Mercurial > hg > nginx-quic
annotate src/core/ngx_times.c @ 3546:3a9fca8cbdfc
simplify binary little endian length processing
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Tue, 01 Jun 2010 17:04:56 +0000 |
parents | 72c3edbd4dc8 |
children | eae4a59ae59a |
rev | line source |
---|---|
441
da8c5707af39
nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents:
433
diff
changeset
|
1 |
da8c5707af39
nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents:
433
diff
changeset
|
2 /* |
444
42d11f017717
nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
Igor Sysoev <igor@sysoev.ru>
parents:
441
diff
changeset
|
3 * Copyright (C) Igor Sysoev |
441
da8c5707af39
nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents:
433
diff
changeset
|
4 */ |
da8c5707af39
nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents:
433
diff
changeset
|
5 |
178
a8ff48d26cca
nginx-0.0.1-2003-11-11-00:09:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
6 |
a8ff48d26cca
nginx-0.0.1-2003-11-11-00:09:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
7 #include <ngx_config.h> |
a8ff48d26cca
nginx-0.0.1-2003-11-11-00:09:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
8 #include <ngx_core.h> |
a8ff48d26cca
nginx-0.0.1-2003-11-11-00:09:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
9 |
a8ff48d26cca
nginx-0.0.1-2003-11-11-00:09:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
10 |
370
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
358
diff
changeset
|
11 /* |
563 | 12 * The time may be updated by signal handler or by several threads. |
13 * The time update operations are rare and require to hold the ngx_time_lock. | |
14 * The time read operations are frequent, so they are lock-free and get time | |
15 * values and strings from the current slot. Thus thread may get the corrupted | |
16 * values only if it is preempted while copying and then it is not scheduled | |
17 * to run more than NGX_TIME_SLOTS seconds. | |
370
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
358
diff
changeset
|
18 */ |
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
358
diff
changeset
|
19 |
563 | 20 #define NGX_TIME_SLOTS 64 |
370
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
358
diff
changeset
|
21 |
932
1b8111df8051
the initial slot is out of array
Igor Sysoev <igor@sysoev.ru>
parents:
891
diff
changeset
|
22 static ngx_uint_t slot; |
563 | 23 static ngx_atomic_t ngx_time_lock; |
370
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
358
diff
changeset
|
24 |
563 | 25 volatile ngx_msec_t ngx_current_msec; |
26 volatile ngx_time_t *ngx_cached_time; | |
27 volatile ngx_str_t ngx_cached_err_log_time; | |
28 volatile ngx_str_t ngx_cached_http_time; | |
29 volatile ngx_str_t ngx_cached_http_log_time; | |
182
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
181
diff
changeset
|
30 |
3475
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
31 #if !(NGX_WIN32) |
3474
d4c4cfdffe30
*) use previously cached GMT offset value to update time from a signal handler
Igor Sysoev <igor@sysoev.ru>
parents:
2220
diff
changeset
|
32 |
d4c4cfdffe30
*) use previously cached GMT offset value to update time from a signal handler
Igor Sysoev <igor@sysoev.ru>
parents:
2220
diff
changeset
|
33 /* |
d4c4cfdffe30
*) use previously cached GMT offset value to update time from a signal handler
Igor Sysoev <igor@sysoev.ru>
parents:
2220
diff
changeset
|
34 * locatime() and localtime_r() are not Async-Signal-Safe functions, therefore, |
3475
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
35 * they must not be called by a signal handler, so we use the cached |
3474
d4c4cfdffe30
*) use previously cached GMT offset value to update time from a signal handler
Igor Sysoev <igor@sysoev.ru>
parents:
2220
diff
changeset
|
36 * GMT offset value. Fortunately the value is changed only two times a year. |
d4c4cfdffe30
*) use previously cached GMT offset value to update time from a signal handler
Igor Sysoev <igor@sysoev.ru>
parents:
2220
diff
changeset
|
37 */ |
d4c4cfdffe30
*) use previously cached GMT offset value to update time from a signal handler
Igor Sysoev <igor@sysoev.ru>
parents:
2220
diff
changeset
|
38 |
d4c4cfdffe30
*) use previously cached GMT offset value to update time from a signal handler
Igor Sysoev <igor@sysoev.ru>
parents:
2220
diff
changeset
|
39 static ngx_int_t cached_gmtoff; |
d4c4cfdffe30
*) use previously cached GMT offset value to update time from a signal handler
