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260 lines
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260 lines
9.5 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<title>Create a special or ordinary file</title>
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</head>
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<body class="docs"><div id="layout">
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<div id="layout-content"><div id="function.eio-mknod" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">eio_mknod</h1>
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<p class="verinfo">(PECL eio >= 0.0.1dev)</p><p class="refpurpose"><span class="refname">eio_mknod</span> — <span class="dc-title">Create a special or ordinary file</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.eio-mknod-description">
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<h3 class="title">说明</h3>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>eio_mknod</strong></span>
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( <span class="methodparam"><span class="type">string</span> <code class="parameter">$path</code></span>
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, <span class="methodparam"><span class="type">int</span> <code class="parameter">$mode</code></span>
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, <span class="methodparam"><span class="type">int</span> <code class="parameter">$dev</code></span>
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[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$pri</code><span class="initializer"> = EIO_PRI_DEFAULT</span></span>
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[, <span class="methodparam"><span class="type"><a href="language.types.callable.html" class="type callable">callable</a></span> <code class="parameter">$callback</code><span class="initializer"> = NULL</span></span>
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[, <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter">$data</code><span class="initializer"> = NULL</span></span>
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]]] ) : <span class="type">resource</span></div>
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<p class="para rdfs-comment">
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<span class="function"><strong>eio_mknod()</strong></span> creates ordinary or special(often) file.
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</p>
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<div class="warning"><strong class="warning">Warning</strong><p class="simpara">本函数还未编写文档，仅有参数列表。</p></div>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.eio-mknod-parameters">
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<h3 class="title">参数</h3>
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<dl>
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<dt>
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<code class="parameter">path</code></dt>
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<dd>
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<p class="para">
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Path for the new node(file).
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</p>
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</dd>
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<dt>
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<code class="parameter">mode</code></dt>
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<dd>
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<p class="para">
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Specifies both the permissions to use and the type of node to be
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created. It should be a combination (using bitwise OR) of one of the
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file types listed below and the permissions for the new node(e.g. 0640).
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Possible file types are: <strong><code>EIO_S_IFREG</code></strong>(regular file),
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<strong><code>EIO_S_IFCHR</code></strong>(character file),
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<strong><code>EIO_S_IFBLK</code></strong>(block special file),
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<strong><code>EIO_S_IFIFO</code></strong>(FIFO - named pipe) and
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<strong><code>EIO_S_IFSOCK</code></strong>(UNIX domain socket).
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To specify permissions <em class="emphasis">EIO_S_I*</em> constants could be
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used.
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</p>
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</dd>
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<dt>
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<code class="parameter">dev</code></dt>
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<dd>
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<p class="para">
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If the file type is <strong><code>EIO_S_IFCHR</code></strong> or
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<strong><code>EIO_S_IFBLK</code></strong> then dev specifies the major and minor
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numbers of the newly created device special file. Otherwise
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<code class="parameter">dev</code> ignored. See <em class="emphasis">mknod(2) man page for
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details</em>.
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</p>
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</dd>
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<dt>
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<code class="parameter">pri</code></dt>
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<dd>
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<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> 或 <strong><code>NULL</code></strong>。如果是
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<strong><code>NULL</code></strong>，<code class="parameter">pri</code> 将设为
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<strong><code>EIO_PRI_DEFAULT</code></strong>。
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</p>
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</dd>
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<dt>
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<code class="parameter">callback</code></dt>
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<dd>
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<p class="para">
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<code class="parameter">callback</code>
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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">
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void callback(mixed $data, int $result[, resource $req]);</span>
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</pre></div></div>
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<dl>
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<dt>
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<code class="parameter">data</code></dt>
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<dd>
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<p class="para">传递给请求的用户数据。</p></dd>
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<dt>
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<code class="parameter">result</code></dt>
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<dd>
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<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>
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<dt>
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<code class="parameter">req</code></dt>
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<dd>
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<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>
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之类的函数使用。</p></dd>
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</dl>
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</p>
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</dd>
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<dt>
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<code class="parameter">data</code></dt>
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<dd>
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<p class="para">
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Arbitrary variable passed to <code class="parameter">callback</code>.
