annotate src/core/ngx_times.c @ 207:6e0fef527732

nginx-0.0.1-2003-12-05-20:07:27 import
author Igor Sysoev <igor@sysoev.ru>
date Fri, 05 Dec 2003 17:07:27 +0000
parents 4a9a2b1dd6fa
children 0b67be7d4489
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>
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3 #include <ngx_core.h>
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5
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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_old_elapsed_msec;
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9 ngx_epoch_msec_t ngx_start_msec;
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11 ngx_tm_t ngx_cached_gmtime;
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12
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13 static char cached_err_log_time[] = "1970/09/28 12:00:00";
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14 ngx_str_t ngx_cached_err_log_time;
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15
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16 static char cached_http_time[] = "Mon, 28 Sep 1970 06:00:00 GMT";
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17 ngx_str_t ngx_cached_http_time;
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19 static char cached_http_log_time[] = "28/Sep/1970:12:00:00";
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20 ngx_str_t ngx_cached_http_log_time;
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23 static char *week[] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fir", "Sat" };
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24 static char *months[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun",
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25 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
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27
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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28 void ngx_time_init()
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29 {
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30 struct timeval tv;
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31
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32 ngx_memzero(&ngx_cached_gmtime, sizeof(ngx_tm_t));
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33 #ifdef ngx_tm_zone
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34 ngx_cached_gmtime.ngx_tm_zone = "GMT";
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35 #endif
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36
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37 ngx_cached_err_log_time.data = cached_err_log_time;
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38 ngx_cached_http_time.data = cached_http_time;
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39 ngx_cached_http_log_time.data = cached_http_log_time;
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41 ngx_gettimeofday(&tv);
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42 ngx_cached_time = tv.tv_sec;
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43 ngx_start_msec = tv.tv_sec * 1000 + tv.tv_usec / 1000;
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44 ngx_old_elapsed_msec = 0;
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45 ngx_elapsed_msec = 0;
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46
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47 ngx_time_update();
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48 }
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49
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50
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51 void ngx_time_update()
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52 {
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53 ngx_tm_t tm;
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54
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55 ngx_gmtime(ngx_cached_time, &ngx_cached_gmtime);
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56
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57 ngx_cached_http_time.len = ngx_snprintf(ngx_cached_http_time.data,
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58 sizeof("Mon, 28 Sep 1970 06:00:00 GMT"),
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59 "%s, %02d %s %4d %02d:%02d:%02d GMT",
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60 week[ngx_cached_gmtime.ngx_tm_wday],
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61 ngx_cached_gmtime.ngx_tm_mday,
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62 months[ngx_cached_gmtime.ngx_tm_mon - 1],
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63 ngx_cached_gmtime.ngx_tm_year,
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64 ngx_cached_gmtime.ngx_tm_hour,
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65 ngx_cached_gmtime.ngx_tm_min,
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66 ngx_cached_gmtime.ngx_tm_sec);
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67
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68 ngx_localtime(&tm);
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69
182
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70 ngx_cached_err_log_time.len = ngx_snprintf(ngx_cached_err_log_time.data,
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71 sizeof("1970/09/28 12:00:00"),
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72 "%4d/%02d/%02d %02d:%02d:%02d",
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73 tm.ngx_tm_year, tm.ngx_tm_mon,
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74 tm.ngx_tm_mday, tm.ngx_tm_hour,
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75 tm.ngx_tm_min, tm.ngx_tm_sec);
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76
178
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77 ngx_cached_http_log_time.len = ngx_snprintf(ngx_cached_http_log_time.data,
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78 sizeof("28/Sep/1970:12:00:00"),
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79 "%02d/%s/%d:%02d:%02d:%02d",
a8ff48d26cca nginx-0.0.1-2003-11-11-00:09:22 import
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80 tm.ngx_tm_mday,
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81 months[tm.ngx_tm_mon - 1],
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82 tm.ngx_tm_year,
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83 tm.ngx_tm_hour,
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84 tm.ngx_tm_min,
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85 tm.ngx_tm_sec);
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86 }
182
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87
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88
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89 size_t ngx_http_time(char *buf, time_t t)
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90 {
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91 ngx_tm_t tm;
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92
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93 ngx_gmtime(t, &tm);
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94
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95 return ngx_snprintf(buf, sizeof("Mon, 28 Sep 1970 06:00:00 GMT"),
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96 "%s, %02d %s %4d %02d:%02d:%02d GMT",
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97 week[tm.ngx_tm_wday],
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98 tm.ngx_tm_mday,
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99 months[tm.ngx_tm_mon - 1],
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100 tm.ngx_tm_year,
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101 tm.ngx_tm_hour,
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102 tm.ngx_tm_min,
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103 tm.ngx_tm_sec);
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104 }
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105
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106
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107 void ngx_gmtime(time_t t, ngx_tm_t *tp)
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108 {
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109 int sec, min, hour, mday, mon, year, wday, yday, days;
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110
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111 days = t / 86400;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
112
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
113 /* Jaunary 1, 1970 was Thursday */
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
114 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
115
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
116 t %= 86400;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
117 hour = t / 3600;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
118 t %= 3600;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
119 min = t / 60;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
120 sec = t % 60;
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 /* 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
123
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
124 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
125
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
126 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
127 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
128
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
129 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
130 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
131
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
132 mon += 2;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
133
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
134 if (yday >= 306) {
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
135 yday -= 306;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
136 year++;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
137 mon -= 12;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
138
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
139 if (mday == 0) {
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
140 /* Jaunary 31 */
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
141 mon = 1;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
142 mday = 31;
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 } 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
145
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
146 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
147 if (mday > 29) {
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
148 mon = 3;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
149 mday -= 29;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
150 }
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
151
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
152 } 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
153 mon = 3;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
154 mday -= 28;
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 }
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
157
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
158 } else {
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
159 yday += 31 + 28;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
160
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
161 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
162 yday++;
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 }
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
165
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_sec = sec;
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_min = min;
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_hour = hour;
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_mday = mday;
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_mon = mon;
3c49eaf3f522 nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 181
diff changeset
171 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
172 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
173 }