上传cppreference
This commit is contained in:
@@ -0,0 +1,71 @@
|
||||
<!DOCTYPE html>
|
||||
<html lang="zh" dir="ltr" class="client-nojs" xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh">
|
||||
<head><meta http-equiv="x-ua-compatible" content="ie=edge">
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
|
||||
<title>C++ 具名要求:共享定时互斥体 (SharedTimedMutex)</title>
|
||||
<link rel="stylesheet" href="ext.css" />
|
||||
<link rel="stylesheet" href="site_modules.css" />
|
||||
</head>
|
||||
<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-cpp_named_req_SharedTimedMutex skin-cppreference2 action-view cpp-navbar">
|
||||
<div id="cpp-content-base">
|
||||
<div id="content"><a id="top"></a>
|
||||
<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">C++ 具名要求:</span><span style="font-style:italic">共享定时互斥体</span> <span style="font-family: Georgia, 'DejaVu Serif', serif; font-style:italic">(SharedTimedMutex)</span></h1>
|
||||
<div id="bodyContent">
|
||||
<div id="contentSub"><span class="subpages">< <a href="cpp.html">cpp</a>‎ | <a href="cpp-named_req.html">named req</a></span></div>
|
||||
<div id="mw-content-text" lang="zh" dir="ltr" class="mw-content-ltr" xml:lang="zh">
|
||||
<p><strong class="selflink"><span style="font-style:italic">共享定时互斥体</span> <span style="font-family: Georgia, 'DejaVu Serif', serif; font-style:italic">(SharedTimedMutex)</span></strong> 要求扩展<a href="cpp-named_req-TimedMutex.html"><span style="font-style:italic">定时互斥体</span> <span style="font-family: Georgia, 'DejaVu Serif', serif; font-style:italic">(TimedMutex)</span></a> 要求以包含共享锁所有权模式。</p>
|
||||
<h3><span class="mw-headline" id=".E8.A6.81.E6.B1.82">要求</span></h3>
|
||||
<ul>
|
||||
<li><a href="cpp-named_req-TimedMutex.html"><span style="font-style:italic">定时互斥体</span> <span style="font-family: Georgia, 'DejaVu Serif', serif; font-style:italic">(TimedMutex)</span></a></li>
|
||||
<li><a href="cpp-named_req-SharedMutex.html"><span style="font-style:italic">共享互斥体</span> <span style="font-family: Georgia, 'DejaVu Serif', serif; font-style:italic">(SharedMutex)</span></a></li>
|
||||
</ul>
|
||||
<p>另外,对于支持定时共享操作的<span style="font-style:italic">共享定时互斥体</span> <span style="font-family: Georgia, 'DejaVu Serif', serif; font-style:italic">(SharedTimedMutex)</span> 类型对象 <code><b>m</b></code> :</p>
|
||||
<ul>
|
||||
<li>表达式 <span class="t-c"><span class="mw-geshi cpp source-cpp">m.<span class="me1">try_lock_shared_for</span><span class="br0">(</span>duration<span class="br0">)</span></span></span> 拥有下列属性</li>
|
||||
</ul>
|
||||
<dl>
|
||||
<dd>
|
||||
<ul>
|
||||
<li>表现为原子操作。</li>
|
||||
<li>试图在 <code>duration</code> 所指定的时常内获得互斥的共享所有权。若 <code>duration</code> 小于或等于 <code>duration.zero()</code> ,则试图获得所有权而不阻塞(如同用 <code>try_lock()</code> )。否则,此函数将阻塞直至得到互斥,或直至经过 <code>duration</code> 所指定的时长。它仅若成功才在 <code>duration</code> 内返回,但允许获得互斥失败,即使在 <code>duration</code> 期间的某点,互斥不为另一线程所占有。任何情况下,若得到互斥则返回 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">true</span></span></span> ,否则返回 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">false</span></span></span> 。</li>
