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#include "unistd.h"
#include <cstdint>
#include <chrono>
#include <thread>
#include <windows.h>
extern "C" {
int usleep(unsigned usec)
{
std::this_thread::sleep_for(std::chrono::microseconds(usec));
return 0;
}
// SO: https://stackoverflow.com/questions/10905892/equivalent-of-gettimeday-for-windows
int gettimeofday(struct timeval *tp, struct timezone *tzp)
{
// Note: some broken versions only have 8 trailing zero's, the correct epoch has 9 trailing zero's
// This magic number is the number of 100 nanosecond intervals since January 1, 1601 (UTC)
// until 00:00:00 January 1, 1970
static const std::uint64_t EPOCH = ((std::uint64_t) 116444736000000000ULL);
SYSTEMTIME system_time;
FILETIME file_time;
std::uint64_t time;
GetSystemTime(&system_time);
SystemTimeToFileTime(&system_time, &file_time);
time = ((std::uint64_t)file_time.dwLowDateTime);
time += ((std::uint64_t)file_time.dwHighDateTime) << 32;
tp->tv_sec = (long)((time - EPOCH) / 10000000L);
tp->tv_usec = (long)(system_time.wMilliseconds * 1000);
return 0;
}
}
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