MySQL 8.4.3
Source Code Documentation
my_time.h
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1/* Copyright (c) 2004, 2024, Oracle and/or its affiliates.
2
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4 it under the terms of the GNU General Public License, version 2.0,
5 as published by the Free Software Foundation.
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17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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19
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
23
24#ifndef MY_TIME_INCLUDED
25#define MY_TIME_INCLUDED
26
27/**
28 @ingroup MY_TIME
29 @{
30
31 @file include/my_time.h
32
33 Interface for low level time utilities.
34*/
35
36#include "my_config.h"
37
38#include <assert.h> // assert
39#include <algorithm>
40#include <cstddef> // std::size_t
41#include <cstdint> // std::int32_t
42#include <cstring> // strncpy
43#include <limits> // std::numeric_limits
44
45#ifdef HAVE_SYS_TIME_H
46#include <sys/time.h> // struct timeval
47#endif /* HAVE_SYS_TIME_H */
48#ifdef _WIN32
49#include <winsock2.h> // struct timeval
50#endif /* _WIN32 */
51
52#include "field_types.h"
53#include "my_time_t.h"
54#include "mysql_time.h" // struct MYSQL_TIME, shared with client code
55
56extern const unsigned long long int log_10_int[20];
57extern const unsigned char days_in_month[];
58extern const char my_zero_datetime6[]; /* "0000-00-00 00:00:00.000000" */
59
60constexpr const bool HAVE_64_BITS_TIME_T = sizeof(time_t) == sizeof(my_time_t);
61
62/** Time handling defaults */
63constexpr const int MYTIME_MAX_YEAR = HAVE_64_BITS_TIME_T ? 9999 : 2038;
64constexpr const int TIMESTAMP_MAX_YEAR = 2038;
65
66/** Two-digit years < this are 20XX; >= this are 19XX */
67constexpr const int YY_PART_YEAR = 70;
68constexpr const int MYTIME_MIN_YEAR = (1900 + YY_PART_YEAR - 1);
69
70/** max seconds from epoch of host's time_t stored in my_time_t
71 Windows allows up to 3001-01-18 23:59:59 UTC for localtime_r, so
72 that is our effective limit, although Unixen allow higher time points.
73 Hence the magic constant 32536771199.
74 */
75constexpr const my_time_t MYTIME_MAX_VALUE =
76 HAVE_64_BITS_TIME_T ? 32536771199
77 : std::numeric_limits<std::int32_t>::max();
78
79/**
80 Zero represents the first time value we allow, i.e. UNIX epoch.
81 We do not allow times before UNIX epoch, except for inside computations,
82 hence we use a signed integer as the base type, cf. prepare_tz_info.
83*/
84constexpr const int MYTIME_MIN_VALUE = 0;
85
86/** max seconds from epoch that can be stored in a column of type TIMESTAMP.
87 This also impacts the max value that can be given to SET TIMESTAMP
88*/
89constexpr const std::int64_t TYPE_TIMESTAMP_MAX_VALUE =
90 std::numeric_limits<std::int32_t>::max();
91constexpr const std::int64_t TYPE_TIMESTAMP_MIN_VALUE = 1;
92
93/** Flags to str_to_datetime and number_to_datetime */
94using my_time_flags_t = unsigned int;
95
96/** Allow zero day and zero month */
97constexpr const my_time_flags_t TIME_FUZZY_DATE = 1;
98
99/** Only allow full datetimes. */
101
104
105/** Don't allow zero day or zero month */
107
108/** Don't allow 0000-00-00 date */
110
111/** Allow 2000-02-31 */
113
114/** Allow only HH:MM:SS or MM:SS time formats */
115constexpr const my_time_flags_t TIME_STRICT_COLON = 128;
116
117/** Conversion warnings */
118constexpr const int MYSQL_TIME_WARN_TRUNCATED = 1;
119constexpr const int MYSQL_TIME_WARN_OUT_OF_RANGE = 2;
120constexpr const int MYSQL_TIME_WARN_INVALID_TIMESTAMP = 4;
121constexpr const int MYSQL_TIME_WARN_ZERO_DATE = 8;
122constexpr const int MYSQL_TIME_NOTE_TRUNCATED = 16;
123constexpr const int MYSQL_TIME_WARN_ZERO_IN_DATE = 32;
124constexpr const int MYSQL_TIME_WARN_DATETIME_OVERFLOW = 64;
125
126/** Useful constants */
127constexpr const int64_t SECONDS_IN_24H = 86400LL;
128
129/** Limits for the TIME data type */
130constexpr const int TIME_MAX_HOUR = 838;
131constexpr const int TIME_MAX_MINUTE = 59;
132constexpr const int TIME_MAX_SECOND = 59;
133
134/**
135 Note that this MUST be a signed type, as we use the unary - operator on it.
136 */
137constexpr const int TIME_MAX_VALUE =
139
140constexpr const int TIME_MAX_VALUE_SECONDS =
142
143constexpr const int DATETIME_MAX_DECIMALS = 6;
144
145constexpr const int SECS_PER_MIN = 60;
146constexpr const int MINS_PER_HOUR = 60;
147constexpr const int HOURS_PER_DAY = 24;
148constexpr const int DAYS_PER_WEEK = 7;
149constexpr const int DAYS_PER_NYEAR = 365;
150constexpr const int DAYS_PER_LYEAR = 366;
151constexpr const int SECS_PER_HOUR = (SECS_PER_MIN * MINS_PER_HOUR);
152constexpr const int SECS_PER_DAY = (SECS_PER_HOUR * HOURS_PER_DAY);
153constexpr const int MONS_PER_YEAR = 12;
154
155constexpr const int MAX_TIME_ZONE_HOURS = 14;
156
157/** Flags for calc_week() function. */
158constexpr const unsigned int WEEK_MONDAY_FIRST = 1;
159constexpr const unsigned int WEEK_YEAR = 2;
160constexpr const unsigned int WEEK_FIRST_WEEKDAY = 4;
161
162/** Daynumber from year 0 to 9999-12-31 */
163constexpr const int64_t MAX_DAY_NUMBER = 3652424;
164
165/**
166 Structure to return status from
167 str_to_datetime(), str_to_time(), number_to_datetime(), number_to_time()
168 @note Implicit default constructor initializes all members to 0.