Igor Sysoev <igor@sysoev.ru>
parents:
2220
diff
changeset
|
40 #endif |
d4c4cfdffe30
*) use previously cached GMT offset value to update time from a signal handler
Igor Sysoev <igor@sysoev.ru>
parents:
2220
diff
changeset
|
41 |
563 | 42 static ngx_time_t cached_time[NGX_TIME_SLOTS]; |
43 static u_char cached_err_log_time[NGX_TIME_SLOTS] | |
44 [sizeof("1970/09/28 12:00:00")]; | |
45 static u_char cached_http_time[NGX_TIME_SLOTS] | |
46 [sizeof("Mon, 28 Sep 1970 06:00:00 GMT")]; | |
47 static u_char cached_http_log_time[NGX_TIME_SLOTS] | |
48 [sizeof("28/Sep/1970:12:00:00 +0600")]; | |
178
a8ff48d26cca
nginx-0.0.1-2003-11-11-00:09:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
49 |
a8ff48d26cca
nginx-0.0.1-2003-11-11-00:09:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
50 |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
324
diff
changeset
|
51 static char *week[] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" }; |
182
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
181
diff
changeset
|
52 static char *months[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", |
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
181
diff
changeset
|
53 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" }; |
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
181
diff
changeset
|
54 |
501 | 55 void |
56 ngx_time_init(void) | |
182
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
181
diff
changeset
|
57 { |
370
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
358
diff
changeset
|
58 ngx_cached_err_log_time.len = sizeof("1970/09/28 12:00:00") - 1; |
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
358
diff
changeset
|
59 ngx_cached_http_time.len = sizeof("Mon, 28 Sep 1970 06:00:00 GMT") - 1; |
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
358
diff
changeset
|
60 ngx_cached_http_log_time.len = sizeof("28/Sep/1970:12:00:00 +0600") - 1; |
323
ba876b26b76d
nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
61 |
370
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
358
diff
changeset
|
62 ngx_cached_time = &cached_time[0]; |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
63 |
3475
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
64 ngx_time_update(); |
270
7bb9562216ce
nginx-0.0.2-2004-02-25-23:16:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
266
diff
changeset
|
65 } |
266
5238e93961a1
nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
66 |
270
7bb9562216ce
nginx-0.0.2-2004-02-25-23:16:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
266
diff
changeset
|
67 |
563 | 68 void |
3475
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
69 ngx_time_update(void) |
270
7bb9562216ce
nginx-0.0.2-2004-02-25-23:16:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
266
diff
changeset
|
70 { |
563 | 71 u_char *p0, *p1, *p2; |
72 ngx_tm_t tm, gmt; | |
3474
d4c4cfdffe30
*) use previously cached GMT offset value to update time from a signal handler
Igor Sysoev <igor@sysoev.ru>
parents:
2220
diff
changeset
|
73 time_t sec; |
d4c4cfdffe30
*) use previously cached GMT offset value to update time from a signal handler
Igor Sysoev <igor@sysoev.ru>
parents:
2220
diff
changeset
|
74 ngx_uint_t msec; |
563 | 75 ngx_time_t *tp; |
76 struct timeval tv; | |
182
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
181
diff
changeset
|
77 |
563 | 78 if (!ngx_trylock(&ngx_time_lock)) { |
271
e16dfb9b9afa
nginx-0.0.2-2004-02-26-20:10:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
270
diff
changeset
|
79 return; |
266
5238e93961a1
nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
80 } |
370
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
358
diff
changeset
|
81 |
3474
d4c4cfdffe30
*) use previously cached GMT offset value to update time from a signal handler
Igor Sysoev <igor@sysoev.ru>
parents:
2220
diff
changeset
|
82 ngx_gettimeofday(&tv); |
563 | 83 |
3474
d4c4cfdffe30
*) use previously cached GMT offset value to update time from a signal handler
Igor Sysoev <igor@sysoev.ru>
parents:
2220
diff
changeset
|
84 sec = tv.tv_sec; |
d4c4cfdffe30
*) use previously cached GMT offset value to update time from a signal handler
Igor Sysoev <igor@sysoev.ru>
parents:
2220
diff
changeset
|
85 msec = tv.tv_usec / 1000; |
563 | 86 |
87 ngx_current_msec = (ngx_msec_t) sec * 1000 + msec; | |
88 | |
89 tp = &cached_time[slot]; | |
266
5238e93961a1
nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
90 |
563 | 91 if (tp->sec == sec) { |
