Cosmo/src/_time.h

56 lines
1.2 KiB
C

#ifndef COSMO_TIME_H
#define COSMO_TIME_H
#ifdef _WIN32
# include <time.h>
# include <windows.h>
# if defined(_MSC_VER) || defined(_MSC_EXTENSIONS)
# define DELTA_EPOCH_IN_MICROSECS 116444736000000000Ui64
# else
# define DELTA_EPOCH_IN_MICROSECS 116444736000000000ULL
# endif
struct timezone
{
int tz_minuteswest; /* minutes W of Greenwich */
int tz_dsttime; /* type of dst correction */
};
int gettimeofday(struct timeval *tv, struct timezone *tz)
{
FILETIME ft;
unsigned __int64 tmpres = 0;
static int tzflag;
if (NULL != tv) {
GetSystemTimeAsFileTime(&ft);
tmpres |= ft.dwHighDateTime;
tmpres <<= 32;
tmpres |= ft.dwLowDateTime;
/*converting file time to unix epoch*/
tmpres /= 10; /*convert into microseconds*/
tmpres -= DELTA_EPOCH_IN_MICROSECS;
tv->tv_sec = (long)(tmpres / 1000000UL);
tv->tv_usec = (long)(tmpres % 1000000UL);
}
if (NULL != tz) {
if (!tzflag) {
_tzset();
tzflag++;
}
tz->tz_minuteswest = _timezone / 60;
tz->tz_dsttime = _daylight;
}
return 0;
}
#else
# include <sys/time.h>
#endif
#endif