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construct.xml
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152 lines (146 loc) · 3.56 KB
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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<refentry xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="evstat.construct">
<refnamediv>
<refname>EvStat::__construct</refname>
<refpurpose>Constructs EvStat watcher object</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<constructorsynopsis>
<modifier>public</modifier>
<methodname>EvStat::__construct</methodname>
<methodparam>
<type>string</type>
<parameter>path</parameter>
</methodparam>
<methodparam>
<type>float</type>
<parameter>interval</parameter>
</methodparam>
<methodparam>
<type>callable</type>
<parameter>callback</parameter>
</methodparam>
<methodparam choice="opt">
<type>mixed</type>
<parameter>data</parameter>
<initializer>&null;</initializer>
</methodparam>
<methodparam choice="opt">
<type>int</type>
<parameter>priority</parameter>
<initializer>0</initializer>
</methodparam>
</constructorsynopsis>
<simpara>
Constructs EvStat watcher object and starts the watcher automatically.
</simpara>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<variablelist>
<varlistentry>
<term>
<parameter>path</parameter>
</term>
<listitem>
<simpara>
The path to wait for status changes on.
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>
<parameter>interval</parameter>
</term>
<listitem>
<simpara>
Hint on how quickly a change is expected to be detected and should
normally be specified as
<literal>0.0</literal>
to let
<emphasis>libev</emphasis>
choose a suitable value.
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>
<parameter>callback</parameter>
</term>
<listitem>
<simpara>
See
<link linkend="ev.watcher-callbacks">Watcher callbacks</link>.
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>
<parameter>data</parameter>
</term>
<listitem>
<simpara>
Custom data associated with the watcher.
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>
<parameter>priority</parameter>
</term>
<listitem>
<simpara>
<link linkend="ev.constants.watcher-pri">Watcher priority</link>
</simpara>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<example>
<title>Monitor changes of /var/log/messages</title>
<programlisting role="php">
<![CDATA[
<?php
// Use 10 second update interval.
$w = new EvStat("/var/log/messages", 10, function ($w) {
echo "/var/log/messages changed\n";
$attr = $w->attr();
if ($attr['nlink']) {
printf("Current size: %ld\n", $attr['size']);
printf("Current atime: %ld\n", $attr['atime']);
printf("Current mtime: %ld\n", $attr['mtime']);
} else {
fprintf(STDERR, "`messages` file is not there!");
$w->stop();
}
});
?>
]]>
</programlisting>
</example>
</refsect1>
</refentry>
<!-- Keep this comment at the end of the file
Local variables:
mode: sgml
sgml-omittag:t
sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
indent-tabs-mode:nil
sgml-parent-document:nil
sgml-default-dtd-file:"~/.phpdoc/manual.ced"
sgml-exposed-tags:nil
sgml-local-catalogs:nil
sgml-local-ecat-files:nil
End:
vim600: syn=xml fen fdm=syntax fdl=2 si
vim: et tw=78 syn=sgml
vi: ts=1 sw=1
-->