126 lines
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126 lines
10 KiB
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<title>Synchronization</title>
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<div class="title">Synchronization</div> </div>
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="nested-classes"></a>
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Classes</h2></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="a00015.html">tbb::atomic< T ></a></td></tr>
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<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Primary template for atomic. <a href="a00015.html#details">More...</a><br/></td></tr>
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<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="a00077.html">tbb::mutex</a></td></tr>
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<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Wrapper around the platform's native lock. <a href="a00077.html#details">More...</a><br/></td></tr>
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<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="a00079.html">tbb::null_mutex</a></td></tr>
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<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">A mutex which does nothing. <a href="a00079.html#details">More...</a><br/></td></tr>
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<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="a00080.html">tbb::null_rw_mutex</a></td></tr>
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<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">A rw mutex which does nothing. <a href="a00080.html#details">More...</a><br/></td></tr>
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<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="a00100.html">tbb::queuing_mutex</a></td></tr>
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<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Queuing mutex with local-only spinning. <a href="a00100.html#details">More...</a><br/></td></tr>
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<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="a00101.html">tbb::queuing_rw_mutex</a></td></tr>
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<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Queuing reader-writer mutex with local-only spinning. <a href="a00101.html#details">More...</a><br/></td></tr>
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<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="a00103.html">tbb::interface5::reader_writer_lock</a></td></tr>
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<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Writer-preference reader-writer lock with local-only spinning on readers. <a href="a00103.html#details">More...</a><br/></td></tr>
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<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="a00116.html">tbb::recursive_mutex</a></td></tr>
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<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="a00135.html">tbb::spin_mutex</a></td></tr>
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<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">A lock that occupies a single byte. <a href="a00135.html#details">More...</a><br/></td></tr>
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<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="a00136.html">tbb::spin_rw_mutex_v3</a></td></tr>
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<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Fast, unfair, spinning reader-writer lock with backoff and writer-preference. <a href="a00136.html#details">More...</a><br/></td></tr>
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<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="typedef-members"></a>
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Typedefs</h2></td></tr>
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<tr class="memitem:ga69722571e9e4406693c4a1379f0b47eb"><td class="memItemLeft" align="right" valign="top">typedef <br class="typebreak"/>
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interface7::internal::padded_mutex<br class="typebreak"/>
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< interface7::internal::x86_eliding_mutex, <br class="typebreak"/>
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false > </td><td class="memItemRight" valign="bottom"><a class="el" href="a00249.html#ga69722571e9e4406693c4a1379f0b47eb">tbb::speculative_spin_mutex</a></td></tr>
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<tr class="memdesc:ga69722571e9e4406693c4a1379f0b47eb"><td class="mdescLeft"> </td><td class="mdescRight">A cross-platform spin mutex with speculative lock acquisition. <a href="#ga69722571e9e4406693c4a1379f0b47eb">More...</a><br/></td></tr>
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<tr class="separator:ga69722571e9e4406693c4a1379f0b47eb"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga97d0da95fd4f92af12de15e1a8b5c780"><td class="memItemLeft" align="right" valign="top">typedef <br class="typebreak"/>
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interface7::internal::padded_mutex<br class="typebreak"/>
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< tbb::interface8::internal::x86_rtm_rw_mutex, <br class="typebreak"/>
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true > </td><td class="memItemRight" valign="bottom"><a class="el" href="a00249.html#ga97d0da95fd4f92af12de15e1a8b5c780">tbb::interface8::speculative_spin_rw_mutex</a></td></tr>
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<tr class="memdesc:ga97d0da95fd4f92af12de15e1a8b5c780"><td class="mdescLeft"> </td><td class="mdescRight">A cross-platform spin reader/writer mutex with speculative lock acquisition. <a href="#ga97d0da95fd4f92af12de15e1a8b5c780">More...</a><br/></td></tr>
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<tr class="separator:ga97d0da95fd4f92af12de15e1a8b5c780"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<h2 class="groupheader">Typedef Documentation</h2>
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<a class="anchor" id="ga69722571e9e4406693c4a1379f0b47eb"></a>
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<td class="memname">typedef interface7::internal::padded_mutex< spin_mutex, false > <a class="el" href="a00249.html#ga69722571e9e4406693c4a1379f0b47eb">tbb::speculative_spin_mutex</a></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<p>A cross-platform spin mutex with speculative lock acquisition. </p>
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<p>On platforms with proper HW support, this lock may speculatively execute its critical sections, using HW mechanisms to detect real data races and ensure atomicity of the critical sections. In particular, it uses Intel(R) Transactional Synchronization Extensions (Intel(R) TSX). Without such HW support, it behaves like a <a class="el" href="a00135.html" title="A lock that occupies a single byte. ">spin_mutex</a>. It should be used for locking short critical sections where the lock is contended but the data it protects are not. If zero-initialized, the mutex is considered unheld. </p>
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</div>
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</div>
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<a class="anchor" id="ga97d0da95fd4f92af12de15e1a8b5c780"></a>
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<div class="memitem">
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<div class="memproto">
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<td class="memname">typedef interface7::internal::padded_mutex< <a class="el" href="a00136.html">tbb::spin_rw_mutex</a>, true > <a class="el" href="a00249.html#ga97d0da95fd4f92af12de15e1a8b5c780">tbb::interface8::speculative_spin_rw_mutex</a></td>
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</table>
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</div><div class="memdoc">
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<p>A cross-platform spin reader/writer mutex with speculative lock acquisition. </p>
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<p>On platforms with proper HW support, this lock may speculatively execute its critical sections, using HW mechanisms to detect real data races and ensure atomicity of the critical sections. In particular, it uses Intel(R) Transactional Synchronization Extensions (Intel(R) TSX). Without such HW support, it behaves like a spin_rw_mutex. It should be used for locking short critical sections where the lock is contended but the data it protects are not. </p>
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Copyright © 2005-2016 Intel Corporation. All Rights Reserved.
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Intel, Pentium, Intel Xeon, Itanium, Intel XScale and VTune are
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registered trademarks or trademarks of Intel Corporation or its
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subsidiaries in the United States and other countries.
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<p></p>
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* Other names and brands may be claimed as the property of others.
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