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<div><h2 class="title">
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<a name="thread"></a>Chapter 40. Thread 4.8.0</h2></div>
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<div><div class="author"><h3 class="author">
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<span class="firstname">Anthony</span> <span class="surname">Williams</span>
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</h3></div></div>
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<div><div class="author"><h3 class="author">
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<span class="firstname">Vicente J.</span> <span class="surname">Botet Escriba</span>
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</h3></div></div>
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<div><p class="copyright">Copyright © 2007 -11 Anthony Williams</p></div>
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<div><p class="copyright">Copyright © 2011 -17 Vicente J. Botet Escriba</p></div>
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<div><div class="legalnotice">
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<a name="thread.legal"></a><p>
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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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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<div class="toc">
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<p><b>Table of Contents</b></p>
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<dl class="toc">
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<dt><span class="section"><a href="thread.html#thread.overview">Overview</a></span></dt>
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<dt><span class="section"><a href="thread/build.html">Using and building the library</a></span></dt>
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<dd><dl>
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<dt><span class="section"><a href="thread/build.html#thread.build.configuration">Configuration</a></span></dt>
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<dt><span class="section"><a href="thread/build.html#thread.build.limitations">Limitations</a></span></dt>
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</dl></dd>
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<dt><span class="section"><a href="thread/changes.html">History</a></span></dt>
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<dt><span class="section"><a href="thread/future.html">Future</a></span></dt>
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<dt><span class="section"><a href="thread/thread_management.html">Thread Management</a></span></dt>
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<dd><dl>
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<dt><span class="section"><a href="thread/thread_management.html#thread.thread_management.synopsis">Synopsis</a></span></dt>
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<dt><span class="section"><a href="thread/thread_management.html#thread.thread_management.tutorial">Tutorial</a></span></dt>
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<dt><span class="section"><a href="thread/thread_management.html#thread.thread_management.thread">Class <code class="computeroutput"><span class="identifier">thread</span></code></a></span></dt>
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<dt><span class="section"><a href="thread/thread_management.html#thread.thread_management.this_thread">Namespace <code class="computeroutput"><span class="identifier">this_thread</span></code></a></span></dt>
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<dt><span class="section"><a href="thread/thread_management.html#thread.thread_management.threadgroup">Class <code class="computeroutput"><span class="identifier">thread_group</span></code> EXTENSION</a></span></dt>
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</dl></dd>
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<dt><span class="section"><a href="thread/ScopedThreads.html">Scoped Threads</a></span></dt>
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<dd><dl>
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<dt><span class="section"><a href="thread/ScopedThreads.html#thread.ScopedThreads.motivation">Motivation</a></span></dt>
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<dt><span class="section"><a href="thread/ScopedThreads.html#thread.ScopedThreads.tutorial">Tutorial</a></span></dt>
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<dt><span class="section"><a href="thread/ScopedThreads.html#thread.ScopedThreads.thread_functors">Free Thread Functors</a></span></dt>
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<dt><span class="section"><a href="thread/ScopedThreads.html#thread.ScopedThreads.strict_scoped_thread">Class <code class="computeroutput"><span class="identifier">strict_scoped_thread</span></code></a></span></dt>
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<dt><span class="section"><a href="thread/ScopedThreads.html#thread.ScopedThreads.scoped_thread">Class <code class="computeroutput"><span class="identifier">scoped_thread</span></code></a></span></dt>
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<dt><span class="section"><a href="thread/ScopedThreads.html#thread.ScopedThreads.non_member_swap">Non-member function
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<code class="computeroutput"><span class="identifier">swap</span><span class="special">(</span><span class="identifier">scoped_thread</span><span class="special">&,</span><span class="identifier">scoped_thread</span><span class="special">&)</span></code></a></span></dt>
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</dl></dd>
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<dt><span class="section"><a href="thread/synchronization.html">Synchronization</a></span></dt>
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<dd><dl>
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<dt><span class="section"><a href="thread/synchronization.html#thread.synchronization.tutorial">Tutorial</a></span></dt>
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<dt><span class="section"><a href="thread/synchronization.html#thread.synchronization.mutex_concepts">Mutex Concepts</a></span></dt>
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<dt><span class="section"><a href="thread/synchronization.html#thread.synchronization.lock_option">Lock Options</a></span></dt>
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<dt><span class="section"><a href="thread/synchronization.html#thread.synchronization.lock_guard">Lock Guard</a></span></dt>
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<dt><span class="section"><a href="thread/synchronization.html#thread.synchronization.with_lock_guard">With Lock Guard</a></span></dt>
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<dt><span class="section"><a href="thread/synchronization.html#thread.synchronization.lock_concepts">Lock Concepts</a></span></dt>
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<dt><span class="section"><a href="thread/synchronization.html#thread.synchronization.locks">Lock Types</a></span></dt>
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<dt><span class="section"><a href="thread/synchronization.html#thread.synchronization.other_locks">Other Lock Types
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- EXTENSION</a></span></dt>
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<dt><span class="section"><a href="thread/synchronization.html#thread.synchronization.lock_functions">Lock functions</a></span></dt>
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<dt><span class="section"><a href="thread/synchronization.html#thread.synchronization.lock_factories">Lock Factories
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- EXTENSION</a></span></dt>
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<dt><span class="section"><a href="thread/synchronization.html#thread.synchronization.mutex_types">Mutex Types</a></span></dt>
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<dt><span class="section"><a href="thread/synchronization.html#thread.synchronization.condvar_ref">Condition Variables</a></span></dt>
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<dt><span class="section"><a href="thread/synchronization.html#thread.synchronization.once">One-time Initialization</a></span></dt>
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<dt><span class="section"><a href="thread/synchronization.html#thread.synchronization.barriers">Barriers -- EXTENSION</a></span></dt>
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<dt><span class="section"><a href="thread/synchronization.html#thread.synchronization.latches">Latches -- EXPERIMENTAL</a></span></dt>
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<dt><span class="section"><a href="thread/synchronization.html#thread.synchronization.executors">Executors and Schedulers
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-- EXPERIMENTAL</a></span></dt>
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<dt><span class="section"><a href="thread/synchronization.html#thread.synchronization.futures">Futures</a></span></dt>
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</dl></dd>
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<dt><span class="section"><a href="thread/thread_local_storage.html">Thread Local Storage</a></span></dt>
