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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">&#26631;&#20934;&#24211;&#22836;&#25991;&#20214;</span> &lt;stop_token&gt;</h1>
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<div id="contentSub"><span class="subpages">&lt; <a href="cpp.html">cpp</a>&lrm; | <a href="cpp-header.html">header</a></span></div>
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<p>&#27492;&#22836;&#25991;&#20214;&#26159;<a href="cpp-thread.html">&#32447;&#31243;&#25903;&#25345;</a>&#24211;&#30340;&#19968;&#37096;&#20998;&#12290;</p>
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<h3><span class="mw-headline" id=".E7.B1.BB">&#31867;</span></h3>
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<div><a href="cpp-thread-stop_token.html"><span class="t-lines"><span>stop_token</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span></span></div>
</div>
</td>
<td>&#26597;&#35810;&#26159;&#21542;&#24050;&#32463;&#20570;&#20986; <span class="t-lc">std::jthread</span> &#21462;&#28040;&#35831;&#27714;&#30340;&#25509;&#21475;<br />
<span class="t-mark">(&#31867;)</span></td>
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<div><a href="cpp-thread-stop_source.html"><span class="t-lines"><span>stop_source</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span></span></div>
</div>
</td>
<td>&#34920;&#31034;&#35831;&#27714;&#20572;&#27490;&#19968;&#20010;&#25110;&#22810;&#20010; <span class="t-lc">std::jthread</span> &#30340;&#31867;<br />
<span class="t-mark">(&#31867;)</span></td>
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<div><a href="cpp-thread-stop_callback.html"><span class="t-lines"><span>stop_callback</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span></span></div>
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</td>
<td>&#22312; <span class="t-lc">std::jthread</span> &#21462;&#28040;&#19978;&#27880;&#20876;&#22238;&#35843;&#30340;&#25509;&#21475;<br />
<span class="t-mark">(&#31867;&#27169;&#26495;)</span></td>
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<div><a href="cpp-thread-stop_source-nostopstate_t.html"><span class="t-lines"><span>nostopstate_t</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span></span></div>
</div>
</td>
<td>&#29992;&#20110; <code>stop_source</code> &#26500;&#36896;&#20989;&#25968;&#30340;&#21344;&#20301;&#31526;&#31867;&#22411;<br />
<span class="t-mark">(&#31867;)</span></td>
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<h3><span class="mw-headline" id=".E5.B8.B8.E9.87.8F">&#24120;&#37327;</span></h3>
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<div><a href="cpp-thread-stop_source-nostopstate.html"><span class="t-lines"><span>nostopstate</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span></span></div>
</div>
</td>
<td>&#29992;&#20110; <code>stop_source</code> &#26500;&#36896;&#20989;&#25968;&#30340; <code>std::nostopstate_t</code> &#23454;&#20363;<br />
<span class="t-mark">(&#24120;&#37327;)</span></td>
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<h3><span class="mw-headline" id=".E6.A6.82.E8.A6.81">&#27010;&#35201;</span></h3>
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<div class="cpp source-cpp">
<pre class="de1"><span class="kw1">namespace</span> std <span class="br0">{</span>
<span class="co1">// &#31867; stop_token</span>
<span class="kw1">class</span> stop_token<span class="sy4">;</span>
<span class="co1">// &#31867; stop_source</span>
<span class="kw1">class</span> stop_source<span class="sy4">;</span>
<span class="co1">// &#26080;&#20849;&#20139;&#20572;&#27490;&#29366;&#24577;&#25351;&#31034;&#22120;</span>
<span class="kw1">struct</span> nostopstate_t <span class="br0">{</span>
<span class="kw1">explicit</span> nostopstate_t<span class="br0">(</span><span class="br0">)</span> <span class="sy1">=</span> <span class="kw1">default</span><span class="sy4">;</span>
<span class="br0">}</span><span class="sy4">;</span>
<span class="kw1">inline</span> <span class="kw4">constexpr</span> nostopstate_t nostopstate<span class="br0">{</span><span class="br0">}</span><span class="sy4">;</span>
<span class="co1">// &#31867; stop_callback</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Callback<span class="sy1">&gt;</span>
<span class="kw1">class</span> stop_callback<span class="sy4">;</span>
<span class="br0">}</span></pre></div>
</div>
<h4><span class="mw-headline" id=".E7.B1.BB_std::stop_token">&#31867; <span class="t-lc">std::stop_token</span></span></h4>
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<div class="cpp source-cpp">
<pre class="de1"><span class="kw1">namespace</span> std <span class="br0">{</span>
