<?php
/***************************************************************************
* copyright            : (C) 2001-2003 Advanced Internet Designs Inc.
* email                : forum@prohost.org
* $Id: fileio.inc.t,v 1.1.1.1 2004/04/06 22:05:52 kazuyan Exp $
*
* This program is free software; you can redistribute it and/or modify it 
* under the terms of the GNU General Public License as published by the 
* Free Software Foundation; either version 2 of the License, or 
* (at your option) any later version.
***************************************************************************/

function register_fp($id)
{
	if (!isset($GLOBALS['__MSG_FP__'][$id])) {
		$GLOBALS['__MSG_FP__'][$id] = fopen($GLOBALS['MSG_STORE_DIR'].'msg_'.$id, 'rb');
	}

	return $GLOBALS['__MSG_FP__'][$id];
}

function un_register_fps()
{
	if (!isset($GLOBALS['__MSG_FP__']) || !is_array($GLOBALS['__MSG_FP__'])) {
		return;
	}

	foreach($GLOBALS['__MSG_FP__'] as $k => $v) {
		unset($GLOBALS['__MSG_FP__'][$k]);
	}
}

function read_msg_body($off, $len, $file_id)
{
	$fp = register_fp($file_id);
	fseek($fp, $off);
	return fread($fp, $len);
}
?>