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<?php
/*
* This file is part of SwiftMailer.
* (c) 2004-2009 Chris Corbyn
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
/**
* An abstract means of reading data.
* Classes implementing this interface may use a subsystem which requires less
* memory than working with large strings of data.
* @package Swift
* @subpackage ByteStream
* @author Chris Corbyn
*/
interface Swift_OutputByteStream
{
/**
* Reads $length bytes from the stream into a string and moves the pointer
* through the stream by $length. If less bytes exist than are requested the
* remaining bytes are given instead. If no bytes are remaining at all, boolean
* false is returned.
* @param int $length
* @return string
* @throws Swift_IoException
*/
public function read($length);
/**
* Move the internal read pointer to $byteOffset in the stream.
* @param int $byteOffset
* @return boolean
* @throws Swift_IoException
*/
public function setReadPointer($byteOffset);
}
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