169*/
171 int warnings{0};
172 unsigned int fractional_digits{0};
173 unsigned int nanoseconds{0};
174 struct DEPRECATION { // We only report first offense
176 DP_NONE, // no deprecated delimiter seen yet
177 DP_WRONG_KIND, // seen a delimiter in correct position, but wrong one
178 DP_WRONG_SPACE, // seen a space delimiter which isn't 0x20 ' '.
179 DP_SUPERFLUOUS // seen a superfluous delimiter
180 } m_kind{DP_NONE};
182 bool m_colon; // for DP_WRONG_KIND: true if we expect ':', else '-'
183 int m_position; // 0-based in m_arg
184 char m_arg[40]; // the string argument we found a deprecation in
186 ///< Register wrong delimiter if it's the first we see for this value
187 ///< @param kind what kind of deprecation did we see
188 ///< @param arg the string we try to interpret as a datetime value
189 ///< @param end points to the character after arg, usually a '\0'
190 ///< @param delim what delimiter was used
191 ///< @param colon used if kind==DP_WRONG_KIND. true: expect ':' else expect'-'
192 void set_deprecation(DEPRECATION::DEPR_KIND kind, const char *arg,
193 const char *end, const char *delim, bool colon = false) {
194 if (m_deprecation.m_kind == DEPRECATION::DP_NONE) {
195 m_deprecation.m_kind = kind;
197 m_deprecation.m_colon = colon;
198 const size_t bufsize = sizeof(m_deprecation.m_arg) - 1; // -1: for '\0'
199 const size_t argsize = end - arg;
200 const size_t size = std::min(bufsize, argsize);
201 // The input string is not necessarily zero-terminated,
202 // so do not use snprintf().
203 std::strncpy(m_deprecation.m_arg, arg, size);
204 m_deprecation.m_arg[size] = '\0';
205 m_deprecation.m_position = delim - arg;
206 }
207 }
208 MYSQL_TIME_STATUS() = default;
210 /// Assignment: don't clobber an existing deprecation, first one wins
212 warnings = b.warnings;
215 // keep first deprecation
216 if (m_deprecation.m_kind == DEPRECATION::DP_NONE) {
218 }
219 return *this;
220 }
222};
223
224/**
225 Struct representing a duration. Content is similar to MYSQL_TIME
226 but member variables are unsigned.
227 */
228struct Interval {
229 unsigned long int year;
230 unsigned long int month;
231 unsigned long int day;
232 unsigned long int hour;
233 unsigned long long int minute;
234 unsigned long long int second;
235 unsigned long long int second_part;
236 bool neg;
237};
238
239void my_init_time();
240
241long calc_daynr(unsigned int year, unsigned int month, unsigned int day);
242unsigned int calc_days_in_year(unsigned int year);
243unsigned int year_2000_handling(unsigned int year);
244
245bool time_zone_displacement_to_seconds(const char *str, size_t length,
246 int *result);
247
248void get_date_from_daynr(int64_t daynr, unsigned int *year, unsigned int *month,
249 unsigned int *day);
250int calc_weekday(long daynr, bool sunday_first_day_of_week);
251bool valid_period(long long int period);
252uint64_t convert_period_to_month(uint64_t period);
253uint64_t convert_month_to_period(uint64_t month);
254
255/**
256 Check for valid my_time_t value. Note: timestamp here pertains to seconds
257 since epoch, not the legacy MySQL type TIMESTAMP, which is limited to
258 32 bits even on 64 bit platforms.
259*/
260inline bool is_time_t_valid_for_timestamp(time_t x) {
261 return (static_cast<int64_t>(x) <= static_cast<int64_t>(MYTIME_MAX_VALUE) &&
262 x >= MYTIME_MIN_VALUE);
263}
264
265unsigned int calc_week(const MYSQL_TIME &l_time, unsigned int week_behaviour,
266 unsigned int *year);
267
268bool check_date(const MYSQL_TIME &ltime, bool not_zero_date,
269 my_time_flags_t flags, int *was_cut);
270bool str_to_datetime(const char *str, std::size_t length, MYSQL_TIME *l_time,
272long long int number_to_datetime(long long int nr, MYSQL_TIME *time_res,
273 my_time_flags_t flags, int *was_cut);
274bool number_to_time(long long int nr, MYSQL_TIME *ltime, int *warnings);
275unsigned long long int TIME_to_ulonglong_datetime(const MYSQL_TIME &my_time);
276unsigned long long int TIME_to_ulonglong_date(const MYSQL_TIME &my_time);
277unsigned long long int TIME_to_ulonglong_time(const MYSQL_TIME &my_time);
278unsigned long long int TIME_to_ulonglong(const MYSQL_TIME &my_time);
279
280unsigned long long int TIME_to_ulonglong_datetime_round(
281 const MYSQL_TIME &my_time, int *warnings);
282unsigned long long int TIME_to_ulonglong_time_round(const MYSQL_TIME &my_time);
283
284/**
285 Round any MYSQL_TIME timepoint and convert to ulonglong.
286 @param my_time input
287 @param[out] warnings warning vector
288 @return time point as ulonglong
289 */
290inline unsigned long long int TIME_to_ulonglong_round(const MYSQL_TIME &my_time,
291 int *warnings) {
292 switch (my_time.time_type) {
299 default:
300 assert(false);
301 return 0;
302 }
303}
304
305/**
306 Extract the microsecond part of a MYSQL_TIME struct as an n *
307 (1/10^6) fraction as a double.
308
309 @return microseconds part as double
310 */
311inline double TIME_microseconds(const MYSQL_TIME &my_time) {
312 return static_cast<double>(my_time.second_part) / 1000000.0;
313}
314
315/**
316 Convert a MYSQL_TIME datetime to double where the integral part is
317 the timepoint as an ulonglong, and the fractional part is the
318 fraction of the second.
