6 +48,38 @@ drop event event2;
create event event2 on schedule every 2 second starts now() ends date_add(now(), interval 5 hour) comment "some" DO begin end;
drop event event2;
# BUG #16537 (Events: mysql.event.starts is null)
CREATE EVENT event_starts_test ON SCHEDULE EVERY 10 SECOND COMMENT "" DO SELECT 1;
--replace_column 8 # 9 #
SHOW EVENTS;
SELECT starts IS NULL, ends IS NULL, comment FROM mysql.event WHERE db='events_test' AND name='event_starts_test';
ALTER EVENT event_starts_test ON SCHEDULE AT '2020-02-02 20:00:02';
--replace_column 8 # 9 #
SHOW EVENTS;
SELECT starts IS NULL, ends IS NULL, comment FROM mysql.event WHERE db='events_test' AND name='event_starts_test';
ALTER EVENT event_starts_test COMMENT "non-empty comment";
--replace_column 8 # 9 #
SHOW EVENTS;
SELECT starts IS NULL, ends IS NULL, comment FROM mysql.event WHERE db='events_test' AND name='event_starts_test';
ALTER EVENT event_starts_test COMMENT "";
--replace_column 8 # 9 #
SHOW EVENTS;
SELECT starts IS NULL, ends IS NULL, comment FROM mysql.event WHERE db='events_test' AND name='event_starts_test';
DROP EVENT event_starts_test;
CREATE EVENT event_starts_test ON SCHEDULE EVERY 20 SECOND STARTS '2020-02-02 20:00:02' ENDS '2022-02-02 20:00:02' DO SELECT 2;
--replace_column 8 # 9 #
SHOW EVENTS;
SELECT starts IS NULL, ends IS NULL, comment FROM mysql.event WHERE db='events_test' AND name='event_starts_test';
ALTER EVENT event_starts_test COMMENT "non-empty comment";
--replace_column 8 # 9 #
SHOW EVENTS;
SELECT starts IS NULL, ends IS NULL, comment FROM mysql.event WHERE db='events_test' AND name='event_starts_test';
ALTER EVENT event_starts_test COMMENT "";
--replace_column 8 # 9 #
SHOW EVENTS;
DROP EVENT event_starts_test;
#
#
create event e_43 on schedule every 1 second do set @a = 5;
set global event_scheduler = 1;
--sleep 2
......
sql/event.cc
View file @ d1056a7c
......@@ -69,7 +69,7 @@ time_t mysql_event_last_create_time= 0L;
static TABLE_FIELD_W_TYPE event_table_fields[EVEX_FIELD_COUNT] = {
{
{(char *) STRING_WITH_LEN("db")},
{(char *) STRING_WITH_LEN("db")},
{(char *) STRING_WITH_LEN("char(64)")},
{(char *) STRING_WITH_LEN("utf8")}
},
......@@ -120,6 +120,7 @@ static TABLE_FIELD_W_TYPE event_table_fields[EVEX_FIELD_COUNT] = {
{
{(char *) STRING_WITH_LEN("last_executed")},
{(char *) STRING_WITH_LEN("datetime")},
{NULL, 0}
},
{
{(char *) STRING_WITH_LEN("starts")},
......@@ -162,25 +163,25 @@ static TABLE_FIELD_W_TYPE event_table_fields[EVEX_FIELD_COUNT] = {
LEX_STRING interval_type_to_name[] = {
{(char *) STRING_WITH_LEN("YEAR")},
{(char *) STRING_WITH_LEN("QUARTER")},
{(char *) STRING_WITH_LEN("MONTH")},
{(char *) STRING_WITH_LEN("DAY")},
{(char *) STRING_WITH_LEN("HOUR")},
{(char *) STRING_WITH_LEN("MINUTE")},
{(char *) STRING_WITH_LEN("WEEK")},
{(char *) STRING_WITH_LEN("SECOND")},
{(char *) STRING_WITH_LEN("MICROSECOND")},
{(char *) STRING_WITH_LEN("YEAR_MONTH")},
{(char *) STRING_WITH_LEN("DAY_HOUR")},
{(char *) STRING_WITH_LEN("DAY_MINUTE")},
{(char *) STRING_WITH_LEN("DAY_SECOND")},
{(char *) STRING_WITH_LEN("HOUR_MINUTE")},
{(char *) STRING_WITH_LEN("HOUR_SECOND")},
{(char *) STRING_WITH_LEN("MINUTE_SECOND")},
{(char *) STRING_WITH_LEN("DAY_MICROSECOND")},
{(char *) STRING_WITH_LEN("HOUR_MICROSECOND")},
{(char *) STRING_WITH_LEN("MINUTE_MICROSECOND")},
{(char *) STRING_WITH_LEN("YEAR")},
{(char *) STRING_WITH_LEN("QUARTER")},
{(char *) STRING_WITH_LEN("MONTH")},
{(char *) STRING_WITH_LEN("DAY")},
{(char *) STRING_WITH_LEN("HOUR")},
{(char *) STRING_WITH_LEN("MINUTE")},
{(char *) STRING_WITH_LEN("WEEK")},
{(char *) STRING_WITH_LEN("SECOND")},
{(char *) STRING_WITH_LEN("MICROSECOND")},
{(char *) STRING_WITH_LEN("YEAR_MONTH")},
{(char *) STRING_WITH_LEN("DAY_HOUR")},
{(char *) STRING_WITH_LEN("DAY_MINUTE")},
{(char *) STRING_WITH_LEN("DAY_SECOND")},
{(char *) STRING_WITH_LEN("HOUR_MINUTE")},
{(char *) STRING_WITH_LEN("HOUR_SECOND")},
{(char *) STRING_WITH_LEN("MINUTE_SECOND")},
{(char *) STRING_WITH_LEN("DAY_MICROSECOND")},
{(char *) STRING_WITH_LEN("HOUR_MICROSECOND")},
{(char *) STRING_WITH_LEN("MINUTE_MICROSECOND")},
{(char *) STRING_WITH_LEN("SECOND_MICROSECOND")}
};
......@@ -188,10 +189,10 @@ LEX_STRING interval_type_to_name[] = {
/*
Inits the scheduler queue - prioritized queue from mysys/queue.c
Synopsis
evex_queue_init()
queue - pointer the the memory to be initialized as queue. has to be
allocated from the caller
......@@ -211,10 +212,10 @@ evex_queue_init(EVEX_QUEUE_TYPE *queue)
/*
Compares 2 LEX strings regarding case.
Synopsis
my_time_compare()
s - first LEX_STRING
t - second LEX_STRING
cs - charset
......@@ -223,7 +224,7 @@ evex_queue_init(EVEX_QUEUE_TYPE *queue)
-1 - s < t
0 - s == t
1 - s > t
Notes
TIME.second_part is not considered during comparison
*/
......@@ -237,18 +238,18 @@ int sortcmp_lex_string(LEX_STRING s, LEX_STRING t, CHARSET_INFO *cs)
/*
Compares 2 TIME structures
Synopsis
my_time_compare()
a - first TIME
b - second time
RETURNS:
-1 - a < b
0 - a == b
1 - a > b
Notes
TIME.second_part is not considered during comparison
*/
......@@ -276,18 +277,18 @@ my_time_compare(TIME *a, TIME *b)
/*
Compares the execute_at members of 2 event_timed instances
Synopsis
event_timed_compare()
a - first event_timed object
b - second event_timed object
RETURNS:
-1 - a->execute_at < b->execute_at
0 - a->execute_at == b->execute_at
1 - a->execute_at > b->execute_at
Notes
execute_at.second_part is not considered during comparison
*/
......@@ -303,14 +304,14 @@ event_timed_compare(event_timed *a, event_timed *b)
Compares the execute_at members of 2 event_timed instances.