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</p>
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</dd>
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</dl>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.eio-mknod-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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<span class="function"><strong>eio_mknod()</strong></span> returns request resource on success or <strong><code>FALSE</code></strong> on error.
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.eio-mknod-examples">
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<h3 class="title">范例</h3>
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<div class="example" id="example-4279">
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<p><strong>Example #1 <span class="function"><strong>eio_mknod()</strong></span> example</strong></p>
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br /></span><span style="color: #FF8000">// FIFO name<br /></span><span style="color: #0000BB">$temp_filename </span><span style="color: #007700">= </span><span style="color: #DD0000">"/tmp/eio-temp-fifo"</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">/* Is called when eio_mknod() finishes */<br /></span><span style="color: #007700">function </span><span style="color: #0000BB">my_mknod_callback</span><span style="color: #007700">(</span><span style="color: #0000BB">$data</span><span style="color: #007700">, </span><span style="color: #0000BB">$result</span><span style="color: #007700">) {<br /> </span><span style="color: #0000BB">$s </span><span style="color: #007700">= </span><span style="color: #0000BB">stat</span><span style="color: #007700">(</span><span style="color: #0000BB">$data</span><span style="color: #007700">);<br /> </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$s</span><span style="color: #007700">);<br /><br /> if (</span><span style="color: #0000BB">$result </span><span style="color: #007700">== </span><span style="color: #0000BB">0</span><span style="color: #007700">) {<br /> echo </span><span style="color: #DD0000">"eio_mknod_ok"</span><span style="color: #007700">;<br /> }<br /><br /> @</span><span style="color: #0000BB">unlink</span><span style="color: #007700">(</span><span style="color: #0000BB">$data</span><span style="color: #007700">);<br />}<br /><br /></span><span style="color: #0000BB">eio_mknod</span><span style="color: #007700">(</span><span style="color: #0000BB">$temp_filename</span><span style="color: #007700">, </span><span style="color: #0000BB">EIO_S_IFIFO</span><span style="color: #007700">, </span><span style="color: #0000BB">0</span><span style="color: #007700">,<br /> </span><span style="color: #0000BB">EIO_PRI_DEFAULT</span><span style="color: #007700">, </span><span style="color: #DD0000">"my_mknod_callback"</span><span style="color: #007700">, </span><span style="color: #0000BB">$temp_filename</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">eio_event_loop</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">?></span>
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</span>
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</pre></div>
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</div>
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<div class="example-contents"><p>以上例程的输出类似于：</p></div>
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<div class="example-contents screen">
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<div class="cdata"><pre>
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array(26) {
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[0]=>
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int(17)
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[1]=>
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int(2337608)
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[2]=>
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int(4096)
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[3]=>
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int(1)
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[4]=>
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int(1000)
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[5]=>
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int(100)
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[6]=>
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int(0)
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[7]=>
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int(0)
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[8]=>
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int(1318241261)
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[9]=>
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int(1318241261)
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[10]=>
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int(1318241261)
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[11]=>
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int(4096)
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[12]=>
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int(0)
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["dev"]=>
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int(17)
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["ino"]=>
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int(2337608)
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["mode"]=>
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int(4096)
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["nlink"]=>
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int(1)
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["uid"]=>
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int(1000)
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["gid"]=>
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int(100)
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["rdev"]=>
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int(0)
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["size"]=>
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int(0)
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["atime"]=>
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int(1318241261)
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["mtime"]=>
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int(1318241261)
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["ctime"]=>
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int(1318241261)
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["blksize"]=>
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int(4096)
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["blocks"]=>
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int(0)
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}
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eio_mknod_ok
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</pre></div>
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</div>
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</div>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.eio-mknod-seealso">
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<h3 class="title">参见</h3>
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<ul class="simplelist">
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<li class="member">eio_open</li>
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</ul>
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</div>
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</div></div></div></body></html> |