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<div class="headertitle"><div class="title">Socket option definitions<div class="ingroups"><a class="el" href="group___a_p_r.html">Apache Portability Runtime library</a> » <a class="el" href="group__apr__network__io.html">Network Routines</a></div></div></div>
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Collaboration diagram for Socket option definitions:</div>
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Macros</h2></td></tr>
<tr class="memitem:ga6a807e7b78937ab74a4fcd6e99d76669" id="r_ga6a807e7b78937ab74a4fcd6e99d76669"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__sockopt.html#ga6a807e7b78937ab74a4fcd6e99d76669">APR_SO_LINGER</a>   1</td></tr>
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<tr class="memitem:ga0c54c5b98593d9ad2f8cc8836da7eae5" id="r_ga0c54c5b98593d9ad2f8cc8836da7eae5"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__sockopt.html#ga0c54c5b98593d9ad2f8cc8836da7eae5">APR_SO_KEEPALIVE</a>   2</td></tr>
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<tr class="memitem:ga2b30d26f69059692e97a59ec1d6db73b" id="r_ga2b30d26f69059692e97a59ec1d6db73b"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__sockopt.html#ga2b30d26f69059692e97a59ec1d6db73b">APR_SO_DEBUG</a>   4</td></tr>
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<tr class="memitem:gac3bf19cc28b43da9b9dc396c84914a0f" id="r_gac3bf19cc28b43da9b9dc396c84914a0f"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__sockopt.html#gac3bf19cc28b43da9b9dc396c84914a0f">APR_SO_NONBLOCK</a>   8</td></tr>
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<tr class="memitem:ga90434074950efa1383d7c5649026a159" id="r_ga90434074950efa1383d7c5649026a159"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__sockopt.html#ga90434074950efa1383d7c5649026a159">APR_SO_REUSEADDR</a>   16</td></tr>
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<tr class="memitem:ga0e7ef8d3785eec5210ede9fd309db35f" id="r_ga0e7ef8d3785eec5210ede9fd309db35f"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__sockopt.html#ga0e7ef8d3785eec5210ede9fd309db35f">APR_SO_SNDBUF</a>   64</td></tr>
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<tr class="memitem:ga4ab9494893075c8db6ac26a997f41f0e" id="r_ga4ab9494893075c8db6ac26a997f41f0e"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__sockopt.html#ga4ab9494893075c8db6ac26a997f41f0e">APR_SO_RCVBUF</a>   128</td></tr>
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<tr class="memitem:ga5fd72839e254ddec03ffb624c21fa564" id="r_ga5fd72839e254ddec03ffb624c21fa564"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__sockopt.html#ga5fd72839e254ddec03ffb624c21fa564">APR_SO_DISCONNECTED</a>   256</td></tr>
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<tr class="memitem:ga24db924d850dea792e92be7f8bc45cbd" id="r_ga24db924d850dea792e92be7f8bc45cbd"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__sockopt.html#ga24db924d850dea792e92be7f8bc45cbd">APR_TCP_NODELAY</a>   512</td></tr>
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<tr class="memitem:ga7679a9e3114815eb6c31d26db707975d" id="r_ga7679a9e3114815eb6c31d26db707975d"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__sockopt.html#ga7679a9e3114815eb6c31d26db707975d">APR_TCP_NOPUSH</a>   1024</td></tr>
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<tr class="memitem:gac9ee12e841eefaf86fabaae4a298adea" id="r_gac9ee12e841eefaf86fabaae4a298adea"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__sockopt.html#gac9ee12e841eefaf86fabaae4a298adea">APR_RESET_NODELAY</a>   2048</td></tr>
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<tr class="memitem:ga73b6c80791c5148c2a416e03a8a1ff8a" id="r_ga73b6c80791c5148c2a416e03a8a1ff8a"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__sockopt.html#ga73b6c80791c5148c2a416e03a8a1ff8a">APR_INCOMPLETE_READ</a>   4096</td></tr>
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<tr class="memitem:ga0c1544983845bf747b4a2a3facfb45e9" id="r_ga0c1544983845bf747b4a2a3facfb45e9"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__sockopt.html#ga0c1544983845bf747b4a2a3facfb45e9">APR_INCOMPLETE_WRITE</a>   8192</td></tr>
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<tr class="memitem:gae1126f69a19a23c484e3292b016375df" id="r_gae1126f69a19a23c484e3292b016375df"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__sockopt.html#gae1126f69a19a23c484e3292b016375df">APR_IPV6_V6ONLY</a>   16384</td></tr>
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<tr class="memitem:gaa81adac9b40a87f1d4c0c2f037e9af78" id="r_gaa81adac9b40a87f1d4c0c2f037e9af78"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__sockopt.html#gaa81adac9b40a87f1d4c0c2f037e9af78">APR_TCP_DEFER_ACCEPT</a>   32768</td></tr>
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<tr class="memitem:ga6d86c537799f60d68d2016563beef15b" id="r_ga6d86c537799f60d68d2016563beef15b"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__sockopt.html#ga6d86c537799f60d68d2016563beef15b">APR_SO_BROADCAST</a>   65536</td></tr>
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<tr class="memitem:ga3e873ecb577af3c70736e762358858d9" id="r_ga3e873ecb577af3c70736e762358858d9"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__sockopt.html#ga3e873ecb577af3c70736e762358858d9">APR_SO_FREEBIND</a>   131072</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<h2 class="groupheader">Macro Definition Documentation</h2>
<a id="ga73b6c80791c5148c2a416e03a8a1ff8a" name="ga73b6c80791c5148c2a416e03a8a1ff8a"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga73b6c80791c5148c2a416e03a8a1ff8a">◆ </a></span>APR_INCOMPLETE_READ</h2>
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<td class="memname">#define APR_INCOMPLETE_READ   4096</td>