319
320 @param my_time datetime to convert
321 @return datetime as double
322 */
324 return static_cast<double>(TIME_to_ulonglong_datetime(my_time)) +
326}
327
328/**
329 Convert a MYSQL_TIME time to double where the integral part is
330 the timepoint as an ulonglong, and the fractional part is the
331 fraction of the second.
332
333 @param my_time time to convert
334 @return datetime as double
335 */
337 return static_cast<double>(TIME_to_ulonglong_time(my_time)) +
339}
340
341/**
342 Convert a MYSQL_TIME to double where the integral part is the
343 timepoint as an ulonglong, and the fractional part is the fraction
344 of the second. The actual time type is extracted from
345 MYSQL_TIME::time_type.
346
347 @param my_time MYSQL_TIME to convert
348 @return MYSQL_TIME as double
349 */
350inline double TIME_to_double(const MYSQL_TIME &my_time) {
351 return static_cast<double>(TIME_to_ulonglong(my_time)) +
353}
354
355/**
356 Return the fraction of the second as the number of microseconds.
357
358 @param i timepoint as longlong
359 @return frational part of an timepoint represented as an (u)longlong
360*/
361inline long long int my_packed_time_get_frac_part(long long int i) {
362 return (i % (1LL << 24));
363}
364
365long long int year_to_longlong_datetime_packed(long year);
369long long int TIME_to_longlong_packed(const MYSQL_TIME &my_time);
370
371void TIME_from_longlong_datetime_packed(MYSQL_TIME *ltime, long long int nr);
372void TIME_from_longlong_time_packed(MYSQL_TIME *ltime, long long int nr);
373void TIME_from_longlong_date_packed(MYSQL_TIME *ltime, long long int nr);
374void TIME_set_yymmdd(MYSQL_TIME *ltime, unsigned int yymmdd);
375void TIME_set_hhmmss(MYSQL_TIME *ltime, unsigned int hhmmss);
376
377void my_datetime_packed_to_binary(long long int nr, unsigned char *ptr,
378 unsigned int dec);
379long long int my_datetime_packed_from_binary(const unsigned char *ptr,
380 unsigned int dec);
381
382void my_time_packed_to_binary(long long int nr, unsigned char *ptr,
383 unsigned int dec);
384long long int my_time_packed_from_binary(const unsigned char *ptr,
385 unsigned int dec);
386
387void my_timestamp_to_binary(const my_timeval *tm, unsigned char *ptr,
388 unsigned int dec);
389void my_timestamp_from_binary(my_timeval *tm, const unsigned char *ptr,
390 unsigned int dec);
391
392bool str_to_time(const char *str, std::size_t length, MYSQL_TIME *l_time,
394
399
400/**
401 Check whether the argument holds a valid UNIX time value
402 (seconds after epoch). This function doesn't make precise check, but rather a
403 rough estimate before time zone adjustments.
404
405 @param my_time timepoint to check
406 @returns true if value satisfies the check above, false otherwise.
407*/
409 if (my_time.year < MYTIME_MIN_YEAR || my_time.year > MYTIME_MAX_YEAR)
410 return false;
411
412 return true;
413}
414
416 bool *in_dst_time_gap);
417
418void set_zero_time(MYSQL_TIME *tm, enum enum_mysql_timestamp_type time_type);
419void set_max_time(MYSQL_TIME *tm, bool neg);
420void set_max_hhmmss(MYSQL_TIME *tm);
421
422/**
423 Required buffer length for my_time_to_str, my_date_to_str,
424 my_datetime_to_str and TIME_to_string functions. Note, that the
425 caller is still responsible to check that given TIME structure
426 has values in valid ranges, otherwise size of the buffer might
427 well be insufficient. We also rely on the fact that even incorrect values
428 sent using binary protocol fit in this buffer.
429*/
430constexpr const std::size_t MAX_DATE_STRING_REP_LENGTH =
431 sizeof("YYYY-MM-DD AM HH:MM:SS.FFFFFF+HH:MM");
432
433int my_time_to_str(const MYSQL_TIME &my_time, char *to, unsigned int dec);
434int my_date_to_str(const MYSQL_TIME &my_time, char *to);
435int my_datetime_to_str(const MYSQL_TIME &my_time, char *to, unsigned int dec);
436int my_TIME_to_str(const MYSQL_TIME &my_time, char *to, unsigned int dec);
437
438void my_date_to_binary(const MYSQL_TIME *ltime, unsigned char *ptr);
439int my_timeval_to_str(const my_timeval *tm, char *to, unsigned int dec);
440
441/**
442 Available interval types used in any statement.
443
444 'interval_type' must be sorted so that simple intervals comes first,
445 ie year, quarter, month, week, day, hour, etc. The order based on
446 interval size is also important and the intervals should be kept in a
447 large to smaller order. (get_interval_value() depends on this)
448
449 @note If you change the order of elements in this enum you should fix
450 order of elements in 'interval_type_to_name' and 'interval_names'
451 arrays
452
453 @see interval_type_to_name, get_interval_value, interval_names
454*/
478
479bool date_add_interval(MYSQL_TIME *ltime, interval_type int_type,
480 Interval interval, int *warnings);
481
482/**
483 Round the input argument to the specified precision by computing
484 the remainder modulo log10 of the difference between max and
485 desired precision.
486
487 @param nr number to round
488 @param decimals desired precision
489 @return nr rounded according to the desired precision.
490*/
491inline long my_time_fraction_remainder(long nr, unsigned int decimals) {
492 assert(decimals <= DATETIME_MAX_DECIMALS);
493 return nr % static_cast<long>(log_10_int[DATETIME_MAX_DECIMALS - decimals]);
494}
495
496/**
497 Truncate the number of microseconds in MYSQL_TIME::second_part to
498 the desired precision.
