<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>system_context::make_service</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="../system_context.html" title="system_context"> <link rel="prev" href="join.html" title="system_context::join"> <link rel="next" href="notify_fork.html" title="system_context::notify_fork"> </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="join.html"><img src="../../../prev.png" alt="Prev"></a><a accesskey="u" href="../system_context.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="notify_fork.html"><img src="../../../next.png" alt="Next"></a> </div> <div class="section"> <div class="titlepage"><div><div><h4 class="title"> <a name="asio.reference.system_context.make_service"></a><a class="link" href="make_service.html" title="system_context::make_service">system_context::make_service</a> </h4></div></div></div> <p> <span class="emphasis"><em>Inherited from execution_context.</em></span> </p> <p> <a class="indexterm" name="asio.indexterm.system_context.make_service"></a> Creates a service object and adds it to the <a class="link" href="../execution_context.html" title="execution_context"><code class="computeroutput">execution_context</code></a>. </p> <pre class="programlisting">template< typename <a class="link" href="../Service.html" title="Service requirements">Service</a>, typename... Args> friend Service & make_service( execution_context & e, Args &&... args); </pre> <p> This function is used to add a service to the <a class="link" href="../execution_context.html" title="execution_context"><code class="computeroutput">execution_context</code></a>. </p> <h6> <a name="asio.reference.system_context.make_service.h0"></a> <span><a name="asio.reference.system_context.make_service.parameters"></a></span><a class="link" href="make_service.html#asio.reference.system_context.make_service.parameters">Parameters</a> </h6> <div class="variablelist"> <p class="title"><b></b></p> <dl> <dt><span class="term">e</span></dt> <dd><p> The <a class="link" href="../execution_context.html" title="execution_context"><code class="computeroutput">execution_context</code></a> object that owns the service. </p></dd> <dt><span class="term">args</span></dt> <dd><p> Zero or more arguments to be passed to the service constructor. </p></dd> </dl> </div> <h6> <a name="asio.reference.system_context.make_service.h1"></a> <span><a name="asio.reference.system_context.make_service.exceptions"></a></span><a class="link" href="make_service.html#asio.reference.system_context.make_service.exceptions">Exceptions</a> </h6> <div class="variablelist"> <p class="title"><b></b></p> <dl> <dt><span class="term">asio::service_already_exists</span></dt> <dd><p> Thrown if a service of the given type is already present in the <a class="link" href="../execution_context.html" title="execution_context"><code class="computeroutput">execution_context</code></a>. </p></dd> </dl> </div> <h6> <a name="asio.reference.system_context.make_service.h2"></a> <span><a name="asio.reference.system_context.make_service.requirements"></a></span><a class="link" href="make_service.html#asio.reference.system_context.make_service.requirements">Requirements</a> </h6> <p> <span class="emphasis"><em>Header: </em></span><code class="literal">asio/system_context.hpp</code> </p> <p> <span class="emphasis"><em>Convenience header: </em></span><code class="literal">asio.hpp</code> </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 © 2003-2020 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="join.html"><img src="../../../prev.png" alt="Prev"></a><a accesskey="u" href="../system_context.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="notify_fork.html"><img src="../../../next.png" alt="Next"></a> </div> </body> </html>