<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> <title>basic_socket_streambuf::linger</title> <link rel="stylesheet" href="../../../boostbook.css" type="text/css"> <meta name="generator" content="DocBook XSL Stylesheets V1.73.2"> <link rel="start" href="../../../index.html" title="Asio"> <link rel="up" href="../basic_socket_streambuf.html" title="basic_socket_streambuf"> <link rel="prev" href="keep_alive.html" title="basic_socket_streambuf::keep_alive"> <link rel="next" href="local_endpoint.html" title="basic_socket_streambuf::local_endpoint"> </head> <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> <table cellpadding="2" width="100%"><tr><td valign="top"><img alt="asio C++ library" width="250" height="60" src="../../../asio.png"></td></tr></table> <hr> <div class="spirit-nav"> <a accesskey="p" href="keep_alive.html"><img src="../../../prev.png" alt="Prev"></a><a accesskey="u" href="../basic_socket_streambuf.html"><img src="../../../up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../home.png" alt="Home"></a><a accesskey="n" href="local_endpoint.html"><img src="../../../next.png" alt="Next"></a> </div> <div class="section" lang="en"> <div class="titlepage"><div><div><h4 class="title"> <a name="asio.reference.basic_socket_streambuf.linger"></a><a class="link" href="linger.html" title="basic_socket_streambuf::linger"> basic_socket_streambuf::linger</a> </h4></div></div></div> <p> <span class="emphasis"><em>Inherited from socket_base.</em></span> </p> <p> <a class="indexterm" name="id745688"></a> Socket option to specify whether the socket lingers on close if unsent data is present. </p> <pre class="programlisting"><span class="keyword">typedef</span> <span class="identifier">implementation_defined</span> <span class="identifier">linger</span><span class="special">;</span> </pre> <p> Implements the SOL_SOCKET/SO_LINGER socket option. </p> <a name="asio.reference.basic_socket_streambuf.linger.examples"></a><h6> <a name="id745735"></a> <a class="link" href="linger.html#asio.reference.basic_socket_streambuf.linger.examples">Examples</a> </h6> <p> Setting the option: </p> <pre class="programlisting"><span class="identifier">asio</span><span class="special">::</span><span class="identifier">ip</span><span class="special">::</span><span class="identifier">tcp</span><span class="special">::</span><span class="identifier">socket</span> <span class="identifier">socket</span><span class="special">(</span><span class="identifier">io_service</span><span class="special">);</span> <span class="special">...</span> <span class="identifier">asio</span><span class="special">::</span><span class="identifier">socket_base</span><span class="special">::</span><span class="identifier">linger</span> <span class="identifier">option</span><span class="special">(</span><span class="keyword">true</span><span class="special">,</span> <span class="number">30</span><span class="special">);</span> <span class="identifier">socket</span><span class="special">.</span><span class="identifier">set_option</span><span class="special">(</span><span class="identifier">option</span><span class="special">);</span> </pre> <p> Getting the current option value: </p> <pre class="programlisting"><span class="identifier">asio</span><span class="special">::</span><span class="identifier">ip</span><span class="special">::</span><span class="identifier">tcp</span><span class="special">::</span><span class="identifier">socket</span> <span class="identifier">socket</span><span class="special">(</span><span class="identifier">io_service</span><span class="special">);</span> <span class="special">...</span> <span class="identifier">asio</span><span class="special">::</span><span class="identifier">socket_base</span><span class="special">::</span><span class="identifier">linger</span> <span class="identifier">option</span><span class="special">;</span> <span class="identifier">socket</span><span class="special">.</span><span class="identifier">get_option</span><span class="special">(</span><span class="identifier">option</span><span class="special">);</span> <span class="keyword">bool</span> <span class="identifier">is_set</span> <span class="special">=</span> <span class="identifier">option</span><span class="special">.</span><span class="identifier">enabled</span><span class="special">();</span> <span class="keyword">unsigned</span> <span class="keyword">short</span> <span class="identifier">timeout</span> <span class="special">=</span> <span class="identifier">option</span><span class="special">.</span><span class="identifier">timeout</span><span class="special">();</span> </pre> <a name="asio.reference.basic_socket_streambuf.linger.requirements"></a><h6> <a name="id746110"></a> <a class="link" href="linger.html#asio.reference.basic_socket_streambuf.linger.requirements">Requirements</a> </h6> <p> <span class="bold"><strong>Header: </strong></span><code class="literal">asio/basic_socket_streambuf.hpp</code> </p> <p> <span class="bold"><strong>Convenience header: </strong></span><code class="literal">asio.hpp</code> </p> </div> <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> <td align="left"></td> <td align="right"><div class="copyright-footer">Copyright © 2003 - 2010 Christopher M. Kohlhoff<p> Distributed under the Boost Software License, Version 1.0. (See accompanying 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>) </p> </div></td> </tr></table> <hr> <div class="spirit-nav"> <a accesskey="p" href="keep_alive.html"><img src="../../../prev.png" alt="Prev"></a><a accesskey="u" href="../basic_socket_streambuf.html"><img src="../../../up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../home.png" alt="Home"></a><a accesskey="n" href="local_endpoint.html"><img src="../../../next.png" alt="Next"></a> </div> </body> </html>