uTools-Manuals/docs/php/eio_syncfs.html
2019-04-28 19:00:34 +08:00

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<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<title>Calls Linux' syncfs syscall, if available</title>
</head>
<body class="docs"><div id="layout">
<div id="layout-content"><div id="function.eio-syncfs" class="refentry">
<div class="refnamediv">
<h1 class="refname">eio_syncfs</h1>
<p class="verinfo">(PECL eio &gt;= 0.0.1dev)</p><p class="refpurpose"><span class="refname">eio_syncfs</span> &mdash; <span class="dc-title">Calls Linux&#039; syncfs syscall, if available</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.eio-syncfs-description">
<h3 class="title">说明</h3>
<div class="methodsynopsis dc-description">
<span class="methodname"><strong>eio_syncfs</strong></span>
( <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter">$fd</code></span>
[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$pri</code><span class="initializer"> = EIO_PRI_DEFAULT</span></span>
[, <span class="methodparam"><span class="type"><a href="language.types.callable.html" class="type callable">callable</a></span> <code class="parameter">$callback</code><span class="initializer"> = NULL</span></span>
[, <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter">$data</code><span class="initializer"> = NULL</span></span>
]]] ) : <span class="type">resource</span></div>
<p class="para rdfs-comment">
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.eio-syncfs-parameters">
<h3 class="title">参数</h3>
<dl>
<dt>
<code class="parameter">fd</code></dt>
<dd>
<p class="para">
File descriptor
</p>
</dd>
<dt>
<code class="parameter">pri</code></dt>
<dd>
<p class="para">请求的优先级:<strong><code>EIO_PRI_DEFAULT</code></strong><strong><code>EIO_PRI_MIN</code></strong><strong><code>EIO_PRI_MAX</code></strong><strong><code>NULL</code></strong>。如果是
<strong><code>NULL</code></strong><code class="parameter">pri</code> 将设为
<strong><code>EIO_PRI_DEFAULT</code></strong>
</p>
</dd>
<dt>
<code class="parameter">callback</code></dt>
<dd>
<p class="para">
<code class="parameter">callback</code>
函数在请求完成时被调用。其应匹配一下原型:<div class="example-contents"><div class="phpcode"><pre><span style="color: #000000">
void&nbsp;callback(mixed&nbsp;$data,&nbsp;int&nbsp;$result[,&nbsp;resource&nbsp;$req]);</span>
</pre></div></div>
<dl>
<dt>
<code class="parameter">data</code></dt>
<dd>
<p class="para">传递给请求的用户数据。</p></dd>
<dt>
<code class="parameter">result</code></dt>
<dd>
<p class="para">针对请求的结果的值。通常是相应的系统调用返回的值。</p></dd>
<dt>
<code class="parameter">req</code></dt>
<dd>
<p class="para">可选的请求资源,可被 <span class="function"><a href="eio_get_last_error.html" class="function">eio_get_last_error()</a></span>
之类的函数使用。</p></dd>
</dl>
</p>
</dd>
<dt>
<code class="parameter">data</code></dt>
<dd>
<p class="para">
Arbitrary variable passed to <code class="parameter">callback</code>.
</p>
</dd>
</dl>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.eio-syncfs-returnvalues">
<h3 class="title">返回值</h3>
<p class="para">
<span class="function"><strong>eio_syncfs()</strong></span> returns request resource on success or <strong><code>FALSE</code></strong> on error.
</p>
</div>
</div></div></div></body></html>