Used as callback for the prioritized queue when shifting
elements inside.
Synopsis
event_timed_compare()
vptr - not used (set it to NULL)
a - first event_timed object
b - second event_timed object
RETURNS:
-1 - a->execute_at < b->execute_at
0 - a->execute_at == b->execute_at
......@@ -333,18 +334,16 @@ event_timed_compare_q(void *vptr, byte* a, byte *b)
For
YEAR_MONTH - expression is in months
DAY_MINUTE - expression is in minutes
Synopsis
event_reconstruct_interval_expression()
buf - preallocated String buffer to add the value to
interval - the interval type (for instance YEAR_MONTH)
expression - the value in the lowest entity
RETURNS
0 - OK
1 - Error
*/
int
......@@ -369,7 +368,7 @@ event_reconstruct_interval_expression(String *buf,
goto common_1_lev_code;
case INTERVAL_HOUR_MINUTE:
case INTERVAL_MINUTE_SECOND:
multipl= 60;
multipl= 60;
common_1_lev_code:
buf->append('\'');
end= longlong10_to_str(expression/multipl, tmp_buff, 10);
......@@ -473,9 +472,9 @@ common_1_lev_code:
table The table pointer
RETURN
1 Cannot lock table
1 Cannot lock table
2 The table is corrupted - different number of fields
0 OK
0 OK
*/
int
......@@ -590,11 +589,11 @@ evex_db_find_event_by_name(THD *thd, const LEX_STRING dbname,
thd THD
table the row to fill out
et Event's data
Returns
0 - ok
EVEX_GENERAL_ERROR - bad data
EVEX_GET_FIELD_FAILED - field count does not match. table corrupted?
EVEX_GET_FIELD_FAILED - field count does not match. table corrupted?
DESCRIPTION
Used both when an event is created and when it is altered.
......@@ -607,9 +606,9 @@ evex_fill_row(THD *thd, TABLE *table, event_timed *et, my_bool is_update)
DBUG_ENTER("evex_fill_row");
DBUG_PRINT("info", ("dbname=[%s]", et->dbname.str));
DBUG_PRINT("info", ("name =[%s]", et->name.str));
DBUG_PRINT("info", ("body =[%s]", et->body.str));
DBUG_PRINT("info", ("dbname=[%s]", et->dbname.str));
DBUG_PRINT("info", ("name =[%s]", et->name.str));
DBUG_PRINT("info", ("body =[%s]", et->body.str));
if (table->field[field_num= EVEX_FIELD_DB]->
store(et->dbname.str, et->dbname.length, system_charset_info))
......@@ -619,7 +618,7 @@ evex_fill_row(THD *thd, TABLE *table, event_timed *et, my_bool is_update)
store(et->name.str, et->name.length, system_charset_info))
goto trunc_err;
// both ON_COMPLETION and STATUS are NOT NULL thus not calling set_notnull()
/* both ON_COMPLETION and STATUS are NOT NULL thus not calling set_notnull() */
table->field[EVEX_FIELD_ON_COMPLETION]->store((longlong)et->on_completion);
table->field[EVEX_FIELD_STATUS]->store((longlong)et->status);
......@@ -637,20 +636,6 @@ evex_fill_row(THD *thd, TABLE *table, event_timed *et, my_bool is_update)
goto trunc_err;
}
if (et->starts.year)
{
table->field[EVEX_FIELD_STARTS]->set_notnull();// set NULL flag to OFF
table->field[EVEX_FIELD_STARTS]->
store_time(&et->starts, MYSQL_TIMESTAMP_DATETIME);
}
if (et->ends.year)
{
table->field[EVEX_FIELD_ENDS]->set_notnull();
table->field[EVEX_FIELD_ENDS]->
store_time(&et->ends, MYSQL_TIMESTAMP_DATETIME);
}
if (et->expression)
{
table->field[EVEX_FIELD_INTERVAL_EXPR]->set_notnull();
......@@ -664,36 +649,54 @@ evex_fill_row(THD *thd, TABLE *table, event_timed *et, my_bool is_update)
table->field[EVEX_FIELD_TRANSIENT_INTERVAL]->store((longlong)et->interval+1);
table->field[EVEX_FIELD_EXECUTE_AT]->set_null();
if (!et->starts_null)
{
table->field[EVEX_FIELD_STARTS]->set_notnull();
table->field[EVEX_FIELD_STARTS]->
store_time(&et->starts, MYSQL_TIMESTAMP_DATETIME);
}
if (!et->ends_null)
{
table->field[EVEX_FIELD_ENDS]->set_notnull();
table->field[EVEX_FIELD_ENDS]->
store_time(&et->ends, MYSQL_TIMESTAMP_DATETIME);
}
}
else if (et->execute_at.year)
{
// fix_fields already called in init_execute_at
table->field[EVEX_FIELD_INTERVAL_EXPR]->set_null();
table->field[EVEX_FIELD_TRANSIENT_INTERVAL]->set_null();
table->field[EVEX_FIELD_STARTS]->set_null();
table->field[EVEX_FIELD_ENDS]->set_null();
table->field[EVEX_FIELD_EXECUTE_AT]->set_notnull();
table->field[EVEX_FIELD_EXECUTE_AT]->store_time(&et->execute_at,
MYSQL_TIMESTAMP_DATETIME);
table->field[EVEX_FIELD_TRANSIENT_INTERVAL]->set_null();
MYSQL_TIMESTAMP_DATETIME);
}
else
{
DBUG_ASSERT(is_update);
// it is normal to be here when the action is update
// this is an error if the action is create. something is borked
/*
it is normal to be here when the action is update
this is an error if the action is create. something is borked
*/
}
((Field_timestamp *)table->field[EVEX_FIELD_MODIFIED])->set_time();
if (et->comment.length)
if (table->field[field_num= EVEX_FIELD_COMMENT]->
store(et->comment.str, et->comment.length, system_charset_info))
if (et->comment.str)
{
if (table->field[field_num= EVEX_FIELD_COMMENT]->store(et->comment.str,
et->comment.length,
system_charset_info))
goto trunc_err;
}
DBUG_RETURN(0);
trunc_err:
my_error(ER_EVENT_DATA_TOO_LONG, MYF(0));
my_error(ER_EVENT_DATA_TOO_LONG, MYF(0), table->field[field_num]->field_name);
DBUG_RETURN(EVEX_GENERAL_ERROR);
}
......@@ -707,12 +710,12 @@ trunc_err:
et event_timed object containing information for the event
create_if_not - if an warning should be generated in case event exists
rows_affected - how many rows were affected
Return value
0 - OK
EVEX_GENERAL_ERROR - Failure
DESCRIPTION
Creates an event. Relies on evex_fill_row which is shared with
Creates an event. Relies on evex_fill_row which is shared with
db_update_event. The name of the event is inside "et".
