ill_message</code> != <code>NULL</code>), MQTT_CONNECT_WILL_QOS_[0,1,2], and whether or not the broker should retain the <code>will_message</code>, MQTT_CONNECT_WILL_RETAIN. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">keep_alive</td><td>The keep-alive time in seconds. A reasonable value for this is 400 [seconds].</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd><code>MQTT_OK</code> upon success, an <a class="el" href="group__api.html#gad0c901a8d306