GOSTCoin CUDA miner project, compatible with most nvidia cards, containing only gostd algo
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#include < time.h >
#include <windows.h> //I've ommited this line.
#if defined(_MSC_VER) || defined(_MSC_EXTENSIONS)
#define DELTA_EPOCH_IN_MICROSECS 11644473600000000Ui64
#else
#define DELTA_EPOCH_IN_MICROSECS 11644473600000000ULL
#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;
}
void usleep(__int64 waitTime)
{
if (waitTime > 0)
{
if (waitTime > 100)
{
// use a waitable timer for larger intervals > 0.1ms
HANDLE timer;
LARGE_INTEGER ft;
ft.QuadPart = -(10*waitTime); // Convert to 100 nanosecond interval, negative value indicates relative time
timer = CreateWaitableTimer(NULL, TRUE, NULL);
SetWaitableTimer(timer, &ft, 0, NULL, NULL, 0);
WaitForSingleObject(timer, INFINITE);
CloseHandle(timer);
}
else
{
// use a polling loop for short intervals <= 100ms
LARGE_INTEGER perfCnt, start, now;
__int64 elapsed;
QueryPerformanceFrequency(&perfCnt);
QueryPerformanceCounter(&start);
do {
QueryPerformanceCounter((LARGE_INTEGER*) &now);
elapsed = (__int64)((now.QuadPart - start.QuadPart) / (float)perfCnt.QuadPart * 1000 * 1000);
} while ( elapsed < waitTime );
}
}
}