<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>io_context::strand::dispatch (1 of 2 overloads)</title> <link rel="stylesheet" href="../../../../boostbook.css" type="text/css"> <meta name="generator" content="DocBook XSL Stylesheets V1.75.2"> <link rel="home" href="../../../../index.html" title="Asio"> <link rel="up" href="../dispatch.html" title="io_context::strand::dispatch"> <link rel="prev" href="../dispatch.html" title="io_context::strand::dispatch"> <link rel="next" href="overload2.html" title="io_context::strand::dispatch (2 of 2 overloads)"> </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="../dispatch.html"><img src="../../../../prev.png" alt="Prev"></a><a accesskey="u" href="../dispatch.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="overload2.html"><img src="../../../../next.png" alt="Next"></a> </div> <div class="section"> <div class="titlepage"><div><div><h5 class="title"> <a name="asio.reference.io_context__strand.dispatch.overload1"></a><a class="link" href="overload1.html" title="io_context::strand::dispatch (1 of 2 overloads)">io_context::strand::dispatch (1 of 2 overloads)</a> </h5></div></div></div> <p> Request the strand to invoke the given function object. </p> <pre class="programlisting">template< typename Function, typename Allocator> void dispatch( Function && f, const Allocator & a) const; </pre> <p> This function is used to ask the strand to execute the given function object on its underlying <a class="link" href="../../io_context.html" title="io_context"><code class="computeroutput">io_context</code></a>. The function object will be executed inside this function if the strand is not otherwise busy and if the underlying io_context's executor's <code class="computeroutput">dispatch()</code> function is also able to execute the function before returning. </p> <h6> <a name="asio.reference.io_context__strand.dispatch.overload1.h0"></a> <span><a name="asio.reference.io_context__strand.dispatch.overload1.parameters"></a></span><a class="link" href="overload1.html#asio.reference.io_context__strand.dispatch.overload1.parameters">Parameters</a> </h6> <div class="variablelist"> <p class="title"><b></b></p> <dl> <dt><span class="term">f</span></dt> <dd> <p> The function object to be called. The executor will make a copy of the handler object as required. The function signature of the function object must be: </p> <pre class="programlisting">void function(); </pre> <p> </p> </dd> <dt><span class="term">a</span></dt> <dd><p> An allocator that may be used by the executor to allocate the internal storage needed for function invocation. </p></dd> </dl> </div> </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 © 2003-2020 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="../dispatch.html"><img src="../../../../prev.png" alt="Prev"></a><a accesskey="u" href="../dispatch.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="overload2.html"><img src="../../../../next.png" alt="Next"></a> </div> </body> </html>