int _tmain(int argc, _TCHAR* argv[])
{
const int time_span = 16 * 4;
std::chrono::system_clock::time_point wake_up_time;
Director dr;
while (dr.work)
{
dr.proc();
wake_up_time = std::chrono::system_clock::now() + std::chrono::milliseconds(time_span);
while (std::chrono::system_clock::now() < wake_up_time)
std::this_thread::sleep_for(std::chrono::milliseconds(1));
}
return 0;
}
