44 lines
2.5 KiB
HTML
44 lines
2.5 KiB
HTML
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<title>std::experimental::latch::~latch</title>
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<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-cpp_experimental_latch_latch skin-cppreference2 action-view cpp-navbar">
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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::experimental::latch::</span>~latch</h1>
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<div id="contentSub"><span class="subpages">< <a href="cpp.html">cpp</a>‎ | <a href="cpp-experimental.html">experimental</a>‎ | <a href="cpp-experimental-latch.html">latch</a></span></div>
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<div><span class="mw-geshi cpp source-cpp">~latch<span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span></span></div>
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<td><span class="t-mark-rev t-since-concurrency-ts t-mark-ts">(并发 TS)</span></td>
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<p>销毁 <code>latch</code> 。</p>
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<p>若线程在同步点阻塞，则行为未定义。</p>
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<p>即使不是所有线程都已从 <code>wait()</code> 或 <code>count_down_and_wait()</code> 返回，亦可调用析构函数，只要内部计数器必须等于零。</p>
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<p>析构函数可能阻塞直至所有线程都已从阻塞函数返回。</p>
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<p>在一个线程调用析构函数后，不允许线程在此 <code>latch</code> 上阻塞。</p>
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