rem: int ret = usleep(second * 1000000 + nanoseconds / 1000);
add: ret = usleep(second * 1000000 + nanoseconds / 1000);
context: int kvu_sleep(long int seconds, long int nanoseconds){  int ret = 0;#ifdef HAVE_NANOSLEEP  struct timespec len;  len.tv_sec = static_cast<time_t>(seconds);  len.tv_nsec = nanoseconds;  ret = nanosleep(&len, NULL);#elif HAVE_USLEEP  int ret = usleep(second * 1000000 + nanoseconds / 1000);#else  std::cerr << "(libkvutils) kvutils:: warning! neither nanosleep() or usleep() found!" << std::endl;#endif  return(ret);}