/* * timeval.h 1.3 2003/01/14 * * Defines gettimeofday, timeval, etc. for Win32 * * By Wu Yongwei * */ #ifndef _TIMEVAL_H #define _TIMEVAL_H #ifdef _WIN32 #define WIN32_LEAN_AND_MEAN #include #include #if defined(_MSC_VER) || defined(__BORLANDC__) #define EPOCHFILETIME (116444736000000000i64) #else #define EPOCHFILETIME (116444736000000000LL) #endif struct timezone { int tz_minuteswest; /* minutes W of Greenwich */ int tz_dsttime; /* type of dst correction */ }; __inline int gettimeofday(struct timeval *tv, struct timezone *tz) { FILETIME ft; LARGE_INTEGER li; __int64 t; static int tzflag; if (tv) { GetSystemTimeAsFileTime(&ft); li.LowPart = ft.dwLowDateTime; li.HighPart = ft.dwHighDateTime; t = li.QuadPart; /* In 100-nanosecond intervals */ t -= EPOCHFILETIME; /* Offset to the Epoch time */ t /= 10; /* In microseconds */ tv->tv_sec = (long)(t / 1000000); tv->tv_usec = (long)(t % 1000000); } if (tz) { if (!tzflag) { _tzset(); tzflag++; } tz->tz_minuteswest = _timezone / 60; tz->tz_dsttime = _daylight; } return 0; } #else /* _WIN32 */ #include #endif /* _WIN32 */ #endif /* _TIMEVAL_H */