499
500 @param ltime time point
501 @param decimals desired precision
502*/
503inline void my_time_trunc(MYSQL_TIME *ltime, unsigned int decimals) {
504 ltime->second_part -=
505 my_time_fraction_remainder(ltime->second_part, decimals);
506}
507
508/**
509 Alias for my_time_trunc.
510
511 @param ltime time point
512 @param decimals desired precision
513 */
514inline void my_datetime_trunc(MYSQL_TIME *ltime, unsigned int decimals) {
515 return my_time_trunc(ltime, decimals);
516}
517
518/**
519 Truncate the tv_usec member of a posix timeval struct to the
520 specified number of decimals.
521
522 @param tv timepoint/duration
523 @param decimals desired precision
524 */
525inline void my_timeval_trunc(my_timeval *tv, unsigned int decimals) {
526 tv->m_tv_usec -= my_time_fraction_remainder(tv->m_tv_usec, decimals);
527}
528
529/**
530 Predicate for fuzzyness of date.
531
532 @param my_time time point to check
533 @param fuzzydate bitfield indicating if fuzzy dates are premitted
534 @retval true if TIME_FUZZY_DATE is unset and either month or day is 0
535 @retval false otherwise
536 */
538 my_time_flags_t fuzzydate) {
539 return !(fuzzydate & TIME_FUZZY_DATE) && (!my_time.month || !my_time.day);
540}
541
542/**
543 Predicate which returns true if at least one of the date members are non-zero.
544
545 @param my_time time point to check.
546 @retval false if all the date members are zero
547 @retval true otherwise
548 */
549inline bool non_zero_date(const MYSQL_TIME &my_time) {
550 return my_time.year || my_time.month || my_time.day;
551}
552
553/**
554 Predicate which returns true if at least one of the time members are non-zero.
555
556 @param my_time time point to check.
557 @retval false if all the time members are zero
558 @retval true otherwise
559*/
560inline bool non_zero_time(const MYSQL_TIME &my_time) {
561 return my_time.hour || my_time.minute || my_time.second ||
562 my_time.second_part;
563}
564
565/**
566 "Casts" MYSQL_TIME datetime to a MYSQL_TIME time. Sets
567 MYSQL_TIME::time_type to MYSQL_TIMESTAMP_TIME and zeroes out the
568 date members.
569
570 @param ltime timepoint to cast
571 */
572inline void datetime_to_time(MYSQL_TIME *ltime) {
573 ltime->year = 0;
574 ltime->month = 0;
575 ltime->day = 0;
577}
578
579/**
580 "Casts" MYSQL_TIME datetime to a MYSQL_TIME date. Sets
581 MYSQL_TIME::time_type to MYSQL_TIMESTAMP_DATE and zeroes out the
582 time members.
583
584 @param ltime timepoint to cast
585*/
586inline void datetime_to_date(MYSQL_TIME *ltime) {
587 ltime->hour = 0;
588 ltime->minute = 0;
589 ltime->second = 0;
590 ltime->second_part = 0;
592}
593
594/**
595 "Casts" a MYSQL_TIME to datetime by setting MYSQL_TIME::time_type to
596 MYSQL_TIMESTAMP_DATETIME.
597 @note There is no check to ensure that the result is a valid datetime.
598
599 @param ltime timpoint to cast
600*/
601inline void date_to_datetime(MYSQL_TIME *ltime) {
603}
604
606 unsigned int nanoseconds,
607 int *warnings);
609 unsigned int nanoseconds);
611 unsigned int nanoseconds, int *warnings);
612
614 unsigned int nanoseconds,
615 int *warnings);
616
618 unsigned int nanoseconds, int *warnings,
619 bool truncate);
620
622 unsigned int nanoseconds,
623 int *warnings, bool truncate);
624
625bool my_time_adjust_frac(MYSQL_TIME *ltime, unsigned int dec, bool truncate);
626bool my_datetime_adjust_frac(MYSQL_TIME *ltime, unsigned int dec, int *warnings,
627 bool truncate);
628bool my_timeval_round(my_timeval *tv, unsigned int decimals);
630
631void localtime_to_TIME(MYSQL_TIME *to, const struct tm *from);
632void calc_time_from_sec(MYSQL_TIME *to, long long int seconds,
633 long microseconds);
634bool calc_time_diff(const MYSQL_TIME &my_time1, const MYSQL_TIME &my_time2,
635 int l_sign, long long int *seconds_out,
636 long *microseconds_out);
637int my_time_compare(const MYSQL_TIME &my_time_a, const MYSQL_TIME &my_time_b);
638
639long long int TIME_to_longlong_packed(const MYSQL_TIME &my_time,
641
643 long long int packed_value);
644
646 long long int packed_value);
647
649 long long int packed_value);
650
651/**
652 @} (end of ingroup MY_TIME)
653*/
654#endif /* MY_TIME_INCLUDED */
This file contains the field type.
enum_field_types
Column types for MySQL Note: Keep include/mysql/components/services/bits/stored_program_bits....
Definition: field_types.h:55
static const std::string dec("DECRYPTION")
unsigned long long int TIME_to_ulonglong_date(const MYSQL_TIME &my_time)
Convert MYSQL_TIME value to integer in YYYYMMDD format.
Definition: my_time.cc:1550
my_time_t my_system_gmt_sec(const MYSQL_TIME &my_time, my_time_t *my_timezone, bool *in_dst_time_gap)
Convert time in MYSQL_TIME representation in system time zone to its my_time_t form (number of second...
Definition: my_time.cc:1080
long long int TIME_to_longlong_time_packed(const MYSQL_TIME &my_time)
Convert time value to numeric packed representation.
Definition: my_time.cc:1691
uint64_t convert_month_to_period(uint64_t month)
Convert month to period.
Definition: my_time.cc:2271
unsigned long long int TIME_to_ulonglong(const MYSQL_TIME &my_time)
Convert struct MYSQL_TIME (date and time split into year/month/day/hour/... to a number in format YYY...
Definition: my_time.cc:1613
long long int longlong_from_datetime_packed(enum enum_field_types type, long long int packed_value)
Convert packed numeric representation to unpacked numeric representation.
