77 lines
4.9 KiB
HTML
77 lines
4.9 KiB
HTML
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<title>std::basic_syncbuf<CharT,Traits,Allocator>::sync</title>
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<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-cpp_io_basic_syncbuf_sync 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::basic_syncbuf<CharT,Traits,Allocator>::</span>sync</h1>
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<div id="contentSub"><span class="subpages">< <a href="cpp.html">cpp</a>‎ | <a href="cpp-io.html">io</a>‎ | <a href="cpp-io-basic_syncbuf.html">basic syncbuf</a></span></div>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">protected</span><span class="sy4">:</span><br />
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<span class="kw4">int</span> sync<span class="br0">(</span><span class="br0">)</span> override<span class="sy4">;</span></span></div>
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<p>首先，以更新适当的私有标志，记录冲入为未决。</p>
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<p>然后，若当前的同步时发射（ emit-on-sync ）策略为 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">true</span></span></span> ，则调用 <a href="cpp-io-basic_syncbuf-emit.html"><tt>emit()</tt></a> 。</p>
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<p>否则，（若同步时发射策略为默认的 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">false</span></span></span> ），则悬挂冲入，直至调用 <a href="cpp-io-basic_syncbuf-emit.html"><tt>emit()</tt></a> ，例如通过 <a href="cpp-io-basic_osyncstream-emit.html"><tt>std::basic_osyncstream::emit()</tt></a> 或 <a href="cpp-io-basic_osyncstream-~basic_osyncstream.html"><tt>std::basic_osyncstream::~basic_osyncstream</tt></a> 。</p>
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<h3><span class="mw-headline" id=".E5.8F.82.E6.95.B0">参数</span></h3>
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<p>（无）</p>
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<h3><span class="mw-headline" id=".E6.B3.A8.E6.84.8F">注意</span></h3>
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<p><code>sync()</code> 或其等价版本为 <span class="t-lc">close()</span> 、 <span class="t-lc">seekoff()</span> 和 <span class="t-lc">seekpos()</span> 所隐式调用，并且为 <span class="t-lc"><a href="cpp-io-basic_streambuf-pubsync.html">std::basic_streambuf::pubsync()</a></span> 所显式调用。</p>
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<h3><span class="mw-headline" id=".E7.A4.BA.E4.BE.8B">示例</span></h3>
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<td class="mbox-text" style="">本节未完成<br />
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原因：暂无示例</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><a href="cpp-io-basic_streambuf-pubsync.html"><span class="t-lines"><span>sync</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-cmark">[虚]</span></span></span></div>
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<td>将缓冲与关联的字符序列同步<br />
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<span class="t-mark">(<code>std::basic_streambuf<CharT,Traits></code> 的虚受保护成员函数)</span></td>
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<div><a href="cpp-io-basic_osyncstream-emit.html"><span class="t-lines"><span>emit</span></span></a></div>
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<td>调用底层 basic_syncbuf 上的 emit 以传输其内部数据到最终目标<br />
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<span class="t-mark">(<code>std::basic_osyncstream<CharT,Traits,Allocator></code> 的公开成员函数)</span></td>
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