1 | #include "schedule.h" |
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2 | #include "list.h" |
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3 | #include <sys/types.h> |
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4 | #include <stdbool.h> |
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5 | #include <stdint.h> |
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6 | #include <stdlib.h> |
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7 | #include <syslog.h> |
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8 | #include <time.h> |
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9 | #include <ev.h> |
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10 | |
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11 | struct og_schedule *current_schedule = NULL; |
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12 | static LIST_HEAD(schedule_list); |
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13 | |
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14 | static void og_schedule_add(struct og_schedule *new) |
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15 | { |
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16 | struct og_schedule *schedule, *next; |
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17 | time_t now; |
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18 | |
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19 | now = time(NULL); |
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20 | if (new->seconds < now) { |
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21 | free(new); |
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22 | return; |
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23 | } |
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24 | list_for_each_entry_safe(schedule, next, &schedule_list, list) { |
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25 | if (new->seconds < schedule->seconds) { |
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26 | list_add_tail(&new->list, &schedule->list); |
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27 | return; |
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28 | } |
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29 | } |
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30 | list_add_tail(&new->list, &schedule_list); |
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31 | } |
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32 | |
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33 | /* Returns the days in a month from the weekday. */ |
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34 | static void get_days_from_weekday(struct tm *tm, int wday, int *days, int *j) |
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35 | { |
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36 | int i, mday = 0; |
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37 | |
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38 | tm->tm_mday = 1; |
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39 | |
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40 | //Shift week to start on Sunday instead of Monday |
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41 | if (wday == 6) |
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42 | wday = 0; |
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43 | else |
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44 | wday++; |
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45 | |
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46 | /* A bit bruteforce, but simple. */ |
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47 | for (i = 0; i <= 30; i++) { |
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48 | mktime(tm); |
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49 | /* Not this weekday, skip. */ |
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50 | if (tm->tm_wday != wday) { |
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51 | tm->tm_mday++; |
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52 | continue; |
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53 | } |
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54 | /* Not interested in next month. */ |
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55 | if (tm->tm_mday < mday) |
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56 | break; |
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57 | |
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58 | /* Found a matching. */ |
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59 | mday = tm->tm_mday; |
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60 | days[(*j)++] = tm->tm_mday; |
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61 | tm->tm_mday++; |
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62 | } |
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63 | } |
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64 | |
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65 | /* Returns the days in the given week. */ |
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66 | static void get_days_from_week(struct tm *tm, int week, int *days, int *k) |
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67 | { |
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68 | int i, j, week_counter = 0; |
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69 | bool week_over = false; |
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70 | |
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71 | tm->tm_mday = 1; |
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72 | |
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73 | /* Remaining days of this month. */ |
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74 | for (i = 0; i <= 30; i++) { |
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75 | mktime(tm); |
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76 | |
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77 | /* Last day of this week? */ |
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78 | if (tm->tm_wday == 6) |
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79 | week_over = true; |
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80 | |
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81 | /* Not the week we are searching for. */ |
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82 | if (week != week_counter) { |
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83 | tm->tm_mday++; |
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84 | if (week_over) { |
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85 | week_counter++; |
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86 | week_over = false; |
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87 | } |
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88 | continue; |
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89 | } |
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90 | |
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91 | /* Found matching. */ |
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92 | for (j = tm->tm_wday; j <= 6; j++) { |
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93 | days[(*k)++] = tm->tm_mday++; |
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94 | mktime(tm); |
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95 | } |
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96 | break; |
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97 | } |
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98 | } |
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99 | |
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100 | static int monthdays[12] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }; |
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101 | |
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102 | static int last_month_day(struct tm *tm) |
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103 | { |
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104 | /* Leap year? Adjust it. */ |
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105 | if (tm->tm_mon == 1) { |
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106 | tm->tm_mday = 29; |
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107 | mktime(tm); |
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108 | if (tm->tm_mday == 29) |
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109 | return 29; |
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110 | |
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111 | tm->tm_mon = 1; |
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112 | } |
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113 | |
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114 | return monthdays[tm->tm_mon]; |
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115 | } |
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116 | |
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117 | /* Returns the days in the given week. */ |
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118 | static void get_last_week(struct tm *tm, int *days, int *j) |
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119 | { |
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120 | int i, last_day; |
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121 | |
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122 | last_day = last_month_day(tm); |
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123 | tm->tm_mday = last_day; |
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124 | |
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125 | for (i = last_day; i >= last_day - 6; i--) { |
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126 | mktime(tm); |
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127 | |
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128 | days[(*j)++] = tm->tm_mday; |
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129 | |
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130 | |
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131 | syslog(LOG_ERR, "TM_WDAY: %d", tm->tm_wday);//XXX |
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132 | syslog(LOG_ERR, "TM_MDAY: %d", tm->tm_mday);//XXX |
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133 | /* Last day of this week? */ |
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134 | if (tm->tm_wday == 1) { |
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135 | syslog(LOG_ERR, "break week");//XXX |