891
8a3ba663be1a
slot number must be incremented once per second only,
Igor Sysoev <igor@sysoev.ru>
parents:
563
diff
changeset
|
92 tp->msec = msec; |
563 | 93 ngx_unlock(&ngx_time_lock); |
94 return; | |
95 } | |
370
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
358
diff
changeset
|
96 |
1086
a62d30719ea1
fix segfault if nginx was build with -O2 -fomit-frame-pointer,
Igor Sysoev <igor@sysoev.ru>
parents:
1081
diff
changeset
|
97 if (slot == NGX_TIME_SLOTS - 1) { |
891
8a3ba663be1a
slot number must be incremented once per second only,
Igor Sysoev <igor@sysoev.ru>
parents:
563
diff
changeset
|
98 slot = 0; |
8a3ba663be1a
slot number must be incremented once per second only,
Igor Sysoev <igor@sysoev.ru>
parents:
563
diff
changeset
|
99 } else { |
8a3ba663be1a
slot number must be incremented once per second only,
Igor Sysoev <igor@sysoev.ru>
parents:
563
diff
changeset
|
100 slot++; |
8a3ba663be1a
slot number must be incremented once per second only,
Igor Sysoev <igor@sysoev.ru>
parents:
563
diff
changeset
|
101 } |
8a3ba663be1a
slot number must be incremented once per second only,
Igor Sysoev <igor@sysoev.ru>
parents:
563
diff
changeset
|
102 |
8a3ba663be1a
slot number must be incremented once per second only,
Igor Sysoev <igor@sysoev.ru>
parents:
563
diff
changeset
|
103 tp = &cached_time[slot]; |
8a3ba663be1a
slot number must be incremented once per second only,
Igor Sysoev <igor@sysoev.ru>
parents:
563
diff
changeset
|
104 |
563 | 105 tp->sec = sec; |
891
8a3ba663be1a
slot number must be incremented once per second only,
Igor Sysoev <igor@sysoev.ru>
parents:
563
diff
changeset
|
106 tp->msec = msec; |
563 | 107 |
108 ngx_gmtime(sec, &gmt); | |
181
811bdd2af794
nginx-0.0.1-2003-11-12-20:25:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
180
diff
changeset
|
109 |
323
ba876b26b76d
nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
110 |
1081
4cf9d9b644f7
fix segfault if nginx was build with -O2 -fomit-frame-pointer
Igor Sysoev <igor@sysoev.ru>
parents:
932
diff
changeset
|
111 p0 = &cached_http_time[slot][0]; |
323
ba876b26b76d
nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
112 |
563 | 113 (void) ngx_sprintf(p0, "%s, %02d %s %4d %02d:%02d:%02d GMT", |
114 week[gmt.ngx_tm_wday], gmt.ngx_tm_mday, | |
115 months[gmt.ngx_tm_mon - 1], gmt.ngx_tm_year, | |
116 gmt.ngx_tm_hour, gmt.ngx_tm_min, gmt.ngx_tm_sec); | |
323
ba876b26b76d
nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
117 |
469 | 118 #if (NGX_HAVE_GETTIMEZONE) |
358
0a03c921c81d
nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
326
diff
changeset
|
119 |
563 | 120 tp->gmtoff = ngx_gettimezone(); |
121 ngx_gmtime(sec + tp->gmtoff * 60, &tm); | |
323
ba876b26b76d
nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
122 |
3475
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
123 #elif (NGX_HAVE_GMTOFF) |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
124 |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
125 ngx_localtime(sec, &tm); |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
126 cached_gmtoff = (ngx_int_t) (tm.ngx_tm_gmtoff / 60); |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
127 tp->gmtoff = cached_gmtoff; |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
128 |
323
ba876b26b76d
nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
129 #else |
178
a8ff48d26cca
nginx-0.0.1-2003-11-11-00:09:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
130 |
3475
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
131 ngx_localtime(sec, &tm); |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
132 cached_gmtoff = ngx_timezone(tm.ngx_tm_isdst); |
3474
d4c4cfdffe30
*) use previously cached GMT offset value to update time from a signal handler
Igor Sysoev <igor@sysoev.ru>
parents:
2220
diff
changeset
|
133 tp->gmtoff = cached_gmtoff; |
178
a8ff48d26cca
nginx-0.0.1-2003-11-11-00:09:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
134 |
323
ba876b26b76d
nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
135 #endif |
ba876b26b76d
nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
136 |
ba876b26b76d
nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
137 |
1081
4cf9d9b644f7
fix segfault if nginx was build with -O2 -fomit-frame-pointer
Igor Sysoev <igor@sysoev.ru>
parents:
932
diff
changeset
|
138 p1 = &cached_err_log_time[slot][0]; |
323
ba876b26b76d
nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
139 |
563 | 140 (void) ngx_sprintf(p1, "%4d/%02d/%02d %02d:%02d:%02d", |
