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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"><title>tbb::spin_mutex Class Reference</title><link href="doxygen.css" rel="stylesheet" type="text/css"><link href="tabs.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.4.7 --><div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="modules.html"><span>Modules</span></a></li> <li><a href="namespaces.html"><span>Namespaces</span></a></li> <li id="current"><a href="annotated.html"><span>Classes</span></a></li> <li><a href="files.html"><span>Files</span></a></li> <li><a href="pages.html"><span>Related Pages</span></a></li> </ul></div><div class="tabs"> <ul> <li><a href="annotated.html"><span>Class List</span></a></li> <li><a href="hierarchy.html"><span>Class Hierarchy</span></a></li> <li><a href="functions.html"><span>Class Members</span></a></li> </ul></div><div class="nav"><a class="el" href="a00428.html">tbb</a>::<a class="el" href="a00343.html">spin_mutex</a></div><h1>tbb::spin_mutex Class Reference<br><small>[<a class="el" href="a00444.html">Synchronization</a>]</small></h1><!-- doxytag: class="tbb::spin_mutex" -->A lock that occupies a single byte. <a href="#_details">More...</a><p><code>#include <spin_mutex.h></code><p><a href="a00127.html">List of all members.</a><table border="0" cellpadding="0" cellspacing="0"><tr><td></td></tr><tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00343.html#3d8fb44644fd8d41ada1fbeba7409be3">spin_mutex</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Construct unacquired lock. <a href="#3d8fb44644fd8d41ada1fbeba7409be3"></a><br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="4b3fa21632815f8fab2fd6c67ec0d48c"></a><!-- doxytag: member="tbb::spin_mutex::internal_construct" ref="4b3fa21632815f8fab2fd6c67ec0d48c" args="()" -->void __TBB_EXPORTED_METHOD </td><td class="memItemRight" valign="bottom"><b>internal_construct</b> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="4f748989e19b6045e3a2d2ee73626a28"></a><!-- doxytag: member="tbb::spin_mutex::lock" ref="4f748989e19b6045e3a2d2ee73626a28" args="()" -->void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00343.html#4f748989e19b6045e3a2d2ee73626a28">lock</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Acquire lock. <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="a00343.html#8f9a58fb56a2b4c5efe1a7f7c1ae2074">try_lock</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Try acquiring lock (non-blocking). <a href="#8f9a58fb56a2b4c5efe1a7f7c1ae2074"></a><br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="0e843ee6265f57f27d228ba91e7308ef"></a><!-- doxytag: member="tbb::spin_mutex::unlock" ref="0e843ee6265f57f27d228ba91e7308ef" args="()" -->void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00343.html#0e843ee6265f57f27d228ba91e7308ef">unlock</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Release lock. <br></td></tr><tr><td colspan="2"><br><h2>Static Public Attributes</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="5a7c93ca9e7ab656037a43984f24c051"></a><!-- doxytag: member="tbb::spin_mutex::is_rw_mutex" ref="5a7c93ca9e7ab656037a43984f24c051" args="" -->static const bool </td><td class="memItemRight" valign="bottom"><b>is_rw_mutex</b> = false</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="a967c455d0d80c9bbe030905201391b6"></a><!-- doxytag: member="tbb::spin_mutex::is_recursive_mutex" ref="a967c455d0d80c9bbe030905201391b6" args="" -->static const bool </td><td class="memItemRight" valign="bottom"><b>is_recursive_mutex</b> = false</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="ec12e4036073fb684b6d2d33493ed0aa"></a><!-- doxytag: member="tbb::spin_mutex::is_fair_mutex" ref="ec12e4036073fb684b6d2d33493ed0aa" args="" -->static const bool </td><td class="memItemRight" valign="bottom"><b>is_fair_mutex</b> = false</td></tr>
<tr><td colspan="2"><br><h2>Friends</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="a36f15b770a1bb0b56e33d7fa75ebd1a"></a><!-- doxytag: member="tbb::spin_mutex::scoped_lock" ref="a36f15b770a1bb0b56e33d7fa75ebd1a" args="" -->class </td><td class="memItemRight" valign="bottom"><b>scoped_lock</b></td></tr>
<tr><td colspan="2"><br><h2>Classes</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">class </td><td class="memItemRight" valign="bottom"><a class="el" href="a00344.html">scoped_lock</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Represents acquisition of a mutex. <a href="a00344.html#_details">More...</a><br></td></tr></table><hr><a name="_details"></a><h2>Detailed Description</h2>A lock that occupies a single byte. <p>A <a class="el" href="a00343.html">spin_mutex</a> is a spin mutex that fits in a single byte. It should be used only for locking short critical sections (typically less than 20 instructions) when fairness is not an issue. If zero-initialized, the mutex is considered unheld. <p><hr><h2>Constructor & Destructor Documentation</h2><a class="anchor" name="3d8fb44644fd8d41ada1fbeba7409be3"></a><!-- doxytag: member="tbb::spin_mutex::spin_mutex" ref="3d8fb44644fd8d41ada1fbeba7409be3" args="()" --><div class="memitem"><div class="memproto"> <table class="memname"> <tr> <td class="memname">tbb::spin_mutex::spin_mutex </td> <td>(</td> <td class="paramname"> </td> <td> ) </td> <td width="100%"><code> [inline]</code></td> </tr> </table></div><div class="memdoc">
<p>Construct unacquired lock. <p>Equivalent to zero-initialization of *this. </div></div><p><hr><h2>Member Function Documentation</h2><a class="anchor" name="8f9a58fb56a2b4c5efe1a7f7c1ae2074"></a><!-- doxytag: member="tbb::spin_mutex::try_lock" ref="8f9a58fb56a2b4c5efe1a7f7c1ae2074" args="()" --><div class="memitem"><div class="memproto"> <table class="memname"> <tr> <td class="memname">bool tbb::spin_mutex::try_lock </td> <td>(</td> <td class="paramname"> </td> <td> ) </td> <td width="100%"><code> [inline]</code></td> </tr> </table></div><div class="memdoc">
<p>Try acquiring lock (non-blocking). <p>Return true if lock acquired; false otherwise. </div></div><p><hr>The documentation for this class was generated from the following file:<ul><li>spin_mutex.h</ul><hr><p></p>Copyright © 2005-2013 Intel Corporation. All Rights Reserved.<p></p>Intel, Pentium, Intel Xeon, Itanium, Intel XScale and VTune areregistered trademarks or trademarks of Intel Corporation or itssubsidiaries in the United States and other countries.<p></p>* Other names and brands may be claimed as the property of others.
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