1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>socket_base::linger</title> 5<link rel="stylesheet" href="../../../../../doc/src/boostbook.css" type="text/css"> 6<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> 7<link rel="home" href="../../../boost_asio.html" title="Boost.Asio"> 8<link rel="up" href="../socket_base.html" title="socket_base"> 9<link rel="prev" href="keep_alive.html" title="socket_base::keep_alive"> 10<link rel="next" href="max_connections.html" title="socket_base::max_connections"> 11</head> 12<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 13<table cellpadding="2" width="100%"><tr> 14<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../boost.png"></td> 15<td align="center"><a href="../../../../../index.html">Home</a></td> 16<td align="center"><a href="../../../../../libs/libraries.htm">Libraries</a></td> 17<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> 18<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> 19<td align="center"><a href="../../../../../more/index.htm">More</a></td> 20</tr></table> 21<hr> 22<div class="spirit-nav"> 23<a accesskey="p" href="keep_alive.html"><img src="../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../socket_base.html"><img src="../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../../boost_asio.html"><img src="../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="max_connections.html"><img src="../../../../../doc/src/images/next.png" alt="Next"></a> 24</div> 25<div class="section"> 26<div class="titlepage"><div><div><h4 class="title"> 27<a name="boost_asio.reference.socket_base.linger"></a><a class="link" href="linger.html" title="socket_base::linger">socket_base::linger</a> 28</h4></div></div></div> 29<p> 30 <a class="indexterm" name="boost_asio.indexterm.socket_base.linger"></a> 31Socket option to 32 specify whether the socket lingers on close if unsent data is present. 33 </p> 34<pre class="programlisting">typedef implementation_defined linger; 35</pre> 36<p> 37 Implements the SOL_SOCKET/SO_LINGER socket option. 38 </p> 39<h6> 40<a name="boost_asio.reference.socket_base.linger.h0"></a> 41 <span class="phrase"><a name="boost_asio.reference.socket_base.linger.examples"></a></span><a class="link" href="linger.html#boost_asio.reference.socket_base.linger.examples">Examples</a> 42 </h6> 43<p> 44 Setting the option: 45 </p> 46<pre class="programlisting">boost::asio::ip::tcp::socket socket(my_context); 47... 48boost::asio::socket_base::linger option(true, 30); 49socket.set_option(option); 50</pre> 51<p> 52 Getting the current option value: 53 </p> 54<pre class="programlisting">boost::asio::ip::tcp::socket socket(my_context); 55... 56boost::asio::socket_base::linger option; 57socket.get_option(option); 58bool is_set = option.enabled(); 59unsigned short timeout = option.timeout(); 60</pre> 61<h6> 62<a name="boost_asio.reference.socket_base.linger.h1"></a> 63 <span class="phrase"><a name="boost_asio.reference.socket_base.linger.requirements"></a></span><a class="link" href="linger.html#boost_asio.reference.socket_base.linger.requirements">Requirements</a> 64 </h6> 65<p> 66 <span class="emphasis"><em>Header: </em></span><code class="literal">boost/asio/socket_base.hpp</code> 67 </p> 68<p> 69 <span class="emphasis"><em>Convenience header: </em></span><code class="literal">boost/asio.hpp</code> 70 </p> 71</div> 72<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 73<td align="left"></td> 74<td align="right"><div class="copyright-footer">Copyright © 2003-2020 Christopher M. 75 Kohlhoff<p> 76 Distributed under the Boost Software License, Version 1.0. (See accompanying 77 file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>) 78 </p> 79</div></td> 80</tr></table> 81<hr> 82<div class="spirit-nav"> 83<a accesskey="p" href="keep_alive.html"><img src="../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../socket_base.html"><img src="../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../../boost_asio.html"><img src="../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="max_connections.html"><img src="../../../../../doc/src/images/next.png" alt="Next"></a> 84</div> 85</body> 86</html> 87
