1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>posix::basic_stream_descriptor::basic_stream_descriptor (4 of 5 overloads)</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="../basic_stream_descriptor.html" title="posix::basic_stream_descriptor::basic_stream_descriptor"> 9<link rel="prev" href="overload3.html" title="posix::basic_stream_descriptor::basic_stream_descriptor (3 of 5 overloads)"> 10<link rel="next" href="overload5.html" title="posix::basic_stream_descriptor::basic_stream_descriptor (5 of 5 overloads)"> 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="overload3.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../basic_stream_descriptor.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="overload5.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a> 24</div> 25<div class="section"> 26<div class="titlepage"><div><div><h5 class="title"> 27<a name="boost_asio.reference.posix__basic_stream_descriptor.basic_stream_descriptor.overload4"></a><a class="link" href="overload4.html" title="posix::basic_stream_descriptor::basic_stream_descriptor (4 of 5 overloads)">posix::basic_stream_descriptor::basic_stream_descriptor 28 (4 of 5 overloads)</a> 29</h5></div></div></div> 30<p> 31 Construct a stream descriptor on an existing native descriptor. 32 </p> 33<pre class="programlisting">template< 34 typename ExecutionContext> 35basic_stream_descriptor( 36 ExecutionContext & context, 37 const native_handle_type & native_descriptor, 38 typename enable_if< is_convertible< ExecutionContext &, execution_context & >::value >::type * = 0); 39</pre> 40<p> 41 This constructor creates a stream descriptor object to hold an existing 42 native descriptor. 43 </p> 44<h6> 45<a name="boost_asio.reference.posix__basic_stream_descriptor.basic_stream_descriptor.overload4.h0"></a> 46 <span class="phrase"><a name="boost_asio.reference.posix__basic_stream_descriptor.basic_stream_descriptor.overload4.parameters"></a></span><a class="link" href="overload4.html#boost_asio.reference.posix__basic_stream_descriptor.basic_stream_descriptor.overload4.parameters">Parameters</a> 47 </h6> 48<div class="variablelist"> 49<p class="title"><b></b></p> 50<dl class="variablelist"> 51<dt><span class="term">context</span></dt> 52<dd><p> 53 An execution context which provides the I/O executor that the descriptor 54 will use, by default, to dispatch handlers for any asynchronous 55 operations performed on the descriptor. 56 </p></dd> 57<dt><span class="term">native_descriptor</span></dt> 58<dd><p> 59 The new underlying descriptor implementation. 60 </p></dd> 61</dl> 62</div> 63<h6> 64<a name="boost_asio.reference.posix__basic_stream_descriptor.basic_stream_descriptor.overload4.h1"></a> 65 <span class="phrase"><a name="boost_asio.reference.posix__basic_stream_descriptor.basic_stream_descriptor.overload4.exceptions"></a></span><a class="link" href="overload4.html#boost_asio.reference.posix__basic_stream_descriptor.basic_stream_descriptor.overload4.exceptions">Exceptions</a> 66 </h6> 67<div class="variablelist"> 68<p class="title"><b></b></p> 69<dl class="variablelist"> 70<dt><span class="term">boost::system::system_error</span></dt> 71<dd><p> 72 Thrown on failure. 73 </p></dd> 74</dl> 75</div> 76</div> 77<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 78<td align="left"></td> 79<td align="right"><div class="copyright-footer">Copyright © 2003-2020 Christopher M. 80 Kohlhoff<p> 81 Distributed under the Boost Software License, Version 1.0. (See accompanying 82 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>) 83 </p> 84</div></td> 85</tr></table> 86<hr> 87<div class="spirit-nav"> 88<a accesskey="p" href="overload3.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../basic_stream_descriptor.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="overload5.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a> 89</div> 90</body> 91</html> 92
