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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.
*
* @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 $length
*
* @return string|bool
*
* @throws Swift_IoException
*/
public function read($length);
/**
* Move the internal read pointer to $byteOffset in the stream.
*
* @param int $byteOffset
*
* @return bool
*
* @throws Swift_IoException
*/
public function setReadPointer($byteOffset);
}
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