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103 lines
4.8 KiB
HTML
103 lines
4.8 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>Sets nonblocking mode for file descriptor fd</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.socket-set-nonblock" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">socket_set_nonblock</h1>
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<p class="verinfo">(PHP 4 >= 4.1.0, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">socket_set_nonblock</span> — <span class="dc-title">Sets nonblocking mode for file descriptor fd </span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.socket-set-nonblock-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>socket_set_nonblock</strong></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$socket</code></span>
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) : <span class="type">bool</span></div>
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<p class="para rdfs-comment">
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The <span class="function"><strong>socket_set_nonblock()</strong></span> function sets the
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<strong><code>O_NONBLOCK</code></strong> flag on the socket specified by
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the <code class="parameter">socket</code> parameter.
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</p>
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<p class="para">
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When an operation (e.g. receive, send, connect, accept, ...) is performed on
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a non-blocking socket, the script will not pause its execution until it receives a
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signal or it can perform the operation. Rather, if the operation would result
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in a block, the called function will fail.
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.socket-set-nonblock-parameters">
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<h3 class="title">参数</h3>
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<p class="para">
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<dl>
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<dt>
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<code class="parameter">socket</code></dt>
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<dd>
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<p class="para">
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A valid socket resource created with <span class="function"><a href="socket_create.html" class="function">socket_create()</a></span>
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or <span class="function"><a href="socket_accept.html" class="function">socket_accept()</a></span>.
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</p>
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</dd>
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</dl>
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</p>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.socket-set-nonblock-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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成功时返回 <strong><code>TRUE</code></strong>， 或者在失败时返回 <strong><code>FALSE</code></strong>。
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.socket-set-nonblock-examples">
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<h3 class="title">范例</h3>
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<p class="para">
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<div class="example" id="example-5607">
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<p><strong>Example #1 <span class="function"><strong>socket_set_nonblock()</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 />$socket </span><span style="color: #007700">= </span><span style="color: #0000BB">socket_create_listen</span><span style="color: #007700">(</span><span style="color: #0000BB">1223</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">socket_set_nonblock</span><span style="color: #007700">(</span><span style="color: #0000BB">$socket</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">socket_accept</span><span style="color: #007700">(</span><span style="color: #0000BB">$socket</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>
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This example creates a listening socket on all interfaces on port 1223 and
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sets the socket to <strong><code>O_NONBLOCK</code></strong> mode.
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<span class="function"><a href="socket_accept.html" class="function">socket_accept()</a></span> will immediately fail unless there is a
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pending connection exactly at this moment.
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</p></div>
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</div>
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</p>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.socket-set-nonblock-seealso">
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<h3 class="title">参见</h3>
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<p class="para">
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<ul class="simplelist">
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<li class="member"><span class="function"><a href="socket_set_block.html" class="function" rel="rdfs-seeAlso">socket_set_block()</a> - Sets blocking mode on a socket resource</span></li>
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<li class="member"><span class="function"><a href="socket_set_option.html" class="function" rel="rdfs-seeAlso">socket_set_option()</a> - Sets socket options for the socket</span></li>
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<li class="member"><span class="function"><a href="stream_set_blocking.html" class="function" rel="rdfs-seeAlso">stream_set_blocking()</a> - 为资源流设置阻塞或者阻塞模式</span></li>
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</ul>
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</p>
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</div>
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</div></div></div></body></html> |