my_time.h
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上传日期:2022-05-23
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- /* Copyright (C) 2004 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
- 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; either version 2 of the License, or
- (at your option) any later version.
- 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
- /*
- This is a private header of sql-common library, containing
- declarations for my_time.c
- */
- #ifndef _my_time_h_
- #define _my_time_h_
- #include "my_global.h"
- #include "mysql_time.h"
- C_MODE_START
- extern ulonglong log_10_int[20];
- extern uchar days_in_month[];
- /*
- Portable time_t replacement.
- Should be signed and hold seconds for 1902-2038 range.
- */
- typedef long my_time_t;
- #define MY_TIME_T_MAX LONG_MAX
- #define MY_TIME_T_MIN LONG_MIN
- #define YY_PART_YEAR 70
- /* Flags to str_to_datetime */
- #define TIME_FUZZY_DATE 1
- #define TIME_DATETIME_ONLY 2
- enum enum_mysql_timestamp_type
- str_to_datetime(const char *str, uint length, MYSQL_TIME *l_time,
- uint flags, int *was_cut);
- bool str_to_time(const char *str,uint length, MYSQL_TIME *l_time,
- int *was_cut);
- long calc_daynr(uint year,uint month,uint day);
- void init_time(void);
- my_time_t
- my_system_gmt_sec(const MYSQL_TIME *t, long *my_timezone, bool *in_dst_time_gap);
- void set_zero_time(MYSQL_TIME *tm, enum enum_mysql_timestamp_type time_type);
- /*
- Required buffer length for my_time_to_str, my_date_to_str,
- my_datetime_to_str and TIME_to_string functions. Note, that the
- caller is still responsible to check that given TIME structure
- has values in valid ranges, otherwise size of the buffer could
- be not enough. We also rely on the fact that even wrong values
- sent using binary protocol fit in this buffer.
- */
- #define MAX_DATE_STRING_REP_LENGTH 30
- int my_time_to_str(const MYSQL_TIME *l_time, char *to);
- int my_date_to_str(const MYSQL_TIME *l_time, char *to);
- int my_datetime_to_str(const MYSQL_TIME *l_time, char *to);
- int my_TIME_to_str(const MYSQL_TIME *l_time, char *to);
- C_MODE_END
- #endif /* _my_time_h_ */