tztime.h

#ifndef TZTIME_INCLUDED
#define TZTIME_INCLUDED

/* Copyright (c) 2004, 2011, Oracle and/or its affiliates. All rights reserved.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; version 2 of the License.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software Foundation,
   51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA */


#include "my_time.h"                            /* my_time_t */
#include "mysql_time.h"                         /* MYSQL_TIME */
#include "sql_alloc.h"
#include "sql_string.h"                         /* String */

class THD;

#if !defined(TESTTIME) && !defined(TZINFO2SQL)

class THD;

class Time_zone: public Sql_alloc 
{
public:
  Time_zone() {}                              /* Remove gcc warning */
  virtual my_time_t TIME_to_gmt_sec(const MYSQL_TIME *t, 
                                    my_bool *in_dst_time_gap) const = 0;
  virtual void   gmt_sec_to_TIME(MYSQL_TIME *tmp, my_time_t t) const = 0;
  void gmt_sec_to_TIME(MYSQL_TIME *tmp, struct timeval tv)
  {
    gmt_sec_to_TIME(tmp, (my_time_t) tv.tv_sec);
    tmp->second_part= tv.tv_usec;
  }
  virtual const String * get_name() const = 0;

  virtual ~Time_zone() {};

protected:
  static inline void adjust_leap_second(MYSQL_TIME *t);
};

extern Time_zone * my_tz_UTC;
extern Time_zone * my_tz_SYSTEM;
extern Time_zone * my_tz_OFFSET0;
extern Time_zone * my_tz_find(THD *thd, const String *name);
extern my_bool     my_tz_init(THD *org_thd, const char *default_tzname, my_bool bootstrap);
extern void        my_tz_free();
extern my_time_t   sec_since_epoch_TIME(MYSQL_TIME *t);

static const int MY_TZ_TABLES_COUNT= 4;


#endif /* !defined(TESTTIME) && !defined(TZINFO2SQL) */
#endif /* TZTIME_INCLUDED */