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<title>Class template basic_channel_logger</title>
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<a name="boost.log.sources.basic_channel_logger"></a><div class="titlepage"></div>
<div class="refnamediv">
<h2><span class="refentrytitle">Class template basic_channel_logger</span></h2>
<p>boost::log::sources::basic_channel_logger &#8212; Channel feature implementation. </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: &lt;<a class="link" href="../../../logging_sources.html#header.boost.log.sources.channel_feature_hpp" title="Header &lt;boost/log/sources/channel_feature.hpp&gt;">boost/log/sources/channel_feature.hpp</a>&gt;
</span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> BaseT<span class="special">,</span> <span class="keyword">typename</span> ChannelT<span class="special">&gt;</span>
<span class="keyword">class</span> <a class="link" href="basic_channel_logger.html" title="Class template basic_channel_logger">basic_channel_logger</a> <span class="special">:</span> <span class="keyword">public</span> <span class="identifier">BaseT</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">base_type</span><span class="special">::</span><span class="identifier">char_type</span> <a name="boost.log.sources.basic_channel_logger.char_type"></a><span class="identifier">char_type</span><span class="special">;</span> <span class="comment">// Character type. </span>
<span class="keyword">typedef</span> <span class="identifier">base_type</span><span class="special">::</span><span class="identifier">final_type</span> <a name="boost.log.sources.basic_channel_logger.final_type"></a><span class="identifier">final_type</span><span class="special">;</span> <span class="comment">// Final type. </span>
<span class="keyword">typedef</span> <span class="identifier">base_type</span><span class="special">::</span><span class="identifier">threading_model</span> <a name="boost.log.sources.basic_channel_logger.threading_model"></a><span class="identifier">threading_model</span><span class="special">;</span> <span class="comment">// Threading model being used. </span>
<span class="keyword">typedef</span> <span class="identifier">ChannelT</span> <a name="boost.log.sources.basic_channel_logger.channel_type"></a><span class="identifier">channel_type</span><span class="special">;</span> <span class="comment">// Channel type. </span>
<span class="keyword">typedef</span> <span class="identifier">attributes</span><span class="special">::</span><span class="identifier">mutable_constant</span><span class="special">&lt;</span> <span class="identifier">channel_type</span> <span class="special">&gt;</span> <a name="boost.log.sources.basic_channel_logger.channel_attribute"></a><span class="identifier">channel_attribute</span><span class="special">;</span> <span class="comment">// Channel attribute type. </span>
<span class="keyword">typedef</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a name="boost.log.sources.basic_channel_logger.open_record_lock"></a><span class="identifier">open_record_lock</span><span class="special">;</span> <span class="comment">// Lock requirement for the <code class="computeroutput">open_record_unlocked</code> method. </span>
<span class="keyword">typedef</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a name="boost.log.sources.basic_channel_logger.swap_lock"></a><span class="identifier">swap_lock</span><span class="special">;</span> <span class="comment">// Lock requirement for the <code class="computeroutput">swap_unlocked</code> method. </span>
<span class="comment">// member classes/structs/unions</span>
<span class="comment">// Default channel name generator.</span>
<span class="keyword">struct</span> <a class="link" href="basic_channel_logger/make_default_channel_name.html" title="Struct make_default_channel_name">make_default_channel_name</a> <span class="special">{</span>
<span class="comment">// types</span>
<span class="keyword">typedef</span> <span class="identifier">channel_type</span> <a class="link" href="basic_channel_logger/make_default_channel_name.html#boost.log.sources.basic_channel_logger.make_default_channel_name.result_type"><span class="identifier">result_type</span></a><span class="special">;</span>
<span class="comment">// <a class="link" href="basic_channel_logger/make_default_channel_name.html#idp41367056-bb">public member functions</a></span>
<span class="identifier">result_type</span> <a class="link" href="basic_channel_logger/make_default_channel_name.html#idp41367616-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</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="basic_channel_logger.html#boost.log.sources.basic_channel_loggerconstruct-copy-destruct">construct/copy/destruct</a></span>
<a class="link" href="basic_channel_logger.html#idp41383824-bb"><span class="identifier">basic_channel_logger</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
<a class="link" href="basic_channel_logger.html#idp41384592-bb"><span class="identifier">basic_channel_logger</span></a><span class="special">(</span><a class="link" href="basic_channel_logger.html" title="Class template basic_channel_logger">basic_channel_logger</a> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
