Method check_deadline

example/cpp11/timeouts/server.cpp:302–327

  }

  void check_deadline(steady_timer& deadline)
  {
    auto self(shared_from_this());
    deadline.async_wait(
        [this, self, &deadline](const boost::system::error_code& /*error*/)
        {
          // Check if the session was stopped while the operation was pending.
          if (stopped())
            return;

          // Check whether the deadline has passed. We compare the deadline
          // against the current time since a new asynchronous operation may
          // have moved the deadline before this actor had a chance to run.
          if (deadline.expiry() <= steady_timer::clock_type::now())
          {
            // The deadline has passed. Stop the session. The other actors will
            // terminate as soon as possible.
            stop();
          }
          else
          {
            // Put the actor back to sleep.
            check_deadline(deadline);
          }
        });
  }

  channel& channel_;
  tcp::socket socket_;