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  • Committer: Bazaar Package Importer
  • Author(s): Martin Pitt
  • Date: 2011-05-11 10:41:53 UTC
  • Revision ID: james.westby@ubuntu.com-20110511104153-psbh2o58553fv1m0
Tags: upstream-9.1~beta1
Import upstream version 9.1~beta1

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src/timezone/pgtz.h
 
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/*-------------------------------------------------------------------------
 
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 *
 
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 * pgtz.h
 
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 *        Timezone Library Integration Functions
 
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 *
 
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 * Note: this file contains only definitions that are private to the
 
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 * timezone library.  Public definitions are in pgtime.h.
 
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 *
 
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 * Portions Copyright (c) 1996-2011, PostgreSQL Global Development Group
 
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 *
 
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 * IDENTIFICATION
 
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 *        src/timezone/pgtz.h
 
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 *
 
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 *-------------------------------------------------------------------------
 
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 */
 
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#ifndef _PGTZ_H
 
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#define _PGTZ_H
 
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#include "tzfile.h"
 
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#include "pgtime.h"
 
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#define BIGGEST(a, b)   (((a) > (b)) ? (a) : (b))
 
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struct ttinfo
 
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{                                                               /* time type information */
 
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        long            tt_gmtoff;              /* UTC offset in seconds */
 
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        int                     tt_isdst;               /* used to set tm_isdst */
 
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        int                     tt_abbrind;             /* abbreviation list index */
 
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        int                     tt_ttisstd;             /* TRUE if transition is std time */
 
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        int                     tt_ttisgmt;             /* TRUE if transition is UTC */
 
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};
 
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struct lsinfo
 
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{                                                               /* leap second information */
 
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        pg_time_t       ls_trans;               /* transition time */
 
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        long            ls_corr;                /* correction to apply */
 
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};
 
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struct state
 
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{
 
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        int                     leapcnt;
 
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        int                     timecnt;
 
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        int                     typecnt;
 
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        int                     charcnt;
 
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        int                     goback;
 
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        int                     goahead;
 
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        pg_time_t       ats[TZ_MAX_TIMES];
 
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        unsigned char types[TZ_MAX_TIMES];
 
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        struct ttinfo ttis[TZ_MAX_TYPES];
 
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        char            chars[BIGGEST(BIGGEST(TZ_MAX_CHARS + 1, 3 /* sizeof gmt */ ),
 
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                                                                                  (2 * (TZ_STRLEN_MAX + 1)))];
 
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        struct lsinfo lsis[TZ_MAX_LEAPS];
 
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};
 
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struct pg_tz
 
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{
 
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        /* TZname contains the canonically-cased name of the timezone */
 
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        char            TZname[TZ_STRLEN_MAX + 1];
 
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        struct state state;
 
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};
 
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/* in pgtz.c */
 
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extern int      pg_open_tzfile(const char *name, char *canonname);
 
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/* in localtime.c */
 
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extern int tzload(const char *name, char *canonname, struct state * sp,
 
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           int doextend);
 
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extern int      tzparse(const char *name, struct state * sp, int lastditch);
 
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#endif   /* _PGTZ_H */