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<div class="titlepage"><div><div><h4 class="title">
<a name="asio.reference.io_service.use_service"></a><a class="link" href="use_service.html" title="io_service::use_service">io_service::use_service</a>
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<p>
<a class="indexterm" name="id994322"></a>
Obtain the service object corresponding to the given
type.
</p>
<pre class="programlisting"><span class="keyword">template</span><span class="special"><</span>
<span class="keyword">typename</span> <a class="link" href="../Service.html" title="Service requirements">Service</a><span class="special">></span>
<span class="keyword">friend</span> <span class="identifier">Service</span> <span class="special">&</span> <span class="identifier">use_service</span><span class="special">(</span>
<span class="identifier">io_service</span> <span class="special">&</span> <span class="identifier">ios</span><span class="special">);</span>
</pre>
<p>
This function is used to locate a service object that corresponds to the
given service type. If there is no existing implementation of the service,
then the <a class="link" href="../io_service.html" title="io_service"><code class="computeroutput"><span class="identifier">io_service</span></code></a>
will create a new instance of the service.
</p>
<a name="asio.reference.io_service.use_service.parameters"></a><h6>
<a name="id994442"></a>
<a class="link" href="use_service.html#asio.reference.io_service.use_service.parameters">Parameters</a>
</h6>
<div class="variablelist">
<p class="title"><b></b></p>
<dl>
<dt><span class="term">ios</span></dt>
<dd><p>
The <a class="link" href="../io_service.html" title="io_service"><code class="computeroutput"><span class="identifier">io_service</span></code></a>
object that owns the service.
</p></dd>
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<a name="asio.reference.io_service.use_service.return_value"></a><h6>
<a name="id994495"></a>
<a class="link" href="use_service.html#asio.reference.io_service.use_service.return_value">Return
Value</a>
</h6>
<p>
The service interface implementing the specified service type. Ownership
of the service interface is not transferred to the caller.
</p>
<a name="asio.reference.io_service.use_service.requirements"></a><h6>
<a name="id994520"></a>
<a class="link" href="use_service.html#asio.reference.io_service.use_service.requirements">Requirements</a>
</h6>
<p>
<span class="bold"><strong>Header: </strong></span><code class="literal">asio/io_service.hpp</code>
</p>
<p>
<span class="bold"><strong>Convenience header: </strong></span><code class="literal">asio.hpp</code>
</p>
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<td align="right"><div class="copyright-footer">Copyright © 2003 - 2010 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>)
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