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<a href="#define-members">Macros</a> &#124;
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<div class="headertitle"><div class="title">mqtt.c File Reference</div></div>
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<div class="textblock"><code>#include &quot;<a class="el" href="mqtt_8h.html">lwip/apps/mqtt.h</a>&quot;</code><br />
<code>#include &quot;<a class="el" href="mqtt__priv_8h.html">lwip/apps/mqtt_priv.h</a>&quot;</code><br />
<code>#include &quot;<a class="el" href="timeouts_8h.html">lwip/timeouts.h</a>&quot;</code><br />
<code>#include &quot;<a class="el" href="ip__addr_8h.html">lwip/ip_addr.h</a>&quot;</code><br />
<code>#include &quot;<a class="el" href="mem_8h.html">lwip/mem.h</a>&quot;</code><br />
<code>#include &quot;<a class="el" href="err_8h.html">lwip/err.h</a>&quot;</code><br />
<code>#include &quot;<a class="el" href="pbuf_8h.html">lwip/pbuf.h</a>&quot;</code><br />
<code>#include &quot;<a class="el" href="altcp_8h.html">lwip/altcp.h</a>&quot;</code><br />
<code>#include &quot;<a class="el" href="altcp__tcp_8h.html">lwip/altcp_tcp.h</a>&quot;</code><br />
<code>#include &quot;<a class="el" href="altcp__tls_8h.html">lwip/altcp_tls.h</a>&quot;</code><br />
<code>#include &lt;string.h&gt;</code><br />
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Macros</h2></td></tr>
<tr class="memitem:a99c325e06cc17ee24e09dab251606f9d" id="r_a99c325e06cc17ee24e09dab251606f9d"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#a99c325e06cc17ee24e09dab251606f9d">MQTT_DEBUG</a>&#160;&#160;&#160;<a class="el" href="group__debugging__levels.html#gadab1cdc3f45939a3a5c9a3d7e04987e1">LWIP_DBG_OFF</a></td></tr>
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<tr class="memitem:a45c57ebd31832f1c128d847067c4688b" id="r_a45c57ebd31832f1c128d847067c4688b"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#a45c57ebd31832f1c128d847067c4688b">MQTT_CTL_PACKET_TYPE</a>(fixed_hdr_byte0)</td></tr>
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<tr class="memitem:afba101fbf26b556c869060d3d013c8fa" id="r_afba101fbf26b556c869060d3d013c8fa"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#afba101fbf26b556c869060d3d013c8fa">mqtt_ringbuf_free</a>(rb)</td></tr>
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<tr class="memitem:ad82b4039213ab3f1d9e4bcd3aa0c88a3" id="r_ad82b4039213ab3f1d9e4bcd3aa0c88a3"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#ad82b4039213ab3f1d9e4bcd3aa0c88a3">mqtt_ringbuf_linear_read_length</a>(rb)</td></tr>
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Enumerations</h2></td></tr>
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<tr class="memitem:ac243cf15beb51b2206e36da86c2f95f1" id="r_ac243cf15beb51b2206e36da86c2f95f1"><td class="memItemLeft" align="right" valign="top">enum &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#ac243cf15beb51b2206e36da86c2f95f1">mqtt_message_type</a> </td></tr>
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Functions</h2></td></tr>
<tr class="memitem:gade9850d716e81fde572cb012be795d2f" id="r_gade9850d716e81fde572cb012be795d2f"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__infrastructure__errors.html#gaf02d9da80fd66b4f986d2c53d7231ddb">err_t</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__mqtt.html#gade9850d716e81fde572cb012be795d2f">mqtt_publish</a> (<a class="el" href="structmqtt__client__s.html">mqtt_client_t</a> *client, const char *topic, const void *payload, u16_t payload_length, u8_t qos, u8_t retain, <a class="el" href="group__mqtt.html#gacad2bbe2cee76eaa120cc63e2f6094fd">mqtt_request_cb_t</a> cb, void *arg)</td></tr>
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<tr class="memitem:gac4bbe55b05232776d15b9a3b41cf43e7" id="r_gac4bbe55b05232776d15b9a3b41cf43e7"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structmqtt__client__s.html">mqtt_client_t</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__mqtt.html#gac4bbe55b05232776d15b9a3b41cf43e7">mqtt_client_new</a> (void)</td></tr>
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<tr class="memitem:gaa0fa1d985c322a9c91a51322db254882" id="r_gaa0fa1d985c322a9c91a51322db254882"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__mqtt.html#gaa0fa1d985c322a9c91a51322db254882">mqtt_client_free</a> (<a class="el" href="structmqtt__client__s.html">mqtt_client_t</a> *client)</td></tr>
<tr class="separator:gaa0fa1d985c322a9c91a51322db254882"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gadf4d2a3f1b12fb6cbc020b126f3125f0" id="r_gadf4d2a3f1b12fb6cbc020b126f3125f0"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__infrastructure__errors.html#gaf02d9da80fd66b4f986d2c53d7231ddb">err_t</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__mqtt.html#gadf4d2a3f1b12fb6cbc020b126f3125f0">mqtt_client_connect</a> (<a class="el" href="structmqtt__client__s.html">mqtt_client_t</a> *client, const <a class="el" href="group__ipaddr.html#ga335a8c9df66319e88a1a529047ce0a1e">ip_addr_t</a> *<a class="el" href="structip__addr.html">ip_addr</a>, u16_t port, <a class="el" href="group__mqtt.html#ga8558743bdb7d599a93844fbc56c9029f">mqtt_connection_cb_t</a> cb, void *arg, const struct <a class="el" href="structmqtt__connect__client__info__t.html">mqtt_connect_client_info_t</a> *client_info)</td></tr>