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136 | break; |
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137 | } |
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138 | |
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139 | tm->tm_mday--; |
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140 | } |
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141 | } |
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142 | |
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143 | static void og_parse_years(uint16_t years_mask, int years[]) |
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144 | { |
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145 | int i, j = 0; |
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146 | |
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147 | for (i = 0; i < 16; i++) { |
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148 | if ((1 << i) & years_mask) |
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149 | years[j++] = 2010 + i - 1900; |
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150 | } |
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151 | } |
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152 | |
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153 | static void og_parse_months(uint16_t months_mask, int months[]) |
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154 | { |
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155 | int i, j = 0; |
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156 | |
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157 | for (i = 0; i < 12; i++) { |
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158 | if ((1 << i) & months_mask) |
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159 | months[j++] = i + 1; |
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160 | } |
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161 | } |
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162 | |
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163 | static void og_parse_days(uint32_t days_mask, int *days) |
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164 | { |
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165 | int i, j = 0; |
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166 | |
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167 | for (i = 0; i < 31; i++) { |
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168 | if ((1 << i) & days_mask) |
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169 | days[j++] = i + 1; |
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170 | } |
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171 | } |
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172 | |
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173 | static void og_parse_hours(uint16_t hours_mask, uint8_t am_pm, int hours[]) |
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174 | { |
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175 | int pm = 12 * am_pm; |
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176 | int i, j = 0; |
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177 | |
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178 | for (i = 0; i < 12; i++) { |
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179 | if ((1 << i) & hours_mask) |
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180 | hours[j++] = i + pm + 1; |
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181 | } |
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182 | } |
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183 | |
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184 | static void og_schedule_remove_duplicates() |
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185 | { |
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186 | struct og_schedule *schedule, *next, *prev = NULL; |
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187 | |
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188 | list_for_each_entry_safe(schedule, next, &schedule_list, list) { |
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189 | if (!prev) { |
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190 | prev = schedule; |
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191 | continue; |
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192 | } |
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193 | if (prev->seconds == schedule->seconds && |
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194 | prev->task_id == schedule->task_id) { |
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195 | list_del(&prev->list); |
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196 | free(prev); |
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197 | } |
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198 | prev = schedule; |
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199 | } |
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200 | } |
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201 | |
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202 | void og_schedule_create(unsigned int schedule_id, unsigned int task_id, |
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203 | struct og_schedule_time *time) |
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204 | { |
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205 | struct og_schedule *schedule; |
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206 | int months[12] = {}; |
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207 | int years[12] = {}; |
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208 | int hours[12] = {}; |
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209 | int days[31] = {}; |
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210 | struct tm tm = {}; |
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211 | int i, j, k, l = 0; |
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212 | int minutes; |
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213 | |
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214 | og_parse_years(time->years, years); |
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215 | og_parse_months(time->months, months); |
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216 | og_parse_days(time->days, days); |
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217 | og_parse_hours(time->hours, time->am_pm, hours); |
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218 | minutes = time->minutes; |
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219 | |
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220 | for (i = 0; years[i] != 0 && i < 12; i++) { |
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221 | for (j = 0; months[j] != 0 && j < 12; j++) { |
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222 | memset(&tm, 0, sizeof(tm)); |
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223 | tm.tm_year = years[i]; |
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224 | tm.tm_mon = months[j] - 1; |
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225 | if (time->week_days) { |
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226 | for (int wday = 0; wday < 7; wday++) { |
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227 | if ((1 << wday) & time->week_days) { |
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228 | int specific_month_days[5] = {}; |
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229 | int n_month_days = 0; |
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230 | get_days_from_weekday(&tm, |
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231 | wday, |
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232 | specific_month_days, |
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233 | &n_month_days); |
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234 | |
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235 | for (k = 0; specific_month_days[k] != 0 && k < n_month_days; k++) { |
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236 | for (l = 0; hours[l] != 0 && l < 31; l++) { |
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237 | schedule = (struct og_schedule *) |
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238 | calloc(1, sizeof(struct og_schedule)); |
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239 | if (!schedule) |
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240 | return; |
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241 | |
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242 | memset(&tm, 0, sizeof(tm)); |
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243 | tm.tm_year = years[i]; |
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244 | tm.tm_mon = months[j] - 1; |
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245 | tm.tm_mday = specific_month_days[k]; |
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246 | tm.tm_hour = hours[l] - 1; |
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247 | tm.tm_min = minutes; |
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248 | |
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249 | schedule->seconds = mktime(&tm); |
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250 | schedule->task_id = task_id; |
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251 | schedule->schedule_id = schedule_id; |
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252 | og_schedule_add(schedule); |
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253 | } |
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254 | } |
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255 | } |
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256 | } |
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257 | } |
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258 | |
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259 | if (time->weeks) { |
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260 | for (int week = 0; week < 5; week++) { |
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261 | if ((1 << week) & time->weeks) { |
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262 | int specific_month_days[7] = {}; |
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263 | int n_month_days = 0; |
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264 | |
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265 | if (week == 5) |
