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