Function gettimeofday_double

client/hslongrun.cpp:78–86

};

double
gettimeofday_double()
{
  struct timeval tv = { };
  if (gettimeofday(&tv, 0) != 0) {
    fatal_abort("gettimeofday");
  }
  return static_cast<double>(tv.tv_usec) / 1000000 + tv.tv_sec;
}

struct record_value {
  mutex lock;