<a class="link" href="basic_channel_logger.html#idp41386272-bb"><span class="identifier">basic_channel_logger</span></a><span class="special">(</span><a class="link" href="basic_channel_logger.html" title="Class template basic_channel_logger">basic_channel_logger</a> <span class="special">&amp;&amp;</span><span class="special">)</span><span class="special">;</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ArgsT<span class="special">&gt;</span> <span class="keyword">explicit</span> <a class="link" href="basic_channel_logger.html#idp41387952-bb"><span class="identifier">basic_channel_logger</span></a><span class="special">(</span><span class="identifier">ArgsT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
<span class="comment">// <a class="link" href="basic_channel_logger.html#idp41378112-bb">public member functions</a></span>
<span class="identifier">channel_type</span> <a class="link" href="basic_channel_logger.html#idp41378672-bb"><span class="identifier">channel</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
<span class="keyword">void</span> <a class="link" href="basic_channel_logger.html#idp41380960-bb"><span class="identifier">channel</span></a><span class="special">(</span><span class="identifier">channel_type</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
<span class="comment">// <a class="link" href="basic_channel_logger.html#idp41392640-bb">protected member functions</a></span>
<span class="identifier">channel_attribute</span> <span class="keyword">const</span> <span class="special">&amp;</span> <a class="link" href="basic_channel_logger.html#idp41393216-bb"><span class="identifier">get_channel_attribute</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ArgsT<span class="special">&gt;</span> <span class="identifier">record</span> <a class="link" href="basic_channel_logger.html#idp41394784-bb"><span class="identifier">open_record_unlocked</span></a><span class="special">(</span><span class="identifier">ArgsT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
<span class="keyword">void</span> <a class="link" href="basic_channel_logger.html#idp41398032-bb"><span class="identifier">swap_unlocked</span></a><span class="special">(</span><a class="link" href="basic_channel_logger.html" title="Class template basic_channel_logger">basic_channel_logger</a> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
<span class="comment">// <a class="link" href="basic_channel_logger.html#idp41400432-bb">private member functions</a></span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ArgsT<span class="special">,</span> <span class="keyword">typename</span> T<span class="special">&gt;</span>
<span class="identifier">record</span> <a class="link" href="basic_channel_logger.html#idp41401008-bb"><span class="identifier">open_record_with_channel_unlocked</span></a><span class="special">(</span><span class="identifier">ArgsT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ArgsT<span class="special">&gt;</span>
<span class="identifier">record</span> <a class="link" href="basic_channel_logger.html#idp41405456-bb"><span class="identifier">open_record_with_channel_unlocked</span></a><span class="special">(</span><span class="identifier">ArgsT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">parameter</span><span class="special">::</span><span class="identifier">void_</span><span class="special">)</span><span class="special">;</span>
<span class="special">}</span><span class="special">;</span></pre></div>
<div class="refsect1">
<a name="idp119721248"></a><h2>Description</h2>
<div class="refsect2">
<a name="idp119721664"></a><h3>
<a name="boost.log.sources.basic_channel_loggerconstruct-copy-destruct"></a><code class="computeroutput">basic_channel_logger</code>
public
construct/copy/destruct</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
<pre class="literallayout"><a name="idp41383824-bb"></a><span class="identifier">basic_channel_logger</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>
<p>Default constructor. The constructed logger has the default-constructed channel name. </p>
</li>
<li class="listitem">
<pre class="literallayout"><a name="idp41384592-bb"></a><span class="identifier">basic_channel_logger</span><span class="special">(</span><a class="link" href="basic_channel_logger.html" title="Class template basic_channel_logger">basic_channel_logger</a> <span class="keyword">const</span> <span class="special">&amp;</span> that<span class="special">)</span><span class="special">;</span></pre>
<p>Copy constructor </p>
</li>
<li class="listitem">
<pre class="literallayout"><a name="idp41386272-bb"></a><span class="identifier">basic_channel_logger</span><span class="special">(</span><a class="link" href="basic_channel_logger.html" title="Class template basic_channel_logger">basic_channel_logger</a> <span class="special">&amp;&amp;</span> that<span class="special">)</span><span class="special">;</span></pre>
<p>Move constructor </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ArgsT<span class="special">&gt;</span> <span class="keyword">explicit</span> <a name="idp41387952-bb"></a><span class="identifier">basic_channel_logger</span><span class="special">(</span><span class="identifier">ArgsT</span> <span class="keyword">const</span> <span class="special">&amp;</span> args<span class="special">)</span><span class="special">;</span></pre>
<p>Constructor with arguments. Allows to register a channel name attribute on construction.</p>
<p>
</p>
<div class="variablelist"><table border="0" class="variablelist compact">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody><tr>
<td><p><span class="term">Parameters:</span></p></td>
