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<p><code>#include &lt;api.h&gt;</code></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-attribs"></a>
Data Fields</h2></td></tr>
<tr class="memitem:a61af908d1d2e4e7345ac65d3b390d7b6"><td class="memItemLeft" align="right" valign="top">enum <a class="el" href="group__netconn__common.html#gaaba260d28d105fb4bce9185fd0300d91">netconn_type</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structnetconn.html#a61af908d1d2e4e7345ac65d3b390d7b6">type</a></td></tr>
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<tr class="memitem:a936c33090ec35e5e8c0011be5515a589"><td class="memItemLeft" align="right" valign="top">enum <a class="el" href="api_8h.html#a2c6c9c1869f443c5ec7b31180a44fada">netconn_state</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structnetconn.html#a936c33090ec35e5e8c0011be5515a589">state</a></td></tr>
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<tr class="memitem:a2af6773c9f6ee91e7f462dd8acc07de6"><td class="memItemLeft" >union {</td></tr>
<tr class="memitem:a2af6773c9f6ee91e7f462dd8acc07de6"><td class="memItemLeft" valign="top">}&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structnetconn.html#a2af6773c9f6ee91e7f462dd8acc07de6">pcb</a></td></tr>
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<tr class="memitem:a982506698a59f185ff3f16d1675ea4ae"><td class="memItemLeft" align="right" valign="top">sys_sem_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structnetconn.html#a982506698a59f185ff3f16d1675ea4ae">op_completed</a></td></tr>
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<tr class="memitem:a9f2bf6a3865b6a22a8a71ec2f3e770da"><td class="memItemLeft" align="right" valign="top">sys_mbox_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structnetconn.html#a9f2bf6a3865b6a22a8a71ec2f3e770da">recvmbox</a></td></tr>
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<tr class="memitem:ac8e05eb65774665e364a3dcf0f139b36"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structnetconn.html#ac8e05eb65774665e364a3dcf0f139b36">socket</a></td></tr>
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<tr class="memitem:a05b15a28b0803bea3729b1da2047541e"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structnetconn.html#a05b15a28b0803bea3729b1da2047541e">recv_avail</a></td></tr>
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<tr class="memitem:a25ed06d944da0b0b9e7db5265be3fa3d"><td class="memItemLeft" align="right" valign="top">s16_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structnetconn.html#a25ed06d944da0b0b9e7db5265be3fa3d">linger</a></td></tr>
<tr class="separator:a25ed06d944da0b0b9e7db5265be3fa3d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a96cb9a3830248699bd07a1a447e5630c"><td class="memItemLeft" align="right" valign="top">u8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structnetconn.html#a96cb9a3830248699bd07a1a447e5630c">flags</a></td></tr>
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<tr class="memitem:a49ba09038b2f2563fd3a38e38f8b8ab9"><td class="memItemLeft" align="right" valign="top">struct <a class="el" href="structapi__msg.html">api_msg</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structnetconn.html#a49ba09038b2f2563fd3a38e38f8b8ab9">current_msg</a></td></tr>
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<tr class="memitem:abe796060bb06e585333ca9a87862b624"><td class="memItemLeft" align="right" valign="top"><a class="el" href="api_8h.html#a3e130339f00202b3ab714af502163a2d">netconn_callback</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structnetconn.html#abe796060bb06e585333ca9a87862b624">callback</a></td></tr>
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</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>A netconn descriptor </p>
</div><h2 class="groupheader">Field Documentation</h2>
<a id="a9b59188f300828d2b5814e27ab27cad0"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a9b59188f300828d2b5814e27ab27cad0">&#9670;&nbsp;</a></span>acceptmbox</h2>

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          <td class="memname">sys_mbox_t netconn::acceptmbox</td>
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<p>mbox where new connections are stored until processed by the application thread </p>

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<a id="abe796060bb06e585333ca9a87862b624"></a>
<h2 class="memtitle"><span class="permalink"><a href="#abe796060bb06e585333ca9a87862b624">&#9670;&nbsp;</a></span>callback</h2>

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          <td class="memname"><a class="el" href="api_8h.html#a3e130339f00202b3ab714af502163a2d">netconn_callback</a> netconn::callback</td>
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<p>A callback function that is informed about events for this netconn </p>

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<a id="a49ba09038b2f2563fd3a38e38f8b8ab9"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a49ba09038b2f2563fd3a38e38f8b8ab9">&#9670;&nbsp;</a></span>current_msg</h2>

