></b></p>
<dl class="variablelist">
<dt><span class="term">command</span></dt>
<dd><p>
                  The IO control command to be performed on the socket.
                </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_datagram_socket.io_control.overload2.h1"></a>
            <span class="phrase"><a name="boost_asio.reference.basic_datagram_socket.io_cont