517 | 141 tm.ngx_tm_year, tm.ngx_tm_mon, |
142 tm.ngx_tm_mday, tm.ngx_tm_hour, | |
143 tm.ngx_tm_min, tm.ngx_tm_sec); | |
182
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
181
diff
changeset
|
144 |
323
ba876b26b76d
nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
145 |
1081
4cf9d9b644f7
fix segfault if nginx was build with -O2 -fomit-frame-pointer
Igor Sysoev <igor@sysoev.ru>
parents:
932
diff
changeset
|
146 p2 = &cached_http_log_time[slot][0]; |
323
ba876b26b76d
nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
147 |
563 | 148 (void) ngx_sprintf(p2, "%02d/%s/%d:%02d:%02d:%02d %c%02d%02d", |
517 | 149 tm.ngx_tm_mday, months[tm.ngx_tm_mon - 1], |
150 tm.ngx_tm_year, tm.ngx_tm_hour, | |
151 tm.ngx_tm_min, tm.ngx_tm_sec, | |
563 | 152 tp->gmtoff < 0 ? '-' : '+', |
153 ngx_abs(tp->gmtoff / 60), ngx_abs(tp->gmtoff % 60)); | |
323
ba876b26b76d
nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
154 |
266
5238e93961a1
nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
155 |
563 | 156 ngx_memory_barrier(); |
266
5238e93961a1
nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
157 |
563 | 158 ngx_cached_time = tp; |
159 ngx_cached_http_time.data = p0; | |
160 ngx_cached_err_log_time.data = p1; | |
161 ngx_cached_http_log_time.data = p2; | |
162 | |
163 ngx_unlock(&ngx_time_lock); | |
178
a8ff48d26cca
nginx-0.0.1-2003-11-11-00:09:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
164 } |
182
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 |
3475
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
167 #if !(NGX_WIN32) |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
168 |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
169 void |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
170 ngx_time_sigsafe_update(void) |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
171 { |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
172 u_char *p; |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
173 ngx_tm_t tm; |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
174 time_t sec; |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
175 ngx_time_t *tp; |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
176 struct timeval tv; |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
177 |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
178 if (!ngx_trylock(&ngx_time_lock)) { |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
179 return; |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
180 } |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
181 |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
182 ngx_gettimeofday(&tv); |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
183 |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
184 sec = tv.tv_sec; |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
185 |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
186 tp = &cached_time[slot]; |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
187 |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
188 if (tp->sec == sec) { |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
189 ngx_unlock(&ngx_time_lock); |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
190 return; |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
191 } |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
192 |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
193 if (slot == NGX_TIME_SLOTS - 1) { |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
194 slot = 0; |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
195 } else { |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
196 slot++; |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
197 } |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
198 |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
199 ngx_gmtime(sec + cached_gmtoff * 60, &tm); |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
200 |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
201 p = &cached_err_log_time[slot][0]; |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
202 |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
203 (void) ngx_sprintf(p, "%4d/%02d/%02d %02d:%02d:%02d", |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
204 tm.ngx_tm_year, tm.ngx_tm_mon, |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
205 tm.ngx_tm_mday, tm.ngx_tm_hour, |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