*/
......@@ -735,16 +738,16 @@ db_create_event(THD *thd, event_timed *et, my_bool create_if_not,
my_error(ER_EVENT_OPEN_TABLE_FAILED, MYF(0));
goto err;
}
DBUG_PRINT("info", ("check existance of an event with the same name"));
if (!evex_db_find_event_aux(thd, et, table))
{
if (create_if_not)
{
push_warning_printf(thd, MYSQL_ERROR::WARN_LEVEL_NOTE,
ER_EVENT_ALREADY_EXISTS, ER(ER_EVENT_ALREADY_EXISTS),
et->name.str);
goto ok;
ER_EVENT_ALREADY_EXISTS, ER(ER_EVENT_ALREADY_EXISTS),
et->name.str);
goto ok;
}
my_error(ER_EVENT_ALREADY_EXISTS, MYF(0), et->name.str);
goto err;
......@@ -756,8 +759,8 @@ db_create_event(THD *thd, event_timed *et, my_bool create_if_not,
my_error(ER_BAD_DB_ERROR, MYF(0));
goto err;
}
restore_record(table, s->default_values); // Get default values for fields
restore_record(table, s->default_values); // Get default values for fields
if (system_charset_info->cset->numchars(system_charset_info, et->dbname.str,
et->dbname.str + et->dbname.length)
......@@ -783,7 +786,7 @@ db_create_event(THD *thd, event_timed *et, my_bool create_if_not,
if (!(et->expression) && !(et->execute_at.year))
{
DBUG_PRINT("error", ("neither expression nor execute_at are set!"));
my_error(ER_EVENT_NEITHER_M_EXPR_NOR_M_AT, MYF(0));
my_error(ER_EVENT_NEITHER_M_EXPR_NOR_M_AT, MYF(0));
goto err;
}
......@@ -797,7 +800,10 @@ db_create_event(THD *thd, event_timed *et, my_bool create_if_not,
((Field_timestamp *)table->field[EVEX_FIELD_CREATED])->set_time();
// evex_fill_row() calls my_error() in case of error so no need to handle it here
/*
evex_fill_row() calls my_error() in case of error so no need to
handle it here
*/
if ((ret= evex_fill_row(thd, table, et, false)))
goto err;
......@@ -806,7 +812,8 @@ db_create_event(THD *thd, event_timed *et, my_bool create_if_not,
my_error(ER_EVENT_STORE_FAILED, MYF(0), et->name.str, ret);
goto err;
}
#ifdef USE_THIS_CODE_AS_TEMPLATE_WHEN_EVENT_REPLICATION_IS_AGREED
if (mysql_bin_log.is_open())
{
thd->clear_error();
......@@ -814,7 +821,8 @@ db_create_event(THD *thd, event_timed *et, my_bool create_if_not,
thd->binlog_query(THD::MYSQL_QUERY_TYPE,
thd->query, thd->query_length, FALSE, FALSE);
}
#endif
*rows_affected= 1;
ok:
if (dbchanged)
......@@ -840,7 +848,7 @@ err:
thd THD
sp_name the name of the event to alter
et event's data
NOTES
sp_name is passed since this is the name of the event to
alter in case of RENAME TO.
......@@ -865,7 +873,7 @@ db_update_event(THD *thd, event_timed *et, sp_name *new_name)
goto err;
}
// first look whether we overwrite
/* first look whether we overwrite */
if (new_name)
{
if (!sortcmp_lex_string(et->name, new_name->m_name, system_charset_info) &&
......@@ -891,19 +899,18 @@ db_update_event(THD *thd, event_timed *et, sp_name *new_name)
if (EVEX_KEY_NOT_FOUND == evex_db_find_event_aux(thd, et, table))
{
my_error(ER_EVENT_DOES_NOT_EXIST, MYF(0), et->name.str);
goto err;
goto err;
}
store_record(table,record[1]);
// Don't update create on row update.
/* Don't update create on row update. */
table->timestamp_field_type= TIMESTAMP_NO_AUTO_SET;
// evex_fill_row() calls my_error() in case of error so no need to handle it here
/* evex_fill_row() calls my_error() in case of error so no need to handle it here */
if ((ret= evex_fill_row(thd, table, et, true)))
goto err;
if (new_name)
{
table->field[EVEX_FIELD_DB]->
......@@ -918,7 +925,7 @@ db_update_event(THD *thd, event_timed *et, sp_name *new_name)
goto err;
}
// close mysql.event or we crash later when loading the event from disk
/* close mysql.event or we crash later when loading the event from disk */
close_thread_tables(thd);
DBUG_RETURN(0);
......@@ -940,7 +947,7 @@ err:
definer who owns the event
ett event's data if event is found
tbl TABLE object to use when not NULL
NOTES
1) Use sp_name for look up, return in **ett if found
2) tbl is not closed at exit
......@@ -995,7 +1002,7 @@ done:
delete et;
et= 0;
}
// don't close the table if we haven't opened it ourselves
/* don't close the table if we haven't opened it ourselves */
if (!tbl && table)
close_thread_tables(thd);
*ett= et;
......@@ -1013,11 +1020,10 @@ done:
spn the name of the event to alter
definer who is the owner
use_lock whether to obtain a lock on LOCK_event_arrays or not
RETURN VALUE
0 - OK
< 0 - error (in this case underlying functions call my_error()).
*/
static int
......@@ -1036,7 +1042,7 @@ evex_load_and_compile_event(THD * thd, sp_name *spn, LEX_STRING definer,
thd->mem_root= &evex_mem_root;
thd->reset_n_backup_open_tables_state(&backup);
// no need to use my_error() here because db_find_event() has done it
/* no need to use my_error() here because db_find_event() has done it */
ret= db_find_event(thd, spn, &definer, &ett, NULL, NULL);
thd->restore_backup_open_tables_state(&backup);
if (ret)
......@@ -1088,7 +1094,7 @@ done:
ALTER EVENT.
RETURNS
0 - OK (always)
0 OK (always)
*/
static int
......@@ -1111,7 +1117,7 @@ evex_remove_from_cache(LEX_STRING *db, LEX_STRING *name, bool use_lock,
for (i= 0; i < evex_queue_num_elements(EVEX_EQ_NAME); ++i)
{
event_timed *et= evex_queue_element(&EVEX_EQ_NAME, i, event_timed*);
DBUG_PRINT("info", ("[%s.%s]==[%s.%s]?",db->str,name->str, et->dbname.str,
DBUG_PRINT("info", ("[%s.%s]==[%s.%s]?",db->str,name->str, et->dbname.str,
et->name.str));
if (!sortcmp_lex_string(*name, et->name, system_charset_info) &&
!sortcmp_lex_string(*db, et->dbname, system_charset_info))
......@@ -1131,7 +1137,7 @@ evex_remove_from_cache(LEX_STRING *db, LEX_STRING *name, bool use_lock,
}
DBUG_PRINT("evex_remove_from_cache", ("delete from queue"));
evex_queue_delete_element(&EVEX_EQ_NAME, i);
// ok, we have cleaned
/* ok, we have cleaned */
ret= 0;
goto done;
}
......@@ -1155,7 +1161,7 @@ done:
create_options Options specified when in the query. We are
interested whether there is IF NOT EXISTS
rows_affected How many rows were affected
NOTES
- in case there is an event with the same name (db) and
IF NOT EXISTS is specified, an warning is put into the W stack.
......@@ -1185,7 +1191,7 @@ evex_create_event(THD *thd, event_timed *et, uint create_options,
VOID(pthread_mutex_unlock(&LOCK_evex_running));
done:
// No need to close the table, it will be closed in sql_parse::do_command
/* No need to close the table, it will be closed in sql_parse::do_command */
DBUG_RETURN(ret);
}
......@@ -1199,7 +1205,7 @@ done:
thd THD
et event's data
new_name set in case of RENAME TO.
