<?php
/* $Id$ */
namespace Mammut\IO;

(defined('MAMMUT') && (basename(__FILE__) != basename($_SERVER['PHP_SELF']))) or die('ACCESS DENIED');

/**
 * Data io interface base
 *
 * @since 1.0.1.0
 * @author Stefan Daurer <s.daurer@q-spot.org>
 * @package Mammut\IO
 */
interface iIO {
	const INPUT = 'in';
	const OUTPUT = 'out';

	public function open();

	public function isOpen();

	/**
	 *
	 * @return array an array of supported input types
	 */
	public function getIOTypes();

	/**
	 * go to a specific position in the io handler.
	 * 0 is the beginning, -1 the end
	 *
	 * @param int $pos
	 *        	the new position
	 * @throws IOException if seek is not supported
	 * @throws \OutOfBoundsException on invalid seek values
	 */
	public function seek($pos);

	public function getSize();

	public function isSeekSupported();

	public function close();
}