<td><div class="variablelist"><table border="0" class="variablelist compact">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody><tr>
<td><p><span class="term"><code class="computeroutput">args</code></span></p></td>
<td>
<p>A set of named arguments. The following arguments are supported: </p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p><code class="computeroutput">channel</code> - a string that represents the channel name </p></li></ul></div>
<p>
</p>
</td>
</tr></tbody>
</table></div></td>
</tr></tbody>
</table></div>
</li>
</ol></div>
</div>
<div class="refsect2">
<a name="idp119753392"></a><h3>
<a name="idp41378112-bb"></a><code class="computeroutput">basic_channel_logger</code> public member functions</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
<pre class="literallayout"><span class="identifier">channel_type</span> <a name="idp41378672-bb"></a><span class="identifier">channel</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p>The observer of the channel name</p>
<p>
</p>
<div class="variablelist"><table border="0" class="variablelist compact">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody><tr>
<td><p><span class="term">Returns:</span></p></td>
<td><p>The channel name that was set by the logger </p></td>
</tr></tbody>
</table></div>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">void</span> <a name="idp41380960-bb"></a><span class="identifier">channel</span><span class="special">(</span><span class="identifier">channel_type</span> <span class="keyword">const</span> <span class="special">&amp;</span> ch<span class="special">)</span><span class="special">;</span></pre>
<p>The setter of the channel name</p>
<p>
</p>
<div class="variablelist"><table border="0" class="variablelist compact">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody><tr>
<td><p><span class="term">Parameters:</span></p></td>
<td><div class="variablelist"><table border="0" class="variablelist compact">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody><tr>
<td><p><span class="term"><code class="computeroutput">ch</code></span></p></td>
<td><p>The channel name to be set for the logger </p></td>
</tr></tbody>
</table></div></td>
</tr></tbody>
</table></div>
</li>
</ol></div>
</div>
<div class="refsect2">
<a name="idp119772544"></a><h3>
<a name="idp41392640-bb"></a><code class="computeroutput">basic_channel_logger</code> protected member functions</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
<pre class="literallayout"><span class="identifier">channel_attribute</span> <span class="keyword">const</span> <span class="special">&amp;</span> <a name="idp41393216-bb"></a><span class="identifier">get_channel_attribute</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p>Channel attribute accessor </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ArgsT<span class="special">&gt;</span> <span class="identifier">record</span> <a name="idp41394784-bb"></a><span class="identifier">open_record_unlocked</span><span class="special">(</span><span class="identifier">ArgsT</span> <span class="keyword">const</span> <span class="special">&amp;</span> args<span class="special">)</span><span class="special">;</span></pre>
<p>Unlocked <code class="computeroutput">open_record</code> </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">void</span> <a name="idp41398032-bb"></a><span class="identifier">swap_unlocked</span><span class="special">(</span><a class="link" href="basic_channel_logger.html" title="Class template basic_channel_logger">basic_channel_logger</a> <span class="special">&amp;</span> that<span class="special">)</span><span class="special">;</span></pre>
<p>Unlocked swap </p>
</li>
</ol></div>
</div>
<div class="refsect2">
<a name="idp119797392"></a><h3>
<a name="idp41400432-bb"></a><code class="computeroutput">basic_channel_logger</code> private member functions</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ArgsT<span class="special">,</span> <span class="keyword">typename</span> T<span class="special">&gt;</span>
<span class="identifier">record</span> <a name="idp41401008-bb"></a><span class="identifier">open_record_with_channel_unlocked</span><span class="special">(</span><span class="identifier">ArgsT</span> <span class="keyword">const</span> <span class="special">&amp;</span> args<span class="special">,</span> <span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span> ch<span class="special">)</span><span class="special">;</span></pre>The <code class="computeroutput">open_record</code> implementation for the case when the channel is specified in log statement. </li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ArgsT<span class="special">&gt;</span>
<span class="identifier">record</span> <a name="idp41405456-bb"></a><span class="identifier">open_record_with_channel_unlocked</span><span class="special">(</span><span class="identifier">ArgsT</span> <span class="keyword">const</span> <span class="special">&amp;</span> args<span class="special">,</span>
<span class="identifier">parameter</span><span class="special">::</span><span class="identifier">void_</span><span class="special">)</span><span class="special">;</span></pre>The <code class="computeroutput">open_record</code> implementation for the case when the channel is not specified in log statement. </li>
</ol></div>
</div>
</div>
</div>
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<td align="right"><div class="copyright-footer">Copyright &#169; 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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