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remove assert

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sql/event_data_objects.cc:
  add a comments that using gmt_sec_to_TIME() won't
  be safe after 2038. per andrey's request
sql/event_queue.cc:
  remove assert, which aborts server in the case when it shouldn't
This commit is contained in:
unknown 2006-12-05 19:04:46 +03:00
parent 0c55e29acb
commit 62273f8e66
2 changed files with 16 additions and 10 deletions
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21
sql/event_data_objects.cc
View File

@ -395,7 +395,14 @@ Event_parse_data::init_starts(THD *thd)
if ((not_used= item_starts->get_date(&ltime, TIME_NO_ZERO_DATE)))
goto wrong_value;
/* Let's check whether time is in the past */
/*
Let's check whether time is in the past.
Note: This call is not post year 2038 safe. That's because
thd->query_start() is of time_t, while gmt_sec_to_TIME()
wants my_time_t. In the case time_t is larger than my_time_t
an overflow might happen and events subsystem will not work as
expected.
*/
thd->variables.time_zone->gmt_sec_to_TIME(&time_tmp,
(my_time_t) thd->query_start());
@ -407,12 +414,12 @@ Event_parse_data::init_starts(THD *thd)
goto wrong_value;
/*
This may result in a 1970-01-01 date if ltime is > 2037-xx-xx.
CONVERT_TZ has similar problem.
Again, after 2038 this code won't work. As
mysql_priv.h currently lists
#define TIMESTAMP_MAX_YEAR 2038 (see TIME_to_timestamp())
*/
my_tz_UTC->gmt_sec_to_TIME(&ltime,t=TIME_to_timestamp(thd, &ltime, &not_used));
my_tz_UTC->gmt_sec_to_TIME(&ltime,t=TIME_to_timestamp(thd, &ltime,
&not_used));
if (!t)
goto wrong_value;
@ -465,13 +472,13 @@ Event_parse_data::init_ends(THD *thd)
goto error_bad_params;
/*
This may result in a 1970-01-01 date if ltime is > 2037-xx-xx.
CONVERT_TZ has similar problem.
Again, after 2038 this code won't work. As
mysql_priv.h currently lists
#define TIMESTAMP_MAX_YEAR 2038 (see TIME_to_timestamp())
*/
DBUG_PRINT("info", ("get the UTC time"));
my_tz_UTC->gmt_sec_to_TIME(&ltime,t=TIME_to_timestamp(thd, &ltime, &not_used));
my_tz_UTC->gmt_sec_to_TIME(&ltime,t=TIME_to_timestamp(thd, &ltime,
&not_used));
if (!t)
goto error_bad_params;

1
sql/event_queue.cc
View File

@ -160,7 +160,6 @@ Event_queue::init_queue(THD *thd, Event_db_repository *db_repo)
{
sql_print_error("SCHEDULER: sizeof(my_time_t) != sizeof(time_t) ."
"The scheduler may not work correctly. Stopping");
DBUG_ASSERT(0);
goto err;
}