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關(guān)于win32 gettimeofday替代方案

 更新時間:2016年12月31日 09:09:25   投稿:jingxian  
下面小編就為大家?guī)硪黄P(guān)于win32 gettimeofday替代方案。小編覺得挺不錯的,現(xiàn)在就分享給大家,也給大家做個參考。一起跟隨小編過來看看吧

來自nginx代碼:

void
ngx_gettimeofday(struct timeval *tp)
{
  uint64_t intervals;
  FILETIME ft;

  GetSystemTimeAsFileTime(&ft);

  /*
   * A file time is a 64-bit value that represents the number
   * of 100-nanosecond intervals that have elapsed since
   * January 1, 1601 12:00 A.M. UTC.
   *
   * Between January 1, 1970 (Epoch) and January 1, 1601 there were
   * 134744 days,
   * 11644473600 seconds or
   * 11644473600,000,000,0 100-nanosecond intervals.
   *
   * See also MSKB Q167296.
   */

  intervals = ((uint64_t) ft.dwHighDateTime << 32) | ft.dwLowDateTime;
  intervals -= 116444736000000000;

  tp->tv_sec = (long) (intervals / 10000000);
  tp->tv_usec = (long) ((intervals % 10000000) / 10);
}

以上就是小編為大家?guī)淼年P(guān)于win32 gettimeofday替代方案全部內(nèi)容了,希望大家多多支持腳本之家~

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