1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>io_context::run_for</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="../io_context.html" title="io_context"> 9<link rel="prev" href="run/overload2.html" title="io_context::run (2 of 2 overloads)"> 10<link rel="next" href="run_one.html" title="io_context::run_one"> 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="run/overload2.html"><img src="../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../io_context.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="run_one.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.io_context.run_for"></a><a class="link" href="run_for.html" title="io_context::run_for">io_context::run_for</a> 28</h4></div></div></div> 29<p> 30 <a class="indexterm" name="boost_asio.indexterm.io_context.run_for"></a> 31Run the <a class="link" href="../io_context.html" title="io_context"><code class="computeroutput">io_context</code></a> 32 object's event processing loop for a specified duration. 33 </p> 34<pre class="programlisting">template< 35 typename Rep, 36 typename Period> 37std::size_t run_for( 38 const chrono::duration< Rep, Period > & rel_time); 39</pre> 40<p> 41 The <code class="computeroutput">run_for()</code> function blocks until all work has finished 42 and there are no more handlers to be dispatched, until the <a class="link" href="../io_context.html" title="io_context"><code class="computeroutput">io_context</code></a> 43 has been stopped, or until the specified duration has elapsed. 44 </p> 45<h6> 46<a name="boost_asio.reference.io_context.run_for.h0"></a> 47 <span class="phrase"><a name="boost_asio.reference.io_context.run_for.parameters"></a></span><a class="link" href="run_for.html#boost_asio.reference.io_context.run_for.parameters">Parameters</a> 48 </h6> 49<div class="variablelist"> 50<p class="title"><b></b></p> 51<dl class="variablelist"> 52<dt><span class="term">rel_time</span></dt> 53<dd><p> 54 The duration for which the call may block. 55 </p></dd> 56</dl> 57</div> 58<h6> 59<a name="boost_asio.reference.io_context.run_for.h1"></a> 60 <span class="phrase"><a name="boost_asio.reference.io_context.run_for.return_value"></a></span><a class="link" href="run_for.html#boost_asio.reference.io_context.run_for.return_value">Return Value</a> 61 </h6> 62<p> 63 The number of handlers that were executed. 64 </p> 65</div> 66<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 67<td align="left"></td> 68<td align="right"><div class="copyright-footer">Copyright © 2003-2020 Christopher M. 69 Kohlhoff<p> 70 Distributed under the Boost Software License, Version 1.0. (See accompanying 71 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>) 72 </p> 73</div></td> 74</tr></table> 75<hr> 76<div class="spirit-nav"> 77<a accesskey="p" href="run/overload2.html"><img src="../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../io_context.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="run_one.html"><img src="../../../../../doc/src/images/next.png" alt="Next"></a> 78</div> 79</body> 80</html> 81
