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<div id="projectname">coreMQTT<span id="projectnumber"> v2.2.0</span>
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<div id="projectbrief">MQTT 3.1.1 Client Library</div>
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<div><div class="header">
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<div class="headertitle"><div class="title">MQTT_GetDisconnectPacketSize </div></div>
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<div class="textblock"><div class="fragment"><div class="line"><a class="code hl_enumeration" href="group__mqtt__enum__types.html#gaba7ec045874a1c3432f99173367f735c">MQTTStatus_t</a> <a class="code hl_function" href="core__mqtt__serializer_8h.html#a6fdd8cbde6b7c4ff85c20aaca0fd8741">MQTT_GetDisconnectPacketSize</a>( <span class="keywordtype">size_t</span> * pPacketSize );</div>
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<div class="ttc" id="acore__mqtt__serializer_8h_html_a6fdd8cbde6b7c4ff85c20aaca0fd8741"><div class="ttname"><a href="core__mqtt__serializer_8h.html#a6fdd8cbde6b7c4ff85c20aaca0fd8741">MQTT_GetDisconnectPacketSize</a></div><div class="ttdeci">MQTTStatus_t MQTT_GetDisconnectPacketSize(size_t *pPacketSize)</div><div class="ttdoc">Get the size of an MQTT DISCONNECT packet.</div><div class="ttdef"><b>Definition:</b> core_mqtt_serializer.c:2321</div></div>
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<div class="ttc" id="agroup__mqtt__enum__types_html_gaba7ec045874a1c3432f99173367f735c"><div class="ttname"><a href="group__mqtt__enum__types.html#gaba7ec045874a1c3432f99173367f735c">MQTTStatus_t</a></div><div class="ttdeci">MQTTStatus_t</div><div class="ttdoc">Return codes from MQTT functions.</div><div class="ttdef"><b>Definition:</b> core_mqtt_serializer.h:87</div></div>
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</div><!-- fragment --><p>Get the size of an MQTT DISCONNECT packet. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramdir">[out]</td><td class="paramname">pPacketSize</td><td>The size of the MQTT DISCONNECT packet.</td></tr>
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<dl class="section return"><dt>Returns</dt><dd><a class="el" href="group__mqtt__enum__types.html#ggaba7ec045874a1c3432f99173367f735ca484e062cb4f3fccc1858dd25cfeee056">MQTTSuccess</a>, or <a class="el" href="group__mqtt__enum__types.html#ggaba7ec045874a1c3432f99173367f735caa39030c93b0263b2699502a074f003b5">MQTTBadParameter</a> if <code>pPacketSize</code> is NULL.</dd></dl>
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<p><b>Example</b> </p><div class="fragment"><div class="line"><span class="comment">// Variables used in this example.</span></div>
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<div class="line"><a class="code hl_enumeration" href="group__mqtt__enum__types.html#gaba7ec045874a1c3432f99173367f735c">MQTTStatus_t</a> status;</div>
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<div class="line"><span class="keywordtype">size_t</span> packetSize = 0;</div>
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<div class="line"> </div>
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<div class="line"><span class="comment">// Get the size requirement for the disconnect packet.</span></div>
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<div class="line">status = <a class="code hl_function" href="core__mqtt__serializer_8h.html#a6fdd8cbde6b7c4ff85c20aaca0fd8741">MQTT_GetDisconnectPacketSize</a>( &packetSize );</div>
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<div class="line">assert( status == <a class="code hl_enumvalue" href="group__mqtt__enum__types.html#ggaba7ec045874a1c3432f99173367f735ca484e062cb4f3fccc1858dd25cfeee056">MQTTSuccess</a> );</div>
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<div class="line">assert( packetSize == 2 );</div>
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<div class="line"> </div>
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<div class="line"><span class="comment">// The application should allocate or use a static #MQTTFixedBuffer_t of</span></div>
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<div class="line"><span class="comment">// size >= 2 to serialize the disconnect packet.</span></div>
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<div class="ttc" id="agroup__mqtt__enum__types_html_ggaba7ec045874a1c3432f99173367f735ca484e062cb4f3fccc1858dd25cfeee056"><div class="ttname"><a href="group__mqtt__enum__types.html#ggaba7ec045874a1c3432f99173367f735ca484e062cb4f3fccc1858dd25cfeee056">MQTTSuccess</a></div><div class="ttdeci">@ MQTTSuccess</div><div class="ttdef"><b>Definition:</b> core_mqtt_serializer.h:88</div></div>
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