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114 lines
3.8 KiB
HTML
114 lines
3.8 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>Set or reset callbacks for a buffered event</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.event-buffer-set-callback" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">event_buffer_set_callback</h1>
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<p class="verinfo">(PECL libevent >= 0.0.4)</p><p class="refpurpose"><span class="refname">event_buffer_set_callback</span> — <span class="dc-title">Set or reset callbacks for a buffered event</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.event-buffer-set-callback-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>event_buffer_set_callback</strong></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$event</code></span>
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, <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter">$readcb</code></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">$writecb</code></span>
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, <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter">$errorcb</code></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">$arg</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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Sets or changes existing callbacks for the buffered <code class="parameter">event</code>.
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.event-buffer-set-callback-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">event</code></dt>
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<dd>
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<p class="para">
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Valid buffered event resource.
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</p>
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</dd>
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<dt>
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<code class="parameter">readcb</code></dt>
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<dd>
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<p class="para">
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Callback to invoke where there is data to read, or <span class="type"><a href="language.types.null.html" class="type NULL">NULL</a></span> if
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no callback is desired.
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</p>
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</dd>
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<dt>
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<code class="parameter">writecb</code></dt>
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<dd>
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<p class="para">
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Callback to invoke where the descriptor is ready for writing,
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or <span class="type"><a href="language.types.null.html" class="type NULL">NULL</a></span> if no callback is desired.
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</p>
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</dd>
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<dt>
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<code class="parameter">errorcb</code></dt>
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<dd>
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<p class="para">
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Callback to invoke where there is an error on the descriptor, cannot be
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<span class="type"><a href="language.types.null.html" class="type NULL">NULL</a></span>.
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</p>
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</dd>
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<dt>
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<code class="parameter">arg</code></dt>
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<dd>
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<p class="para">
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An argument that will be passed to each of the callbacks (optional).
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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.event-buffer-set-callback-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></div></div></body></html> |