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After merge fixes

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This commit is contained in:
monty@mysql.com
2004-11-12 17:44:17 +02:00
parent 9252656d49
commit e9c3887b58
10 changed files with 112 additions and 81 deletions
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23
sql-common/my_time.c
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@@ -664,6 +664,10 @@ my_system_gmt_sec(const MYSQL_TIME *t, long *my_timezone, bool *in_dst_time_gap)
I couldn't come up with a better way to get a repeatable result :(
We can't use mktime() as it's buggy on many platforms and not thread safe.
Note: this code assumes that our time_t estimation is not too far away
from real value (we assume that localtime_r(tmp) will return something
within 24 hrs from t) which is probably true for all current time zones.
*/
tmp=(time_t) (((calc_daynr((uint) t->year,(uint) t->month,(uint) t->day) -
(long) days_at_timestart)*86400L + (long) t->hour*3600L +
@@ -676,7 +680,8 @@ my_system_gmt_sec(const MYSQL_TIME *t, long *my_timezone, bool *in_dst_time_gap)
for (loop=0;
loop < 2 &&
(t->hour != (uint) l_time->tm_hour ||
t->minute != (uint) l_time->tm_min);
t->minute != (uint) l_time->tm_min ||
t->second != (uint) l_time->tm_sec);
loop++)
{ /* One check should be enough ? */
/* Get difference in days */
@@ -686,15 +691,22 @@ my_system_gmt_sec(const MYSQL_TIME *t, long *my_timezone, bool *in_dst_time_gap)
else if (days > 1)
days= -1;
diff=(3600L*(long) (days*24+((int) t->hour - (int) l_time->tm_hour)) +
(long) (60*((int) t->minute - (int) l_time->tm_min)));
(long) (60*((int) t->minute - (int) l_time->tm_min)) +
(long) ((int) t->second - (int) l_time->tm_sec));
current_timezone+= diff+3600; /* Compensate for -3600 above */
tmp+= (time_t) diff;
localtime_r(&tmp,&tm_tmp);
l_time=&tm_tmp;
}
/*
Fix that if we are in the not existing daylight saving time hour
we move the start of the next real hour
Fix that if we are in the non existing daylight saving time hour
we move the start of the next real hour.
This code doesn't handle such exotical thing as time-gaps whose length
is more than one hour or non-integer (latter can theoretically happen
if one of seconds will be removed due leap correction, or because of
general time correction like it happened for Africa/Monrovia time zone
in year 1972).
*/
if (loop == 2 && t->hour != (uint) l_time->tm_hour)
{
@@ -704,7 +716,8 @@ my_system_gmt_sec(const MYSQL_TIME *t, long *my_timezone, bool *in_dst_time_gap)
else if (days > 1)
days= -1;
diff=(3600L*(long) (days*24+((int) t->hour - (int) l_time->tm_hour))+
(long) (60*((int) t->minute - (int) l_time->tm_min)));
(long) (60*((int) t->minute - (int) l_time->tm_min)) +
(long) ((int) t->second - (int) l_time->tm_sec));
if (diff == 3600)
tmp+=3600 - t->minute*60 - t->second; /* Move to next hour */
else if (diff == -3600)