411 lines
18 KiB
HTML
411 lines
18 KiB
HTML
<!DOCTYPE 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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<head><meta http-equiv="x-ua-compatible" content="ie=edge">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<title>线程支持库</title>
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<link rel="stylesheet" href="ext.css" />
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<link rel="stylesheet" href="site_modules.css" />
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</head>
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<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-c_thread skin-cppreference2 action-view cpp-navbar">
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<div id="cpp-content-base">
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<div id="content"><a id="top"></a>
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<h1 id="firstHeading" class="firstHeading">线程支持库</h1>
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<div id="bodyContent">
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<div id="contentSub"><span class="subpages">< <a href="c.html">c</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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<p>若编译器定义宏常量 <code>__STDC_NO_THREADS__</code><span class="t-mark-rev t-since-c11">(C11)</span> ，则不提供头文件 <code><threads.h></code> 和所有列于此的名称。</p>
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<h3><span class="mw-headline" id=".E7.BA.BF.E7.A8.8B">线程</span></h3>
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<table class="t-dsc-begin">
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<tr class="t-dsc-header">
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<td colspan="2">
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<div>定义于头文件 <code><threads.h></code></div>
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</td>
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</tr>
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<tr class="t-dsc">
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<td><code><b>thrd_t</b></code></td>
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<td>实现定义的标识线程的完整对象类型</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="c-thread-thrd_create.html"><span class="t-lines"><span>thrd_create</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
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</div>
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</td>
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<td>创建线程<br />
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<span class="t-mark">(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="c-thread-thrd_equal.html"><span class="t-lines"><span>thrd_equal</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
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</div>
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</td>
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<td>检查二个标识符是否表示同一线程<br />
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<span class="t-mark">(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="c-thread-thrd_current.html"><span class="t-lines"><span>thrd_current</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
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</div>
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</td>
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<td>获取当前线程标识符<br />
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<span class="t-mark">(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="c-thread-thrd_sleep.html"><span class="t-lines"><span>thrd_sleep</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
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</div>
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</td>
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<td>在给定的时间段内暂停调用方线程的执行<br />
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<span class="t-mark">(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="c-thread-thrd_yield.html"><span class="t-lines"><span>thrd_yield</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
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</div>
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</td>
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<td>让出当前时间片段<br />
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<span class="t-mark">(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="c-thread-thrd_exit.html"><span class="t-lines"><span>thrd_exit</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
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</div>
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</td>
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<td>终止调用方线程<br />
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<span class="t-mark">(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="c-thread-thrd_detach.html"><span class="t-lines"><span>thrd_detach</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
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</div>
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</td>
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<td>分离线程<br />
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<span class="t-mark">(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="c-thread-thrd_join.html"><span class="t-lines"><span>thrd_join</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
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</div>
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</td>
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<td>阻塞到线程终止为止<br />
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<span class="t-mark">(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="c-thread-thrd_errors.html"><span class="t-lines"><span>thrd_success</span><span>thrd_timedout</span><span>thrd_busy</span><span>thrd_nomem</span><span>thrd_error</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
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</div>
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</td>
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<td>指示线程错误状态<br />
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<span class="t-mark">(常量)</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><span class="t-lines"><span>thrd_start_t</span></span></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
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</div>
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</td>
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<td>函数指针类型 <span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">int</span><span class="br0">(</span><span class="sy2">*</span><span class="br0">)</span><span class="br0">(</span><span class="kw4">void</span><span class="sy2">*</span><span class="br0">)</span></span></span> 的 typedef ，为 <span class="t-c"><span class="mw-geshi c source-c"><a href="c-thread-thrd_create.html"><span class="kw996">thrd_create</span></a></span></span> 所用<br />