NOTES
et contains data about dbname and event name.
new_name is the new name of the event, if not null (this means
......@@ -1259,7 +1265,6 @@ done:
et event's name
drop_if_exists if set and the event not existing => warning onto the stack
rows_affected affected number of rows is returned heres
*/
int db_drop_event(THD *thd, event_timed *et, bool drop_if_exists,
......@@ -1292,8 +1297,8 @@ int db_drop_event(THD *thd, event_timed *et, bool drop_if_exists,
if (drop_if_exists)
{
push_warning_printf(thd, MYSQL_ERROR::WARN_LEVEL_NOTE,
ER_SP_DOES_NOT_EXIST, ER(ER_SP_DOES_NOT_EXIST),
"Event", et->name.str);
ER_SP_DOES_NOT_EXIST, ER(ER_SP_DOES_NOT_EXIST),
"Event", et->name.str);
ret= 0;
} else
my_error(ER_EVENT_DOES_NOT_EXIST, MYF(0), et->name.str);
......@@ -1338,7 +1343,7 @@ evex_drop_event(THD *thd, event_timed *et, bool drop_if_exists,
if (evex_is_running)
ret= evex_remove_from_cache(&et->dbname, &et->name, true, true);
VOID(pthread_mutex_unlock(&LOCK_evex_running));
if (ret == 1)
ret= 0;
else if (ret == 0)
......@@ -1358,11 +1363,10 @@ evex_drop_event(THD *thd, event_timed *et, bool drop_if_exists,
thd THD
spn the name of the event (db, name)
definer the definer of the event
RETURNS
0 - OK
1 - Error during writing to the wire
*/
int
......@@ -1380,14 +1384,14 @@ evex_show_create_event(THD *thd, sp_name *spn, LEX_STRING definer)
thd->restore_backup_open_tables_state(&backup);
if (!ret && et)
{
{
Protocol *protocol= thd->protocol;
char show_str_buf[768];
String show_str(show_str_buf, sizeof(show_str_buf), system_charset_info);
List<Item> field_list;
byte *sql_mode_str;
ulong sql_mode_len=0;
show_str.length(0);
show_str.set_charset(system_charset_info);
......@@ -1413,19 +1417,18 @@ evex_show_create_event(THD *thd, sp_name *spn, LEX_STRING definer)
protocol->store((char*) sql_mode_str, sql_mode_len, system_charset_info);
protocol->store(show_str.c_ptr(), show_str.length(), system_charset_info);
ret= protocol->write();
send_eof(thd);
}
DBUG_RETURN(ret);
}
/*
evex_drop_db_events - Drops all events in the selected database
thd - Thread
db - ASCIIZ the name of the database
......@@ -1449,7 +1452,6 @@ evex_show_create_event(THD *thd, sp_name *spn, LEX_STRING definer)
spawned and can_spawn() is the right method.
- event_timed::can_spawn() returns false -> being runned ATM
just set the flags so it should drop itself.
*/
int
......@@ -1505,7 +1507,7 @@ evex_drop_db_events(THD *thd, char *db)
else if (ret == EVEX_KEY_NOT_FOUND)
{
sql_print_error("Expected to find event %s.%s of %s on disk-not there.",
et->dbname.str, et->name.str, et->definer.str);
et->dbname.str, et->name.str, et->definer.str);
}
et->free_sp();
delete et;
......@@ -1521,7 +1523,7 @@ evex_drop_db_events(THD *thd, char *db)
}
DBUG_PRINT("info",("%d elements in the queue",
evex_queue_num_elements(EVEX_EQ_NAME)));
evex_queue_delete_element(&EVEX_EQ_NAME, i);// 1 is top
evex_queue_delete_element(&EVEX_EQ_NAME, i);// 0 is top
DBUG_PRINT("info",("%d elements in the queue",
evex_queue_num_elements(EVEX_EQ_NAME)));
/*
......@@ -1598,7 +1600,7 @@ end:
VOID(pthread_mutex_unlock(&LOCK_event_arrays));
end_read_record(&read_record_info);
thd->version--; // Force close to free memory
thd->version--; /* Force close to free memory */
close_thread_tables(thd);
......
sql/event.h
View file @ d1056a7c
......@@ -103,6 +103,9 @@ public:
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;
......
sql/event_executor.cc
View file @ d1056a7c
......@@ -38,9 +38,9 @@ extern ulong thread_created;
extern const char *my_localhost;
extern pthread_attr_t connection_attrib;
pthread_mutex_t LOCK_event_arrays, // mutex for when working with the queue
LOCK_workers_count, // mutex for when inc/dec uint workers_count
LOCK_evex_running; // mutes for managing bool evex_is_running
pthread_mutex_t LOCK_event_arrays, // mutex for when working with the queue
LOCK_workers_count, // mutex for when inc/dec uint workers_count
LOCK_evex_running; // mutes for managing bool evex_is_running
bool evex_is_running= false;
......@@ -135,7 +135,7 @@ evex_check_system_tables()
bool not_used;
Open_tables_state backup;
// thd is 0x0 during boot of the server. Later it's !=0x0
/* thd is 0x0 during boot of the server. Later it's !=0x0 */
if (!thd)
return;
......@@ -151,7 +151,7 @@ evex_check_system_tables()
else
{
table_check_intact(tables.table, MYSQL_DB_FIELD_COUNT, mysql_db_table_fields,
&mysql_db_table_last_check,ER_CANNOT_LOAD_FROM_TABLE);
&mysql_db_table_last_check,ER_CANNOT_LOAD_FROM_TABLE);
close_thread_tables(thd);
}
......@@ -182,7 +182,7 @@ evex_check_system_tables()
SYNOPSIS
init_events()
NOTES
Inits the mutexes used by the scheduler. Done at server start.
*/
......@@ -194,7 +194,7 @@ init_events()
DBUG_ENTER("init_events");
DBUG_PRINT("info",("Starting events main thread"));
evex_check_system_tables();
evex_init_mutexes();
......@@ -206,7 +206,7 @@ init_events()
if (event_executor_running_global_var)
{
#ifndef DBUG_FAULTY_THR
//TODO Andrey: Change the error code returned!
/* TODO Andrey: Change the error code returned! */
if (pthread_create(&th, &connection_attrib, event_executor_main,(void*)NULL))
DBUG_RETURN(ER_SLAVE_THREAD);
#else
......@@ -223,7 +223,7 @@ init_events()
SYNOPSIS
shutdown_events()
NOTES
Destroys the mutexes.
*/
......@@ -232,10 +232,10 @@ void
shutdown_events()
{
DBUG_ENTER("shutdown_events");
if (evex_mutexes_initted)
{
evex_mutexes_initted= FALSE;
evex_mutexes_initted= FALSE;
VOID(pthread_mutex_lock(&LOCK_evex_running));
VOID(pthread_mutex_unlock(&LOCK_evex_running));
......@@ -253,11 +253,11 @@ shutdown_events()
SYNOPSIS
init_event_thread()
thd - the THD of the thread. Has to be allocated by the caller.
NOTES
1. The host of the thead is my_localhost
2. thd->net is initted with NULL - no communication.
