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<div id="projectname">lwIP
&#160;<span id="projectnumber">2.1.2</span>
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<div id="projectbrief">Lightweight IP stack</div>
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<a href="#define-members">Macros</a> &#124;
<a href="#func-members">Functions</a> </div>
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<div class="title">sockets.h File Reference</div> </div>
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<div class="textblock"><code>#include &quot;<a class="el" href="opt_8h.html">lwip/opt.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="netif_8h.html">lwip/netif.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="lwip_2inet_8h.html">lwip/inet.h</a>&quot;</code><br />
<code>#include &quot;<a class="el" href="lwip_2errno_8h.html">lwip/errno.h</a>&quot;</code><br />
<code>#include &lt;string.h&gt;</code><br />
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="define-members"></a>
Macros</h2></td></tr>
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<tr class="memitem:gade2b17671b5a4b18e941fbf7e1060310"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__socket.html#gade2b17671b5a4b18e941fbf7e1060310">accept</a>(s, addr, addrlen)&#160;&#160;&#160;lwip_accept(s,addr,addrlen)</td></tr>
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<tr class="memitem:ga862d8f4070c66dddb979540ce9ba6a83"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__socket.html#ga862d8f4070c66dddb979540ce9ba6a83">socket</a>(domain, type, protocol)&#160;&#160;&#160;lwip_socket(domain,type,protocol)</td></tr>
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<tr class="memitem:gac332b9b9b2cd877a6189ef838de49e33"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__socket.html#gac332b9b9b2cd877a6189ef838de49e33">select</a>(maxfdp1, readset, writeset, exceptset, timeout)&#160;&#160;&#160;lwip_select(maxfdp1,readset,writeset,exceptset,timeout)</td></tr>
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<tr class="memitem:ga80ae38841b0e64e60618cd8bf857f617"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__socket.html#ga80ae38841b0e64e60618cd8bf857f617">poll</a>(fds, nfds, timeout)&#160;&#160;&#160;lwip_poll(fds,nfds,timeout)</td></tr>
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<tr class="memitem:ga822040573319cf87bfe6758d511be57f"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__socket.html#ga822040573319cf87bfe6758d511be57f">read</a>(s, <a class="el" href="structmem.html">mem</a>, len)&#160;&#160;&#160;lwip_read(s,<a class="el" href="structmem.html">mem</a>,len)</td></tr>
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</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:a0a250b3b4d1827e3a3661327f5e80ae0"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="sockets_8h.html#a0a250b3b4d1827e3a3661327f5e80ae0">lwip_socket_thread_init</a> (void)</td></tr>
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<tr class="memitem:ab8cd92b10dbe3fb33da03faed1ea98a7"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="sockets_8h.html#ab8cd92b10dbe3fb33da03faed1ea98a7">lwip_socket_thread_cleanup</a> (void)</td></tr>
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<tr class="memitem:ade85c68b6673296c8fb67127b93fa4c1"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="sockets_8h.html#ade85c68b6673296c8fb67127b93fa4c1">lwip_shutdown</a> (int s, int how)</td></tr>
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<tr class="memitem:abee6ee286147cf334a1ba19f19b2e08b"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="sockets_8h.html#abee6ee286147cf334a1ba19f19b2e08b">lwip_listen</a> (int s, int backlog)</td></tr>
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</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Socket API (to be used from non-TCPIP threads) </p>
</div><h2 class="groupheader">Macro Definition Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#aaffd64f6887883ec6401e6bb684c40fa">&#9670;&nbsp;</a></span>LWIP_TIMEVAL_PRIVATE</h2>
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<td class="memname">#define LWIP_TIMEVAL_PRIVATE&#160;&#160;&#160;1</td>
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<p>LWIP_TIMEVAL_PRIVATE: if you want to use the struct timeval provided by your system, set this to 0 and include &lt;sys/time.h&gt; in cc.h </p>
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<h2 class="groupheader">Function Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#ae84296093574ec746f8f88321356388f">&#9670;&nbsp;</a></span>lwip_fcntl()</h2>
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<td class="memname">int lwip_fcntl </td>
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<td class="paramtype">int&#160;</td>
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<td class="paramtype">int&#160;</td>
<td class="paramname"><em>cmd</em>, </td>
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<td class="paramtype">int&#160;</td>
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<p>A minimal implementation of fcntl. Currently only the commands F_GETFL and F_SETFL are implemented. The flag O_NONBLOCK and access modes are supported for F_GETFL, only the flag O_NONBLOCK is implemented for F_SETFL. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#abee6ee286147cf334a1ba19f19b2e08b">&#9670;&nbsp;</a></span>lwip_listen()</h2>
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<td class="memname">int lwip_listen </td>
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<td class="paramtype">int&#160;</td>
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<p>Set a socket into listen mode. The socket may not have been used for another connection previously.</p>
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<tr><td class="paramname">s</td><td>the socket to set to listening mode </td></tr>
<tr><td class="paramname">backlog</td><td>(ATTENTION: needs TCP_LISTEN_BACKLOG=1) </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>0 on success, non-zero on failure </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#ade85c68b6673296c8fb67127b93fa4c1">&#9670;&nbsp;</a></span>lwip_shutdown()</h2>
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<td class="memname">int lwip_shutdown </td>
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<p>Close one end of a full-duplex connection. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ab8cd92b10dbe3fb33da03faed1ea98a7">&#9670;&nbsp;</a></span>lwip_socket_thread_cleanup()</h2>
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<td class="memname">void lwip_socket_thread_cleanup </td>
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<p>LWIP_NETCONN_SEM_PER_THREAD==1: destroy thread-local semaphore </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a0a250b3b4d1827e3a3661327f5e80ae0">&#9670;&nbsp;</a></span>lwip_socket_thread_init()</h2>
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<td class="memname">void lwip_socket_thread_init </td>
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<p>LWIP_NETCONN_SEM_PER_THREAD==1: initialize thread-local semaphore </p>
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