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/* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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* Copyright (C) 2008 MySQL
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#ifndef DRIZZLED_MY_TIME_H
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#define DRIZZLED_MY_TIME_H
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#if TIME_WITH_SYS_TIME
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# include <sys/time.h>
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# include <sys/time.h>
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extern uint64_t log_10_int[20];
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extern unsigned char days_in_month[];
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/* Time handling defaults */
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#define TIMESTAMP_MAX_YEAR 2038
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#define TIMESTAMP_MIN_YEAR (1900 + YY_PART_YEAR - 1)
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#define TIMESTAMP_MAX_VALUE INT32_MAX
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#define TIMESTAMP_MIN_VALUE 1
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/* two-digit years < this are 20..; >= this are 19.. */
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#define YY_PART_YEAR 70
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/* Flags to str_to_datetime */
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#define TIME_FUZZY_DATE 1
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#define TIME_DATETIME_ONLY 2
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/* Must be same as MODE_NO_ZERO_IN_DATE */
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#define TIME_NO_ZERO_IN_DATE (65536L*2*2*2*2*2*2*2)
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/* Must be same as MODE_NO_ZERO_DATE */
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#define TIME_NO_ZERO_DATE (TIME_NO_ZERO_IN_DATE*2)
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#define TIME_INVALID_DATES (TIME_NO_ZERO_DATE*2)
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#define DRIZZLE_TIME_WARN_TRUNCATED 1
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#define DRIZZLE_TIME_WARN_OUT_OF_RANGE 2
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/* Limits for the TIME data type */
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#define TIME_MAX_HOUR 838
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#define TIME_MAX_MINUTE 59
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#define TIME_MAX_SECOND 59
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#define TIME_MAX_VALUE (TIME_MAX_HOUR*10000 + TIME_MAX_MINUTE*100 + \
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#define TIME_MAX_VALUE_SECONDS (TIME_MAX_HOUR * 3600L + \
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TIME_MAX_MINUTE * 60L + TIME_MAX_SECOND)
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enum enum_drizzle_timestamp_type
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DRIZZLE_TIMESTAMP_NONE= -2, DRIZZLE_TIMESTAMP_ERROR= -1,
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DRIZZLE_TIMESTAMP_DATE= 0, DRIZZLE_TIMESTAMP_DATETIME= 1, DRIZZLE_TIMESTAMP_TIME= 2
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Structure which is used to represent datetime values inside Drizzle.
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We assume that values in this structure are normalized, i.e. year <= 9999,
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month <= 12, day <= 31, hour <= 23, hour <= 59, hour <= 59. Many functions
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in server such as my_system_gmt_sec() or make_time() family of functions
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rely on this (actually now usage of make_*() family relies on a bit weaker
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restriction). Also functions that produce DRIZZLE_TIME as result ensure this.
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There is one exception to this rule though if this structure holds time
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value (time_type == DRIZZLE_TIMESTAMP_TIME) days and hour member can hold
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typedef struct st_drizzle_time
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unsigned int year, month, day, hour, minute, second;
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unsigned long second_part;
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enum enum_drizzle_timestamp_type time_type;
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bool check_date(const DRIZZLE_TIME *ltime, bool not_zero_date,
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uint32_t flags, int *was_cut);
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enum enum_drizzle_timestamp_type
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str_to_datetime(const char *str, uint32_t length, DRIZZLE_TIME *l_time,
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uint32_t flags, int *was_cut);
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int64_t number_to_datetime(int64_t nr, DRIZZLE_TIME *time_res,
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uint32_t flags, int *was_cut);
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uint64_t TIME_to_uint64_t_datetime(const DRIZZLE_TIME *);
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uint64_t TIME_to_uint64_t(const DRIZZLE_TIME *);
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bool str_to_time(const char *str,uint32_t length, DRIZZLE_TIME *l_time,
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long calc_daynr(uint32_t year,uint32_t month,uint32_t day);
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uint32_t calc_days_in_year(uint32_t year);
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uint32_t year_2000_handling(uint32_t year);
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void init_time(void);
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Function to check sanity of a TIMESTAMP value
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Check if a given DRIZZLE_TIME value fits in TIMESTAMP range.
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This function doesn't make precise check, but rather a rough
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false The value seems sane
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true The DRIZZLE_TIME value is definitely out of range
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static inline bool validate_timestamp_range(const DRIZZLE_TIME *t)
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if ((t->year > TIMESTAMP_MAX_YEAR || t->year < TIMESTAMP_MIN_YEAR) ||
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(t->year == TIMESTAMP_MAX_YEAR && (t->month > 1 || t->day > 19)) ||
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(t->year == TIMESTAMP_MIN_YEAR && (t->month < 12 || t->day < 31)))
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my_system_gmt_sec(const DRIZZLE_TIME *t, long *my_timezone,
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bool *in_dst_time_gap);
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void set_zero_time(DRIZZLE_TIME *tm, enum enum_drizzle_timestamp_type time_type);
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Required buffer length for my_time_to_str, my_date_to_str,
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my_datetime_to_str and TIME_to_string functions. Note, that the
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caller is still responsible to check that given TIME structure
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has values in valid ranges, otherwise size of the buffer could
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be not enough. We also rely on the fact that even wrong values
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sent using binary protocol fit in this buffer.
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#define MAX_DATE_STRING_REP_LENGTH 30
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int my_date_to_str(const DRIZZLE_TIME *l_time, char *to);
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int my_datetime_to_str(const DRIZZLE_TIME *l_time, char *to);
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int my_TIME_to_str(const DRIZZLE_TIME *l_time, char *to);
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Available interval types used in any statement.
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'interval_type' must be sorted so that simple intervals comes first,
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ie year, quarter, month, week, day, hour, etc. The order based on
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interval size is also important and the intervals should be kept in a
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large to smaller order. (get_interval_value() depends on this)
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Note: If you change the order of elements in this enum you should fix
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order of elements in 'interval_type_to_name' and 'interval_names'
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See also interval_type_to_name, get_interval_value, interval_names
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INTERVAL_YEAR, INTERVAL_QUARTER, INTERVAL_MONTH, INTERVAL_WEEK, INTERVAL_DAY,
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INTERVAL_HOUR, INTERVAL_MINUTE, INTERVAL_SECOND, INTERVAL_MICROSECOND,
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INTERVAL_YEAR_MONTH, INTERVAL_DAY_HOUR, INTERVAL_DAY_MINUTE,
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INTERVAL_DAY_SECOND, INTERVAL_HOUR_MINUTE, INTERVAL_HOUR_SECOND,
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INTERVAL_MINUTE_SECOND, INTERVAL_DAY_MICROSECOND, INTERVAL_HOUR_MICROSECOND,
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INTERVAL_MINUTE_MICROSECOND, INTERVAL_SECOND_MICROSECOND, INTERVAL_LAST
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extern uint64_t my_getsystime(void);
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extern uint64_t my_micro_time(void);
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extern uint64_t my_micro_time_and_time(time_t *time_arg);
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} /* namespace drizzled */
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#endif /* DRIZZLED_MY_TIME_H */
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drizzled/my_time.h
