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comparison src/core/ngx_times.c @ 182:3c49eaf3f522

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nginx-0.0.1-2003-11-13-09:14:05 import
author Igor Sysoev <igor@sysoev.ru>
date Thu, 13 Nov 2003 06:14:05 +0000
parents 811bdd2af794
children 02a715e85df1
comparison
equal deleted inserted replaced
181:811bdd2af794 182:3c49eaf3f522
2 #include <ngx_config.h> 2 #include <ngx_config.h>
3 #include <ngx_core.h> 3 #include <ngx_core.h>
4 4
5 5
6 time_t ngx_cached_time; 6 time_t ngx_cached_time;
7
8 ngx_tm_t ngx_cached_gmtime;
9
10 static char cached_err_log_time[] = "1970/09/28 12:00:00";
11 ngx_str_t ngx_cached_err_log_time;
7 12
8 static char cached_http_time[] = "Mon, 28 Sep 1970 06:00:00 GMT"; 13 static char cached_http_time[] = "Mon, 28 Sep 1970 06:00:00 GMT";
9 ngx_str_t ngx_cached_http_time; 14 ngx_str_t ngx_cached_http_time;
10 15
11 static char cached_http_log_time[] = "28/Sep/1970:12:00:00"; 16 static char cached_http_log_time[] = "28/Sep/1970:12:00:00";
12 ngx_str_t ngx_cached_http_log_time; 17 ngx_str_t ngx_cached_http_log_time;
13 18
14 19
20 static char *week[] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fir", "Sat" };
21 static char *months[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun",
22 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
23
24
25 void ngx_init_time()
26 {
27 struct timeval tv;
28
29 ngx_memzero(&ngx_cached_gmtime, sizeof(ngx_tm_t));
30 #ifdef ngx_tm_zone
31 ngx_cached_gmtime.ngx_tm_zone = "GMT";
32 #endif
33
34 ngx_cached_err_log_time.data = cached_err_log_time;
35 ngx_cached_http_time.data = cached_http_time;
36 ngx_cached_http_log_time.data = cached_http_log_time;
37
38 ngx_gettimeofday(&tv);
39 ngx_cached_time = tv.tv_sec;
40 ngx_time_update();
41 }
42
43
15 time_t ngx_time() 44 time_t ngx_time()
16 { 45 {
17 return ngx_cached_time; 46 return ngx_cached_time;
18 } 47 }
19 48
20 49
21 /* TODO:
22 * cache ngx_tm_t
23 * write own gmtime()
24 * remove strftime()
25 * we can remove localtime_r
26 */
27
28 void ngx_time_update() 50 void ngx_time_update()
29 { 51 {
30 ngx_tm_t *tp, tm; 52 ngx_tm_t tm;
31 static char *months[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun",
32 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
33 53
34 /* STUB: need to move to ngx_init_time() */ 54 ngx_gmtime(ngx_cached_time, &ngx_cached_gmtime);
35 ngx_cached_http_time.data = cached_http_time;
36 ngx_cached_http_log_time.data = cached_http_log_time;
37 55
38 #if 0 56 ngx_cached_http_time.len = ngx_snprintf(ngx_cached_http_time.data,
39 57 sizeof("Mon, 28 Sep 1970 06:00:00 GMT"),
40 days = sec / 86400; 58 "%s, %02d %s %4d %02d:%02d:%02d GMT",
41 days = days - 31 - 28 + 719527; 59 week[ngx_cached_gmtime.ngx_tm_wday],
42 60 ngx_cached_gmtime.ngx_tm_mday,
43 year = days * 400 / (365 * 400 + 100 - 4 + 1); 61 months[ngx_cached_gmtime.ngx_tm_mon - 1],
44 yday = days - (365 * year + year / 4 - year / 100 + year / 400); 62 ngx_cached_gmtime.ngx_tm_year,
