construct.xml

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<refentry xml:id="evsignal.construct" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
 <refnamediv>
  <refname>EvSignal::__construct</refname>
  <refpurpose>Constructs EvSignal watcher object</refpurpose>
 </refnamediv>
 <refsect1 role="description">
  &reftitle.description;
  <constructorsynopsis>
   <modifier>public</modifier>
   <methodname>EvSignal::__construct</methodname>
   <methodparam>
    <type>int</type>
    <parameter>signum</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>
  <para>
   Constructs EvSignal watcher object and starts it automatically. For a
   stopped periodic watcher consider using
   <methodname>EvSignal::createStopped</methodname>
   method.
  </para>
 </refsect1>
 <refsect1 role="parameters">
  &reftitle.parameters;
  <variablelist>
   <varlistentry>
    <term>
     <parameter>signum</parameter>
    </term>
    <listitem>
     <para>
      Signal number. See constants exported by
      <emphasis>pcntl</emphasis>
      extension. See also
      <literal>signal(7)</literal>
      man page.
     </para>
    </listitem>
   </varlistentry>
   <varlistentry>
    <term>
     <parameter>callback</parameter>
    </term>
    <listitem>
     <para>
      See
      <link linkend="ev.watcher-callbacks">Watcher callbacks</link>.
     </para>
    </listitem>
   </varlistentry>
   <varlistentry>
    <term>
     <parameter>data</parameter>
    </term>
    <listitem>
     <para>
      Custom data associated with the watcher.
     </para>
    </listitem>
   </varlistentry>
   <varlistentry>
    <term>
     <parameter>priority</parameter>
    </term>
    <listitem>
     <para>
      <link linkend="ev.constants.watcher-pri">Watcher priority</link>
     </para>
    </listitem>
   </varlistentry>
  </variablelist>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
 <example>
   <title>Handle SIGTERM signal</title>
   <programlisting role="php">
<![CDATA[
<?php
$w = new EvSignal(SIGTERM, function ($watcher) {
    echo "SIGTERM received\n";
    $watcher->stop();
});

Ev::run();
?>
]]>
   </programlisting>
  </example>
 </refsect1>
 <refsect1 role="seealso">
  &reftitle.seealso;
  <simplelist>
   <member>
    <methodname>EvSignal::createStopped</methodname>
   </member>
  </simplelist>
 </refsect1>
</refentry>
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