 address or port for instance.</p>
<p>To enable messages to be published when the application is disconnected <a class="el" href="_m_q_t_t_async_8h.html#a78cbe1b851fea48001112f7ba9e4ea62">MQTTAsync_createWithOptions</a> must be used instead of <a class="el" href="_m_q_t_t_async_8h.html#a5462c4618d0a229116db5fbadacf95d2">MQTTAsync_create</a> to create the client object. The <a class="el" href="struct_m_q_t_t_async__create_options.html">MQTTAsync_createOptions</a> field sendWhileDisconnected must be set to no