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diff --git a/doc/html/boost_asio/overview/cpp2011/futures.html b/doc/html/boost_asio/overview/cpp2011/futures.html deleted file mode 100644 index e5714bd654..0000000000 --- a/doc/html/boost_asio/overview/cpp2011/futures.html +++ /dev/null @@ -1,82 +0,0 @@ -<html> -<head> -<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> -<title>Futures</title> -<link rel="stylesheet" href="../../../../../doc/src/boostbook.css" type="text/css"> -<meta name="generator" content="DocBook XSL Stylesheets V1.78.1"> -<link rel="home" href="../../../boost_asio.html" title="Boost.Asio"> -<link rel="up" href="../cpp2011.html" title="C++ 2011 Support"> -<link rel="prev" href="chrono.html" title="Chrono"> -<link rel="next" href="../implementation.html" title="Platform-Specific Implementation Notes"> -</head> -<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> -<table cellpadding="2" width="100%"><tr> -<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../boost.png"></td> -<td align="center"><a href="../../../../../index.html">Home</a></td> -<td align="center"><a href="../../../../../libs/libraries.htm">Libraries</a></td> -<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> -<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> -<td align="center"><a href="../../../../../more/index.htm">More</a></td> -</tr></table> -<hr> -<div class="spirit-nav"> -<a accesskey="p" href="chrono.html"><img src="../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../cpp2011.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="../implementation.html"><img src="../../../../../doc/src/images/next.png" alt="Next"></a> -</div> -<div class="section"> -<div class="titlepage"><div><div><h4 class="title"> -<a name="boost_asio.overview.cpp2011.futures"></a><a class="link" href="futures.html" title="Futures">Futures</a> -</h4></div></div></div> -<p> - The <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">asio</span><span class="special">::</span><span class="identifier">use_future</span></code> special value provides first-class - support for returning a C++11 <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">future</span></code> - from an asynchronous operation's initiating function. - </p> -<p> - To use <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">asio</span><span class="special">::</span><span class="identifier">use_future</span></code>, pass it to an asynchronous - operation instead of a normal completion handler. For example: - </p> -<pre class="programlisting"><span class="identifier">std</span><span class="special">::</span><span class="identifier">future</span><span class="special"><</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span><span class="special">></span> <span class="identifier">length</span> <span class="special">=</span> - <span class="identifier">my_socket</span><span class="special">.</span><span class="identifier">async_read_some</span><span class="special">(</span><span class="identifier">my_buffer</span><span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">asio</span><span class="special">::</span><span class="identifier">use_future</span><span class="special">);</span> -</pre> -<p> - Where a handler signature has the form: - </p> -<pre class="programlisting"><span class="keyword">void</span> <span class="identifier">handler</span><span class="special">(</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">system</span><span class="special">::</span><span class="identifier">error_code</span> <span class="identifier">ec</span><span class="special">,</span> <span class="identifier">result_type</span> <span class="identifier">result</span><span class="special">);</span> -</pre> -<p> - the initiating function returns a <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">future</span></code> - templated on <code class="computeroutput"><span class="identifier">result_type</span></code>. - In the above example, this is <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span></code>. - If the asynchronous operation fails, the <code class="computeroutput"><span class="identifier">error_code</span></code> - is converted into a <code class="computeroutput"><span class="identifier">system_error</span></code> - exception and passed back to the caller through the future. - </p> -<p> - Where a handler signature has the form: - </p> -<pre class="programlisting"><span class="keyword">void</span> <span class="identifier">handler</span><span class="special">(</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">system</span><span class="special">::</span><span class="identifier">error_code</span> <span class="identifier">ec</span><span class="special">);</span> -</pre> -<p> - the initiating function returns <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">future</span><span class="special"><</span><span class="keyword">void</span><span class="special">></span></code>. As above, an error is passed back - in the future as a <code class="computeroutput"><span class="identifier">system_error</span></code> - exception. - </p> -<p> - <a class="link" href="../../reference/use_future.html" title="use_future">use_future</a>, <a class="link" href="../../reference/use_future_t.html" title="use_future_t">use_future_t</a>, <a class="link" href="../../examples/cpp11_examples.html#boost_asio.examples.cpp11_examples.futures">Futures example (C++11)</a>. - </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 © 2003-2015 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="chrono.html"><img src="../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../cpp2011.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="../implementation.html"><img src="../../../../../doc/src/images/next.png" alt="Next"></a> -</div> -</body> -</html> |