1 /*-------------------------------------------------------------------------
4 * Timezone Library Integration Functions
6 * Note: this file contains only definitions that are private to the
7 * timezone library. Public definitions are in pgtime.h.
9 * Portions Copyright (c) 1996-2017, PostgreSQL Global Development Group
14 *-------------------------------------------------------------------------
23 #define SMALLEST(a, b) (((a) < (b)) ? (a) : (b))
24 #define BIGGEST(a, b) (((a) > (b)) ? (a) : (b))
27 { /* time type information */
28 int32 tt_gmtoff; /* UT offset in seconds */
29 bool tt_isdst; /* used to set tm_isdst */
30 int tt_abbrind; /* abbreviation list index */
31 bool tt_ttisstd; /* transition is std time */
32 bool tt_ttisgmt; /* transition is UT */
36 { /* leap second information */
37 pg_time_t ls_trans; /* transition time */
38 int64 ls_corr; /* correction to apply */
49 pg_time_t ats[TZ_MAX_TIMES];
50 unsigned char types[TZ_MAX_TIMES];
51 struct ttinfo ttis[TZ_MAX_TYPES];
52 char chars[BIGGEST(BIGGEST(TZ_MAX_CHARS + 1, 3 /* sizeof gmt */ ),
53 (2 * (TZ_STRLEN_MAX + 1)))];
54 struct lsinfo lsis[TZ_MAX_LEAPS];
55 int defaulttype; /* for early times or if no transitions */
61 /* TZname contains the canonically-cased name of the timezone */
62 char TZname[TZ_STRLEN_MAX + 1];
68 extern int pg_open_tzfile(const char *name, char *canonname);
71 extern int tzload(const char *name, char *canonname, struct state *sp,
73 extern bool tzparse(const char *name, struct state *sp, bool lastditch);