uteroutput">boost::asio::error::would_block</code> if they
                  are unable to perform the requested operation immediately. If
                  <code class="computeroutput">false</code>, synchronous operations will block until complete.
                </p></dd>
<dt><span class="term">ec</span></dt>
<dd><p>
                  Set to indicate what error occurred, if any.
                </p></dd>
</dl>
</div>
<h6>
<a name="boost_asio.reference.basic_seq_packet_socket.non_blocking.overload3.h1"></