1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>posix::descriptor_base</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="../reference.html" title="Reference"> 9<link rel="prev" href="posix__descriptor.html" title="posix::descriptor"> 10<link rel="next" href="posix__descriptor_base/bytes_readable.html" title="posix::descriptor_base::bytes_readable"> 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 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28</h3></div></div></div> 29<p> 30 The <a class="link" href="posix__descriptor_base.html" title="posix::descriptor_base"><code class="computeroutput">posix::descriptor_base</code></a> 31 class is used as a base for the descriptor class as a place to define the 32 associated IO control commands. 33 </p> 34<pre class="programlisting">class descriptor_base 35</pre> 36<h5> 37<a name="boost_asio.reference.posix__descriptor_base.h0"></a> 38 <span class="phrase"><a name="boost_asio.reference.posix__descriptor_base.types"></a></span><a class="link" href="posix__descriptor_base.html#boost_asio.reference.posix__descriptor_base.types">Types</a> 39 </h5> 40<div class="informaltable"><table class="table"> 41<colgroup> 42<col> 43<col> 44</colgroup> 45<thead><tr> 46<th> 47 <p> 48 Name 49 </p> 50 </th> 51<th> 52 <p> 53 Description 54 </p> 55 </th> 56</tr></thead> 57<tbody> 58<tr> 59<td> 60 <p> 61 <a class="link" href="posix__descriptor_base/bytes_readable.html" title="posix::descriptor_base::bytes_readable"><span class="bold"><strong>bytes_readable</strong></span></a> 62 </p> 63 </td> 64<td> 65 <p> 66 IO control command to get the amount of data that can be read without 67 blocking. 68 </p> 69 </td> 70</tr> 71<tr> 72<td> 73 <p> 74 <a class="link" href="posix__descriptor_base/wait_type.html" title="posix::descriptor_base::wait_type"><span class="bold"><strong>wait_type</strong></span></a> 75 </p> 76 </td> 77<td> 78 <p> 79 Wait types. 80 </p> 81 </td> 82</tr> 83</tbody> 84</table></div> 85<h5> 86<a name="boost_asio.reference.posix__descriptor_base.h1"></a> 87 <span class="phrase"><a name="boost_asio.reference.posix__descriptor_base.protected_member_functions"></a></span><a class="link" href="posix__descriptor_base.html#boost_asio.reference.posix__descriptor_base.protected_member_functions">Protected 88 Member Functions</a> 89 </h5> 90<div class="informaltable"><table class="table"> 91<colgroup> 92<col> 93<col> 94</colgroup> 95<thead><tr> 96<th> 97 <p> 98 Name 99 </p> 100 </th> 101<th> 102 <p> 103 Description 104 </p> 105 </th> 106</tr></thead> 107<tbody><tr> 108<td> 109 <p> 110 <a class="link" href="posix__descriptor_base/_descriptor_base.html" title="posix::descriptor_base::~descriptor_base"><span class="bold"><strong>~descriptor_base</strong></span></a> <span class="silver">[destructor]</span> 111 </p> 112 </td> 113<td> 114 <p> 115 Protected destructor to prevent deletion through this type. 116 </p> 117 </td> 118</tr></tbody> 119</table></div> 120<h5> 121<a name="boost_asio.reference.posix__descriptor_base.h2"></a> 122 <span class="phrase"><a name="boost_asio.reference.posix__descriptor_base.requirements"></a></span><a class="link" href="posix__descriptor_base.html#boost_asio.reference.posix__descriptor_base.requirements">Requirements</a> 123 </h5> 124<p> 125 <span class="emphasis"><em>Header: </em></span><code class="literal">boost/asio/posix/descriptor_base.hpp</code> 126 </p> 127<p> 128 <span class="emphasis"><em>Convenience header: </em></span><code class="literal">boost/asio.hpp</code> 129 </p> 130</div> 131<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 132<td align="left"></td> 133<td align="right"><div class="copyright-footer">Copyright © 2003-2020 Christopher M. 134 Kohlhoff<p> 135 Distributed under the Boost Software License, Version 1.0. (See accompanying 136 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>) 137 </p> 138</div></td> 139</tr></table> 140<hr> 141<div class="spirit-nav"> 142<a accesskey="p" href="posix__descriptor.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../reference.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="posix__descriptor_base/bytes_readable.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> 143</div> 144</body> 145</html> 146