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<span class="t-mark">(typedef)</span></td>
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</tr>
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</table>
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<h3><span class="mw-headline" id=".E4.BA.92.E6.96.A5">互斥</span></h3>
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<table class="t-dsc-begin">
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<tr class="t-dsc-header">
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<td colspan="2">
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<div>定义于头文件 <code><threads.h></code></div>
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</td>
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</tr>
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<tr class="t-dsc">
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<td><code><b>mtx_t</b></code></td>
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<td>互斥标识符</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="c-thread-mtx_init.html"><span class="t-lines"><span>mtx_init</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
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</div>
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</td>
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<td>创建互斥<br />
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<span class="t-mark">(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="c-thread-mtx_lock.html"><span class="t-lines"><span>mtx_lock</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
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</div>
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</td>
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<td>阻塞到锁定互斥为止<br />
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<span class="t-mark">(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="c-thread-mtx_timedlock.html"><span class="t-lines"><span>mtx_timedlock</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
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</div>
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</td>
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<td>阻塞到锁定互斥或时限经过为止<br />
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<span class="t-mark">(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="c-thread-mtx_trylock.html"><span class="t-lines"><span>mtx_trylock</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
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</div>
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</td>
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<td>锁定互斥，若已锁定则返回而不阻塞<br />
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<span class="t-mark">(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="c-thread-mtx_unlock.html"><span class="t-lines"><span>mtx_unlock</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
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</div>
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</td>
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<td>解锁互斥<br />
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<span class="t-mark">(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="c-thread-mtx_destroy.html"><span class="t-lines"><span>mtx_destroy</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
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</div>
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</td>
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<td>销毁互斥<br />
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<span class="t-mark">(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="c-thread-mtx_types.html"><span class="t-lines"><span>mtx_plain</span><span>mtx_recursive</span><span>mtx_timed</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-c11">(C11)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
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</div>
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</td>
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<td>定义互斥的类型<br />
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<span class="t-mark">(枚举)</span></td>
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</tr>
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<tr>
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<td colspan="2">
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<h5><span class="mw-headline" id=".E4.B8.80.E6.AC.A1.E8.B0.83.E7.94.A8">一次调用</span></h5>
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</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="c-thread-call_once.html"><span class="t-lines"><span>call_once</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
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</div>
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</td>
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<td>准确地一次调用函数<br />
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<span class="t-mark">(函数)</span></td>
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</tr>
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</table>
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<h3><span class="mw-headline" id=".E6.9D.A1.E4.BB.B6.E5.8F.98.E9.87.8F">条件变量</span></h3>
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<table class="t-dsc-begin">
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<tr class="t-dsc-header">
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<td colspan="2">
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<div>定义于头文件 <code><threads.h></code></div>
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</td>
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</tr>
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<tr class="t-dsc">
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<td><code><b>cnd_t</b></code></td>
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<td>条件变量标识符</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="c-thread-cnd_init.html"><span class="t-lines"><span>cnd_init</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
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</div>
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</td>
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<td>创建条件变量<br />
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<span class="t-mark">(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="c-thread-cnd_signal.html"><span class="t-lines"><span>cnd_signal</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
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</div>
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</td>
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<td>除阻一个阻塞于条件变量上的线程<br />
