108 lines
5.1 KiB
HTML
108 lines
5.1 KiB
HTML
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<html lang="zh" dir="ltr" class="client-nojs" xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh">
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<title>std::future_status</title>
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<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-cpp_thread_future_status 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::</span>future_status</h1>
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<div id="bodyContent">
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<div id="contentSub"><span class="subpages">< <a href="cpp.html">cpp</a>‎ | <a href="cpp-thread.html">thread</a></span></div>
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<div id="mw-content-text" lang="zh" dir="ltr" class="mw-content-ltr" xml:lang="zh">
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<div>定义于头文件 <code><a href="cpp-header-future.html"><future></a></code></div>
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<td></td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw2">enum</span> <span class="kw1">class</span> future_status <span class="br0">{</span><br /></span>
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<p> ready,<br />
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timeout,<br />
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deferred<br /></p>
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<span class="br0">}</span><span class="sy4">;</span></div>
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<td><span class="t-mark-rev t-since-cxx11">(C++11 起)</span></td>
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<p>指定 <span class="t-lc"><a href="cpp-thread-future.html">std::future</a></span> 和 <span class="t-lc"><a href="cpp-thread-shared_future.html">std::shared_future</a></span> 的 <code>wait_for</code> 和 <code>wait_until</code> 函数所返回的 future 状态。</p>
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<td>常量</td>
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<td>解释</td>
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<td><code>deferred</code></td>
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<td>共享状态持有的函数正在延迟运行，结果将仅在显式请求时计算</td>
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</tr>
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<tr class="t-dsc">
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<td><code>ready</code></td>
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<td>共享状态就绪</td>
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<tr class="t-dsc">
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<td><code>timeout</code></td>
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<td>共享状态在经过指定的等待时间内仍未就绪</td>
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<h3><span class="mw-headline" id=".E5.8F.82.E9.98.85">参阅</span></h3>
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<div class="t-dsc-member-div">
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<div><a href="cpp-thread-future-wait_for.html"><span class="t-lines"><span>wait_for</span></span></a></div>
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</div>
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</td>
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<td>等待结果，如果在指定的超时间隔后仍然无法得到结果，则返回。<br />
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<span class="t-mark">(<code>std::future<T></code> 的公开成员函数)</span></td>
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</tr>
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="cpp-thread-shared_future-wait_for.html"><span class="t-lines"><span>wait_for</span></span></a></div>
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</div>
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</td>
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<td>等待结果，如果在指定的超时间隔后仍然无法得到结果，则返回。<br />
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<span class="t-mark">(<code>std::shared_future<T></code> 的公开成员函数)</span></td>
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</tr>
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="cpp-thread-future-wait_until.html"><span class="t-lines"><span>wait_until</span></span></a></div>
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</div>
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</td>
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<td>等待结果，如果在已经到达指定的时间点时仍然无法得到结果，则返回。<br />
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<span class="t-mark">(<code>std::future<T></code> 的公开成员函数)</span></td>
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</tr>
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="cpp-thread-shared_future-wait_until.html"><span class="t-lines"><span>wait_until</span></span></a></div>
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</div>
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</td>
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<td>等待结果，如果在已经到达指定的时间点时仍然无法得到结果，则返回。<br />
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<span class="t-mark">(<code>std::shared_future<T></code> 的公开成员函数)</span></td>
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</tr>
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</table>
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