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          <td class="memname">struct <a class="el" href="structapi__msg.html">api_msg</a>* netconn::current_msg</td>
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<p>TCP: when data passed to netconn_write doesn't fit into the send buffer, this temporarily stores the message. Also used during connect and close. </p>

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<a id="a96cb9a3830248699bd07a1a447e5630c"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a96cb9a3830248699bd07a1a447e5630c">&#9670;&nbsp;</a></span>flags</h2>

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          <td class="memname">u8_t netconn::flags</td>
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<p>flags holding more netconn-internal state, see NETCONN_FLAG_* defines </p>

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<a id="a25ed06d944da0b0b9e7db5265be3fa3d"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a25ed06d944da0b0b9e7db5265be3fa3d">&#9670;&nbsp;</a></span>linger</h2>

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          <td class="memname">s16_t netconn::linger</td>
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<p>values &lt;0 mean linger is disabled, values &gt; 0 are seconds to linger </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a982506698a59f185ff3f16d1675ea4ae">&#9670;&nbsp;</a></span>op_completed</h2>

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<p>sem that is used to synchronously execute functions in the core context </p>

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<a id="a2af6773c9f6ee91e7f462dd8acc07de6"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a2af6773c9f6ee91e7f462dd8acc07de6">&#9670;&nbsp;</a></span>pcb</h2>

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          <td class="memname">union { ... }   netconn::pcb</td>
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<p>the lwIP internal protocol control block </p>

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<a id="a2a54e90fa370cf0df46dfd0b97f1cce7"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a2a54e90fa370cf0df46dfd0b97f1cce7">&#9670;&nbsp;</a></span>pending_err</h2>

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          <td class="memname"><a class="el" href="group__infrastructure__errors.html#gaf02d9da80fd66b4f986d2c53d7231ddb">err_t</a> netconn::pending_err</td>
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<p>the last asynchronous unreported error this netconn had </p>

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<a id="a05b15a28b0803bea3729b1da2047541e"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a05b15a28b0803bea3729b1da2047541e">&#9670;&nbsp;</a></span>recv_avail</h2>

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          <td class="memname">int netconn::recv_avail</td>
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<p>number of bytes currently in recvmbox to be received, tested against recv_bufsize to limit bytes on recvmbox for UDP and RAW, used for FIONREAD </p>

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<a id="a6febc9717418ddba16f16e988061cfac"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a6febc9717418ddba16f16e988061cfac">&#9670;&nbsp;</a></span>recv_bufsize</h2>

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          <td class="memname">int netconn::recv_bufsize</td>
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<p>maximum amount of bytes queued in recvmbox not used for TCP: adjust TCP_WND instead! </p>

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<a id="a9f2bf6a3865b6a22a8a71ec2f3e770da"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a9f2bf6a3865b6a22a8a71ec2f3e770da">&#9670;&nbsp;</a></span>recvmbox</h2>

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<p>mbox where received packets are stored until they are fetched by the netconn application thread (can grow quite big) </p>

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<a id="a44e55724482b8e447134f5ba4f01551a"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a44e55724482b8e447134f5ba4f01551a">&#9670;&nbsp;</a></span>send_timeout</h2>

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          <td class="memname">s32_t netconn::send_timeout</td>
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<p>timeout to wait for sending data (which means enqueueing data for sending in internal buffers) in milliseconds </p>

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<h2 class="memtitle"><span class="permalink"><a href="#ac8e05eb65774665e364a3dcf0f139b36">&#9670;&nbsp;</a></span>socket</h2>

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<p>only used for socket layer </p>

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<a id="a936c33090ec35e5e8c0011be5515a589"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a936c33090ec35e5e8c0011be5515a589">&#9670;&nbsp;</a></span>state</h2>

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          <td class="memname">enum <a class="el" href="api_8h.html#a2c6c9c1869f443c5ec7b31180a44fada">netconn_state</a> netconn::state</td>
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<p>current state of the netconn </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a61af908d1d2e4e7345ac65d3b390d7b6">&#9670;&nbsp;</a></span>type</h2>

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          <td class="memname">enum <a class="el" href="group__netconn__common.html#gaaba260d28d105fb4bce9185fd0300d91">netconn_type</a> netconn::type</td>
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<p>type of the netconn (TCP, UDP or RAW) </p>

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<hr/>The documentation for this struct was generated from the following file:<ul>
<li>src/include/lwip/<a class="el" href="api_8h.html">api.h</a></li>
</ul>
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