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ed5edc04ca
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/map65@626 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
75 lines
1.4 KiB
C
75 lines
1.4 KiB
C
/*
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* timeval.h 1.0 01/12/19
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*
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* Defines gettimeofday, timeval, etc. for Win32
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*
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* By Wu Yongwei
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*
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*/
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#ifndef _TIMEVAL_H
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#define _TIMEVAL_H
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#ifdef _WIN32
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#include <time.h>
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#ifndef __GNUC__
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#define EPOCHFILETIME (116444736000000000i64)
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#else
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#define EPOCHFILETIME (116444736000000000LL)
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#endif
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//struct timeval {
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// long tv_sec; /* seconds */
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// long tv_usec; /* microseconds */
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//};
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struct timezone {
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int tz_minuteswest; /* minutes W of Greenwich */
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int tz_dsttime; /* type of dst correction */
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};
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__inline int gettimeofday(struct timeval *tv, struct timezone *tz)
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{
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FILETIME ft;
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LARGE_INTEGER li;
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__int64 t;
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static int tzflag;
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if (tv)
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{
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GetSystemTimeAsFileTime(&ft);
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li.LowPart = ft.dwLowDateTime;
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li.HighPart = ft.dwHighDateTime;
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t = li.QuadPart; /* In 100-nanosecond intervals */
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t -= EPOCHFILETIME; /* Offset to the Epoch time */
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t /= 10; /* In microseconds */
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tv->tv_sec = (long)(t / 1000000);
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tv->tv_usec = (long)(t % 1000000);
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}
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if (tz)
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{
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if (!tzflag)
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{
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_tzset();
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tzflag++;
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}
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tz->tz_minuteswest = _timezone / 60;
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tz->tz_dsttime = _daylight;
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}
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return 0;
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}
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#else /* _WIN32 */
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#include <sys/time.h>
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#endif /* _WIN32 */
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#endif /* _TIMEVAL_H */
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