2002-04-15 00:12:54 +00:00
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<?xml version="1.0" encoding="iso-8859-1"?>
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2002-04-17 06:45:35 +00:00
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<!-- $Revision: 1.2 $ -->
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2002-04-15 00:12:54 +00:00
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<!-- splitted from ./en/functions/filesystem.xml, last change in rev 1.2 -->
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<refentry id="function.clearstatcache">
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<refnamediv>
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<refname>clearstatcache</refname>
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<refpurpose>Clears file stat cache</refpurpose>
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</refnamediv>
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<refsect1>
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<title>Description</title>
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<methodsynopsis>
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<type>void</type><methodname>clearstatcache</methodname>
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<void/>
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</methodsynopsis>
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<para>
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Invoking the <systemitem>stat</systemitem> or
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<systemitem>lstat</systemitem> system call on most systems is
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quite expensive. Therefore, the result of the last call to any of
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the status functions (listed below) is stored for use on the next
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such call using the same filename. If you wish to force a new
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status check, for instance if the file is being checked many
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times and may change or disappear, use this function to clear the
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results of the last call from memory.
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</para>
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<para>
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This value is only cached for the lifetime of a single request.
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</para>
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<para>
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Affected functions include <function>stat</function>,
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<function>lstat</function>,
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<function>file_exists</function>,
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<function>is_writable</function>,
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<function>is_readable</function>,
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<function>is_executable</function>,
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<function>is_file</function>,
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<function>is_dir</function>,
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<function>is_link</function>,
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<function>filectime</function>,
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<function>fileatime</function>,
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<function>filemtime</function>,
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<function>fileinode</function>,
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<function>filegroup</function>,
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<function>fileowner</function>,
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<function>filesize</function>,
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<function>filetype</function>, and
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<function>fileperms</function>.
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</para>
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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:"../../../../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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