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annotate src/os/win32/ngx_time.c @ 2724:9fd2f12fee0a

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fix Win32 ngx_gettimezone()
author Igor Sysoev <igor@sysoev.ru>
date Sun, 19 Apr 2009 19:08:49 +0000
parents 9c2f3ed7a247
children d620f497c50f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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11 void
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12 ngx_gettimeofday(struct timeval *tp)
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13 {
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14 uint64_t intervals;
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15 FILETIME ft;
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16
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17 GetSystemTimeAsFileTime(&ft);
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18
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19 /*
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20 * A file time is a 64-bit value that represents the number
9f3a78b06c48 nginx-0.0.1-2003-11-11-21:13:43 import
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21 * of 100-nanosecond intervals that have elapsed since
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22 * January 1, 1601 12:00 A.M. UTC.
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23 *
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24 * Between January 1, 1970 (Epoch) and January 1, 1601 there were
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25 * 134744 days,
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26 * 11644473600 seconds or
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27 * 11644473600,000,000,0 100-nanosecond intervals.
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00cafae0bdf1 nginx-0.0.1-2003-12-14-23:10:27 import
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28 *
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29 * See also MSKB Q167296.
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30 */
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31
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32 intervals = ((uint64_t) ft.dwHighDateTime << 32) | ft.dwLowDateTime;
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33 intervals -= 116444736000000000;
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34
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35 tp->tv_sec = (long) (intervals / 10000000);
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36 tp->tv_usec = (long) ((intervals % 10000000) / 10);
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37 }
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39
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40 void
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41 ngx_libc_localtime(time_t s, struct tm *tm)
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42 {
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43 struct tm *t;
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44
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45 t = localtime(&s);
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46 *tm = *t;
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47 }
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50 void
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51 ngx_libc_gmtime(time_t s, struct tm *tm)
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52 {
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53 struct tm *t;
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54
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55 t = gmtime(&s);
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56 *tm = *t;
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57 }
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60 ngx_int_t
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61 ngx_gettimezone(void)
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62 {
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63 u_long n;
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64 TIME_ZONE_INFORMATION tz;
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65
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66 n = GetTimeZoneInformation(&tz);
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67
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68 switch (n) {
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69
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70 case TIME_ZONE_ID_UNKNOWN:
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71 return -tz.Bias;
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72
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73 case TIME_ZONE_ID_STANDARD:
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74 return -(tz.Bias + tz.StandardBias);
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75
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76 case TIME_ZONE_ID_DAYLIGHT:
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77 return -(tz.Bias + tz.DaylightBias);
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78
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79 default: /* TIME_ZONE_ID_INVALID */
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80 return 0;
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81 }
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82 }