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  • Committer: Olaf van der Spek
  • Date: 2011-02-12 18:24:24 UTC
  • mto: (2167.1.2 build) (2172.1.4 build)
  • mto: This revision was merged to the branch mainline in revision 2168.
  • Revision ID: olafvdspek@gmail.com-20110212182424-kgnm9osi7qo97at2
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drizzled/time_functions.cc
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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) 2008-2009 Sun Microsystems
 
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 *  Copyright (C) 2008-2009 Sun Microsystems, Inc.
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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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}
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uint32_t calc_week(DRIZZLE_TIME *l_time, uint32_t week_behaviour, uint32_t *year)
 
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uint32_t calc_week(type::Time *l_time, uint32_t week_behaviour, uint32_t *year)
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{
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  uint32_t days;
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  uint32_t daynr= calc_daynr(l_time->year,l_time->month,l_time->day);
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    {
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      if (day_of_year > 31+28)
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      {
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        day_of_year--;
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        if (day_of_year == 31+28)
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          leap_day=1;           /* Handle leapyears leapday */
 
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        day_of_year--;
 
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        if (day_of_year == 31+28)
 
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          leap_day=1;           /* Handle leapyears leapday */
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      }
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    }
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    *ret_month=1;
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    for (month_pos= days_in_month ;
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         day_of_year > (uint32_t) *month_pos ;
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         day_of_year-= *(month_pos++), (*ret_month)++)
 
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         day_of_year > (uint32_t) *month_pos ;
 
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         day_of_year-= *(month_pos++), (*ret_month)++)
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      ;
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    *ret_year=year;
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    *ret_day=day_of_year+leap_day;
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}
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127
 
enum enum_drizzle_timestamp_type
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str_to_datetime_with_warn(const char *str, 
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                          uint32_t length, 
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                          DRIZZLE_TIME *l_time,
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                          uint32_t flags)
 
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type::timestamp_t str_to_datetime_with_warn(Session *session,
 
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                                            const char *str, 
 
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                                            uint32_t length, 
 
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                                            type::Time *l_time,
 
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                                            uint32_t flags)
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{
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  int was_cut;
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  Session *session= current_session;
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  enum enum_drizzle_timestamp_type ts_type;
 
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  type::cut_t was_cut= type::VALID;
 
134
  type::timestamp_t ts_type;
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137
 
  ts_type= str_to_datetime(str, length, l_time,
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                           (flags | (session->variables.sql_mode &
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                                     (MODE_INVALID_DATES |
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                                      MODE_NO_ZERO_DATE))),
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                           &was_cut);
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  if (was_cut || ts_type <= DRIZZLE_TIMESTAMP_ERROR)
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    make_truncated_value_warning(current_session, DRIZZLE_ERROR::WARN_LEVEL_WARN,
 
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  ts_type= l_time->store(str, length,
 
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                         (flags | (session->variables.sql_mode &
 
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                                   (MODE_INVALID_DATES |
 
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                                    MODE_NO_ZERO_DATE))),
 
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                         was_cut);
 
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  if (was_cut || ts_type <= type::DRIZZLE_TIMESTAMP_ERROR)
 
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    make_truncated_value_warning(session, DRIZZLE_ERROR::WARN_LEVEL_WARN,
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                                 str, length, ts_type,  NULL);
 
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  return ts_type;
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}
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bool
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str_to_time_with_warn(const char *str, uint32_t length, DRIZZLE_TIME *l_time)
 
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str_to_time_with_warn(Session *session, const char *str, uint32_t length, type::Time *l_time)
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{
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  int warning;
153
 
  bool ret_val= str_to_time(str, length, l_time, &warning);
 
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  bool ret_val= l_time->store(str, length, warning, type::DRIZZLE_TIMESTAMP_TIME);
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  if (ret_val || warning)
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    make_truncated_value_warning(current_session, DRIZZLE_ERROR::WARN_LEVEL_WARN,
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                                 str, length, DRIZZLE_TIMESTAMP_TIME, NULL);
 
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    make_truncated_value_warning(session, DRIZZLE_ERROR::WARN_LEVEL_WARN,
 
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                                 str, length, type::DRIZZLE_TIMESTAMP_TIME, NULL);
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  return ret_val;
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}
159
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160
160
 
161
 
void localtime_to_TIME(DRIZZLE_TIME *to, struct tm *from)
162
 
{
163
 
  to->neg=0;
164
 
  to->second_part=0;
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  to->year=     (int) ((from->tm_year+1900) % 10000);
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  to->month=    (int) from->tm_mon+1;
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  to->day=      (int) from->tm_mday;
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  to->hour=     (int) from->tm_hour;
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  to->minute=   (int) from->tm_min;
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  to->second=   (int) from->tm_sec;
171
 
}
172
 
 
173
 
void make_date(const DRIZZLE_TIME *l_time, String *str)
174
 
{
175
 
  str->alloc(MAX_DATE_STRING_REP_LENGTH);
176
 
  uint32_t length= (uint32_t) my_date_to_str(l_time, str->c_ptr());
177
 
  str->length(length);
178
 
  str->set_charset(&my_charset_bin);
179
 
}
180
 
 
181
 
 
182
 
void make_datetime(const DRIZZLE_TIME *l_time, String *str)
183
 
{
184
 
  str->alloc(MAX_DATE_STRING_REP_LENGTH);
185
 
  uint32_t length= (uint32_t) my_datetime_to_str(l_time, str->c_ptr());
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  str->length(length);
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  str->set_charset(&my_charset_bin);
188
 
