<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <title>Set or reset callbacks for a buffered event</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.event-buffer-read.html">event_buffer_read</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.event-buffer-timeout-set.html">event_buffer_timeout_set</a></div> <div class="up"><a href="ref.libevent.html">Libevent Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div><hr /><div id="function.event-buffer-set-callback" class="refentry"> <div class="refnamediv"> <h1 class="refname">event_buffer_set_callback</h1> <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> </div> <div class="refsect1 description" id="refsect1-function.event-buffer-set-callback-description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">bool</span> <span class="methodname"><strong>event_buffer_set_callback</strong></span> ( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$event</code></span> , <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter">$readcb</code></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">$writecb</code></span> , <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter">$errorcb</code></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">$arg</code></span> ] )</div> <p class="para rdfs-comment"> Sets or changes existing callbacks for the buffered <em><code class="parameter">event</code></em>. </p> </div> <div class="refsect1 parameters" id="refsect1-function.event-buffer-set-callback-parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><em><code class="parameter">event</code></em></span> <dd> <p class="para"> Valid buffered event resource. </p> </dd> </dt> <dt> <span class="term"><em><code class="parameter">readcb</code></em></span> <dd> <p class="para"> 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 no callback is desired. </p> </dd> </dt> <dt> <span class="term"><em><code class="parameter">writecb</code></em></span> <dd> <p class="para"> Callback to invoke where the descriptor is ready for writing, or <span class="type"><a href="language.types.null.html" class="type NULL">NULL</a></span> if no callback is desired. </p> </dd> </dt> <dt> <span class="term"><em><code class="parameter">errorcb</code></em></span> <dd> <p class="para"> Callback to invoke where there is an error on the descriptor, cannot be <span class="type"><a href="language.types.null.html" class="type NULL">NULL</a></span>. </p> </dd> </dt> <dt> <span class="term"><em><code class="parameter">arg</code></em></span> <dd> <p class="para"> An argument that will be passed to each of the callbacks (optional). </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues" id="refsect1-function.event-buffer-set-callback-returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns <strong><code>TRUE</code></strong> on success or <strong><code>FALSE</code></strong> on failure. </p> </div> </div><hr /><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.event-buffer-read.html">event_buffer_read</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.event-buffer-timeout-set.html">event_buffer_timeout_set</a></div> <div class="up"><a href="ref.libevent.html">Libevent Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div></body></html>