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Fixes #10430 Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>
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106 changes: 106 additions & 0 deletions
106
apps/files_external/3rdparty/icewind/streams/src/CountWrapper.php
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,106 @@ | ||
| <?php | ||
| /** | ||
| * @copyright Copyright (c) 2018 Robin Appelman <robin@icewind.nl> | ||
| * | ||
| * @license GNU AGPL version 3 or any later version | ||
| * | ||
| * This program is free software: you can redistribute it and/or modify | ||
| * it under the terms of the GNU Affero General Public License as | ||
| * published by the Free Software Foundation, either version 3 of the | ||
| * License, or (at your option) any later version. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU Affero General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU Affero General Public License | ||
| * along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
| * | ||
| */ | ||
|
|
||
| namespace Icewind\Streams; | ||
|
|
||
| /** | ||
| * Wrapper that counts the amount of data read and written | ||
| * | ||
| * The following options should be passed in the context when opening the stream | ||
| * [ | ||
| * 'callback' => [ | ||
| * 'source' => resource | ||
| * 'callback' => function($readCount, $writeCount){} | ||
| * ] | ||
| * ] | ||
| * | ||
| * The callback will be called when the stream is closed | ||
| */ | ||
| class CountWrapper extends Wrapper { | ||
| /** | ||
| * @var int | ||
| */ | ||
| protected $readCount = 0; | ||
|
|
||
| /** | ||
| * @var int | ||
| */ | ||
| protected $writeCount = 0; | ||
|
|
||
| /** | ||
| * @var callable | ||
| */ | ||
| protected $callback; | ||
|
|
||
| /** | ||
| * Wraps a stream with the provided callbacks | ||
| * | ||
| * @param resource $source | ||
| * @param callable $callback | ||
| * @return resource | ||
| * | ||
| * @throws \BadMethodCallException | ||
| */ | ||
| public static function wrap($source, $callback) { | ||
| if (!is_callable($callback)) { | ||
| throw new \InvalidArgumentException('Invalid or missing callback'); | ||
| } | ||
| $context = stream_context_create(array( | ||
| 'count' => array( | ||
| 'source' => $source, | ||
| 'callback' => $callback | ||
| ) | ||
| )); | ||
| return Wrapper::wrapSource($source, $context, 'callback', '\Icewind\Streams\CountWrapper'); | ||
| } | ||
|
|
||
| protected function open() { | ||
| $context = $this->loadContext('count'); | ||
| $this->callback = $context['callback']; | ||
| return true; | ||
| } | ||
|
|
||
| public function dir_opendir($path, $options) { | ||
| return $this->open(); | ||
| } | ||
|
|
||
| public function stream_open($path, $mode, $options, &$opened_path) { | ||
| return $this->open(); | ||
| } | ||
|
|
||
| public function stream_read($count) { | ||
| $result = parent::stream_read($count); | ||
| $this->readCount += strlen($result); | ||
| return $result; | ||
| } | ||
|
|
||
| public function stream_write($data) { | ||
| $result = parent::stream_write($data); | ||
| $this->writeCount += strlen($data); | ||
| return $result; | ||
| } | ||
|
|
||
| public function stream_close() { | ||
| $result = parent::stream_close(); | ||
| call_user_func($this->callback, $this->readCount, $this->writeCount); | ||
| return $result; | ||
| } | ||
| } |
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