| 1 |
<?php |
| 2 |
/* |
| 3 |
* This file is part of the ManageWP Worker plugin. |
| 4 |
* |
| 5 |
* (c) ManageWP LLC <contact@managewp.com> |
| 6 |
* |
| 7 |
* For the full copyright and license information, please view the LICENSE |
| 8 |
* file that was distributed with this source code. |
| 9 |
*/ |
| 10 |
|
| 11 |
/** |
| 12 |
* Unlike MWP_Stream_Limit, this stream reader is specialized for limited reading of files because |
| 13 |
* it is not seekable and automatically closes the underlying stream after it has been read to the end (or limit is exceeded). |
| 14 |
*/ |
| 15 |
class MWP_Stream_FileLimit extends MWP_Stream_Limit |
| 16 |
{ |
| 17 |
|
| 18 |
/** |
| 19 |
* If EOF is ever reached, it gets remembered so file handle reinitializing is prevented |
| 20 |
* since eof will always return true from then on. |
| 21 |
* |
| 22 |
* @var bool|null |
| 23 |
*/ |
| 24 |
private $eof = null; |
| 25 |
|
| 26 |
public function isSeekable() |
| 27 |
{ |
| 28 |
return false; |
| 29 |
} |
| 30 |
|
| 31 |
/** |
| 32 |
* {@inheritdoc} |
| 33 |
*/ |
| 34 |
public function eof() |
| 35 |
{ |
| 36 |
if ($this->eof === true) { |
| 37 |
return true; |
| 38 |
} |
| 39 |
|
| 40 |
$this->eof = parent::eof(); |
| 41 |
|
| 42 |
return $this->eof; |
| 43 |
} |
| 44 |
|
| 45 |
/** |
| 46 |
* {@inheritdoc} |
| 47 |
*/ |
| 48 |
public function read($length) |
| 49 |
{ |
| 50 |
$buffer = parent::read($length); |
| 51 |
if ($this->eof()) { |
| 52 |
$this->close(); |
| 53 |
} |
| 54 |
|
| 55 |
return $buffer; |
| 56 |
} |
| 57 |
} |
| 58 |
|