~drizzle-trunk/drizzle/development

574.3.16 by Lee
moving functions from item_timefunc to functions/time directory
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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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 *
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 *  Copyright (C) 2008 Sun Microsystems
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 *
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 *  This program is free software; you can redistribute it and/or modify
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 *  it under the terms of the GNU General Public License as published by
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 *  the Free Software Foundation; version 2 of the License.
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 *
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 *  This program is distributed in the hope that it will be useful,
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 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 *  GNU General Public License for more details.
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 *
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 *  You should have received a copy of the GNU General Public License
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 *  along with this program; if not, write to the Free Software
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 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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 */
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#include <drizzled/server_includes.h>
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#include CSTDINT_H
670.1.20 by Monty Taylor
Renamed functions to function... everything else is singular.
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#include <drizzled/function/time/now.h>
574.3.16 by Lee
moving functions from item_timefunc to functions/time directory
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#include <drizzled/tztime.h>
584.1.15 by Monty Taylor
The mega-patch from hell. Renamed sql_class to session (since that's what it is) and removed it and field and table from common_includes.
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#include <drizzled/session.h>
574.3.16 by Lee
moving functions from item_timefunc to functions/time directory
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String *Item_func_now::val_str(String *str __attribute__((unused)))
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{
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  assert(fixed == 1);
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  str_value.set(buff,buff_length, &my_charset_bin);
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  return &str_value;
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}
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void Item_func_now::fix_length_and_dec()
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{
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  decimals= DATETIME_DEC;
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  collation.set(&my_charset_bin);
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  store_now_in_TIME(&ltime);
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  value= (int64_t) TIME_to_uint64_t_datetime(&ltime);
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  buff_length= (uint) my_datetime_to_str(&ltime, buff);
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  max_length= buff_length;
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}
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/**
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    Converts current time in my_time_t to DRIZZLE_TIME represenatation for local
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    time zone. Defines time zone (local) used for whole NOW function.
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*/
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void Item_func_now_local::store_now_in_TIME(DRIZZLE_TIME *now_time)
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{
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  Session *session= current_session;
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  session->variables.time_zone->gmt_sec_to_TIME(now_time,
685.3.4 by Toru Maesaka
Fixed the issues pointed out by Jay's code review
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                                                (time_t)session->query_start());
574.3.16 by Lee
moving functions from item_timefunc to functions/time directory
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}
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/**
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    Converts current time in my_time_t to DRIZZLE_TIME represenatation for UTC
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    time zone. Defines time zone (UTC) used for whole UTC_TIMESTAMP function.
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*/
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void Item_func_now_utc::store_now_in_TIME(DRIZZLE_TIME *now_time)
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{
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  my_tz_UTC->gmt_sec_to_TIME(now_time,
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                             (my_time_t)(current_session->query_start()));
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  /*
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    We are not flagging this query as using time zone, since it uses fixed
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    UTC-SYSTEM time-zone.
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  */
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}
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bool Item_func_now::get_date(DRIZZLE_TIME *res,
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                             uint32_t fuzzy_date __attribute__((unused)))
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{
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  *res= ltime;
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  return 0;
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}
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int Item_func_now::save_in_field(Field *to, bool no_conversions __attribute__((unused)))
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{
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  to->set_notnull();
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  return to->store_time(&ltime, DRIZZLE_TIMESTAMP_DATETIME);
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}
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