206 tm.ngx_tm_min, tm.ngx_tm_sec); |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
207 |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
208 ngx_memory_barrier(); |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
209 |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
210 ngx_cached_err_log_time.data = p; |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
211 |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
212 ngx_unlock(&ngx_time_lock); |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
213 } |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
214 |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
215 #endif |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
216 |
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
217 |
501 | 218 u_char * |
219 ngx_http_time(u_char *buf, time_t t) | |
182
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
181
diff
changeset
|
220 { |
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
181
diff
changeset
|
221 ngx_tm_t tm; |
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
181
diff
changeset
|
222 |
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
181
diff
changeset
|
223 ngx_gmtime(t, &tm); |
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
181
diff
changeset
|
224 |
455 | 225 return ngx_sprintf(buf, "%s, %02d %s %4d %02d:%02d:%02d GMT", |
226 week[tm.ngx_tm_wday], | |
227 tm.ngx_tm_mday, | |
228 months[tm.ngx_tm_mon - 1], | |
229 tm.ngx_tm_year, | |
230 tm.ngx_tm_hour, | |
231 tm.ngx_tm_min, | |
232 tm.ngx_tm_sec); | |
409
8ac40cae79f0
nginx-0.0.10-2004-08-29-07:55:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
388
diff
changeset
|
233 } |
8ac40cae79f0
nginx-0.0.10-2004-08-29-07:55:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
388
diff
changeset
|
234 |
8ac40cae79f0
nginx-0.0.10-2004-08-29-07:55:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
388
diff
changeset
|
235 |
501 | 236 u_char * |
237 ngx_http_cookie_time(u_char *buf, time_t t) | |
409
8ac40cae79f0
nginx-0.0.10-2004-08-29-07:55:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
388
diff
changeset
|
238 { |
8ac40cae79f0
nginx-0.0.10-2004-08-29-07:55:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
388
diff
changeset
|
239 ngx_tm_t tm; |
8ac40cae79f0
nginx-0.0.10-2004-08-29-07:55:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
388
diff
changeset
|
240 |
8ac40cae79f0
nginx-0.0.10-2004-08-29-07:55:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
388
diff
changeset
|
241 ngx_gmtime(t, &tm); |
8ac40cae79f0
nginx-0.0.10-2004-08-29-07:55:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
388
diff
changeset
|
242 |
8ac40cae79f0
nginx-0.0.10-2004-08-29-07:55:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
388
diff
changeset
|
243 /* |
8ac40cae79f0
nginx-0.0.10-2004-08-29-07:55:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
388
diff
changeset
|
244 * Netscape 3.x does not understand 4-digit years at all and |
8ac40cae79f0
nginx-0.0.10-2004-08-29-07:55:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
388
diff
changeset
|
245 * 2-digit years more than "37" |
8ac40cae79f0
nginx-0.0.10-2004-08-29-07:55:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
388
diff
changeset
|
246 */ |
8ac40cae79f0
nginx-0.0.10-2004-08-29-07:55:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
388
diff
changeset
|
247 |
455 | 248 return ngx_sprintf(buf, |
249 (tm.ngx_tm_year > 2037) ? | |
250 "%s, %02d-%s-%d %02d:%02d:%02d GMT": | |
251 "%s, %02d-%s-%02d %02d:%02d:%02d GMT", | |
252 week[tm.ngx_tm_wday], | |
253 tm.ngx_tm_mday, | |
254 months[tm.ngx_tm_mon - 1], | |
255 (tm.ngx_tm_year > 2037) ? tm.ngx_tm_year: | |
256 tm.ngx_tm_year % 100, | |
257 tm.ngx_tm_hour, | |
258 tm.ngx_tm_min, | |
259 tm.ngx_tm_sec); | |
182
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
181
diff
changeset
|
260 } |
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
181
diff
changeset
|
261 |
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
181
diff
changeset
|
262 |
501 | 263 void |
264 ngx_gmtime(time_t t, ngx_tm_t *tp) | |
182
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
181
diff
changeset
|
265 { |
1970
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
266 ngx_int_t yday; |
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
267 ngx_uint_t n, sec, min, hour, mday, mon, year, wday, days, leap; |
182
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
181
diff
changeset
|
268 |
1874
085e536d856d