Definition: my_time.cc:2860
bool str_to_datetime(const char *str, std::size_t length, MYSQL_TIME *l_time, my_time_flags_t flags, MYSQL_TIME_STATUS *status)
Convert a timestamp string to a MYSQL_TIME value.
Definition: my_time.cc:366
void localtime_to_TIME(MYSQL_TIME *to, const struct tm *from)
Converts a timepoint in a posix tm struct to a MYSQL_TIME struct.
Definition: my_time.cc:2681
bool calc_time_diff(const MYSQL_TIME &my_time1, const MYSQL_TIME &my_time2, int l_sign, long long int *seconds_out, long *microseconds_out)
Calculate difference between two datetime values as seconds + microseconds.
Definition: my_time.cc:2733
void TIME_from_longlong_time_packed(MYSQL_TIME *ltime, long long int nr)
Convert time packed numeric representation to time.
Definition: my_time.cc:1706
unsigned long long int TIME_to_ulonglong_time(const MYSQL_TIME &my_time)
Convert MYSQL_TIME value to integer in HHMMSS format.
Definition: my_time.cc:1563
void set_max_time(MYSQL_TIME *tm, bool neg)
Set MYSQL_TIME variable to maximum time value.
Definition: my_time.cc:164
bool time_zone_displacement_to_seconds(const char *str, size_t length, int *result)
Parses a time zone displacement string on the form {+-}HH:MM, converting to seconds.
Definition: my_time.cc:278
const char my_zero_datetime6[]
Definition: my_time.cc:84
bool check_date(const MYSQL_TIME &ltime, bool not_zero_date, my_time_flags_t flags, int *was_cut)
Check datetime value for validity according to flags.
Definition: my_time.cc:189
long long int year_to_longlong_datetime_packed(long year)
Convert year to packed numeric date representation.
Definition: my_time.cc:1892
void set_max_hhmmss(MYSQL_TIME *tm)
Set hour, minute and second of a MYSQL_TIME variable to maximum time value.
Definition: my_time.cc:153
int my_time_compare(const MYSQL_TIME &my_time_a, const MYSQL_TIME &my_time_b)
Compare tow MYSQL_TIME objects.
Definition: my_time.cc:2787
void TIME_from_longlong_date_packed(MYSQL_TIME *ltime, long long int nr)
Convert packed numeric date representation to MYSQL_TIME.
Definition: my_time.cc:1936
bool check_time_range_quick(const MYSQL_TIME &my_time)
Check TIME range.
Definition: my_time.cc:235
void my_init_time()
Prepare offset of system time zone from UTC for my_system_gmt_sec() func.
Definition: my_time.cc:998
bool check_datetime_range(const MYSQL_TIME &my_time)
Check datetime, date, or normalized time (i.e.
Definition: my_time.cc:253
void calc_time_from_sec(MYSQL_TIME *to, long long int seconds, long microseconds)
Initialize MYSQL_TIME with MYSQL_TIMESTAMP_TIME from given number of seconds and microseconds.
Definition: my_time.cc:2697
long long int TIME_to_longlong_packed(const MYSQL_TIME &my_time)
Convert a temporal value to packed numeric temporal representation, depending on its time_type.
Definition: my_time.cc:2093
void mix_date_and_time(MYSQL_TIME *ldate, const MYSQL_TIME &my_time)
Mix a date value and a time value.
Definition: my_time.cc:2640
void adjust_time_range(MYSQL_TIME *, int *warning)
Adjust 'time' value to lie in the MYSQL_TIME range.
Definition: my_time.cc:986
int my_date_to_str(const MYSQL_TIME &my_time, char *to)
Converts a date value to a string with the format 'YYYY-MM-DD'.
Definition: my_time.cc:1315
const unsigned long long int log_10_int[20]
Definition: my_time.cc:63
const unsigned char days_in_month[]
Definition: my_time.cc:90
unsigned long long int TIME_to_ulonglong_time_round(const MYSQL_TIME &my_time)
Round MYSQL_TIME time value and convert to to ulonglong representation.
Definition: my_time.cc:1655
void TIME_from_longlong_packed(MYSQL_TIME *ltime, enum enum_field_types type, long long int packed_value)
Convert packed numeric temporal representation to time, date or datetime, using field type.
Definition: my_time.cc:2831
bool date_add_interval(MYSQL_TIME *ltime, interval_type int_type, Interval interval, int *warnings)
Add an interval to a MYSQL_TIME struct.
Definition: my_time.cc:2286
void my_date_to_binary(const MYSQL_TIME *ltime, unsigned char *ptr)
Convert in-memory date representation to on-disk representation.
Definition: my_time.cc:2081
unsigned long long int TIME_to_ulonglong_datetime(const MYSQL_TIME &my_time)
Convert time value to integer in YYYYMMDDHHMMSS.
Definition: my_time.cc:1536
unsigned long long int TIME_to_ulonglong_datetime_round(const MYSQL_TIME &my_time, int *warnings)
Round MYSQL_TIME datetime value and convert to ulonglong representation.
Definition: my_time.cc:1638
long long int TIME_to_longlong_datetime_packed(const MYSQL_TIME &my_time)
Convert datetime to packed numeric datetime representation.
Definition: my_time.cc:1863
bool number_to_time(long long int nr, MYSQL_TIME *ltime, int *warnings)
Convert number to TIME.
Definition: my_time.cc:945
double double_from_datetime_packed(enum enum_field_types type, long long int packed_value)
Convert packed numeric temporal representation to unpacked numeric representation.
Definition: my_time.cc:2890
uint64_t convert_period_to_month(uint64_t period)
Calculate month from period.
Definition: my_time.cc:2254
void set_zero_time(MYSQL_TIME *tm, enum enum_mysql_timestamp_type time_type)
Set MYSQL_TIME structure to 0000-00-00 00:00:00.000000.
