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annotate src/os/unix/ngx_time.c @ 28:a117a7fdf042

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nginx-0.0.1-2002-12-16-00:08:04 import
author Igor Sysoev <igor@sysoev.ru>
date Sun, 15 Dec 2002 21:08:04 +0000
parents d220029ac7f3
children b48066122884
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4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
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1
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
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2 #include <ngx_config.h>
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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3 #include <ngx_time.h>
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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4
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
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5 void ngx_localtime(ngx_tm_t *tm)
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
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6 {
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
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7 time_t clock = time(NULL);
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
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8 localtime_r(&clock, tm);
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a117a7fdf042 nginx-0.0.1-2002-12-16-00:08:04 import
Igor Sysoev <igor@sysoev.ru>
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9 tm->ngx_tm_mon++;
a117a7fdf042 nginx-0.0.1-2002-12-16-00:08:04 import
Igor Sysoev <igor@sysoev.ru>
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10 tm->ngx_tm_year += 1900;
0
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
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11 }
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
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12
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
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13 u_int ngx_msec(void)
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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14 {
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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15 struct timeval tv;
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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16
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
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17 gettimeofday(&tv, NULL);
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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18
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
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19 return tv.tv_sec * 1000 + tv.tv_usec / 1000;
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
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20 }
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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21
1
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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22
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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23 #if 0
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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24
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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25 typedef struct {
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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26 int busy;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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27 u_int_64 msec;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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28 time_t sec;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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29 tm;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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30 http_time_len;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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31 http_time[n];
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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32 };
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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33
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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34 volatile *ngx_time_p;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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35
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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36 ngx_time()
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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37 {
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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38 p = ngx_time_p;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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39 }
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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40
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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41 ngx_update_time()
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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42 {
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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43 u_int64 msec;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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44 struct timeval tv;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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45
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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46 gettimeofday(&tv, NULL);
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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47
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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48 msec = (unsigned long) tv.tv_sec * 1000 + tv.tv_usec / 1000;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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49 p = ngx_time_p;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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50
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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51 /* minimum can be for example 0, 10, 50 or 100 ms */
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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52 if (tv_sec > p->sec || msec - p->msec >= minimum) {
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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53 old_p = p;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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54 /* max_tries < max_slots - 10,
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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55 max_slots should be more than max of threads */
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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56 for (/* void */; i < max_tries; i++) {
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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57 if (++p >= last_slot)
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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58 p = first_slot;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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59
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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60 if (!test_and_set(p->busy)
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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61 break;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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62 }
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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63
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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64 if (i == max_tries) {
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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65 ngx_log_error();
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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66 return;
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67 }
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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68
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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69 if (tv_sec > p->sec) {
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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70 p->sec = tv.tv.sec;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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71 p->msec = msec;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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72 localtime_r(&tv.tv_sec, tm);
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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73 make http stirng;
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74
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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75 } else {
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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76 ngx_memcpy(p->sec, old_p->sec, sizeof() - offset_of(, sec));
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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77 p->msec = msec;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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78 }
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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79
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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80 /* here can be too seldom and non-critical race condition */
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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81 if (ngx_time_p == old_p)
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82 ngx_time_p = p;
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83
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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84 unlock(p->busy);
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85 }
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86 }
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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87
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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88 #endif