treat time_t as unsigned time
Igor Sysoev <igor@sysoev.ru>
parents:
1640
diff
changeset
|
269 /* the calculation is valid for positive time_t only */ |
1970
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
270 |
1874
085e536d856d
treat time_t as unsigned time
Igor Sysoev <igor@sysoev.ru>
parents:
1640
diff
changeset
|
271 n = (ngx_uint_t) t; |
085e536d856d
treat time_t as unsigned time
Igor Sysoev <igor@sysoev.ru>
parents:
1640
diff
changeset
|
272 |
085e536d856d
treat time_t as unsigned time
Igor Sysoev <igor@sysoev.ru>
parents:
1640
diff
changeset
|
273 days = n / 86400; |
182
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
181
diff
changeset
|
274 |
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
181
diff
changeset
|
275 /* Jaunary 1, 1970 was Thursday */ |
1970
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
276 |
182
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
181
diff
changeset
|
277 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
|
278 |
1874
085e536d856d
treat time_t as unsigned time
Igor Sysoev <igor@sysoev.ru>
parents:
1640
diff
changeset
|
279 n %= 86400; |
085e536d856d
treat time_t as unsigned time
Igor Sysoev <igor@sysoev.ru>
parents:
1640
diff
changeset
|
280 hour = n / 3600; |
085e536d856d
treat time_t as unsigned time
Igor Sysoev <igor@sysoev.ru>
parents:
1640
diff
changeset
|
281 n %= 3600; |
085e536d856d
treat time_t as unsigned time
Igor Sysoev <igor@sysoev.ru>
parents:
1640
diff
changeset
|
282 min = n / 60; |
085e536d856d
treat time_t as unsigned time
Igor Sysoev <igor@sysoev.ru>
parents:
1640
diff
changeset
|
283 sec = n % 60; |
182
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
181
diff
changeset
|
284 |
1970
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
285 /* |
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
286 * the algorithm based on Gauss' formula, |
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
287 * see src/http/ngx_http_parse_time.c |
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
288 */ |
208
0b67be7d4489
nginx-0.0.1-2003-12-08-23:48:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
207
diff
changeset
|
289 |
1970
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
290 /* days since March 1, 1 BC */ |
182
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
181
diff
changeset
|
291 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
|
292 |
1970
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
293 /* |
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
294 * The "days" should be adjusted to 1 only, however, some March 1st's go |
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
295 * to previous year, so we adjust them to 2. This causes also shift of the |
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
296 * last Feburary days to next year, but we catch the case when "yday" |
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
297 * becomes negative. |
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
298 */ |
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
299 |
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
300 year = (days + 2) * 400 / (365 * 400 + 100 - 4 + 1); |
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
301 |
182
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
181
diff
changeset
|
302 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
|
303 |
1970
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
304 if (yday < 0) { |
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
305 leap = (year % 4 == 0) && (year % 100 || (year % 400 == 0)); |
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
306 yday = 365 + leap + yday; |
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
307 year--; |
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
308 } |
182
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
181
diff
changeset
|
309 |
1970
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
310 /* |
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
311 * The empirical formula that maps "yday" to month. |
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
312 * There are at least 10 variants, some of them are: |
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
313 * mon = (yday + 31) * 15 / 459 |
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
314 * mon = (yday + 31) * 17 / 520 |
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
315 * mon = (yday + 31) * 20 / 612 |
