<?php

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/*

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* This file is part of the ManageWP Worker plugin.

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*

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* (c) ManageWP LLC <contact@managewp.com>

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*

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* For the full copyright and license information, please view the LICENSE

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* file that was distributed with this source code.

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*/

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/**

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* Unlike MWP_Stream_Limit, this stream reader is specialized for limited reading of files because

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* it is not seekable and automatically closes the underlying stream after it has been read to the end (or limit is exceeded).

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*/

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class MWP_Stream_FileLimit extends MWP_Stream_Limit

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{

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/**

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* If EOF is ever reached, it gets remembered so file handle reinitializing is prevented

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* since eof will always return true from then on.

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*

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* @var bool|null

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*/

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private $eof = null;

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public function isSeekable()

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{

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return false;

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}

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/**

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* {@inheritdoc}

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*/

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public function eof()

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{

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if ($this->eof === true) {

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return true;

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}

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$this->eof = parent::eof();

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return $this->eof;

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}

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/**

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* {@inheritdoc}

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*/

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public function read($length)

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{

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$buffer = parent::read($length);

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if ($this->eof()) {

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$this->close();

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}

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return $buffer;

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}

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}

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