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<span class="t-mark">(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="c-thread-cnd_broadcast.html"><span class="t-lines"><span>cnd_broadcast</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
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</div>
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</td>
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<td>除阻所有阻塞于条件变量上的线程<br />
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<span class="t-mark">(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="c-thread-cnd_wait.html"><span class="t-lines"><span>cnd_wait</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
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</div>
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</td>
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<td>在条件变量上阻塞<br />
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<span class="t-mark">(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="c-thread-cnd_timedwait.html"><span class="t-lines"><span>cnd_timedwait</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
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</div>
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</td>
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<td>在条件变量上阻塞一段时长<br />
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<span class="t-mark">(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="c-thread-cnd_destroy.html"><span class="t-lines"><span>cnd_destroy</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
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</div>
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</td>
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<td>销毁条件变量<br />
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<span class="t-mark">(函数)</span></td>
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</tr>
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</table>
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<h3><span class="mw-headline" id=".E7.BA.BF.E7.A8.8B.E5.B1.80.E5.9F.9F.E5.AD.98.E5.82.A8">线程局域存储</span></h3>
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<table class="t-dsc-begin">
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<tr class="t-dsc-header">
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<td colspan="2">
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<div>定义于头文件 <code><threads.h></code></div>
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</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="c-thread-thread_local.html"><span class="t-lines"><span>thread_local</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
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</div>
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</td>
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<td>线程局域存储类宏<br />
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<span class="t-mark">(关键词宏)</span></td>
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</tr>
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<tr class="t-dsc">
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<td><code><b>tss_t</b></code></td>
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<td>线程特定存储的指针</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="c-thread-TSS_DTOR_ITERATIONS.html"><span class="t-lines"><span>TSS_DTOR_ITERATIONS</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
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</div>
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</td>
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<td>析构器被调用的最大次数<br />
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<span class="t-mark">(宏常量)</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><span class="t-lines"><span><code><b>tss_dtor_t</b></code></span></span></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
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</div>
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</td>
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<td>函数指针类型 <span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">void</span><span class="br0">(</span><span class="sy2">*</span><span class="br0">)</span><span class="br0">(</span><span class="kw4">void</span><span class="sy2">*</span><span class="br0">)</span></span></span> ，用作 TSS 析构器<br />
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<span class="t-mark">(typedef)</span></td>
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</tr>
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="c-thread-tss_create.html"><span class="t-lines"><span>tss_create</span></span></a></div>
|
|
<div><span class="t-lines"><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
|
|
</div>
|
|
</td>
|
|
<td>以给定的析构器，创建线程特定存储指针<br />
|
|
<span class="t-mark">(函数)</span></td>
|
|
</tr>
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="c-thread-tss_get.html"><span class="t-lines"><span>tss_get</span></span></a></div>
|
|
<div><span class="t-lines"><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
|
|
</div>
|
|
</td>
|
|
<td>从线程特定存储读取<br />
|
|
<span class="t-mark">(函数)</span></td>
|
|
</tr>
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="c-thread-tss_set.html"><span class="t-lines"><span>tss_set</span></span></a></div>
|
|
<div><span class="t-lines"><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
|
|
</div>
|
|
</td>
|
|
<td>写入线程特定存储<br />
|
|
<span class="t-mark">(函数)</span></td>
|
|
</tr>
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="c-thread-tss_delete.html"><span class="t-lines"><span>tss_delete</span></span></a></div>
|
|
<div><span class="t-lines"><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
|
|
</div>
|
|
</td>
|
|
<td>释放给定的线程特定存储指针所保有的资源<br />
|
|
<span class="t-mark">(函数)</span></td>
|
|
</tr>
|
|
</table>
|
|
<h3><span class="mw-headline" id=".E4.BF.9D.E7.95.99.E6.A0.87.E8.AF.86.E7.AC.A6">保留标识符</span></h3>
|
|
<p>以 <code>cnd_</code> 、 <code>mtx_</code> 、 <code>thrd_</code> 或 <code>tss_</code> 后随一个小写字母开始的函数名、类型名和枚举常量可能被添加到 C 标准的未来修订版中 <code><threads.h></code> 头文件中的声明，而可移植的程序不该使用这些标识符。</p>
|
|
<h3><span class="mw-headline" id=".E5.BC.95.E7.94.A8">引用</span></h3>
|
|
<div class="t-ref-std-11">
|
|
<ul>
|
|
<li>C11 标准（ISO/IEC 9899:2011）：</li>
|
|
</ul>
|
|
<dl>
|
|
<dd>
|
|
<ul>
|
|
<li>7.26 Threads <threads.h> (p: 376-387)</li>
|
|
</ul>
|
|
</dd>
|
|
</dl>
|
|
<dl>
|
|
<dd>
|
|
<ul>
|
|
<li>7.31.15 Threads <threads.h> (p: 456)</li>
|
|
</ul>
|
|
</dd>
|
|
</dl>
|
|
</div>
|
|
<h3><span class="mw-headline" id=".E5.8F.82.E9.98.85">参阅</span></h3>
|
|
<table class="t-dsc-begin"></table>
|
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</div>
|
|
<div class="visualClear"></div>
|
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</div>
|
|
</div>
|
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</div>
|
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</body>
|
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</html>
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