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
316 */ |
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
317 |
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
318 mon = (yday + 31) * 10 / 306; |
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
319 |
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
320 /* the Gauss' formula that evaluates days before the month */ |
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
321 |
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
322 mday = yday - (367 * mon / 12 - 30) + 1; |
182
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
181
diff
changeset
|
323 |
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
181
diff
changeset
|
324 if (yday >= 306) { |
441
da8c5707af39
nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents:
433
diff
changeset
|
325 |
1970
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
326 year++; |
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
327 mon -= 10; |
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
328 |
297
ee394e997c77
nginx-0.0.3-2004-03-29-21:43:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
329 /* |
324
0ab66f4b6c4d
nginx-0.0.3-2004-04-22-00:13:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
323
diff
changeset
|
330 * there is no "yday" in Win32 SYSTEMTIME |
297
ee394e997c77
nginx-0.0.3-2004-03-29-21:43:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
331 * |
ee394e997c77
nginx-0.0.3-2004-03-29-21:43:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
332 * yday -= 306; |
ee394e997c77
nginx-0.0.3-2004-03-29-21:43:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
333 */ |
ee394e997c77
nginx-0.0.3-2004-03-29-21:43:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
334 |
1970
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
335 } else { |
182
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
181
diff
changeset
|
336 |
1970
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
337 mon += 2; |
182
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
181
diff
changeset
|
338 |
1970
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
339 /* |
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
340 * there is no "yday" in Win32 SYSTEMTIME |
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
341 * |
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
342 * yday += 31 + 28 + leap; |
5bb2c374cab2
use more straightforward ngx_gmtime() implementation
Igor Sysoev <igor@sysoev.ru>
parents:
1874
diff
changeset
|
343 */ |
182
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
181
diff
changeset
|
344 } |
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
181
diff
changeset
|
345 |
290
87e73f067470
nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
271
diff
changeset
|
346 tp->ngx_tm_sec = (ngx_tm_sec_t) sec; |
87e73f067470
nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
271
diff
changeset
|
347 tp->ngx_tm_min = (ngx_tm_min_t) min; |
87e73f067470
nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
271
diff
changeset
|
348 tp->ngx_tm_hour = (ngx_tm_hour_t) hour; |
87e73f067470
nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
271
diff
changeset
|
349 tp->ngx_tm_mday = (ngx_tm_mday_t) mday; |
87e73f067470
nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
271
diff
changeset
|
350 tp->ngx_tm_mon = (ngx_tm_mon_t) mon; |
87e73f067470
nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
271
diff
changeset
|
351 tp->ngx_tm_year = (ngx_tm_year_t) year; |
87e73f067470
nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
271
diff
changeset
|
352 tp->ngx_tm_wday = (ngx_tm_wday_t) wday; |
182
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
181
diff
changeset
|
353 } |
2162 | 354 |
355 | |
356 time_t | |
357 ngx_next_time(time_t when) | |
358 { | |
359 time_t now, next; | |
360 struct tm tm; | |
361 | |
362 now = ngx_time(); | |
363 | |
364 ngx_libc_localtime(now, &tm); | |
365 | |
366 tm.tm_hour = (int) (when / 3600); | |
367 when %= 3600; | |
368 tm.tm_min = (int) (when / 60); | |
369 tm.tm_sec = (int) (when % 60); | |
370 | |
371 next = mktime(&tm); | |
372 | |
373 if (next == -1) { | |
374 return -1; | |
375 } | |
376 | |
377 if (next - now > 0) { | |
378 return next; | |
379 } | |
380 | |
381 tm.tm_mday++; | |
382 | |
383 /* mktime() should normalize a date (Jan 32, etc) */ | |
384 | |
385 next = mktime(&tm); | |
386 | |
387 if (next != -1) { | |
388 return next; | |
389 } | |
390 | |
391 return -1; | |
392 } |