45 63 ngx_cached_gmtime.ngx_tm_hour,
46 month = (yday + 30) * 12 / 367; 64 ngx_cached_gmtime.ngx_tm_min,
47 mday = yday - (month * 367 / 12 - 31); 65 ngx_cached_gmtime.ngx_tm_sec);
48
49 if (++month > 11) {
50 month -= 12;
51 year++;
52 }
53
54 #endif
55
56 tp = gmtime(&ngx_cached_time);
57
58 ngx_cached_http_time.len = strftime(ngx_cached_http_time.data,
59 sizeof("Mon, 28 Sep 1970 06:00:00 GMT"),
60 "%a, %d %b %Y %H:%M:%S GMT", tp);
61
62 66
63 ngx_localtime(&tm); 67 ngx_localtime(&tm);
68
69 ngx_cached_err_log_time.len = ngx_snprintf(ngx_cached_err_log_time.data,
70 sizeof("1970/09/28 12:00:00"),
71 "%4d/%02d/%02d %02d:%02d:%02d",
72 tm.ngx_tm_year, tm.ngx_tm_mon,
73 tm.ngx_tm_mday, tm.ngx_tm_hour,
74 tm.ngx_tm_min, tm.ngx_tm_sec);
64 75
65 ngx_cached_http_log_time.len = ngx_snprintf(ngx_cached_http_log_time.data, 76 ngx_cached_http_log_time.len = ngx_snprintf(ngx_cached_http_log_time.data,
66 sizeof("28/Sep/1970:12:00:00"), 77 sizeof("28/Sep/1970:12:00:00"),
67 "%02d/%s/%d:%02d:%02d:%02d", 78 "%02d/%s/%d:%02d:%02d:%02d",
68 tm.ngx_tm_mday, 79 tm.ngx_tm_mday,
70 tm.ngx_tm_year, 81 tm.ngx_tm_year,
71 tm.ngx_tm_hour, 82 tm.ngx_tm_hour,
72 tm.ngx_tm_min, 83 tm.ngx_tm_min,
73 tm.ngx_tm_sec); 84 tm.ngx_tm_sec);
74 } 85 }
86
87
88 size_t ngx_http_time(char *buf, time_t t)
89 {
90 ngx_tm_t tm;
91
92 ngx_gmtime(t, &tm);
93
94 return ngx_snprintf(buf, sizeof("Mon, 28 Sep 1970 06:00:00 GMT"),
95 "%s, %02d %s %4d %02d:%02d:%02d GMT",
96 week[tm.ngx_tm_wday],
97 tm.ngx_tm_mday,
98 months[tm.ngx_tm_mon - 1],
99 tm.ngx_tm_year,
100 tm.ngx_tm_hour,
101 tm.ngx_tm_min,
102 tm.ngx_tm_sec);
103 }
104
105
106 void ngx_gmtime(time_t t, ngx_tm_t *tp)
107 {
108 int sec, min, hour, mday, mon, year, wday, yday, days;
109
110 days = t / 86400;
111
112 /* Jaunary 1, 1970 was Thursday */
113 wday = (4 + days) % 7;
114
115 t %= 86400;
116 hour = t / 3600;
117 t %= 3600;
118 min = t / 60;
119 sec = t % 60;
120
121 /* the algorithm based on Gauss's formula */
122
123 days = days - (31 + 28) + 719527;
124
125 year = days * 400 / (365 * 400 + 100 - 4 + 1);
126 yday = days - (365 * year + year / 4 - year / 100 + year / 400);
127
128 mon = (yday + 31) * 12 / 367;
129 mday = yday - (mon * 367 / 12 - 31);
130
131 mon += 2;
132
133 if (yday >= 306) {
134 yday -= 306;
135 year++;
136 mon -= 12;
137
138 if (mday == 0) {
139 /* Jaunary 31 */
140 mon = 1;
141 mday = 31;
142
143 } else if (mon == 2) {
144
145 if ((year % 4 == 0) && (year % 100 || (year % 400 == 0))) {
146 if (mday > 29) {
147 mon = 3;
148 mday -= 29;
149 }
150
151 } else if (mday > 28) {
152 mon = 3;
153 mday -= 28;
154 }
155 }
156
157 } else {
158 yday += 31 + 28;
159
160 if ((year % 4 == 0) && (year % 100 || (year % 400 == 0))) {
161 yday++;
162 }
163 }
164
165 tp->ngx_tm_sec = sec;
166 tp->ngx_tm_min = min;
167 tp->ngx_tm_hour = hour;
168 tp->ngx_tm_mday = mday;
169 tp->ngx_tm_mon = mon;
170 tp->ngx_tm_year = year;
171 tp->ngx_tm_wday = wday;
172 }