Method waitUntil

include/common/async.h:60–62

  template <typename CT, typename DT>
  bool waitUntil(const std::chrono::time_point<CT, DT> &Timeout) const {
    return Future.wait_until(Timeout) == std::future_status::ready;
  }

  friend void swap(Async &LHS, Async &RHS) noexcept {
    using std::swap;