}
189
 
 
190
 
 
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void make_truncated_value_warning(Session *session, 
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                                  DRIZZLE_ERROR::enum_warning_level level,
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                                  const char *str_val,
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                                                          uint32_t str_length,
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                                  enum enum_drizzle_timestamp_type time_type,
 
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                                  type::timestamp_t time_type,
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                                  const char *field_name)
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{
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  char warn_buff[DRIZZLE_ERRMSG_SIZE];
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  str[str_length]= 0;               // Ensure we have end 0 for snprintf
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  switch (time_type) {
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    case DRIZZLE_TIMESTAMP_DATE:
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      type_str= "date";
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      break;
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    case DRIZZLE_TIMESTAMP_TIME:
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      type_str= "time";
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      break;
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    case DRIZZLE_TIMESTAMP_DATETIME:  // FALLTHROUGH
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    default:
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      type_str= "datetime";
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      break;
 
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  case type::DRIZZLE_TIMESTAMP_DATE:
 
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    type_str= "date";
 
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    break;
 
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  case type::DRIZZLE_TIMESTAMP_TIME:
 
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    type_str= "time";
 
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    break;
 
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  case type::DRIZZLE_TIMESTAMP_DATETIME:  // FALLTHROUGH
 
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  default:
 
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    type_str= "datetime";
 
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    break;
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  }
 
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  if (field_name)
 
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  {
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    cs->cset->snprintf(cs, warn_buff, sizeof(warn_buff),
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                       ER(ER_TRUNCATED_WRONG_VALUE_FOR_FIELD),
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                       type_str, str.c_ptr(), field_name,
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                       (uint32_t) session->row_count);
 
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  }
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  else
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  {
225
 
    if (time_type > DRIZZLE_TIMESTAMP_ERROR)
 
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    if (time_type > type::DRIZZLE_TIMESTAMP_ERROR)
 
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    {
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      cs->cset->snprintf(cs, warn_buff, sizeof(warn_buff),
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                         ER(ER_TRUNCATED_WRONG_VALUE),
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                         type_str, str.c_ptr());
 
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    }
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    else
 
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    {
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      cs->cset->snprintf(cs, warn_buff, sizeof(warn_buff),
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                         ER(ER_WRONG_VALUE), type_str, str.c_ptr());
 
210
    }
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  }
233
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  push_warning(session, level,
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               ER_TRUNCATED_WRONG_VALUE, warn_buff);
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237
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238
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bool
239
 
calc_time_diff(DRIZZLE_TIME *l_time1, DRIZZLE_TIME *l_time2, int l_sign, int64_t *seconds_out,
 
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calc_time_diff(type::Time *l_time1, type::Time *l_time2, int l_sign, int64_t *seconds_out,
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               long *microseconds_out)
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{
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  long days;
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    the second argument should be TIMESTAMP_TIME also.
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    We should check it before calc_time_diff call.
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  */
251
 
  if (l_time1->time_type == DRIZZLE_TIMESTAMP_TIME)  // Time value
 
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  if (l_time1->time_type == type::DRIZZLE_TIMESTAMP_TIME)  // Time value
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    days= (long)l_time1->day - l_sign * (long)l_time2->day;
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  else
254
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  {
255
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    days= calc_daynr((uint32_t) l_time1->year,
256
 
                     (uint32_t) l_time1->month,
257
 
                     (uint32_t) l_time1->day);
258
 
    if (l_time2->time_type == DRIZZLE_TIMESTAMP_TIME)
 
235
                     (uint32_t) l_time1->month,
 
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                     (uint32_t) l_time1->day);
 
237
    if (l_time2->time_type == type::DRIZZLE_TIMESTAMP_TIME)
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      days-= l_sign * (long)l_time2->day;
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    else
261
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      days-= l_sign*calc_daynr((uint32_t) l_time2->year,
262
 
                               (uint32_t) l_time2->month,
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                               (uint32_t) l_time2->day);
 
241
                               (uint32_t) l_time2->month,
 
242
                               (uint32_t) l_time2->day);
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  }
265
244
 
266
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  microseconds= ((int64_t)days*86400L +
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                 (int64_t)(l_time1->hour*3600L +
268
 
                            l_time1->minute*60L +
269
 
                            l_time1->second) -
 
247
                           l_time1->minute*60L +
 
248
                           l_time1->second) -
270
249
                 l_sign*(int64_t)(l_time2->hour*3600L +
271
 
                                   l_time2->minute*60L +
272
 
                                   l_time2->second)) * 1000000L +
273
 
                (int64_t)l_time1->second_part -
274
 
                l_sign*(int64_t)l_time2->second_part;
 
250
                                  l_time2->minute*60L +
 
251
                                  l_time2->second)) * 1000000L +
 
252
    (int64_t)l_time1->second_part -
 
253
    l_sign*(int64_t)l_time2->second_part;
275
254
 
276
255
  neg= 0;
277
256
  if (microseconds < 0)