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266 | get_last_week(&tm, |
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267 | specific_month_days, |
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268 | &n_month_days); |
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269 | else |
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270 | get_days_from_week(&tm, |
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271 | week, |
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272 | specific_month_days, |
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273 | &n_month_days); |
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274 | |
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275 | for (k = 0; specific_month_days[k] != 0 && k < n_month_days; k++) { |
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276 | for (l = 0; hours[l] != 0 && l < 31; l++) { |
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277 | schedule = (struct og_schedule *) |
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278 | calloc(1, sizeof(struct og_schedule)); |
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279 | if (!schedule) |
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280 | return; |
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281 | |
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282 | memset(&tm, 0, sizeof(tm)); |
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283 | tm.tm_year = years[i]; |
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284 | tm.tm_mon = months[j] - 1; |
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285 | tm.tm_mday = specific_month_days[k]; |
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286 | tm.tm_hour = hours[l] - 1; |
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287 | tm.tm_min = minutes; |
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288 | |
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289 | schedule->seconds = mktime(&tm); |
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290 | schedule->task_id = task_id; |
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291 | schedule->schedule_id = schedule_id; |
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292 | og_schedule_add(schedule); |
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293 | } |
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294 | } |
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295 | } |
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296 | } |
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297 | } |
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298 | |
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299 | if (time->days) { |
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300 | for (k = 0; days[k] != 0 && k < 31; k++) { |
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301 | for (l = 0; hours[l] != 0 && l < 31; l++) { |
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302 | schedule = (struct og_schedule *) |
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303 | calloc(1, sizeof(struct og_schedule)); |
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304 | if (!schedule) |
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305 | return; |
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306 | |
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307 | memset(&tm, 0, sizeof(tm)); |
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308 | tm.tm_year = years[i]; |
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309 | tm.tm_mon = months[j] - 1; |
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310 | tm.tm_mday = days[k]; |
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311 | tm.tm_hour = hours[l] - 1; |
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312 | tm.tm_min = minutes; |
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313 | |
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314 | schedule->seconds = mktime(&tm); |
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315 | schedule->task_id = task_id; |
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316 | schedule->schedule_id = schedule_id; |
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317 | og_schedule_add(schedule); |
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318 | } |
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319 | } |
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320 | } |
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321 | } |
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322 | } |
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323 | |
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324 | og_schedule_remove_duplicates(); |
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325 | } |
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326 | |
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327 | void og_schedule_delete(struct ev_loop *loop, uint32_t schedule_id) |
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328 | { |
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329 | struct og_schedule *schedule, *next; |
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330 | |
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331 | list_for_each_entry_safe(schedule, next, &schedule_list, list) { |
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332 | if (schedule->schedule_id != schedule_id) |
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333 | continue; |
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334 | |
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335 | list_del(&schedule->list); |
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336 | if (current_schedule == schedule) { |
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337 | ev_timer_stop(loop, &schedule->timer); |
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338 | current_schedule = NULL; |
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339 | og_schedule_refresh(loop); |
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340 | } |
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341 | free(schedule); |
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342 | } |
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343 | } |
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344 | |
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345 | void og_schedule_update(struct ev_loop *loop, unsigned int schedule_id, |
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346 | unsigned int task_id, struct og_schedule_time *time) |
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347 | { |
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348 | og_schedule_delete(loop, schedule_id); |
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349 | og_schedule_create(schedule_id, task_id, time); |
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350 | } |
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351 | |
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352 | static void og_agent_timer_cb(struct ev_loop *loop, ev_timer *timer, int events) |
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353 | { |
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354 | struct og_schedule *current; |
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355 | |
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356 | current = container_of(timer, struct og_schedule, timer); |
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357 | og_dbi_schedule_task(current->task_id); |
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358 | |
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359 | ev_timer_stop(loop, timer); |
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360 | list_del(¤t->list); |
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361 | free(current); |
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362 | |
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363 | og_schedule_next(loop); |
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364 | } |
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365 | |
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366 | void og_schedule_next(struct ev_loop *loop) |
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367 | { |
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368 | struct og_schedule *schedule; |
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369 | time_t now, seconds; |
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370 | |
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371 | if (list_empty(&schedule_list)) { |
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372 | current_schedule = NULL; |
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373 | return; |
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374 | } |
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375 | |
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376 | schedule = list_first_entry(&schedule_list, struct og_schedule, list); |
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377 | now = time(NULL); |
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378 | if (schedule->seconds <= now) |
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379 | seconds = 0; |
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380 | else |
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381 | seconds = schedule->seconds - now; |
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382 | |
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383 | ev_timer_init(&schedule->timer, og_agent_timer_cb, seconds, 0.); |
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384 | ev_timer_start(loop, &schedule->timer); |
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385 | current_schedule = schedule; |
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386 | } |
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387 | |
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388 | void og_schedule_refresh(struct ev_loop *loop) |
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389 | { |
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390 | if (current_schedule) |
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391 | ev_timer_stop(loop, ¤t_schedule->timer); |
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392 | |
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393 | og_schedule_next(loop); |
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394 | } |
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