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<dd><dl><dt><span class="section"><a href="thread/thread_local_storage.html#thread.thread_local_storage.thread_specific_ptr">Class
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<code class="computeroutput"><span class="identifier">thread_specific_ptr</span></code></a></span></dt></dl></dd>
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<dt><span class="section"><a href="thread/sds.html">Synchronized Data Structures</a></span></dt>
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<dd><dl>
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<dt><span class="section"><a href="thread/sds.html#thread.sds.synchronized_valuesxxx">Synchronized Values
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- EXPERIMENTAL</a></span></dt>
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<dt><span class="section"><a href="thread/sds.html#thread.sds.synchronized_queues">Synchronized Queues --
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EXPERIMENTAL</a></span></dt>
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</dl></dd>
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<dt><span class="section"><a href="thread/parallel.html">Parallel - Fork-Join -- EXPERIMENTAL</a></span></dt>
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<dd><dl>
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<dt><span class="section"><a href="thread/parallel.html#thread.parallel.fork_join">Fork-Join</a></span></dt>
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<dt><span class="section"><a href="thread/parallel.html#thread.parallel.ref">Reference -- EXPERIMENTAL</a></span></dt>
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</dl></dd>
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<dt><span class="section"><a href="thread/time.html">Time Requirements</a></span></dt>
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<dd><dl><dt><span class="section"><a href="thread/time.html#thread.time.deprecated">Deprecated</a></span></dt></dl></dd>
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<dt><span class="section"><a href="thread/emulations.html">Emulations</a></span></dt>
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<dd><dl>
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<dt><span class="section"><a href="thread/emulations.html#thread.emulations.delete"><code class="computeroutput"><span class="special">=</span><span class="keyword">delete</span></code> emulation</a></span></dt>
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<dt><span class="section"><a href="thread/emulations.html#thread.emulations.move">Move semantics</a></span></dt>
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<dt><span class="section"><a href="thread/emulations.html#thread.emulations.bool_explicit_conversion">Bool explicit
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conversion</a></span></dt>
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<dt><span class="section"><a href="thread/emulations.html#thread.emulations.scoped_enums">Scoped Enums</a></span></dt>
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</dl></dd>
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<dt><span class="section"><a href="thread/acknowledgements.html">Acknowledgments</a></span></dt>
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<dt><span class="section"><a href="thread/compliance.html">Conformance and Extension</a></span></dt>
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<dd><dl>
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<dt><span class="section"><a href="thread/compliance.html#thread.compliance.cpp11">C++11 standard Thread library</a></span></dt>
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<dt><span class="section"><a href="thread/compliance.html#thread.compliance.cxx14">C++14 standard Thread library
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- accepted changes</a></span></dt>
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<dt><span class="section"><a href="thread/compliance.html#thread.compliance.cxx1y">C++14 TS Extensions for Concurrency
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V1 </a></span></dt>
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<dt><span class="section"><a href="thread/compliance.html#thread.compliance.cxx1y0">C++1z TS Concurrency - On going
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proposals</a></span></dt>
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</dl></dd>
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</dl>
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</div>
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<div class="section">
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<div class="titlepage"><div><div><h2 class="title" style="clear: both">
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<a name="thread.overview"></a><a class="link" href="thread.html#thread.overview" title="Overview">Overview</a>
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</h2></div></div></div>
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<p>
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<span class="bold"><strong>Boost.Thread</strong></span> enables the use of multiple threads
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of execution with shared data in portable C++ code. It provides classes and
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functions for managing the threads themselves, along with others for synchronizing
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data between the threads or providing separate copies of data specific to individual
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threads.
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</p>
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<p>
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The <span class="bold"><strong>Boost.Thread</strong></span> library was originally written
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and designed by William E. Kempf (version 1).
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</p>
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<p>
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Anthony Williams version (version 2) was a major rewrite designed to closely
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follow the proposals presented to the C++ Standards Committee, in particular
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<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2497.html" target="_top">N2497</a>,
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<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2320.html" target="_top">N2320</a>,
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<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2184.html" target="_top">N2184</a>,
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<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n2139.html" target="_top">N2139</a>,
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and <a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n2094.html" target="_top">N2094</a>
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</p>
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<p>
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Vicente J. Botet Escriba started (version 3) the adaptation to comply with
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the accepted Thread C++11 library (Make use of Boost.Chrono and Boost.Move)
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and the <a href="http://home.roadrunner.com/~hinnant/bloomington/shared_mutex.html" target="_top">Shared
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Locking</a> Howard Hinnant proposal except for the upward conversions.
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Some minor non-standard features have been added also as thread attributes,
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reverse_lock, shared_lock_guard.
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</p>
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<p>
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In order to use the classes and functions described here, you can either include
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the specific headers specified by the descriptions of each class or function,
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or include the master thread library header:
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</p>
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<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">thread</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
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</pre>
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<p>
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which includes all the other headers in turn.
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</p>
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</div>
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</div>
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<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
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<td align="left"><p><small>Last revised: April 13, 2021 at 16:32:30 GMT</small></p></td>
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