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<title>Class current_thread_id</title>
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<a name="boost.log.attributes.current_thread_id"></a><div class="titlepage"></div>
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<h2><span class="refentrytitle">Class current_thread_id</span></h2>
<p>boost::log::attributes::current_thread_id — A class of an attribute that always returns the current thread identifier. </p>
</div>
<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: <<a class="link" href="../../../attributes.html#header.boost.log.attributes.current_thread_id_hpp" title="Header <boost/log/attributes/current_thread_id.hpp>">boost/log/attributes/current_thread_id.hpp</a>>
</span>
<span class="keyword">class</span> <a class="link" href="current_thread_id.html" title="Class current_thread_id">current_thread_id</a> <span class="special">:</span> <span class="keyword">public</span> <span class="identifier">attribute</span> <span class="special">{</span>
<span class="keyword">public</span><span class="special">:</span>
<span class="comment">// types</span>
<span class="keyword">typedef</span> <span class="identifier">thread_id</span> <a name="boost.log.attributes.current_thread_id.value_type"></a><span class="identifier">value_type</span><span class="special">;</span> <span class="comment">// A held attribute value type. </span>
<span class="comment">// member classes/structs/unions</span>
<span class="comment">// Factory implementation.</span>
<span class="keyword">class</span> <a class="link" href="current_thread_id/impl.html" title="Class impl">impl</a> <span class="special">:</span> <span class="keyword">public</span> <span class="identifier">attribute_value</span><span class="special">::</span><span class="identifier">impl</span> <span class="special">{</span>
<span class="keyword">public</span><span class="special">:</span>
<span class="comment">// <a class="link" href="current_thread_id/impl.html#idp42002448-bb">public member functions</a></span>
<span class="keyword">virtual</span> <span class="keyword">bool</span> <a class="link" href="current_thread_id/impl.html#idp42003008-bb"><span class="identifier">dispatch</span></a><span class="special">(</span><span class="identifier">type_dispatcher</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span>
<span class="keyword">virtual</span> <span class="identifier">intrusive_ptr</span><span class="special"><</span> <a class="link" href="../attribute_value/impl.html" title="Struct impl">attribute_value::impl</a> <span class="special">></span> <a class="link" href="current_thread_id/impl.html#idp42006928-bb"><span class="identifier">detach_from_thread</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
<span class="keyword">virtual</span> <span class="identifier">type_info_wrapper</span> <a class="link" href="current_thread_id/impl.html#idp42010016-bb"><span class="identifier">get_type</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
<span class="special">}</span><span class="special">;</span>
<span class="comment">// <a class="link" href="current_thread_id.html#boost.log.attributes.current_thread_idconstruct-copy-destruct">construct/copy/destruct</a></span>
<a class="link" href="current_thread_id.html#idp42014288-bb"><span class="identifier">current_thread_id</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
<span class="keyword">explicit</span> <a class="link" href="current_thread_id.html#idp42014992-bb"><span class="identifier">current_thread_id</span></a><span class="special">(</span><a class="link" href="cast_source.html" title="Class cast_source">cast_source</a> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span>
<span class="special">}</span><span class="special">;</span></pre></div>
<div class="refsect1">
<a name="idp107166576"></a><h2>Description</h2>
<div class="note"><table border="0" summary="Note">
<tr>
<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../../../../../doc/src/images/note.png"></td>
<th align="left">Note</th>
</tr>
<tr><td align="left" valign="top"><p>This attribute can be registered globally, it will still return the correct thread identifier, no matter which thread emits the log record. </p></td></tr>
</table></div>
<p>
</p>
<div class="refsect2">
<a name="idp107167792"></a><h3>
<a name="boost.log.attributes.current_thread_idconstruct-copy-destruct"></a><code class="computeroutput">current_thread_id</code>
public
construct/copy/destruct</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
<pre class="literallayout"><a name="idp42014288-bb"></a><span class="identifier">current_thread_id</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>
<p>Default constructor </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">explicit</span> <a name="idp42014992-bb"></a><span class="identifier">current_thread_id</span><span class="special">(</span><a class="link" href="cast_source.html" title="Class cast_source">cast_source</a> <span class="keyword">const</span> <span class="special">&</span> source<span class="special">)</span><span class="special">;</span></pre>
<p>Constructor for casting support </p>
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<td align="right"><div class="copyright-footer">Copyright © 2007-2015 Andrey
Semashev<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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