mariadb/include/mysql_time.h
Monty b8ffd99cee Extends 64 bit windows to support timestamps up to year 2106.
MDEV-32188 make TIMESTAMP use whole 32-bit unsigned range

This is done by changing my_time_t from long to unsigned long.
The effect of this is that on windows compling old clients may
get warnings of if they compare my_time_t with as signed variable.

Other things
- Removed my_time_t from include/*.pp files as it is different on windows
  and linux.
- Changed do_abi_check.cmake to first print abi_check and then the
  conflicting file (this makes it easier to find the cause of the error).
2024-05-27 12:39:02 +02:00

79 lines
2.7 KiB
C

/* Copyright (c) 2004, 2006 MySQL AB
Use is subject to license terms
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; version 2 of the License.
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
#ifndef _mysql_time_h_
#define _mysql_time_h_
/*
Portable time_t replacement.
For 32 bit systems holds seconds for 1970 - 2038-01-19
For 64 bit systems holds seconds for 1970 - 2106-02-07
Using the system built in time_t is not an option as
we rely on the above requirements in the time functions
*/
#ifndef MYSQL_ABI_CHECK
/*
long is 64bit on all 64bit systems, except Windows where it is 32 bit.
long is 32bit on all 32bit systems.
The following code ensures that my_time_t is 64 bit on all 64 bit
systems.
*/
#ifdef _WIN64
typedef long long my_time_t;
#else
typedef long my_time_t;
#endif
#endif /* MYSQL_ABI_CHECK */
/*
Time declarations shared between the server and client API:
you should not add anything to this header unless it's used
(and hence should be visible) in mysql.h.
If you're looking for a place to add new time-related declaration,
it's most likely my_time.h. See also "C API Handling of Date
and Time Values" chapter in documentation.
*/
enum enum_mysql_timestamp_type
{
MYSQL_TIMESTAMP_NONE= -2, MYSQL_TIMESTAMP_ERROR= -1,
MYSQL_TIMESTAMP_DATE= 0, MYSQL_TIMESTAMP_DATETIME= 1, MYSQL_TIMESTAMP_TIME= 2
};
/*
Structure which is used to represent datetime values inside MySQL.
We assume that values in this structure are normalized, i.e. year <= 9999,
month <= 12, day <= 31, hour <= 23, hour <= 59, hour <= 59. Many functions
in server such as my_system_gmt_sec() or make_time() family of functions
rely on this (actually now usage of make_*() family relies on a bit weaker
restriction). Also functions that produce MYSQL_TIME as result ensure this.
There is one exception to this rule though if this structure holds time
value (time_type == MYSQL_TIMESTAMP_TIME) days and hour member can hold
bigger values.
*/
typedef struct st_mysql_time
{
unsigned int year, month, day, hour, minute, second;
unsigned long second_part;
my_bool neg;
enum enum_mysql_timestamp_type time_type;
} MYSQL_TIME;
#endif /* _mysql_time_h_ */