Returns
0 - OK
-1 - Error
......@@ -304,7 +304,7 @@ init_event_thread(THD* thd)
/*
This function waits till the time next event in the queue should be
executed.
Returns
WAIT_STATUS_READY There is an event to be executed right now
WAIT_STATUS_EMPTY_QUEUE No events or the last event was dropped.
......@@ -339,14 +339,14 @@ executor_wait_till_next_event_exec(THD *thd)
if (et->dropped)
et->drop(thd);
delete et;
evex_queue_delete_element(&EVEX_EQ_NAME, 1);// 1 is top
evex_queue_delete_element(&EVEX_EQ_NAME, 0);// 0 is top, internally 1
VOID(pthread_mutex_unlock(&LOCK_event_arrays));
sql_print_information("Event found disabled, dropping.");
DBUG_RETURN(1);
}
DBUG_PRINT("evex main thread",("computing time to sleep till next exec"));
// set the internal clock of thd
/* set the internal clock of thd */
thd->end_time();
my_tz_UTC->gmt_sec_to_TIME(&time_now, thd->query_start());
t2sleep= evex_time_diff(&et->execute_at, &time_now);
......@@ -387,8 +387,8 @@ executor_wait_till_next_event_exec(THD *thd)
SYNOPSIS
event_executor_main()
arg - unused
arg unused
NOTES
1. The host of the thead is my_localhost
2. thd->net is initted with NULL - no communication.
......@@ -404,14 +404,13 @@ event_executor_main(void *arg)
TIME time_now;
DBUG_ENTER("event_executor_main");
DBUG_PRINT("event_executor_main", ("EVEX thread started"));
DBUG_PRINT("event_executor_main", ("EVEX thread started"));
// init memory root
/* init memory root */
init_alloc_root(&evex_mem_root, MEM_ROOT_BLOCK_SIZE, MEM_ROOT_PREALLOC);
// needs to call my_thread_init(), otherwise we get a coredump in DBUG_ stuff
/* needs to call my_thread_init(), otherwise we get a coredump in DBUG_ stuff*/
my_thread_init();
if (sizeof(my_time_t) != sizeof(time_t))
......@@ -422,14 +421,14 @@ event_executor_main(void *arg)
goto err_no_thd;
}
//TODO Andrey: Check for NULL
if (!(thd = new THD)) // note that contructor of THD uses DBUG_ !
/* note that contructor of THD uses DBUG_ ! */
if (!(thd = new THD))
{
sql_print_error("SCHEDULER: Cannot create THD for the main thread.");
goto err_no_thd;
}
thd->thread_stack = (char*)&thd; // remember where our stack is
thd->thread_stack = (char*)&thd; // remember where our stack is
pthread_detach_this_thread();
if (init_event_thread(thd))
......@@ -472,7 +471,7 @@ event_executor_main(void *arg)
{
TIME time_now;
event_timed *et;
cnt++;
DBUG_PRINT("info", ("EVEX External Loop %d thd->k", cnt));
......@@ -488,7 +487,7 @@ event_executor_main(void *arg)
my_sleep(1000000);// sleep 1s
continue;
}
restart_ticking:
switch (executor_wait_till_next_event_exec(thd)) {
case WAIT_STATUS_READY: // time to execute the event on top
......@@ -498,7 +497,7 @@ restart_ticking:
DBUG_PRINT("evex main thread",("no more events"));
continue;
break;
case WAIT_STATUS_NEW_TOP_EVENT: // new event on top in the queue
case WAIT_STATUS_NEW_TOP_EVENT: // new event on top in the queue
DBUG_PRINT("evex main thread",("restart ticking"));
goto restart_ticking;
case WAIT_STATUS_STOP_EXECUTOR:
......@@ -523,8 +522,7 @@ restart_ticking:
et= evex_queue_first_element(&EVEX_EQ_NAME, event_timed*);
DBUG_PRINT("evex main thread",("got event from the queue"));
if (et->execute_at.year > 1969 &&
my_time_compare(&time_now, &et->execute_at) == -1)
if (!et->execute_at_null && my_time_compare(&time_now,&et->execute_at) == -1)
{
DBUG_PRINT("evex main thread",("still not the time for execution"));
VOID(pthread_mutex_unlock(&LOCK_event_arrays));
......@@ -571,8 +569,11 @@ restart_ticking:
#else
event_executor_worker((void *) et);
#endif
if ((et->execute_at.year && !et->expression) ||
TIME_to_ulonglong_datetime(&et->execute_at) == 0)
/*
1. For one-time event : year is > 0 and expression is 0
2. For recurring, expression is != -=> check execute_at_null in this case
*/
if ((et->execute_at.year && !et->expression) || et->execute_at_null)
et->flags |= EVENT_EXEC_NO_MORE;
if ((et->flags & EVENT_EXEC_NO_MORE) || et->status == MYSQL_EVENT_DISABLED)
......@@ -582,10 +583,10 @@ restart_ticking:
}
DBUG_PRINT("evex main thread",("unlocking"));
VOID(pthread_mutex_unlock(&LOCK_event_arrays));
}// while
}/* while */
finish:
// First manifest that this thread does not work and then destroy
/* First manifest that this thread does not work and then destroy */
VOID(pthread_mutex_lock(&LOCK_evex_running));
evex_is_running= false;
evex_main_thread_id= 0;
......@@ -609,7 +610,7 @@ finish:
break;
}
VOID(pthread_mutex_unlock(&LOCK_workers_count));
my_sleep(1000000);// 1s
my_sleep(1000000);// 1s
}
/*
......@@ -625,9 +626,9 @@ finish:
delete et;
}
VOID(pthread_mutex_unlock(&LOCK_event_arrays));
// ... then we can thrash the whole queue at once
/* ... then we can thrash the whole queue at once */
evex_queue_destroy(&EVEX_EQ_NAME);
thd->proc_info = "Clearing";
DBUG_ASSERT(thd->net.buff != 0);
net_end(&thd->net); // destructor will not free it, because we are weird
......@@ -655,7 +656,7 @@ err_no_thd:
my_thread_end();
pthread_exit(0);
#endif
DBUG_RETURN(0);// Can't return anything here
DBUG_RETURN(0); // Can't return anything here
}
......@@ -665,7 +666,7 @@ err_no_thd:
SYNOPSIS
event_executor_worker()
arg - the event_timed object to be processed
arg The event_timed object to be processed
*/
pthread_handler_t
......@@ -682,12 +683,12 @@ event_executor_worker(void *event_void)
#ifndef DBUG_FAULTY_THR
my_thread_init();
if (!(thd = new THD)) // note that contructor of THD uses DBUG_ !
if (!(thd = new THD)) /* note that contructor of THD uses DBUG_ ! */
{
sql_print_error("SCHEDULER: Cannot create a THD structure in an worker.");
goto err_no_thd;
}
thd->thread_stack = (char*)&thd; // remember where our stack is
thd->thread_stack = (char*)&thd; // remember where our stack is
thd->mem_root= &worker_mem_root;
pthread_detach_this_thread();
......@@ -697,7 +698,7 @@ event_executor_worker(void *event_void)
thd->init_for_queries();
// make this thread visible it has no vio -> show processlist needs this flag
/* make this thread visible it has no vio -> show processlist needs this flag */
thd->system_thread= 1;
VOID(pthread_mutex_lock(&LOCK_thread_count));
......@@ -747,7 +748,7 @@ err:
DBUG_ASSERT(thd->net.buff != 0);
net_end(&thd->net); // destructor will not free it, because we are weird
THD_CHECK_SENTRY(thd);
VOID(pthread_mutex_lock(&LOCK_thread_count));
THD_CHECK_SENTRY(thd);
delete thd;
......@@ -778,9 +779,9 @@ err_no_thd:
thd - Thread context. Used for memory allocation in some cases.
