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<div class="title">Mutexes<div class="ingroups"><a class="el" href="a01417.html">Concurrency</a></div></div> </div>
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Collaboration diagram for Mutexes:</div>
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Classes</h2></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="a03037.html">std::adopt_lock_t</a></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="a03029.html">std::defer_lock_t</a></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="a03041.html">std::lock_guard< _Mutex ></a></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="a03021.html">std::mutex</a></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="a03025.html">std::recursive_mutex</a></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="a03033.html">std::try_to_lock_t</a></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="a03045.html">std::unique_lock< _Mutex ></a></td></tr>
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template<typename _Callable > </td></tr>
<tr class="memitem:gaebc0f7d799565d685f0dfc04718f5097"><td class="memTemplItemLeft" align="right" valign="top">void </td><td class="memTemplItemRight" valign="bottom"><b>std::__once_call_impl</b> ()</td></tr>
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void </td><td class="memItemRight" valign="bottom"><b>std::__once_proxy</b> (void)</td></tr>
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template<typename _Lock > </td></tr>
<tr class="memitem:gabb9e48fa9917aa6fb5da491ac6380b3c"><td class="memTemplItemLeft" align="right" valign="top"><a class="el" href="a03045.html">unique_lock</a>< _Lock > </td><td class="memTemplItemRight" valign="bottom"><b>std::__try_to_lock</b> (_Lock &__l)</td></tr>
<tr class="separator:gabb9e48fa9917aa6fb5da491ac6380b3c"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gaf3415e3476b6a4ecb873675dd10a0237"><td class="memTemplParams" colspan="2">template<typename _Callable , typename... _Args> </td></tr>
<tr class="memitem:gaf3415e3476b6a4ecb873675dd10a0237"><td class="memTemplItemLeft" align="right" valign="top">void </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a01426.html#gaf3415e3476b6a4ecb873675dd10a0237">std::call_once</a> (<a class="el" href="a03057.html">once_flag</a> &__once, _Callable &&__f, _Args &&... __args)</td></tr>
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<tr class="memitem:ga82fa606b1427f731ac64bb8ac49221f3"><td class="memTemplParams" colspan="2">template<typename _L1 , typename _L2 , typename... _L3> </td></tr>
<tr class="memitem:ga82fa606b1427f731ac64bb8ac49221f3"><td class="memTemplItemLeft" align="right" valign="top">void </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a01426.html#ga82fa606b1427f731ac64bb8ac49221f3">std::lock</a> (_L1 &__l1, _L2 &__l2, _L3 &... __l3)</td></tr>
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<tr class="memitem:gac58580a65df691769770684cc985719d"><td class="memTemplParams" colspan="2">template<typename _Mutex > </td></tr>
<tr class="memitem:gac58580a65df691769770684cc985719d"><td class="memTemplItemLeft" align="right" valign="top">void </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a01426.html#gac58580a65df691769770684cc985719d">std::swap</a> (<a class="el" href="a03045.html">unique_lock</a>< _Mutex > &__x, <a class="el" href="a03045.html">unique_lock</a>< _Mutex > &__y) noexcept</td></tr>
<tr class="separator:gac58580a65df691769770684cc985719d"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gab431f6ac9476a921df98db8862be201a"><td class="memTemplParams" colspan="2">template<typename _Lock1 , typename _Lock2 , typename... _Lock3> </td></tr>
<tr class="memitem:gab431f6ac9476a921df98db8862be201a"><td class="memTemplItemLeft" align="right" valign="top">int </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a01426.html#gab431f6ac9476a921df98db8862be201a">std::try_lock</a> (_Lock1 &__l1, _Lock2 &__l2, _Lock3 &... __l3)</td></tr>
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Variables</h2></td></tr>
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__thread void(* </td><td class="memItemRight" valign="bottom"><b>std::__once_call</b> )()</td></tr>
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__thread void * </td><td class="memItemRight" valign="bottom"><b>std::__once_callable</b></td></tr>
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<tr class="memitem:gad21e19f3b9b1166718c228219723e130"><td class="memItemLeft" align="right" valign="top">constexpr <a class="el" href="a03037.html">adopt_lock_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a01426.html#gad21e19f3b9b1166718c228219723e130">std::adopt_lock</a></td></tr>
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<tr class="memitem:gaef1e52b34e2d2d6e3850bbd28ff7546a"><td class="memItemLeft" align="right" valign="top">constexpr <a class="el" href="a03029.html">defer_lock_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a01426.html#gaef1e52b34e2d2d6e3850bbd28ff7546a">std::defer_lock</a></td></tr>
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<tr class="memitem:ga845da3c3459b8dc4c6f690039b797dfc"><td class="memItemLeft" align="right" valign="top">constexpr <a class="el" href="a03033.html">try_to_lock_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a01426.html#ga845da3c3459b8dc4c6f690039b797dfc">std::try_to_lock</a></td></tr>
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<tr class="memitem:ga0d3de8f7ff80877e53d25ca9057e1c0f"><td class="memTemplParams" colspan="2">template<typename _Mutex > </td></tr>
<tr class="memitem:ga0d3de8f7ff80877e53d25ca9057e1c0f"><td class="memTemplItemLeft" align="right" valign="top">void </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a01426.html#ga0d3de8f7ff80877e53d25ca9057e1c0f">std::swap</a> (<a class="el" href="a03197.html">shared_lock</a>< _Mutex > &__x, <a class="el" href="a03197.html">shared_lock</a>< _Mutex > &__y) noexcept</td></tr>
<tr class="separator:ga0d3de8f7ff80877e53d25ca9057e1c0f"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga00b5fb3f3bf333cc396bd38d3b069d85"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="a01426.html#ga00b5fb3f3bf333cc396bd38d3b069d85">__cpp_lib_shared_timed_mutex</a></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<p>Classes for mutex support. </p>
<h2 class="groupheader">Macro Definition Documentation</h2>
<a id="ga00b5fb3f3bf333cc396bd38d3b069d85"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga00b5fb3f3bf333cc396bd38d3b069d85">◆ </a></span>__cpp_lib_shared_timed_mutex</h2>
