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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 297028 $ -->
<refentry xml:id="function.event-buffer-new" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>event_buffer_new</refname>
<refpurpose>Create new buffered event</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>resource</type><methodname>event_buffer_new</methodname>
<methodparam><type>resource</type><parameter>stream</parameter></methodparam>
<methodparam><type>mixed</type><parameter>readcb</parameter></methodparam>
<methodparam><type>mixed</type><parameter>writecb</parameter></methodparam>
<methodparam><type>mixed</type><parameter>errorcb</parameter></methodparam>
<methodparam choice="opt"><type>mixed</type><parameter>arg</parameter></methodparam>
</methodsynopsis>
<para>
Libevent provides an abstraction layer on top of the regular event API.
Using buffered event you don't need to deal with the I/O manually, instead
it provides input and output buffers that get filled and drained
automatically.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>stream</parameter></term>
<listitem>
<para>
Valid PHP stream resource. Must be castable to file descriptor.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>readcb</parameter></term>
<listitem>
<para>
Callback to invoke where there is data to read, or <type>NULL</type> if
no callback is desired.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>writecb</parameter></term>
<listitem>
<para>
Callback to invoke where the descriptor is ready for writing,
or <type>NULL</type> if no callback is desired.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>errorcb</parameter></term>
<listitem>
<para>
Callback to invoke where there is an error on the descriptor, cannot be
<type>NULL</type>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>arg</parameter></term>
<listitem>
<para>
An argument that will be passed to each of the callbacks (optional).
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
<function>event_buffer_new</function> returns new buffered event resource
on success or &false; on error.
</para>
</refsect1>
</refentry>
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