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Diffstat (limited to 'src/include/utils/datetime.h')
| -rw-r--r-- | src/include/utils/datetime.h | 296 |
1 files changed, 0 insertions, 296 deletions
diff --git a/src/include/utils/datetime.h b/src/include/utils/datetime.h deleted file mode 100644 index 08773fe0b15..00000000000 --- a/src/include/utils/datetime.h +++ /dev/null @@ -1,296 +0,0 @@ -/*------------------------------------------------------------------------- - * - * datetime.h - * Definitions for the date/time and other date/time support code. - * The support code is shared with other date data types, - * including abstime, reltime, date, and time. - * - * - * Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group - * Portions Copyright (c) 1994, Regents of the University of California - * - * $Id: datetime.h,v 1.32 2002/06/20 20:29:52 momjian Exp $ - * - *------------------------------------------------------------------------- - */ -#ifndef DATETIME_H -#define DATETIME_H - -#include <time.h> -#include <math.h> -#include <limits.h> - -#include "utils/timestamp.h" - - -/* ---------------------------------------------------------------- - * time types + support macros - * - * String definitions for standard time quantities. - * - * These strings are the defaults used to form output time strings. - * Other alternate forms are hardcoded into token tables in datetime.c. - * ---------------------------------------------------------------- - */ - -#define DAGO "ago" -#define DCURRENT "current" -#define EPOCH "epoch" -#define INVALID "invalid" -#define EARLY "-infinity" -#define LATE "infinity" -#define NOW "now" -#define TODAY "today" -#define TOMORROW "tomorrow" -#define YESTERDAY "yesterday" -#define ZULU "zulu" - -#define DMICROSEC "usecond" -#define DMILLISEC "msecond" -#define DSECOND "second" -#define DMINUTE "minute" -#define DHOUR "hour" -#define DDAY "day" -#define DWEEK "week" -#define DMONTH "month" -#define DQUARTER "quarter" -#define DYEAR "year" -#define DDECADE "decade" -#define DCENTURY "century" -#define DMILLENNIUM "millennium" -#define DA_D "ad" -#define DB_C "bc" -#define DTIMEZONE "timezone" - -/* - * Fundamental time field definitions for parsing. - * - * Meridian: am, pm, or 24-hour style. - * Millennium: ad, bc - */ - -#define AM 0 -#define PM 1 -#define HR24 2 - -#define AD 0 -#define BC 1 - -/* - * Fields for time decoding. - * - * Can't have more of these than there are bits in an unsigned int - * since these are turned into bit masks during parsing and decoding. - * - * Furthermore, the values for YEAR, MONTH, DAY, HOUR, MINUTE, SECOND - * must be in the range 0..14 so that the associated bitmasks can fit - * into the left half of an INTERVAL's typmod value. - */ - -#define RESERV 0 -#define MONTH 1 -#define YEAR 2 -#define DAY 3 -#define JULIAN 4 -#define TZ 5 -#define DTZ 6 -#define DTZMOD 7 -#define IGNORE_DTF 8 -#define AMPM 9 -#define HOUR 10 -#define MINUTE 11 -#define SECOND 12 -#define DOY 13 -#define DOW 14 -#define UNITS 15 -#define ADBC 16 -/* these are only for relative dates */ -#define AGO 17 -#define ABS_BEFORE 18 -#define ABS_AFTER 19 -/* generic fields to help with parsing */ -#define ISODATE 20 -#define ISOTIME 21 -/* reserved for unrecognized string values */ -#define UNKNOWN_FIELD 31 - -/* - * Token field definitions for time parsing and decoding. - * These need to fit into the datetkn table type. - * At the moment, that means keep them within [-127,127]. - * These are also used for bit masks in DecodeDateDelta() - * so actually restrict them to within [0,31] for now. - * - thomas 97/06/19 - * Not all of these fields are used for masks in DecodeDateDelta - * so allow some larger than 31. - thomas 1997-11-17 - */ - -#define DTK_NUMBER 0 -#define DTK_STRING 1 - -#define DTK_DATE 2 -#define DTK_TIME 3 -#define DTK_TZ 4 -#define DTK_AGO 5 - -#define DTK_SPECIAL 6 -#define DTK_INVALID 7 -#define DTK_CURRENT 8 -#define DTK_EARLY 9 -#define DTK_LATE 10 -#define DTK_EPOCH 11 -#define DTK_NOW 12 -#define DTK_YESTERDAY 13 -#define DTK_TODAY 14 -#define DTK_TOMORROW 15 -#define DTK_ZULU 16 - -#define DTK_DELTA 17 -#define DTK_SECOND 18 -#define