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+<title>Class interprocess_recursive_mutex</title>
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+<a name="boost.interprocess.interprocess_r_idp48028896"></a><div class="titlepage"></div>
+<div class="refnamediv">
+<h2><span class="refentrytitle">Class interprocess_recursive_mutex</span></h2>
+<p>boost::interprocess::interprocess_recursive_mutex</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="../../interprocess/indexes_reference.html#header.boost.interprocess.sync.interprocess_recursive_mutex_hpp" title="Header &lt;boost/interprocess/sync/interprocess_recursive_mutex.hpp&gt;">boost/interprocess/sync/interprocess_recursive_mutex.hpp</a>&gt;
+
+</span>
+<span class="keyword">class</span> <a class="link" href="interprocess_r_idp48028896.html" title="Class interprocess_recursive_mutex">interprocess_recursive_mutex</a> <span class="special">{</span>
+<span class="keyword">public</span><span class="special">:</span>
+ <span class="comment">// <a class="link" href="interprocess_r_idp48028896.html#boost.interprocess.interprocess_r_idp48028896construct-copy-destruct">construct/copy/destruct</a></span>
+ <a class="link" href="interprocess_r_idp48028896.html#idp48043760-bb"><span class="identifier">interprocess_recursive_mutex</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
+ <a class="link" href="interprocess_r_idp48028896.html#idp48045216-bb"><span class="special">~</span><span class="identifier">interprocess_recursive_mutex</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
+
+ <span class="comment">// <a class="link" href="interprocess_r_idp48028896.html#idp48030592-bb">public member functions</a></span>
+ <span class="keyword">void</span> <a class="link" href="interprocess_r_idp48028896.html#idp48031152-bb"><span class="identifier">lock</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
+ <span class="keyword">bool</span> <a class="link" href="interprocess_r_idp48028896.html#idp48033472-bb"><span class="identifier">try_lock</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
+ <span class="keyword">bool</span> <a class="link" href="interprocess_r_idp48028896.html#idp48037088-bb"><span class="identifier">timed_lock</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">posix_time</span><span class="special">::</span><span class="identifier">ptime</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
+ <span class="keyword">void</span> <a class="link" href="interprocess_r_idp48028896.html#idp48041408-bb"><span class="identifier">unlock</span></a><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="idp384681104"></a><h2>Description</h2>
+<p>Wraps a <a class="link" href="interprocess_mutex.html" title="Class interprocess_mutex">interprocess_mutex</a> that can be placed in shared memory and can be shared between processes. Allows several locking calls by the same process. Allows timed lock tries </p>
+<div class="refsect2">
+<a name="idp384682848"></a><h3>
+<a name="boost.interprocess.interprocess_r_idp48028896construct-copy-destruct"></a><code class="computeroutput">interprocess_recursive_mutex</code>
+ public
+ construct/copy/destruct</h3>
+<div class="orderedlist"><ol class="orderedlist" type="1">
+<li class="listitem">
+<pre class="literallayout"><a name="idp48043760-bb"></a><span class="identifier">interprocess_recursive_mutex</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>
+<p>Constructor. Throws <code class="computeroutput"><a class="link" href="interprocess_exception.html" title="Class interprocess_exception">interprocess_exception</a></code> on error. </p>
+</li>
+<li class="listitem">
+<pre class="literallayout"><a name="idp48045216-bb"></a><span class="special">~</span><span class="identifier">interprocess_recursive_mutex</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>
+<p>Destructor. If any process uses the mutex after the destructor is called the result is undefined. Does not throw. </p>
+</li>
+</ol></div>
+</div>
+<div class="refsect2">
+<a name="idp384694944"></a><h3>
+<a name="idp48030592-bb"></a><code class="computeroutput">interprocess_recursive_mutex</code> public member functions</h3>
+<div class="orderedlist"><ol class="orderedlist" type="1">
+<li class="listitem">
+<pre class="literallayout"><span class="keyword">void</span> <a name="idp48031152-bb"></a><span class="identifier">lock</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>
+<p>Effects: The calling thread tries to obtain ownership of the mutex, and if another thread has ownership of the mutex, it waits until it can obtain the ownership. If a thread takes ownership of the mutex the mutex must be unlocked by the same mutex. The mutex must be unlocked the same number of times it is locked. Throws: <code class="computeroutput"><a class="link" href="interprocess_exception.html" title="Class interprocess_exception">interprocess_exception</a></code> on error. </p>
+</li>
+<li class="listitem">
+<pre class="literallayout"><span class="keyword">bool</span> <a name="idp48033472-bb"></a><span class="identifier">try_lock</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>
+<p>Tries to lock the <code class="computeroutput"><a class="link" href="interprocess_mutex.html" title="Class interprocess_mutex">interprocess_mutex</a></code>, returns false when <code class="computeroutput"><a class="link" href="interprocess_mutex.html" title="Class interprocess_mutex">interprocess_mutex</a></code> is already locked, returns true when success. The mutex must be unlocked the same number of times it is locked. Throws: <code class="computeroutput"><a class="link" href="interprocess_exception.html" title="Class interprocess_exception">interprocess_exception</a></code> if a severe error is found </p>
+</li>
+<li class="listitem">
+<pre class="literallayout"><span class="keyword">bool</span> <a name="idp48037088-bb"></a><span class="identifier">timed_lock</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">posix_time</span><span class="special">::</span><span class="identifier">ptime</span> <span class="special">&amp;</span> abs_time<span class="special">)</span><span class="special">;</span></pre>
+<p>Tries to lock the <code class="computeroutput"><a class="link" href="interprocess_mutex.html" title="Class interprocess_mutex">interprocess_mutex</a></code>, if <code class="computeroutput"><a class="link" href="interprocess_mutex.html" title="Class interprocess_mutex">interprocess_mutex</a></code> can't be locked before abs_time time, returns false. The mutex must be unlocked the same number of times it is locked. Throws: <code class="computeroutput"><a class="link" href="interprocess_exception.html" title="Class interprocess_exception">interprocess_exception</a></code> if a severe error is found </p>
+</li>
+<li class="listitem">
+<pre class="literallayout"><span class="keyword">void</span> <a name="idp48041408-bb"></a><span class="identifier">unlock</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>
+<p>Effects: The calling thread releases the exclusive ownership of the mutex. If the mutex supports recursive locking, the mutex must be unlocked the same number of times it is locked. Throws: <code class="computeroutput"><a class="link" href="interprocess_exception.html" title="Class interprocess_exception">interprocess_exception</a></code> on error. </p>
+</li>
+</ol></div>
+</div>
+</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 &#169; 2005-2015 Ion Gaztanaga<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>
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