Definition: my_time.cc:144
bool str_to_time(const char *str, std::size_t length, MYSQL_TIME *l_time, MYSQL_TIME_STATUS *status, my_time_flags_t flags=0)
Convert a time string to a MYSQL_TIME struct.
Definition: my_time.cc:738
long long int number_to_datetime(long long int nr, MYSQL_TIME *time_res, my_time_flags_t flags, int *was_cut)
Convert datetime value specified as number to broken-down TIME representation and form value of DATET...
Definition: my_time.cc:1455
bool check_time_mmssff_range(const MYSQL_TIME &my_time)
Check if TIME fields can be adjusted to make the time value valid.
Definition: my_time.cc:218
void TIME_from_longlong_datetime_packed(MYSQL_TIME *ltime, long long int nr)
Convert packed numeric datetime representation to MYSQL_TIME.
Definition: my_time.cc:1903
int calc_weekday(long daynr, bool sunday_first_day_of_week)
Calc weekday from daynr.
Definition: my_time.cc:2161
long long int TIME_to_longlong_date_packed(const MYSQL_TIME &my_time)
Convert date to packed numeric date representation.
Definition: my_time.cc:1881
static int flags[50]
Definition: hp_test1.cc:40
time_t my_time(int)
Return current time.
Definition: my_systime.h:171
long long int my_datetime_packed_from_binary(const unsigned char *ptr, unsigned int dec)
constexpr const int MYTIME_MIN_YEAR
Definition: my_time.h:68
void my_time_trunc(MYSQL_TIME *ltime, unsigned int decimals)
Truncate the number of microseconds in MYSQL_TIME::second_part to the desired precision.
Definition: my_time.h:503
void get_date_from_daynr(int64_t daynr, unsigned int *year, unsigned int *month, unsigned int *day)
constexpr const int DAYS_PER_LYEAR
Definition: my_time.h:150
bool time_add_nanoseconds_with_round(MYSQL_TIME *ltime, unsigned int nanoseconds, int *warnings)
void date_to_datetime(MYSQL_TIME *ltime)
"Casts" a MYSQL_TIME to datetime by setting MYSQL_TIME::time_type to MYSQL_TIMESTAMP_DATETIME.
Definition: my_time.h:601
constexpr const bool HAVE_64_BITS_TIME_T
Definition: my_time.h:60
constexpr const my_time_flags_t TIME_NO_ZERO_IN_DATE
Don't allow zero day or zero month.
Definition: my_time.h:106
constexpr const int YY_PART_YEAR
Two-digit years < this are 20XX; >= this are 19XX.
Definition: my_time.h:67
bool validate_my_time(const MYSQL_TIME &my_time)
Check whether the argument holds a valid UNIX time value (seconds after epoch).
Definition: my_time.h:408
void my_time_packed_to_binary(long long int nr, unsigned char *ptr, unsigned int dec)
bool datetime_add_nanoseconds_adjust_frac(MYSQL_TIME *ltime, unsigned int nanoseconds, int *warnings, bool truncate)
long long int my_packed_time_get_frac_part(long long int i)
Return the fraction of the second as the number of microseconds.
Definition: my_time.h:361
void my_datetime_trunc(MYSQL_TIME *ltime, unsigned int decimals)
Alias for my_time_trunc.
Definition: my_time.h:514
int my_time_to_str(const MYSQL_TIME &my_time, char *to, unsigned int dec)
unsigned int calc_days_in_year(unsigned int year)
constexpr const int MYSQL_TIME_WARN_INVALID_TIMESTAMP
Definition: my_time.h:120
constexpr const my_time_flags_t TIME_INVALID_DATES
Allow 2000-02-31.
Definition: my_time.h:112
double TIME_to_double(const MYSQL_TIME &my_time)
Convert a MYSQL_TIME to double where the integral part is the timepoint as an ulonglong,...
Definition: my_time.h:350
bool datetime_add_nanoseconds_with_round(MYSQL_TIME *ltime, unsigned int nanoseconds, int *warnings)
double TIME_to_double_time(const MYSQL_TIME &my_time)
Convert a MYSQL_TIME time to double where the integral part is the timepoint as an ulonglong,...
Definition: my_time.h:336
constexpr const int MYSQL_TIME_NOTE_TRUNCATED
Definition: my_time.h:122
bool non_zero_date(const MYSQL_TIME &my_time)
Predicate which returns true if at least one of the date members are non-zero.
Definition: my_time.h:549
constexpr const int TIMESTAMP_MAX_YEAR
Definition: my_time.h:64
constexpr const int MYSQL_TIME_WARN_TRUNCATED
Conversion warnings.
Definition: my_time.h:118
constexpr const unsigned int WEEK_FIRST_WEEKDAY
Definition: my_time.h:160
constexpr const int MINS_PER_HOUR
Definition: my_time.h:146
constexpr const my_time_flags_t TIME_DATETIME_ONLY
Only allow full datetimes.
Definition: my_time.h:100
constexpr const int TIME_MAX_HOUR
Limits for the TIME data type.
Definition: my_time.h:130
bool time_add_nanoseconds_adjust_frac(MYSQL_TIME *ltime, unsigned int nanoseconds, int *warnings, bool truncate)
constexpr const unsigned int WEEK_YEAR
Definition: my_time.h:159
constexpr const my_time_t MYTIME_MAX_VALUE
max seconds from epoch of host's time_t stored in my_time_t Windows allows up to 3001-01-18 23:59:59 ...
Definition: my_time.h:75
double TIME_microseconds(const MYSQL_TIME &my_time)
Extract the microsecond part of a MYSQL_TIME struct as an n * (1/10^6) fraction as a double.
Definition: my_time.h:311
bool time_add_nanoseconds_with_truncate(MYSQL_TIME *ltime, unsigned int nanoseconds, int *warnings)
constexpr const my_time_flags_t TIME_NO_ZERO_DATE
Don't allow 0000-00-00 date.