DTK_MINUTE 19 -#define DTK_HOUR 20 -#define DTK_DAY 21 -#define DTK_WEEK 22 -#define DTK_MONTH 23 -#define DTK_QUARTER 24 -#define DTK_YEAR 25 -#define DTK_DECADE 26 -#define DTK_CENTURY 27 -#define DTK_MILLENNIUM 28 -#define DTK_MILLISEC 29 -#define DTK_MICROSEC 30 -#define DTK_JULIAN 31 - -#define DTK_DOW 32 -#define DTK_DOY 33 -#define DTK_TZ_HOUR 34 -#define DTK_TZ_MINUTE 35 - - -/* - * Bit mask definitions for time parsing. - */ - -#define DTK_M(t) (0x01 << (t)) - -#define DTK_DATE_M (DTK_M(YEAR) | DTK_M(MONTH) | DTK_M(DAY)) -#define DTK_TIME_M (DTK_M(HOUR) | DTK_M(MINUTE) | DTK_M(SECOND)) - -#define MAXDATELEN 51 /* maximum possible length of an input - * date string (not counting tr. null) */ -#define MAXDATEFIELDS 25 /* maximum possible number of fields in a - * date string */ -#define TOKMAXLEN 10 /* only this many chars are stored in - * datetktbl */ - -/* keep this struct small; it gets used a lot */ -typedef struct -{ -#if defined(_AIX) - char *token; -#else - char token[TOKMAXLEN]; -#endif /* _AIX */ - char type; - char value; /* this may be unsigned, alas */ -} datetkn; - - -/* TMODULO() - * Macro to replace modf(), which is broken on some platforms. - * t = input and remainder - * q = integer part - * u = divisor - */ -#ifdef HAVE_INT64_TIMESTAMP -#define TMODULO(t,q,u) \ -do { \ - q = (t / u); \ - if (q != 0) t -= (q * u); \ -} while(0) -#else -#define TMODULO(t,q,u) \ -do { \ - q = ((t < 0)? ceil(t / u): floor(t / u)); \ - if (q != 0) t -= rint(q * u); \ -} while(0) -#endif - -/* Global variable holding time zone information. */ -#if defined(__CYGWIN__) || defined(N_PLAT_NLM) -#define TIMEZONE_GLOBAL _timezone -#else -#define TIMEZONE_GLOBAL timezone -#endif - -/* - * Date/time validation - * Include check for leap year. - */ - -extern int day_tab[2][13]; - -#define isleap(y) (((y) % 4) == 0 && (((y) % 100) != 0 || ((y) % 400) == 0)) - -/* Julian date support for date2j() and j2date() - * Set the minimum year to one greater than the year of the first valid day - * to avoid having to check year and day both. - tgl 97/05/08 - */ - -#define JULIAN_MINYEAR (-4713) -#define JULIAN_MINMONTH (11) -#define JULIAN_MINDAY (23) - -#define IS_VALID_JULIAN(y,m,d) (((y) > JULIAN_MINYEAR) \ - || (((y) == JULIAN_MINYEAR) && (((m) > JULIAN_MINMONTH) \ - || (((m) == JULIAN_MINMONTH) && ((d) >= JULIAN_MINDAY))))) - -#define UTIME_MINYEAR (1901) -#define UTIME_MINMONTH (12) -#define UTIME_MINDAY (14) -#define UTIME_MAXYEAR (2038) -#define UTIME_MAXMONTH (01) -#define UTIME_MAXDAY (18) - -#define IS_VALID_UTIME(y,m,d) ((((y) > UTIME_MINYEAR) \ - || (((y) == UTIME_MINYEAR) && (((m) > UTIME_MINMONTH) \ - || (((m) == UTIME_MINMONTH) && ((d) >= UTIME_MINDAY))))) \ - && (((y) < UTIME_MAXYEAR) \ - || (((y) == UTIME_MAXYEAR) && (((m) < UTIME_MAXMONTH) \ - || (((m) == UTIME_MAXMONTH) && ((d) <= UTIME_MAXDAY)))))) - - -extern void GetCurrentDateTime(struct tm * tm); -extern void GetCurrentTimeUsec(struct tm * tm, fsec_t *fsec); -extern void j2date(int jd, int *year, int *month, int *day); -extern int date2j(int year, int month, int day); - -extern int ParseDateTime(char *timestr, char *lowstr, - char **field, int *ftype, - int maxfields, int *numfields); -extern int DecodeDateTime(char **field, int *ftype, - int nf, int *dtype, - struct tm * tm, fsec_t *fsec, int *tzp); - -extern int DecodeTimeOnly(char **field, int *ftype, - int nf, int *dtype, - struct tm * tm, fsec_t *fsec, int *tzp); - -extern int DecodeInterval(char **field, int *ftype, - int nf, int *dtype, - struct tm * tm, fsec_t *fsec); - -extern int DetermineLocalTimeZone(struct tm * tm); - -extern int EncodeDateOnly(struct tm * tm, int style, char *str); -extern int EncodeTimeOnly(struct tm * tm, fsec_t fsec, int *tzp, int style, char *str); -extern int EncodeDateTime(struct tm * tm, fsec_t fsec, int *tzp, char **tzn, int style, char *str); -extern int EncodeInterval(struct tm * tm, fsec_t fsec, int style, char *str); - -extern int DecodeSpecial(int field, char *lowtoken, int *val); -extern int DecodeUnits(int field, char *lowtoken, int *val); -extern bool ClearDateCache(bool, bool, bool); - -extern int j2day(int jd); - -#endif /* DATETIME_H */ |