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<p>Set on non-blocking sockets (timeout != 0) on which the previous read() did not fill a buffer completely. the next <a class="el" href="group__apr__network__io.html#gaa6ee00191f197f64b5a5409f4aff53d1">apr_socket_recv()</a> will first call select()/poll() rather than going straight into read(). (Can also be set by an application to force a select()/poll() call before the next read, in cases where the app expects that an immediate read would fail.) </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ga0c1544983845bf747b4a2a3facfb45e9">◆ </a></span>APR_INCOMPLETE_WRITE</h2>
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<td class="memname">#define APR_INCOMPLETE_WRITE   8192</td>
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<p>like APR_INCOMPLETE_READ, but for write </p><dl class="section see"><dt>See also</dt><dd><a class="el" href="group__apr__sockopt.html#ga73b6c80791c5148c2a416e03a8a1ff8a">APR_INCOMPLETE_READ</a> </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#gae1126f69a19a23c484e3292b016375df">◆ </a></span>APR_IPV6_V6ONLY</h2>
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<td class="memname">#define APR_IPV6_V6ONLY   16384</td>
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<p>Don't accept IPv4 connections on an IPv6 listening socket. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#gac9ee12e841eefaf86fabaae4a298adea">◆ </a></span>APR_RESET_NODELAY</h2>
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<td class="memname">#define APR_RESET_NODELAY   2048</td>
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<p>This flag is ONLY set internally when we set APR_TCP_NOPUSH with APR_TCP_NODELAY set to tell us that APR_TCP_NODELAY should be turned on again when NOPUSH is turned off </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ga6d86c537799f60d68d2016563beef15b">◆ </a></span>APR_SO_BROADCAST</h2>
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<td class="memname">#define APR_SO_BROADCAST   65536</td>
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<p>Allow broadcast </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ga2b30d26f69059692e97a59ec1d6db73b">◆ </a></span>APR_SO_DEBUG</h2>
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<td class="memname">#define APR_SO_DEBUG   4</td>
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<p>Debug </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ga5fd72839e254ddec03ffb624c21fa564">◆ </a></span>APR_SO_DISCONNECTED</h2>
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<td class="memname">#define APR_SO_DISCONNECTED   256</td>
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<p>Disconnected </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ga3e873ecb577af3c70736e762358858d9">◆ </a></span>APR_SO_FREEBIND</h2>
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<td class="memname">#define APR_SO_FREEBIND   131072</td>
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<p>Allow binding to addresses not owned by any interface </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ga0c54c5b98593d9ad2f8cc8836da7eae5">◆ </a></span>APR_SO_KEEPALIVE</h2>
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<td class="memname">#define APR_SO_KEEPALIVE   2</td>
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<p>Keepalive </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ga6a807e7b78937ab74a4fcd6e99d76669">◆ </a></span>APR_SO_LINGER</h2>
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<td class="memname">#define APR_SO_LINGER   1</td>
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<p>Linger </p>
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<h2 class="memtitle"><span class="permalink"><a href="#gac3bf19cc28b43da9b9dc396c84914a0f">◆ </a></span>APR_SO_NONBLOCK</h2>
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<td class="memname">#define APR_SO_NONBLOCK   8</td>
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<p>Non-blocking IO </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ga4ab9494893075c8db6ac26a997f41f0e">◆ </a></span>APR_SO_RCVBUF</h2>
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<td class="memname">#define APR_SO_RCVBUF   128</td>
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<p>Receive buffer </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ga90434074950efa1383d7c5649026a159">◆ </a></span>APR_SO_REUSEADDR</h2>
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<td class="memname">#define APR_SO_REUSEADDR   16</td>
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<p>Reuse addresses </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ga0e7ef8d3785eec5210ede9fd309db35f">◆ </a></span>APR_SO_SNDBUF</h2>
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<td class="memname">#define APR_SO_SNDBUF   64</td>
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<p>Send buffer </p>
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<h2 class="memtitle"><span class="permalink"><a href="#gaa81adac9b40a87f1d4c0c2f037e9af78">◆ </a></span>APR_TCP_DEFER_ACCEPT</h2>
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<td class="memname">#define APR_TCP_DEFER_ACCEPT   32768</td>
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<p>Delay accepting of new connections until data is available. </p><dl class="section see"><dt>See also</dt><dd><a class="el" href="group__apr__network__io.html#ga270b7c0835283fa2b85a05d295dd7ee5">apr_socket_accept_filter</a> </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#ga24db924d850dea792e92be7f8bc45cbd">◆ </a></span>APR_TCP_NODELAY</h2>
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<td class="memname">#define APR_TCP_NODELAY   512</td>
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<p>For SCTP sockets, this is mapped to STCP_NODELAY internally. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ga7679a9e3114815eb6c31d26db707975d">◆ </a></span>APR_TCP_NOPUSH</h2>
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<td class="memname">#define APR_TCP_NOPUSH   1024</td>
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<p>No push </p>
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