mirror of
https://github.com/sigmasternchen/php-doc-en
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5faa7a6747
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@324122 c90b9560-bf6c-de11-be94-00142212c4b1
147 lines
3.4 KiB
XML
147 lines
3.4 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<refentry xml:id="function.eio-grp" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
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<refnamediv>
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<refname>eio_grp</refname>
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<refpurpose>Createsa request group.</refpurpose>
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</refnamediv>
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<refsect1 role="description">
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&reftitle.description;
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<methodsynopsis>
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<type>resource</type><methodname>eio_grp</methodname>
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<methodparam><type>callable</type><parameter>callback</parameter></methodparam>
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<methodparam
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choice="opt"><type>string</type><parameter>data</parameter><initializer>NULL</initializer></methodparam>
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</methodsynopsis>
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<para>
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<function>eio_grp</function> creates a request group.
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</para>
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</refsect1>
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<refsect1 role="parameters">
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&reftitle.parameters;
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<variablelist>
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<varlistentry>
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<term><parameter>callback</parameter></term>
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<listitem>
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&eio.callback.proto;
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>data</parameter></term>
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<listitem>
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<para>
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Arbitrary variable passed to <parameter>callback</parameter>.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1 role="returnvalues">
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&reftitle.returnvalues;
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<para>
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<function>eio_grp</function> returns request group resource on success or &false; on error.
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</para>
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</refsect1>
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<refsect1 role="examples">
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&reftitle.examples;
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<example>
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<title><function>eio_grp</function> example</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$temp_filename = dirname(__FILE__) ."/eio-file.tmp";
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$fp = fopen($temp_filename, "w");
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fwrite($fp, "some data");
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fclose($fp);
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$my_file_fd = NULL;
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/* Is called when the group requests are done */
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function my_grp_done($data, $result) {
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// Remove the file, if it still exists
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@unlink($data);
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}
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/* Is called when the temporary file is opened */
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function my_grp_file_opened_callback($data, $result) {
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global $my_file_fd, $grp;
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$my_file_fd = $result;
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$req = eio_read($my_file_fd, 4, 0,
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EIO_PRI_DEFAULT, "my_grp_file_read_callback");
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eio_grp_add($grp, $req);
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}
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/* Is called when the file is read */
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function my_grp_file_read_callback($data, $result) {
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global $my_file_fd, $grp;
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var_dump($result);
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// Create request to close the file
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$req = eio_close($my_file_fd);
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// Add request to the group
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eio_grp_add($grp, $req);
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}
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// Create request group
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$grp = eio_grp("my_grp_done", $temp_filename);
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// Create request
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$req = eio_open($temp_filename, EIO_O_RDWR | EIO_O_APPEND , NULL,
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EIO_PRI_DEFAULT, "my_grp_file_opened_callback", NULL);
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// Add request to the group
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eio_grp_add($grp, $req);
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// Process requests
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eio_event_loop();
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?>
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]]>
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</programlisting>
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&example.outputs.similar;
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<screen>
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<![CDATA[
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string(4) "some"
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]]>
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</screen>
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</example>
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</refsect1>
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<refsect1 role="seealso">
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&reftitle.seealso;
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<simplelist>
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<member>eio_grp_cancel</member>
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<member>eio_grp_add</member>
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</simplelist>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"~/.phpdoc/manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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