Definition: my_time.h:109
constexpr const int DATETIME_MAX_DECIMALS
Definition: my_time.h:143
constexpr const int MAX_TIME_ZONE_HOURS
Definition: my_time.h:155
constexpr const int MYSQL_TIME_WARN_DATETIME_OVERFLOW
Definition: my_time.h:124
constexpr const int HOURS_PER_DAY
Definition: my_time.h:147
constexpr const int TIME_MAX_MINUTE
Definition: my_time.h:131
long long int my_time_packed_from_binary(const unsigned char *ptr, unsigned int dec)
bool check_fuzzy_date(const MYSQL_TIME &my_time, my_time_flags_t fuzzydate)
Predicate for fuzzyness of date.
Definition: my_time.h:537
constexpr const int64_t MAX_DAY_NUMBER
Daynumber from year 0 to 9999-12-31.
Definition: my_time.h:163
constexpr const int DAYS_PER_NYEAR
Definition: my_time.h:149
void my_timeval_trunc(my_timeval *tv, unsigned int decimals)
Truncate the tv_usec member of a posix timeval struct to the specified number of decimals.
Definition: my_time.h:525
void my_datetime_packed_to_binary(long long int nr, unsigned char *ptr, unsigned int dec)
void datetime_to_date(MYSQL_TIME *ltime)
"Casts" MYSQL_TIME datetime to a MYSQL_TIME date.
Definition: my_time.h:586
constexpr const int SECS_PER_DAY
Definition: my_time.h:152
unsigned int year_2000_handling(unsigned int year)
constexpr const int MYSQL_TIME_WARN_ZERO_IN_DATE
Definition: my_time.h:123
unsigned int calc_week(const MYSQL_TIME &l_time, unsigned int week_behaviour, unsigned int *year)
constexpr const my_time_flags_t TIME_FUZZY_DATE
Allow zero day and zero month.
Definition: my_time.h:97
bool my_time_adjust_frac(MYSQL_TIME *ltime, unsigned int dec, bool truncate)
long my_time_fraction_remainder(long nr, unsigned int decimals)
Round the input argument to the specified precision by computing the remainder modulo log10 of the di...
Definition: my_time.h:491
constexpr const int TIME_MAX_VALUE
Note that this MUST be a signed type, as we use the unary - operator on it.
Definition: my_time.h:137
bool is_time_t_valid_for_timestamp(time_t x)
Check for valid my_time_t value.
Definition: my_time.h:260
void my_timestamp_to_binary(const my_timeval *tm, unsigned char *ptr, unsigned int dec)
constexpr const int TIME_MAX_VALUE_SECONDS
Definition: my_time.h:140
void TIME_set_hhmmss(MYSQL_TIME *ltime, unsigned int hhmmss)
bool my_timeval_round(my_timeval *tv, unsigned int decimals)
constexpr const int64_t SECONDS_IN_24H
Useful constants.
Definition: my_time.h:127
constexpr const int TIME_MAX_SECOND
Definition: my_time.h:132
bool datetime_add_nanoseconds_with_truncate(MYSQL_TIME *ltime, unsigned int nanoseconds)
double TIME_to_double_datetime(const MYSQL_TIME &my_time)
Convert a MYSQL_TIME datetime to double where the integral part is the timepoint as an ulonglong,...
Definition: my_time.h:323
void datetime_to_time(MYSQL_TIME *ltime)
"Casts" MYSQL_TIME datetime to a MYSQL_TIME time.
Definition: my_time.h:572
long calc_daynr(unsigned int year, unsigned int month, unsigned int day)
unsigned long long int TIME_to_ulonglong_round(const MYSQL_TIME &my_time, int *warnings)
Round any MYSQL_TIME timepoint and convert to ulonglong.
Definition: my_time.h:290
constexpr const int MYTIME_MIN_VALUE
Zero represents the first time value we allow, i.e.
Definition: my_time.h:84
constexpr const std::int64_t TYPE_TIMESTAMP_MIN_VALUE
Definition: my_time.h:91
constexpr const my_time_flags_t TIME_NO_DATE_FRAC_WARN
Definition: my_time.h:103
void TIME_set_yymmdd(MYSQL_TIME *ltime, unsigned int yymmdd)
constexpr const int MYTIME_MAX_YEAR
Time handling defaults.
Definition: my_time.h:63
bool my_datetime_adjust_frac(MYSQL_TIME *ltime, unsigned int dec, int *warnings, bool truncate)
void my_timestamp_from_binary(my_timeval *tm, const unsigned char *ptr, unsigned int dec)
constexpr const std::int64_t TYPE_TIMESTAMP_MAX_VALUE
max seconds from epoch that can be stored in a column of type TIMESTAMP.
Definition: my_time.h:89
bool non_zero_time(const MYSQL_TIME &my_time)
Predicate which returns true if at least one of the time members are non-zero.
Definition: my_time.h:560
constexpr const int MYSQL_TIME_WARN_OUT_OF_RANGE
Definition: my_time.h:119
constexpr const int MONS_PER_YEAR
Definition: my_time.h:153
bool valid_period(long long int period)
unsigned int my_time_flags_t
Flags to str_to_datetime and number_to_datetime.
Definition: my_time.h:94
constexpr const unsigned int WEEK_MONDAY_FIRST
Flags for calc_week() function.
Definition: my_time.h:158
constexpr const std::size_t MAX_DATE_STRING_REP_LENGTH
Required buffer length for my_time_to_str, my_date_to_str, my_datetime_to_str and TIME_to_string func...
Definition: my_time.h:430
int my_TIME_to_str(const MYSQL_TIME &my_time, char *to, unsigned int dec)
constexpr const int MYSQL_TIME_WARN_ZERO_DATE
Definition: my_time.h:121
constexpr const int DAYS_PER_WEEK
Definition: my_time.h:148
constexpr const my_time_flags_t TIME_FRAC_TRUNCATE
Definition: my_time.h:102
interval_type
Available interval types used in any statement.
