#ifdef _WIN32
#include <stdint.h>
#include <windows.h>
#define FILETIME_TO_UNIX 116444736000000000i64
#else
#include <sys/time.h>
#endif

#include "timestamp.h"
#include <stdlib.h>

#ifdef _WIN32
double get_timestamp ()
{
    FILETIME ft;
    GetSystemTimePreciseAsFileTime (&ft);
    int64_t t = ((int64_t)ft.dwHighDateTime << 32L) | (int64_t)ft.dwLowDateTime;
    return (t - FILETIME_TO_UNIX) / (10.0 * 1000.0 * 1000.0);
}
#else
double get_timestamp ()
{
    struct timeval tv;
    gettimeofday (&tv, NULL);
    return (double)(tv.tv_sec) + (double)(tv.tv_usec) / 1000000.0;
}
#endif