<span class="kw1">class</span> stop_token <span class="br0">{</span>
<span class="kw1">public</span><span class="sy4">:</span>
<span class="co1">// &#26500;&#36896;&#20989;&#25968;&#12289;&#22797;&#21046;&#19982;&#36171;&#20540;</span>
stop_token<span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
stop_token<span class="br0">(</span><span class="kw4">const</span> stop_token<span class="sy3">&amp;</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
stop_token<span class="br0">(</span>stop_token<span class="sy3">&amp;&amp;</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
stop_token<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span><span class="kw4">const</span> stop_token<span class="sy3">&amp;</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
stop_token<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span>stop_token<span class="sy3">&amp;&amp;</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
~stop_token<span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span>
<span class="kw4">void</span> swap<span class="br0">(</span>stop_token<span class="sy3">&amp;</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
<span class="co1">// &#20572;&#27490;&#22788;&#29702;</span>
<span class="br0">[</span><span class="br0">[</span>nodiscard<span class="br0">]</span><span class="br0">]</span> <span class="kw4">bool</span> stop_requested<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
<span class="br0">[</span><span class="br0">[</span>nodiscard<span class="br0">]</span><span class="br0">]</span> <span class="kw4">bool</span> stop_possible<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
<span class="br0">[</span><span class="br0">[</span>nodiscard<span class="br0">]</span><span class="br0">]</span>
<span class="kw1">friend</span> <span class="kw4">bool</span> operator<span class="sy1">==</span><span class="br0">(</span><span class="kw4">const</span> stop_token<span class="sy3">&amp;</span> lhs, <span class="kw4">const</span> stop_token<span class="sy3">&amp;</span> rhs<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
<span class="kw1">friend</span> <span class="kw4">void</span> swap<span class="br0">(</span>stop_token<span class="sy3">&amp;</span> lhs, stop_token<span class="sy3">&amp;</span> rhs<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
<span class="br0">}</span><span class="sy4">;</span>
<span class="br0">}</span></pre></div>
</div>
<h4><span class="mw-headline" id=".E7.B1.BB_std::stop_source">&#31867; <span class="t-lc">std::stop_source</span></span></h4>
<div dir="ltr" class="mw-geshi" style="text-align: left;">
<div class="cpp source-cpp">
<pre class="de1"><span class="kw1">namespace</span> std <span class="br0">{</span>
<span class="co1">// &#26080;&#20849;&#20139;&#20572;&#27490;&#29366;&#24577;&#25351;&#31034;&#22120;</span>
<span class="kw1">struct</span> nostopstate_t <span class="br0">{</span>
<span class="kw1">explicit</span> nostopstate_t<span class="br0">(</span><span class="br0">)</span> <span class="sy1">=</span> <span class="kw1">default</span><span class="sy4">;</span>
<span class="br0">}</span><span class="sy4">;</span>
<span class="kw1">inline</span> <span class="kw4">constexpr</span> nostopstate_t nostopstate<span class="br0">{</span><span class="br0">}</span><span class="sy4">;</span>
<span class="kw1">class</span> stop_source <span class="br0">{</span>
<span class="kw1">public</span><span class="sy4">:</span>
<span class="co1">// &#26500;&#36896;&#20989;&#25968;&#12289;&#22797;&#21046;&#19982;&#36171;&#20540;</span>
stop_source<span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span>
<span class="kw1">explicit</span> stop_source<span class="br0">(</span>nostopstate_t<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
stop_source<span class="br0">(</span><span class="kw4">const</span> stop_source<span class="sy3">&amp;</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
stop_source<span class="br0">(</span>stop_source<span class="sy3">&amp;&amp;</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
stop_source<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span><span class="kw4">const</span> stop_source<span class="sy3">&amp;</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
stop_source<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span>stop_source<span class="sy3">&amp;&amp;</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
~stop_source<span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span>
<span class="kw4">void</span> swap<span class="br0">(</span>stop_source<span class="sy3">&amp;</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