|
||||
<li>若 <code>try_lock_shared_for(duration)</code> 成功,则同一对象上先前的 <code>unlock()</code> 操作<i>同步于</i>此操作(等价于释放获得内存顺序 (<span class="t-lc"><a href="cpp-atomic-memory_order.html">std::memory_order</a></span>) )。</li>
|
||||
<li>若调用方线程已以任何模式占有互斥,则行为未定义。</li>
|
||||
<li>执行期间时钟、时间点或时长可能抛出异常(标准库提供的时钟、时间点及时长决不抛出)。</li>
|
||||
<li>若抛出异常,则不获得共享锁。</li>
|
||||
</ul>
|
||||
</dd>
|
||||
</dl>
|
||||
<ul>
|
||||
<li>表达式 <span class="t-c"><span class="mw-geshi cpp source-cpp">m.<span class="me1">try_lock_shared_until</span><span class="br0">(</span>time_point<span class="br0">)</span></span></span> 拥有下列属性</li>
|
||||
</ul>
|
||||
<dl>
|
||||
<dd>
|
||||
<ul>
|
||||
<li>表现为原子操作。</li>
|
||||
<li>试图在 <code>time_point</code> 前剩余的时间内获得互斥的共享所有权。若已经过 <code>time_point</code> ,则试图获得所有权而不阻塞(如同用 <code>try_lock()</code> )。否则,此函数将阻塞直至得到互斥,或直至经过 <code>time_point</code> 所制定的时间点。它仅若成功才在 <code>time_point</code> 前返回,但允许获得互斥失败,即使在 <code>time_point</code> 前的某点,互斥不为另一线程所占有。任何情况下,若得到互斥则返回 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">true</span></span></span> ,否则返回 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">false</span></span></span> 。</li>
|
||||
<li>若 <code>try_lock_shared_until(time_point)</code> 成功,则同一对象上先前的 <code>unlock()</code> 操作<i>同步于</i>此操作(等价于释放获得内存顺序 (<span class="t-lc"><a href="cpp-atomic-memory_order.html">std::memory_order</a></span>) )。</li>
|
||||
<li>若调用方线程已以任何模式占有互斥,则行为未定义。</li>
|
||||
<li>执行期间时钟、时间点或时长可能抛出异常(标准库提供的时钟、时间点及时长决不抛出)。</li>
|
||||
<li>若抛出异常,则不获得共享锁。</li>
|
||||
</ul>
|
||||
</dd>
|
||||
</dl>
|
||||
<h3><span class="mw-headline" id=".E5.BA.93.E7.B1.BB.E5.9E.8B">库类型</span></h3>
|
||||
<p>下列标准库类型满足<strong class="selflink"><span style="font-style:italic">共享定时互斥体</span> <span style="font-family: Georgia, 'DejaVu Serif', serif; font-style:italic">(SharedTimedMutex)</span></strong> :</p>
|
||||
<ul>
|
||||
<li><span class="t-lc"><a href="cpp-thread-shared_timed_mutex.html">std::shared_timed_mutex</a></span></li>
|
||||
</ul>
|
||||
<h3><span class="mw-headline" id=".E5.8F.82.E9.98.85">参阅</span></h3>
|
||||
<ul>
|
||||
<li><a href="cpp-thread.html">线程支持库</a></li>
|
||||
<li><a href="cpp-named_req-Mutex.html"><span style="font-style:italic">互斥体</span> <span style="font-family: Georgia, 'DejaVu Serif', serif; font-style:italic">(Mutex)</span></a></li>
|
||||
<li><a href="cpp-named_req-TimedMutex.html"><span style="font-style:italic">定时互斥体</span> <span style="font-family: Georgia, 'DejaVu Serif', serif; font-style:italic">(TimedMutex)</span></a></li>
|
||||
<li><a href="cpp-named_req-SharedMutex.html"><span style="font-style:italic">共享互斥体</span> <span style="font-family: Georgia, 'DejaVu Serif', serif; font-style:italic">(SharedMutex)</span></a></li>
|
||||
</ul>
|
||||
</div>
|
||||
<div class="visualClear"></div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</body>
|
||||
</html>
|
||||
Reference in New Issue
Block a user