RETURNS
0 - OK
!0 - Error
0 OK
!0 Error
NOTES
Reports the error to the console
*/
......@@ -793,7 +794,7 @@ evex_load_events_from_db(THD *thd)
MYSQL_LOCK *lock;
int ret= -1;
uint count= 0;
DBUG_ENTER("evex_load_events_from_db");
if ((ret= evex_open_event_table(thd, TL_READ, &table)))
......@@ -828,7 +829,7 @@ evex_load_events_from_db(THD *thd)
delete et;
continue;
}
DBUG_PRINT("evex_load_events_from_db",
("Event %s loaded from row. Time to compile", et->name.str));
......@@ -844,8 +845,8 @@ evex_load_events_from_db(THD *thd)
default:
break;
}
// let's find when to be executed
/* let's find when to be executed */
if (et->compute_next_execution_time())
{
sql_print_error("SCHEDULER: Error while computing execution time of %s.%s."
......@@ -866,8 +867,9 @@ evex_load_events_from_db(THD *thd)
end:
VOID(pthread_mutex_unlock(&LOCK_event_arrays));
end_read_record(&read_record_info);
thd->version--; // Force close to free memory
/* Force close to free memory */
thd->version--;
close_thread_tables(thd);
if (!ret)
......@@ -887,15 +889,15 @@ end:
event_executor_worker()
thd - Thread context (unused)
car - the new value
Returns
0 - OK (always)
0 OK (always)
*/
bool
sys_var_event_executor::update(THD *thd, set_var *var)
{
// here start the thread if not running.
/* here start the thread if not running. */
DBUG_ENTER("sys_var_event_executor::update");
VOID(pthread_mutex_lock(&LOCK_evex_running));
*value= var->save_result.ulong_value;
......@@ -927,12 +929,12 @@ static sql_print_xxx_func sql_print_xxx_handlers[3] =
Prints the stack of infos, warnings, errors from thd to
the console so it can be fetched by the logs-into-tables and
checked later.
Synopsis
evex_print_warnings
thd - thread used during the execution of the event
et - the event itself
Returns
0 - OK (always)
......@@ -940,19 +942,20 @@ static sql_print_xxx_func sql_print_xxx_handlers[3] =
bool
evex_print_warnings(THD *thd, event_timed *et)
{
{
MYSQL_ERROR *err;
DBUG_ENTER("evex_show_warnings");
char msg_buf[1024];
char prefix_buf[512];
String prefix(prefix_buf, sizeof(prefix_buf), system_charset_info);
prefix.length(0);
List_iterator_fast<MYSQL_ERROR> it(thd->warn_list);
while ((err= it++))
{
String err_msg(msg_buf, sizeof(msg_buf), system_charset_info);
err_msg.length(0);// set it to 0 or we start adding at the end
/* set it to 0 or we start adding at the end. That's the trick ;) */
err_msg.length(0);
if (!prefix.length())
{
prefix.append("SCHEDULER: [");
......@@ -966,7 +969,7 @@ evex_print_warnings(THD *thd, event_timed *et)
append_identifier(thd,&prefix, et->name.str, et->name.length);
prefix.append("] ", 2);
}
err_msg.append(prefix);
err_msg.append(err->msg, strlen(err->msg), system_charset_info);
err_msg.append("]");
......
sql/event_timed.cc
View file @ d1056a7c
......@@ -41,6 +41,7 @@ event_timed::init()
set_zero_time(&ends, MYSQL_TIMESTAMP_DATETIME);
set_zero_time(&execute_at, MYSQL_TIMESTAMP_DATETIME);
set_zero_time(&last_executed, MYSQL_TIMESTAMP_DATETIME);
starts_null= ends_null= execute_at_null= TRUE;
definer_user.str= definer_host.str= 0;
definer_user.length= definer_host.length= 0;
......@@ -115,7 +116,7 @@ event_timed::init_body(THD *thd)
body_begin, thd->lex->ptr));
body.length= thd->lex->ptr - body_begin;
// Trim nuls at the end
/* Trim nuls at the end */
while (body.length && body_begin[body.length-1] == '\0')
body.length--;
......@@ -157,12 +158,16 @@ event_timed::init_execute_at(THD *thd, Item *expr)
if (expr->fix_fields(thd, &expr))
DBUG_RETURN(EVEX_PARSE_ERROR);
/* Let's check whether time is in the past */
thd->variables.time_zone->gmt_sec_to_TIME(&time_tmp,
/* no starts and/or ends in case of execute_at */
DBUG_PRINT("info", ("starts_null && ends_null should be 1 is %d",
(starts_null && ends_null)));
DBUG_ASSERT(starts_null && ends_null);
/* let's check whether time is in the past */
thd->variables.time_zone->gmt_sec_to_TIME(&time_tmp,
(my_time_t) thd->query_start());
if ((not_used= expr->get_date(&ltime, TIME_NO_ZERO_DATE)))
DBUG_RETURN(ER_WRONG_VALUE);
......@@ -177,7 +182,7 @@ event_timed::init_execute_at(THD *thd, Item *expr)
*/
my_tz_UTC->gmt_sec_to_TIME(&ltime, TIME_to_timestamp(thd,&ltime, &not_used));
execute_at_null= FALSE;
execute_at= ltime;
DBUG_RETURN(0);
}
......@@ -246,14 +251,14 @@ event_timed::init_interval(THD *thd, Item *expr, interval_type new_interval)
case INTERVAL_DAY_MINUTE:
expression= (interval.day* 24 + interval.hour) * 60 + interval.minute;
break;
case INTERVAL_HOUR_SECOND: // day is anyway 0
case INTERVAL_HOUR_SECOND: /* day is anyway 0 */
case INTERVAL_DAY_SECOND:
/* DAY_SECOND having problems because of leap seconds? */
expression= ((interval.day* 24 + interval.hour) * 60 + interval.minute)*60
+ interval.second;
break;
case INTERVAL_MINUTE_MICROSECOND: // day and hour are 0
case INTERVAL_HOUR_MICROSECOND:// day is anyway 0
case INTERVAL_MINUTE_MICROSECOND: /* day and hour are 0 */
case INTERVAL_HOUR_MICROSECOND: /* day is anyway 0 */
case INTERVAL_DAY_MICROSECOND:
DBUG_RETURN(EVEX_MICROSECOND_UNSUP);
expression= ((((interval.day*24) + interval.hour)*60+interval.minute)*60 +
......@@ -332,6 +337,7 @@ event_timed::init_starts(THD *thd, Item *new_starts)
my_tz_UTC->gmt_sec_to_TIME(&ltime, TIME_to_timestamp(thd, &ltime, &not_used));
starts= ltime;
starts_null= FALSE;
DBUG_RETURN(0);
}
......@@ -361,8 +367,7 @@ event_timed::init_starts(THD *thd, Item *new_starts)
int
event_timed::init_ends(THD *thd, Item *new_ends)
{
TIME ltime;
my_time_t my_time_tmp;
TIME ltime, ltime_now;
my_bool not_used;
DBUG_ENTER("event_timed::init_ends");
......@@ -370,20 +375,34 @@ event_timed::init_ends(THD *thd, Item *new_ends)
if (new_ends->fix_fields(thd, &new_ends))
DBUG_RETURN(EVEX_PARSE_ERROR);
/* The field was already fixed in init_ends */
DBUG_PRINT("info", ("convert to TIME"));
if ((not_used= new_ends->get_date(&ltime, TIME_NO_ZERO_DATE)))
DBUG_RETURN(EVEX_BAD_PARAMS);
/*
This may result in a 1970-01-01 date if ltime is > 2037-xx-xx.
