dsecnd_INT_CPU_TIME.cpp File Reference

#include <ctime>

Functions
double	dsecnd_ ()

Function Documentation

dsecnd_()

double dsecnd_

(

)

                 {
#ifdef _WIN32
  // For MSVC, use `GetProcessTimes` for proper CPU time - MSVC uses
  // a non-standard `std::clock` implementation (see
  // https://learn.microsoft.com/en-us/cpp/c-runtime-library/reference/clock?view=msvc-170).
  // GetProcessTimes() uses 100-nanosecond time units.
  FILETIME creation_time, exit_time, kernel_time, user_time;
  GetProcessTimes(GetCurrentProcess(), &creation_time, &exit_time, &kernel_time, &user_time);
  ULARGE_INTEGER user;
  user.HighPart = user_time.dwHighDateTime;
  user.LowPart = user_time.dwLowDateTime;
  uint64_t time_100ns = user.QuadPart;
  return static_cast<double>(time_100ns) / 10000000.0;
#else
  return static_cast<double>(std::clock()) / static_cast<double>(CLOCKS_PER_SEC);
#endif
}