<span class="co1">// &#20572;&#27490;&#22788;&#29702;</span>
<span class="br0">[</span><span class="br0">[</span>nodiscard<span class="br0">]</span><span class="br0">]</span> stop_token get_token<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
<span class="br0">[</span><span class="br0">[</span>nodiscard<span class="br0">]</span><span class="br0">]</span> <span class="kw4">bool</span> stop_possible<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
<span class="br0">[</span><span class="br0">[</span>nodiscard<span class="br0">]</span><span class="br0">]</span> <span class="kw4">bool</span> stop_requested<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
<span class="kw4">bool</span> request_stop<span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
<span class="br0">[</span><span class="br0">[</span>nodiscard<span class="br0">]</span><span class="br0">]</span> <span class="kw1">friend</span> <span class="kw4">bool</span>
operator<span class="sy1">==</span><span class="br0">(</span><span class="kw4">const</span> stop_source<span class="sy3">&amp;</span> lhs, <span class="kw4">const</span> stop_source<span class="sy3">&amp;</span> rhs<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
<span class="kw1">friend</span> <span class="kw4">void</span> swap<span class="br0">(</span>stop_source<span class="sy3">&amp;</span> lhs, stop_source<span class="sy3">&amp;</span> rhs<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
<span class="br0">}</span><span class="sy4">;</span>
<span class="br0">}</span></pre></div>
</div>
<h4><span class="mw-headline" id=".E7.B1.BB.E6.A8.A1.E6.9D.BF_std::stop_callback">&#31867;&#27169;&#26495; <span class="t-lc">std::stop_callback</span></span></h4>
<div dir="ltr" class="mw-geshi" style="text-align: left;">
<div class="cpp source-cpp">
<pre class="de1"><span class="kw1">namespace</span> std <span class="br0">{</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Callback<span class="sy1">&gt;</span>
<span class="kw1">class</span> stop_callback <span class="br0">{</span>
<span class="kw1">public</span><span class="sy4">:</span>
<span class="kw1">using</span> callback_type <span class="sy1">=</span> Callback<span class="sy4">;</span>
<span class="co1">// &#26500;&#36896;&#20989;&#25968;&#19982;&#26512;&#26500;&#20989;&#25968;</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> C<span class="sy1">&gt;</span>
<span class="kw1">explicit</span> stop_callback<span class="br0">(</span><span class="kw4">const</span> stop_token<span class="sy3">&amp;</span> st, C<span class="sy3">&amp;&amp;</span> cb<span class="br0">)</span>
<span class="kw1">noexcept</span><span class="br0">(</span>is_nothrow_constructible_v<span class="sy1">&lt;</span>Callback, C<span class="sy1">&gt;</span><span class="br0">)</span><span class="sy4">;</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> C<span class="sy1">&gt;</span>
<span class="kw1">explicit</span> stop_callback<span class="br0">(</span>stop_token<span class="sy3">&amp;&amp;</span> st, C<span class="sy3">&amp;&amp;</span> cb<span class="br0">)</span>
<span class="kw1">noexcept</span><span class="br0">(</span>is_nothrow_constructible_v<span class="sy1">&lt;</span>Callback, C<span class="sy1">&gt;</span><span class="br0">)</span><span class="sy4">;</span>
~stop_callback<span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span>
stop_callback<span class="br0">(</span><span class="kw4">const</span> stop_callback<span class="sy3">&amp;</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
stop_callback<span class="br0">(</span>stop_callback<span class="sy3">&amp;&amp;</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
stop_callback<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span><span class="kw4">const</span> stop_callback<span class="sy3">&amp;</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
stop_callback<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span>stop_callback<span class="sy3">&amp;&amp;</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
<span class="kw1">private</span><span class="sy4">:</span>
Callback callback<span class="sy4">;</span> <span class="co1">// &#20165;&#29992;&#20110;&#38416;&#37322;</span>
<span class="br0">}</span><span class="sy4">;</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Callback<span class="sy1">&gt;</span>
stop_callback<span class="br0">(</span>stop_token, Callback<span class="br0">)</span> <span class="sy2">-</span><span class="sy1">&gt;</span> stop_callback<span class="sy1">&lt;</span>Callback<span class="sy1">&gt;</span><span class="sy4">;</span>
<span class="br0">}</span></pre></div>
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