<tr class="separator:gadf4d2a3f1b12fb6cbc020b126f3125f0"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga73d8dd718bce09bfaab452770b4f76e6" id="r_ga73d8dd718bce09bfaab452770b4f76e6"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__mqtt.html#ga73d8dd718bce09bfaab452770b4f76e6">mqtt_disconnect</a> (<a class="el" href="structmqtt__client__s.html">mqtt_client_t</a> *client)</td></tr>
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<tr class="memitem:ga98f0fd168112b8b7db59bcd7a325a5c5" id="r_ga98f0fd168112b8b7db59bcd7a325a5c5"><td class="memItemLeft" align="right" valign="top">u8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__mqtt.html#ga98f0fd168112b8b7db59bcd7a325a5c5">mqtt_client_is_connected</a> (<a class="el" href="structmqtt__client__s.html">mqtt_client_t</a> *client)</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>MQTT client </p>
</div><h2 class="groupheader">Macro Definition Documentation</h2>
<a id="a45c57ebd31832f1c128d847067c4688b" name="a45c57ebd31832f1c128d847067c4688b"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a45c57ebd31832f1c128d847067c4688b">&#9670;&#160;</a></span>MQTT_CTL_PACKET_TYPE</h2>
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<td class="memname">#define MQTT_CTL_PACKET_TYPE</td>
<td>(</td>
<td class="paramtype"></td> <td class="paramname"><span class="paramname"><em>fixed_hdr_byte0</em></span></td><td>)</td>
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<b>Value:</b><div class="fragment"><div class="line">((fixed_hdr_byte0 &amp; 0xf0) &gt;&gt; 4)</div>
</div><!-- fragment --><p>Helpers to extract control packet type and qos from first byte in fixed header </p>
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<a id="a99c325e06cc17ee24e09dab251606f9d" name="a99c325e06cc17ee24e09dab251606f9d"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a99c325e06cc17ee24e09dab251606f9d">&#9670;&#160;</a></span>MQTT_DEBUG</h2>
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<td class="memname">#define MQTT_DEBUG&#160;&#160;&#160;<a class="el" href="group__debugging__levels.html#gadab1cdc3f45939a3a5c9a3d7e04987e1">LWIP_DBG_OFF</a></td>
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<p>MQTT_DEBUG: Default is off. </p>
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<a id="afba101fbf26b556c869060d3d013c8fa" name="afba101fbf26b556c869060d3d013c8fa"></a>
<h2 class="memtitle"><span class="permalink"><a href="#afba101fbf26b556c869060d3d013c8fa">&#9670;&#160;</a></span>mqtt_ringbuf_free</h2>
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<td class="memname">#define mqtt_ringbuf_free</td>
<td>(</td>
<td class="paramtype"></td> <td class="paramname"><span class="paramname"><em>rb</em></span></td><td>)</td>
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<b>Value:</b><div class="fragment"><div class="line">(<a class="code hl_define" href="group__mqtt__opts.html#ga70627bafaffa071875cee9edc38d942b">MQTT_OUTPUT_RINGBUF_SIZE</a> - mqtt_ringbuf_len(rb))</div>
<div class="ttc" id="agroup__mqtt__opts_html_ga70627bafaffa071875cee9edc38d942b"><div class="ttname"><a href="group__mqtt__opts.html#ga70627bafaffa071875cee9edc38d942b">MQTT_OUTPUT_RINGBUF_SIZE</a></div><div class="ttdeci">#define MQTT_OUTPUT_RINGBUF_SIZE</div><div class="ttdef"><b>Definition</b> mqtt_opts.h:56</div></div>
</div><!-- fragment --><p>Return number of bytes free in ring buffer </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ad82b4039213ab3f1d9e4bcd3aa0c88a3">&#9670;&#160;</a></span>mqtt_ringbuf_linear_read_length</h2>
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<td class="memname">#define mqtt_ringbuf_linear_read_length</td>
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<td class="paramtype"></td> <td class="paramname"><span class="paramname"><em>rb</em></span></td><td>)</td>
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<b>Value:</b><div class="fragment"><div class="line">LWIP_MIN(mqtt_ringbuf_len(rb), (<a class="code hl_define" href="group__mqtt__opts.html#ga70627bafaffa071875cee9edc38d942b">MQTT_OUTPUT_RINGBUF_SIZE</a> - (rb)-&gt;get))</div>
</div><!-- fragment --><p>Return number of bytes possible to read without wrapping around </p>
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<h2 class="groupheader">Enumeration Type Documentation</h2>
<a id="a06fc87d81c62e9abb8790b6e5713c55b" name="a06fc87d81c62e9abb8790b6e5713c55b"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a06fc87d81c62e9abb8790b6e5713c55b">&#9670;&#160;</a></span>anonymous enum</h2>
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<td class="memname">anonymous enum</td>
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<p>MQTT client connection states </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a4f6c42ed730546ff755e3bb99989dd12">&#9670;&#160;</a></span>mqtt_connect_flag</h2>
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<td class="memname">enum <a class="el" href="#a4f6c42ed730546ff755e3bb99989dd12">mqtt_connect_flag</a></td>
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<p>MQTT connect flags, only used in CONNECT message </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ac243cf15beb51b2206e36da86c2f95f1">&#9670;&#160;</a></span>mqtt_message_type</h2>
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<td class="memname">enum <a class="el" href="#ac243cf15beb51b2206e36da86c2f95f1">mqtt_message_type</a></td>
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<p>MQTT control message types </p>
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