CONVERT_TZ has similar problem.
This may result in a 1970-01-01 date if ltime is > 2037-xx-xx ?
CONVERT_TZ has similar problem ?
*/
DBUG_PRINT("info", ("get the UTC time"));
my_tz_UTC->gmt_sec_to_TIME(&ltime, TIME_to_timestamp(thd, &ltime, &not_used));
if (starts.year && my_time_compare(&starts, &ltime) != -1)
/* Check whether ends is after starts */
DBUG_PRINT("info", ("ENDS after STARTS?"));
if (!starts_null && my_time_compare(&starts, &ltime) != -1)
DBUG_RETURN(EVEX_BAD_PARAMS);
/*
The parser forces starts to be provided but one day STARTS could be
set before NOW() and in this case the following check should be done.
Check whether ENDS is not in the past.
*/
DBUG_PRINT("info", ("ENDS after NOW?"));
my_tz_UTC->gmt_sec_to_TIME(&ltime_now, thd->query_start());
if (my_time_compare(&ltime_now, &ltime) == 1)
DBUG_RETURN(EVEX_BAD_PARAMS);
ends= ltime;
ends_null= FALSE;
DBUG_RETURN(0);
}
......@@ -403,7 +422,7 @@ event_timed::init_comment(THD *thd, LEX_STRING *set_comment)
DBUG_ENTER("event_timed::init_comment");
comment.str= strmake_root(thd->mem_root, set_comment->str,
comment.length= set_comment->length);
comment.length= set_comment->length);
DBUG_VOID_RETURN;
}
......@@ -514,32 +533,41 @@ event_timed::load_from_row(MEM_ROOT *mem_root, TABLE *table)
et->definer_user.str= strmake_root(mem_root, et->definer.str, len);
et->definer_user.length= len;
len= et->definer.length - len - 1; //1 is because of @
et->definer_host.str= strmake_root(mem_root, ptr + 1, len);//1: because of @
len= et->definer.length - len - 1; //1 is because of @
et->definer_host.str= strmake_root(mem_root, ptr + 1, len);/* 1:because of @*/
et->definer_host.length= len;
et->starts_null= table->field[EVEX_FIELD_STARTS]->is_null();
res1= table->field[EVEX_FIELD_STARTS]->get_date(&et->starts,TIME_NO_ZERO_DATE);
res1= table->field[EVEX_FIELD_STARTS]->
get_date(&et->starts, TIME_NO_ZERO_DATE);
res2= table->field[EVEX_FIELD_ENDS]->
get_date(&et->ends, TIME_NO_ZERO_DATE);
et->expression= table->field[EVEX_FIELD_INTERVAL_EXPR]->val_int();
et->ends_null= table->field[EVEX_FIELD_ENDS]->is_null();
res2= table->field[EVEX_FIELD_ENDS]->get_date(&et->ends, TIME_NO_ZERO_DATE);
if (!table->field[EVEX_FIELD_INTERVAL_EXPR]->is_null())
et->expression= table->field[EVEX_FIELD_INTERVAL_EXPR]->val_int();
else
et->expression= 0;
/*
If res1 and res2 are true then both fields are empty.
Hence if EVEX_FIELD_EXECUTE_AT is empty there is an error.
*/
if (res1 && res2 && !et->expression && table->field[EVEX_FIELD_EXECUTE_AT]->
get_date(&et->execute_at, TIME_NO_ZERO_DATE))
et->execute_at_null= table->field[EVEX_FIELD_EXECUTE_AT]->is_null();
DBUG_ASSERT(!(et->starts_null && et->ends_null && !et->expression &&
et->execute_at_null));
if (!et->expression &&
table->field[EVEX_FIELD_EXECUTE_AT]->get_date(&et->execute_at,
TIME_NO_ZERO_DATE))
goto error;
/*
In DB the values start from 1 but enum interval_type starts
from 0
*/
et->interval= (interval_type)
if (!table->field[EVEX_FIELD_TRANSIENT_INTERVAL]->is_null())
et->interval= (interval_type)
((ulonglong) table->field[EVEX_FIELD_TRANSIENT_INTERVAL]->val_int() - 1);
else
et->interval= (interval_type) 0;
et->modified= table->field[EVEX_FIELD_CREATED]->val_int();
et->created= table->field[EVEX_FIELD_MODIFIED]->val_int();
......@@ -568,20 +596,20 @@ event_timed::load_from_row(MEM_ROOT *mem_root, TABLE *table)
#endif
last_executed_changed= false;
// ToDo : Andrey . Find a way not to allocate ptr on event_mem_root
/* ToDo : Andrey . Find a way not to allocate ptr on event_mem_root */
if ((ptr= get_field(mem_root, table->field[EVEX_FIELD_STATUS])) == NullS)
goto error;
DBUG_PRINT("load_from_row", ("Event [%s] is [%s]", et->name.str, ptr));
et->status= (ptr[0]=='E'? MYSQL_EVENT_ENABLED:MYSQL_EVENT_DISABLED);
// ToDo : Andrey . Find a way not to allocate ptr on event_mem_root
/* ToDo : Andrey . Find a way not to allocate ptr on event_mem_root */
if ((ptr= get_field(mem_root,
table->field[EVEX_FIELD_ON_COMPLETION])) == NullS)
goto error;
et->on_completion= (ptr[0]=='D'? MYSQL_EVENT_ON_COMPLETION_DROP:
MYSQL_EVENT_ON_COMPLETION_PRESERVE);
MYSQL_EVENT_ON_COMPLETION_PRESERVE);
et->comment.str= get_field(mem_root, table->field[EVEX_FIELD_COMMENT]);
if (et->comment.str != NullS)
......@@ -698,14 +726,11 @@ event_timed::compute_next_execution_time()
/* Let's check whether it was executed */
if (last_executed.year)
{
DBUG_PRINT("compute_next_execution_time",
("One-time event %s was already executed", name.str));
if (on_completion == MYSQL_EVENT_ON_COMPLETION_DROP)
{
DBUG_PRINT("compute_next_execution_time",
("One-time event will be dropped."));
dropped= true;
}
DBUG_PRINT("info",("One-time event %s.%s of was already executed",
dbname.str, name.str, definer.str));
dropped= (on_completion == MYSQL_EVENT_ON_COMPLETION_DROP);
DBUG_PRINT("info",("One-time event will be dropped=%d.", dropped));
status= MYSQL_EVENT_DISABLED;
status_changed= true;
}
......@@ -731,11 +756,12 @@ event_timed::compute_next_execution_time()
last_executed.second);
#endif
/* If time_now is after ends don't execute anymore */
if (ends.year && (tmp= my_time_compare(&ends, &time_now)) == -1)
/* if time_now is after ends don't execute anymore */
if (!ends_null && (tmp= my_time_compare(&ends, &time_now)) == -1)
{
/* time_now is after ends. don't execute anymore */
set_zero_time(&execute_at, MYSQL_TIMESTAMP_DATETIME);
execute_at_null= TRUE;
if (on_completion == MYSQL_EVENT_ON_COMPLETION_DROP)
dropped= true;
status= MYSQL_EVENT_DISABLED;
......@@ -749,7 +775,7 @@ event_timed::compute_next_execution_time()
Let's check whether time_now is before starts.
