src/monitor/stc-time.c

   1 /*
   2  * Copyright (c) 2016 Samsung Electronics Co., Ltd.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 #include <time.h>
  18 #include <stdbool.h>
  19
  20 #define SEC_IN_DAY 24 * 60 * 60
  21 #define SEC_IN_WEEK 7 * SEC_IN_DAY
  22
  23 time_t stc_time_get_day_start(time_t now)
  24 {
  25         struct tm curr;
  26         struct tm *res;
  27
  28         res = localtime_r(&now, &curr);
  29
  30         curr.tm_sec = 0;
  31         curr.tm_min = 0;
  32         curr.tm_hour = 0;
  33
  34         return mktime(&curr);
  35 }
  36
  37 time_t stc_time_get_week_start(time_t now)
  38 {
  39         struct tm curr;
  40         struct tm *res;
  41         int days;
  42
  43         res = localtime_r(&now, &curr);
  44
  45         curr.tm_sec = 0;
  46         curr.tm_min = 0;
  47         curr.tm_hour = 0;
  48
  49         if (curr.tm_wday > 1)
  50                 days = curr.tm_wday - 1;
  51         else
  52                 days = 1 - curr.tm_wday;
  53
  54         return (mktime(&curr) - (days * SEC_IN_DAY));
  55 }
  56
  57 time_t stc_time_get_month_start(time_t now, int month_start_date)
  58 {
  59         struct tm *curr;
  60         bool is_leap_year;
  61
  62         curr = localtime(&now);
  63
  64         curr->tm_sec = 0;
  65         curr->tm_min = 0;
  66         curr->tm_hour = 0;
  67
  68         if (curr->tm_mday < month_start_date) {
  69                 curr->tm_mon--;
  70                 if (curr->tm_mon < 0) {
  71                         curr->tm_mon = 11;
  72                         curr->tm_year--;
  73                 }
  74         }
  75
  76         is_leap_year = ((curr->tm_year + 1900) % 4 ? 0 : 1);
  77         curr->tm_mday = month_start_date;
  78
  79         switch (month_start_date) {
  80         case 29:
  81         case 30:
  82                 if (curr->tm_mon == 1 && !is_leap_year)
  83                         curr->tm_mday = 28;
  84
  85                 else if (curr->tm_mon == 1 && is_leap_year)
  86                         curr->tm_mday = 29;
  87
  88                 break;
  89         case 31:
  90                 if (curr->tm_mon == 1 && !is_leap_year)
  91                         curr->tm_mday = 28;
  92
  93                 else if (curr->tm_mon == 1 && is_leap_year)
  94                         curr->tm_mday = 29;
  95
  96                 else if (curr->tm_mon == 3 || curr->tm_mon == 5 ||
  97                          curr->tm_mon == 8 || curr->tm_mon == 10)
  98                         curr->tm_mday = 30;
  99
 100                 break;
 101         default:
 102                 ;//Do Nothing
 103         };
 104
 105         return mktime(curr);
 106 }