annotate src/core/ngx_times.c @ 205:4a9a2b1dd6fa

nginx-0.0.1-2003-12-04-17:53:00 import
author Igor Sysoev <igor@sysoev.ru>
date Thu, 04 Dec 2003 14:53:00 +0000
parents 8dee38ea9117
children 6e0fef527732
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1
a8ff48d26cca nginx-0.0.1-2003-11-11-00:09:22 import
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2 #include <ngx_config.h>
a8ff48d26cca nginx-0.0.1-2003-11-11-00:09:22 import
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3 #include <ngx_core.h>
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4
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5
205
4a9a2b1dd6fa nginx-0.0.1-2003-12-04-17:53:00 import
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6 time_t ngx_cached_time;
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7 ngx_epoch_msec_t ngx_elapsed_msec;
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8 ngx_epoch_msec_t ngx_start_msec;
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9
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10 ngx_tm_t ngx_cached_gmtime;
182
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11
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12 static char cached_err_log_time[] = "1970/09/28 12:00:00";
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13 ngx_str_t ngx_cached_err_log_time;
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14
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a8ff48d26cca nginx-0.0.1-2003-11-11-00:09:22 import
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15 static char cached_http_time[] = "Mon, 28 Sep 1970 06:00:00 GMT";
a8ff48d26cca nginx-0.0.1-2003-11-11-00:09:22 import
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16 ngx_str_t ngx_cached_http_time;
a8ff48d26cca nginx-0.0.1-2003-11-11-00:09:22 import
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17
a8ff48d26cca nginx-0.0.1-2003-11-11-00:09:22 import
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18 static char cached_http_log_time[] = "28/Sep/1970:12:00:00";
a8ff48d26cca nginx-0.0.1-2003-11-11-00:09:22 import
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19 ngx_str_t ngx_cached_http_log_time;
a8ff48d26cca nginx-0.0.1-2003-11-11-00:09:22 import
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21
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22 static char *week[] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fir", "Sat" };
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23 static char *months[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun",
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
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24 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
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25
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26
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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27 void ngx_time_init()
182
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28 {
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29 struct timeval tv;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
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30
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31 ngx_memzero(&ngx_cached_gmtime, sizeof(ngx_tm_t));
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32 #ifdef ngx_tm_zone
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33 ngx_cached_gmtime.ngx_tm_zone = "GMT";
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34 #endif
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35
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36 ngx_cached_err_log_time.data = cached_err_log_time;
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37 ngx_cached_http_time.data = cached_http_time;
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38 ngx_cached_http_log_time.data = cached_http_log_time;
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39
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
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40 ngx_gettimeofday(&tv);
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
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41 ngx_cached_time = tv.tv_sec;
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42 ngx_start_msec = tv.tv_sec * 1000 + tv.tv_usec / 1000;
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43 ngx_elapsed_msec = 0;
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44
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45 ngx_time_update();
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
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46 }
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47
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
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48
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a8ff48d26cca nginx-0.0.1-2003-11-11-00:09:22 import
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49 void ngx_time_update()
a8ff48d26cca nginx-0.0.1-2003-11-11-00:09:22 import
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50 {
182
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51 ngx_tm_t tm;
178
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52
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53 ngx_gmtime(ngx_cached_time, &ngx_cached_gmtime);
181
811bdd2af794 nginx-0.0.1-2003-11-12-20:25:12 import
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54
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55 ngx_cached_http_time.len = ngx_snprintf(ngx_cached_http_time.data,
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
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56 sizeof("Mon, 28 Sep 1970 06:00:00 GMT"),
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
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57 "%s, %02d %s %4d %02d:%02d:%02d GMT",
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
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58 week[ngx_cached_gmtime.ngx_tm_wday],
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
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59 ngx_cached_gmtime.ngx_tm_mday,
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60 months[ngx_cached_gmtime.ngx_tm_mon - 1],
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61 ngx_cached_gmtime.ngx_tm_year,
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62 ngx_cached_gmtime.ngx_tm_hour,
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63 ngx_cached_gmtime.ngx_tm_min,
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64 ngx_cached_gmtime.ngx_tm_sec);
178
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65
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66 ngx_localtime(&tm);
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67
182
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68 ngx_cached_err_log_time.len = ngx_snprintf(ngx_cached_err_log_time.data,
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
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69 sizeof("1970/09/28 12:00:00"),
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
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70 "%4d/%02d/%02d %02d:%02d:%02d",
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
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71 tm.ngx_tm_year, tm.ngx_tm_mon,
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72 tm.ngx_tm_mday, tm.ngx_tm_hour,
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
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73 tm.ngx_tm_min, tm.ngx_tm_sec);
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
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74
178
a8ff48d26cca nginx-0.0.1-2003-11-11-00:09:22 import
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75 ngx_cached_http_log_time.len = ngx_snprintf(ngx_cached_http_log_time.data,
a8ff48d26cca nginx-0.0.1-2003-11-11-00:09:22 import
Igor Sysoev <igor@sysoev.ru>
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76 sizeof("28/Sep/1970:12:00:00"),
a8ff48d26cca nginx-0.0.1-2003-11-11-00:09:22 import
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77 "%02d/%s/%d:%02d:%02d:%02d",
a8ff48d26cca nginx-0.0.1-2003-11-11-00:09:22 import