If so schedule for starts.
*/
if (starts.year && (tmp= my_time_compare(&time_now, &starts)) < 1)
if (!starts_null && (tmp= my_time_compare(&time_now, &starts)) < 1)
{
if (tmp == 0 && my_time_compare(&starts, &last_executed) == 0)
{
......@@ -765,11 +791,12 @@ event_timed::compute_next_execution_time()
time_now before starts. Scheduling for starts
*/
execute_at= starts;
execute_at_null= FALSE;
goto ret;
}
}
if (starts.year && ends.year)
if (!starts_null && !ends_null)
{
/*
Both starts and m_ends are set and time_now is between them (incl.)
......@@ -778,7 +805,10 @@ event_timed::compute_next_execution_time()
If not set then schedule for now.
*/
if (!last_executed.year)
{
execute_at= time_now;
execute_at_null= FALSE;
}
else
{
TIME next_exec;
......@@ -791,15 +821,19 @@ event_timed::compute_next_execution_time()
{
/* Next execution after ends. No more executions */
set_zero_time(&execute_at, MYSQL_TIMESTAMP_DATETIME);
execute_at_null= TRUE;
if (on_completion == MYSQL_EVENT_ON_COMPLETION_DROP)
dropped= true;
}
else
{
execute_at= next_exec;
execute_at_null= FALSE;
}
}
goto ret;
}
else if (!starts.year && !ends.year)
else if (starts_null && ends_null)
{
/*
Both starts and m_ends are not set, so we schedule for the next
......@@ -815,11 +849,12 @@ event_timed::compute_next_execution_time()
/* last_executed not set. Schedule the event for now */
execute_at= time_now;
}
execute_at_null= FALSE;
}
else
{
/* Either starts or m_ends is set */
if (starts.year)
/* either starts or m_ends is set */
if (!starts_null)
{
/*
- starts is set.
......@@ -834,6 +869,7 @@ event_timed::compute_next_execution_time()
}
else
execute_at= starts;
execute_at_null= FALSE;
}
else
{
......@@ -856,11 +892,15 @@ event_timed::compute_next_execution_time()
if (my_time_compare(&ends, &next_exec) == -1)
{
set_zero_time(&execute_at, MYSQL_TIMESTAMP_DATETIME);
execute_at_null= TRUE;
if (on_completion == MYSQL_EVENT_ON_COMPLETION_DROP)
dropped= true;
}
else
{
execute_at= next_exec;
execute_at_null= FALSE;
}
}
}
goto ret;
......@@ -890,7 +930,7 @@ event_timed::mark_last_executed(THD *thd)
thd->end_time();
my_tz_UTC->gmt_sec_to_TIME(&time_now, (my_time_t) thd->query_start());
last_executed= time_now; // was execute_at
last_executed= time_now; /* was execute_at */
#ifdef ANDREY_0
last_executed= execute_at;
#endif
......@@ -1045,7 +1085,7 @@ event_timed::get_create_event(THD *thd, String *buf)
}
else
{
char dtime_buff[20*2+32];// +32 to make my_snprintf_{8bit|ucs2} happy
char dtime_buff[20*2+32];/* +32 to make my_snprintf_{8bit|ucs2} happy */
buf->append(STRING_WITH_LEN("AT '"));
/*
Pass the buffer and the second param tells fills the buffer and
......@@ -1324,10 +1364,7 @@ event_timed::compile(THD *thd, MEM_ROOT *mem_root)
sphead= lex.et->sphead;
sphead->m_db= dbname;
/*
Ccopy also chistics since they will vanish otherwise we get 0x0 pointer
TODO: Handle sql_mode!!
*/
sphead->set_definer(definer.str, definer.length);
sphead->set_info(0, 0, &lex.sp_chistics, sql_mode);
sphead->optimize();
......@@ -1389,7 +1426,7 @@ extern pthread_attr_t connection_attrib;
/*
Checks whether is possible and forks a thread. Passes self as argument.
Returns
EVENT_EXEC_STARTED - OK
EVENT_EXEC_ALREADY_EXEC - Thread not forked, already working
......@@ -1460,7 +1497,6 @@ event_timed::spawn_thread_finish(THD *thd)
Returns
0 - ok
1 - not locked by this thread
*/
......@@ -1486,5 +1522,5 @@ event_timed::spawn_unlock(THD *thd)
}
}
VOID(pthread_mutex_unlock(&this->LOCK_running));
return ret;
return ret;
}
sql/sql_show.cc
View file @ d1056a7c
......@@ -3957,7 +3957,7 @@ fill_events_copy_to_schema_table(THD *thd, TABLE *sch_table, TABLE *event_table)
sch_table->field[3]->store(et.definer.str, et.definer.length, scs);
sch_table->field[4]->store(et.body.str, et.body.length, scs);
// [9] is SQL_MODE
/* [9] is SQL_MODE */
{
byte *sql_mode_str;
ulong sql_mode_len=0;
......@@ -3972,9 +3972,9 @@ fill_events_copy_to_schema_table(THD *thd, TABLE *sch_table, TABLE *event_table)
String show_str;
//type
sch_table->field[5]->store(STRING_WITH_LEN("RECURRING"), scs);
//execute_at
/* execute_at */
sch_table->field[6]->set_null();
//interval_value
/* interval_value */
//interval_type
if (event_reconstruct_interval_expression(&show_str, et.interval,
et.expression))
......@@ -3986,26 +3986,24 @@ fill_events_copy_to_schema_table(THD *thd, TABLE *sch_table, TABLE *event_table)
LEX_STRING *ival= &interval_type_to_name[et.interval];
sch_table->field[8]->set_notnull();
sch_table->field[8]->store(ival->str, ival->length, scs);
//starts & ends
//starts & ends
sch_table->field[10]->set_notnull();
sch_table->field[10]->store_time(&et.starts, MYSQL_TIMESTAMP_DATETIME);
sch_table->field[11]->set_notnull();
sch_table->field[11]->store_time(&et.ends, MYSQL_TIMESTAMP_DATETIME);
if (!et.ends_null)
{
sch_table->field[11]->set_notnull();
sch_table->field[11]->store_time(&et.ends, MYSQL_TIMESTAMP_DATETIME);
}
}
else
{
//type
sch_table->field[5]->store(STRING_WITH_LEN("ONE TIME"), scs);
//execute_at
sch_table->field[6]->set_notnull();
sch_table->field[6]->store_time(&et.execute_at, MYSQL_TIMESTAMP_DATETIME);
//interval
sch_table->field[7]->set_null();
//interval_type
sch_table->field[8]->set_null();
//starts & ends
sch_table->field[10]->set_null();
sch_table->field[11]->set_null();
}
//status
......
sql/sql_yacc.yy
View file @ d1056a7c
......@@ -1476,6 +1476,9 @@ opt_ev_status: /* empty */ { $$= 0; }
;
ev_starts: /* empty */
{
Lex->et->init_starts(YYTHD, new Item_func_now_local());
}
| STARTS_SYM expr
{
LEX *lex= Lex;
......
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