#include "libcompat.h"
#include <errno.h>

#if defined(_MSC_VER) || defined(__BORLANDC__)
#define EPOCHFILETIME (116444736000000000i64)
#else
#define EPOCHFILETIME (116444736000000000LL)
#endif

int gettimeofday(struct timeval *tv, void *tz)
{
#if _MSC_VER
    union
    {
        __int64 ns100;          /*time since 1 Jan 1601 in 100ns units */
        FILETIME ft;
    } now;

    GetSystemTimeAsFileTime(&now.ft);
    tv->tv_usec = (long)((now.ns100 / 10LL) % 1000000LL);
    tv->tv_sec = (long)((now.ns100 - EPOCHFILETIME) / 10000000LL);
    return (0);
#else
    // Return that there is no implementation of this on the system
    errno = ENOSYS;
    return -1;
#endif /* _MSC_VER */
}