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<td class="memname">#define __cpp_lib_shared_timed_mutex</td>
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<p>Swap specialization for shared_lock. </p>
<p class="definition">Definition at line <a class="el" href="a00131_source.html#l00055">55</a> of file <a class="el" href="a00131_source.html">shared_mutex</a>.</p>
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<h2 class="groupheader">Function Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#gaf3415e3476b6a4ecb873675dd10a0237">◆ </a></span>call_once()</h2>
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template<typename _Callable , typename... _Args> </div>
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<td class="memname">void std::call_once </td>
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<td class="paramtype"><a class="el" href="a03057.html">once_flag</a> & </td>
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<td class="paramname"><em>__args</em> </td>
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<p>call_once </p>
<p class="definition">Definition at line <a class="el" href="a00104_source.html#l00723">723</a> of file <a class="el" href="a00104_source.html">mutex</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#ga82fa606b1427f731ac64bb8ac49221f3">◆ </a></span>lock()</h2>
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template<typename _L1 , typename _L2 , typename... _L3> </div>
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<td class="memname">void std::lock </td>
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<td class="paramtype">_L1 & </td>
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<td class="paramkey"></td>
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<p>Generic lock. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">__l1</td><td>Meets Mutex requirements (try_lock() may throw). </td></tr>
<tr><td class="paramname">__l2</td><td>Meets Mutex requirements (try_lock() may throw). </td></tr>
<tr><td class="paramname">__l3</td><td>Meets Mutex requirements (try_lock() may throw). </td></tr>
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<dl class="exception"><dt>Exceptions</dt><dd>
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<tr><td class="paramname">An</td><td>exception thrown by an argument's lock() or try_lock() member. </td></tr>
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<dl class="section post"><dt>Postcondition</dt><dd>All arguments are locked.</dd></dl>
<p>All arguments are locked via a sequence of calls to lock(), try_lock() and unlock(). If the call exits via an exception any locks that were obtained will be released. </p>
<p class="definition">Definition at line <a class="el" href="a00104_source.html#l00659">659</a> of file <a class="el" href="a00104_source.html">mutex</a>.</p>
<p class="reference">Referenced by <a class="el" href="a00473_source.html#l01331">std::dynamic_pointer_cast()</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#gac58580a65df691769770684cc985719d">◆ </a></span>swap() <span class="overload">[1/2]</span></h2>
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<p>Swap overload for unique_lock objects. </p>
<p class="definition">Definition at line <a class="el" href="a00104_source.html#l00581">581</a> of file <a class="el" href="a00104_source.html">mutex</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#ga0d3de8f7ff80877e53d25ca9057e1c0f">◆ </a></span>swap() <span class="overload">[2/2]</span></h2>
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<p>Swap specialization for shared_lock. </p>
<p class="definition">Definition at line <a class="el" href="a00131_source.html#l00596">596</a> of file <a class="el" href="a00131_source.html">shared_mutex</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#gab431f6ac9476a921df98db8862be201a">◆ </a></span>try_lock()</h2>
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template<typename _Lock1 , typename _Lock2 , typename... _Lock3> </div>
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<p>Generic try_lock. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">__l1</td><td>Meets Mutex requirements (try_lock() may throw). </td></tr>
<tr><td class="paramname">__l2</td><td>Meets Mutex requirements (try_lock() may throw). </td></tr>
<tr><td class="paramname">__l3</td><td>Meets Mutex requirements (try_lock() may throw). </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>Returns -1 if all try_lock() calls return true. Otherwise returns a 0-based index corresponding to the argument that returned false. </dd></dl>
<dl class="section post"><dt>Postcondition</dt><dd>Either all arguments are locked, or none will be.</dd></dl>
<p>Sequentially calls try_lock() on each argument. </p>
<p class="definition">Definition at line <a class="el" href="a00104_source.html#l00638">638</a> of file <a class="el" href="a00104_source.html">mutex</a>.</p>
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<h2 class="groupheader">Variable Documentation</h2>
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<td class="memname">constexpr <a class="el" href="a03037.html">adopt_lock_t</a> std::adopt_lock</td>
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<p>Tag used to make a scoped lock take ownership of a locked mutex. </p>
<p class="definition">Definition at line <a class="el" href="a00104_source.html#l00370">370</a> of file <a class="el" href="a00104_source.html">mutex</a>.</p>
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<td class="memname">constexpr <a class="el" href="a03029.html">defer_lock_t</a> std::defer_lock</td>
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<p>Tag used to prevent a scoped lock from acquiring ownership of a mutex. </p>
<p class="definition">Definition at line <a class="el" href="a00104_source.html#l00364">364</a> of file <a class="el" href="a00104_source.html">mutex</a>.</p>
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<td class="memname">constexpr <a class="el" href="a03033.html">try_to_lock_t</a> std::try_to_lock</td>
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<p>Tag used to prevent a scoped lock from blocking if a mutex is locked. </p>
<p class="definition">Definition at line <a class="el" href="a00104_source.html#l00367">367</a> of file <a class="el" href="a00104_source.html">mutex</a>.</p>
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