Definition: my_time.h:455
@ INTERVAL_HOUR_SECOND
Definition: my_time.h:470
@ INTERVAL_MONTH
Definition: my_time.h:458
@ INTERVAL_HOUR_MICROSECOND
Definition: my_time.h:473
@ INTERVAL_MINUTE
Definition: my_time.h:462
@ INTERVAL_HOUR_MINUTE
Definition: my_time.h:469
@ INTERVAL_DAY
Definition: my_time.h:460
@ INTERVAL_LAST
Definition: my_time.h:476
@ INTERVAL_MINUTE_MICROSECOND
Definition: my_time.h:474
@ INTERVAL_MINUTE_SECOND
Definition: my_time.h:471
@ INTERVAL_QUARTER
Definition: my_time.h:457
@ INTERVAL_YEAR
Definition: my_time.h:456
@ INTERVAL_WEEK
Definition: my_time.h:459
@ INTERVAL_DAY_MICROSECOND
Definition: my_time.h:472
@ INTERVAL_SECOND_MICROSECOND
Definition: my_time.h:475
@ INTERVAL_SECOND
Definition: my_time.h:463
@ INTERVAL_DAY_HOUR
Definition: my_time.h:466
@ INTERVAL_HOUR
Definition: my_time.h:461
@ INTERVAL_YEAR_MONTH
Definition: my_time.h:465
@ INTERVAL_DAY_SECOND
Definition: my_time.h:468
@ INTERVAL_MICROSECOND
Definition: my_time.h:464
@ INTERVAL_DAY_MINUTE
Definition: my_time.h:467
int my_timeval_to_str(const my_timeval *tm, char *to, unsigned int dec)
constexpr const int SECS_PER_MIN
Definition: my_time.h:145
constexpr const int SECS_PER_HOUR
Definition: my_time.h:151
constexpr const my_time_flags_t TIME_STRICT_COLON
Allow only HH:MM:SS or MM:SS time formats.
Definition: my_time.h:115
int my_datetime_to_str(const MYSQL_TIME &my_time, char *to, unsigned int dec)
int64_t my_time_t
Portable time_t replacement.
Definition: my_time_t.h:32
Time declarations shared between the server and client API: you should not add anything to this heade...
enum_mysql_timestamp_type
Definition: mysql_time.h:45
@ MYSQL_TIMESTAMP_TIME
Stores hour, minute, second and microsecond.
Definition: mysql_time.h:60
@ MYSQL_TIMESTAMP_DATETIME
Stores all date and time components.
Definition: mysql_time.h:57
@ MYSQL_TIMESTAMP_DATE
Stores year, month and day components.
Definition: mysql_time.h:50
static int interval
Definition: mysqladmin.cc:71
void warning(const char *format,...)
std::string str(const mysqlrouter::ConfigGenerator::Options::Endpoint &ep)
Definition: config_generator.cc:1081
bool length(const dd::Spatial_reference_system *srs, const Geometry *g1, double *length, bool *null) noexcept
Computes the length of linestrings and multilinestrings.
Definition: length.cc:76
size_t size(const char *const c)
Definition: base64.h:46
Cursor end()
A past-the-end Cursor.
Definition: rules_table_service.cc:192
required uint32 status
Definition: replication_asynchronous_connection_failover.proto:61
required string type
Definition: replication_group_member_actions.proto:34
Struct representing a duration.
Definition: my_time.h:228
bool neg
Definition: my_time.h:236
unsigned long long int second
Definition: my_time.h:234
unsigned long long int second_part
Definition: my_time.h:235
unsigned long int hour
Definition: my_time.h:232
unsigned long int day
Definition: my_time.h:231
unsigned long int month
Definition: my_time.h:230
unsigned long int year
Definition: my_time.h:229
unsigned long long int minute
Definition: my_time.h:233
Definition: my_time.h:174
DEPR_KIND
Definition: my_time.h:175
@ DP_SUPERFLUOUS
Definition: my_time.h:179
@ DP_WRONG_SPACE
Definition: my_time.h:178
@ DP_NONE
Definition: my_time.h:176
@ DP_WRONG_KIND
Definition: my_time.h:177
char m_delim_seen
Definition: my_time.h:181
char m_arg[40]
Definition: my_time.h:184
enum MYSQL_TIME_STATUS::DEPRECATION::DEPR_KIND DP_NONE
int m_position
Definition: my_time.h:183
bool m_colon
Definition: my_time.h:182
Structure to return status from str_to_datetime(), str_to_time(), number_to_datetime(),...
Definition: my_time.h:170
unsigned int nanoseconds
Definition: my_time.h:173
MYSQL_TIME_STATUS()=default
struct MYSQL_TIME_STATUS::DEPRECATION m_deprecation
Register wrong delimiter if it's the first we see for this value.
void squelch_deprecation()
Definition: my_time.h:221
void set_deprecation(DEPRECATION::DEPR_KIND kind, const char *arg, const char *end, const char *delim, bool colon=false)
Definition: my_time.h:192
MYSQL_TIME_STATUS & operator=(const MYSQL_TIME_STATUS &b)
Assignment: don't clobber an existing deprecation, first one wins.
Definition: my_time.h:211
int warnings
Definition: my_time.h:171
unsigned int fractional_digits
Definition: my_time.h:172
MYSQL_TIME_STATUS(const MYSQL_TIME_STATUS &)=default
Definition: mysql_time.h:82
unsigned long second_part
microseconds
Definition: mysql_time.h:84
unsigned int second
Definition: mysql_time.h:83
enum enum_mysql_timestamp_type time_type
Definition: mysql_time.h:86
unsigned int hour
Definition: mysql_time.h:83
unsigned int minute
Definition: mysql_time.h:83
unsigned int month
Definition: mysql_time.h:83
unsigned int day
Definition: mysql_time.h:83
unsigned int year
Definition: mysql_time.h:83
Replacement of system's struct timeval to ensure we can carry 64 bit values even on a platform which ...
Definition: my_time_t.h:45
int64_t m_tv_usec
Definition: my_time_t.h:47
Definition: result.h:30
double seconds()
Definition: task.cc:310
Include file for Sun RPC to compile out of the box.