2004-05-21 07:08:06 +02:00
|
|
|
/*-------------------------------------------------------------------------
|
|
|
|
*
|
|
|
|
* pgtz.h
|
|
|
|
* Timezone Library Integration Functions
|
|
|
|
*
|
|
|
|
* Note: this file contains only definitions that are private to the
|
|
|
|
* timezone library. Public definitions are in pgtime.h.
|
|
|
|
*
|
2024-01-04 02:49:05 +01:00
|
|
|
* Portions Copyright (c) 1996-2024, PostgreSQL Global Development Group
|
2004-05-21 07:08:06 +02:00
|
|
|
*
|
|
|
|
* IDENTIFICATION
|
2010-09-20 22:08:53 +02:00
|
|
|
* src/timezone/pgtz.h
|
2004-05-21 07:08:06 +02:00
|
|
|
*
|
|
|
|
*-------------------------------------------------------------------------
|
|
|
|
*/
|
|
|
|
#ifndef _PGTZ_H
|
|
|
|
#define _PGTZ_H
|
2004-04-30 06:09:23 +02:00
|
|
|
|
2006-07-11 15:54:25 +02:00
|
|
|
#include "pgtime.h"
|
2016-03-28 21:10:17 +02:00
|
|
|
#include "tzfile.h"
|
2005-04-19 05:13:59 +02:00
|
|
|
|
2004-04-30 22:01:39 +02:00
|
|
|
|
2016-03-28 21:10:17 +02:00
|
|
|
#define SMALLEST(a, b) (((a) < (b)) ? (a) : (b))
|
2005-04-19 05:13:59 +02:00
|
|
|
#define BIGGEST(a, b) (((a) > (b)) ? (a) : (b))
|
|
|
|
|
|
|
|
struct ttinfo
|
|
|
|
{ /* time type information */
|
2019-07-18 00:26:23 +02:00
|
|
|
int32 tt_utoff; /* UT offset in seconds */
|
2016-03-28 21:10:17 +02:00
|
|
|
bool tt_isdst; /* used to set tm_isdst */
|
2019-07-18 00:26:23 +02:00
|
|
|
int tt_desigidx; /* abbreviation list index */
|
2016-03-28 21:10:17 +02:00
|
|
|
bool tt_ttisstd; /* transition is std time */
|
2019-07-18 00:26:23 +02:00
|
|
|
bool tt_ttisut; /* transition is UT */
|
2005-04-19 05:13:59 +02:00
|
|
|
};
|
|
|
|
|
|
|
|
struct lsinfo
|
|
|
|
{ /* leap second information */
|
|
|
|
pg_time_t ls_trans; /* transition time */
|
2016-03-28 21:10:17 +02:00
|
|
|
int64 ls_corr; /* correction to apply */
|
2005-04-19 05:13:59 +02:00
|
|
|
};
|
|
|
|
|
|
|
|
struct state
|
|
|
|
{
|
|
|
|
int leapcnt;
|
|
|
|
int timecnt;
|
|
|
|
int typecnt;
|
|
|
|
int charcnt;
|
2016-03-28 21:10:17 +02:00
|
|
|
bool goback;
|
|
|
|
bool goahead;
|
2005-04-19 05:13:59 +02:00
|
|
|
pg_time_t ats[TZ_MAX_TIMES];
|
|
|
|
unsigned char types[TZ_MAX_TIMES];
|
|
|
|
struct ttinfo ttis[TZ_MAX_TYPES];
|
2018-10-20 01:36:34 +02:00
|
|
|
char chars[BIGGEST(BIGGEST(TZ_MAX_CHARS + 1, 4 /* sizeof gmt */ ),
|
2005-04-19 05:13:59 +02:00
|
|
|
(2 * (TZ_STRLEN_MAX + 1)))];
|
|
|
|
struct lsinfo lsis[TZ_MAX_LEAPS];
|
2018-10-20 01:36:34 +02:00
|
|
|
|
|
|
|
/*
|
|
|
|
* The time type to use for early times or if no transitions. It is always
|
|
|
|
* zero for recent tzdb releases. It might be nonzero for data from tzdb
|
|
|
|
* 2018e or earlier.
|
|
|
|
*/
|
|
|
|
int defaulttype;
|
2005-04-19 05:13:59 +02:00
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
struct pg_tz
|
|
|
|
{
|
2006-10-16 21:58:27 +02:00
|
|
|
/* TZname contains the canonically-cased name of the timezone */
|
2005-04-19 05:13:59 +02:00
|
|
|
char TZname[TZ_STRLEN_MAX + 1];
|
|
|
|
struct state state;
|
|
|
|
};
|
|
|
|
|
2006-10-16 21:58:27 +02:00
|
|
|
|
|
|
|
/* in pgtz.c */
|
|
|
|
extern int pg_open_tzfile(const char *name, char *canonname);
|
|
|
|
|
|
|
|
/* in localtime.c */
|
2008-02-16 22:16:04 +01:00
|
|
|
extern int tzload(const char *name, char *canonname, struct state *sp,
|
2016-03-28 23:19:29 +02:00
|
|
|
bool doextend);
|
|
|
|
extern bool tzparse(const char *name, struct state *sp, bool lastditch);
|
2005-04-19 05:13:59 +02:00
|
|
|
|
2004-05-21 14:30:25 +02:00
|
|
|
#endif /* _PGTZ_H */
|