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78 tm.ngx_tm_mday,
a8ff48d26cca nginx-0.0.1-2003-11-11-00:09:22 import
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79 months[tm.ngx_tm_mon - 1],
a8ff48d26cca nginx-0.0.1-2003-11-11-00:09:22 import
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80 tm.ngx_tm_year,
a8ff48d26cca nginx-0.0.1-2003-11-11-00:09:22 import
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81 tm.ngx_tm_hour,
a8ff48d26cca nginx-0.0.1-2003-11-11-00:09:22 import
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82 tm.ngx_tm_min,
a8ff48d26cca nginx-0.0.1-2003-11-11-00:09:22 import
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83 tm.ngx_tm_sec);
a8ff48d26cca nginx-0.0.1-2003-11-11-00:09:22 import
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84 }
182
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
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85
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
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86
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
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87 size_t ngx_http_time(char *buf, time_t t)
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
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88 {
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89 ngx_tm_t tm;
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90
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91 ngx_gmtime(t, &tm);
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92
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93 return ngx_snprintf(buf, sizeof("Mon, 28 Sep 1970 06:00:00 GMT"),
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94 "%s, %02d %s %4d %02d:%02d:%02d GMT",
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95 week[tm.ngx_tm_wday],
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
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96 tm.ngx_tm_mday,
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
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97 months[tm.ngx_tm_mon - 1],
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
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diff changeset
98 tm.ngx_tm_year,
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
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99 tm.ngx_tm_hour,
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
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parents: 181
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100 tm.ngx_tm_min,
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
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101 tm.ngx_tm_sec);
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
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102 }
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
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103
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
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104
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
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105 void ngx_gmtime(time_t t, ngx_tm_t *tp)
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
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106 {
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
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107 int sec, min, hour, mday, mon, year, wday, yday, days;
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108
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
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109 days = t / 86400;
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110
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
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111 /* Jaunary 1, 1970 was Thursday */
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
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112 wday = (4 + days) % 7;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
113
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
114 t %= 86400;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
115 hour = t / 3600;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
116 t %= 3600;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
117 min = t / 60;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
118 sec = t % 60;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
119
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
120 /* the algorithm based on Gauss's formula */
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
121
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
122 days = days - (31 + 28) + 719527;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
123
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
124 year = days * 400 / (365 * 400 + 100 - 4 + 1);
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
125 yday = days - (365 * year + year / 4 - year / 100 + year / 400);
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
126
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
127 mon = (yday + 31) * 12 / 367;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
128 mday = yday - (mon * 367 / 12 - 31);
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
129
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
130 mon += 2;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
131
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
132 if (yday >= 306) {
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
133 yday -= 306;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
134 year++;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
135 mon -= 12;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
136
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
137 if (mday == 0) {
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
138 /* Jaunary 31 */
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
139 mon = 1;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
140 mday = 31;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
141
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
142 } else if (mon == 2) {
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
143
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
144 if ((year % 4 == 0) && (year % 100 || (year % 400 == 0))) {
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
145 if (mday > 29) {
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
146 mon = 3;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
147 mday -= 29;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
148 }
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
149
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
150 } else if (mday > 28) {
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
151 mon = 3;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
152 mday -= 28;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
153 }
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
154 }
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
155
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
156 } else {
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
157 yday += 31 + 28;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
158
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
159 if ((year % 4 == 0) && (year % 100 || (year % 400 == 0))) {
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
160 yday++;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
161 }
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
162 }
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
163
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
164 tp->ngx_tm_sec = sec;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
165 tp->ngx_tm_min = min;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
166 tp->ngx_tm_hour = hour;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
167 tp->ngx_tm_mday = mday;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
168 tp->ngx_tm_mon = mon;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
169 tp->ngx_tm_year = year;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
170 tp->ngx_tm_wday = wday;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
171 }