66 lines
1.7 KiB
PHP
66 lines
1.7 KiB
PHP
<?php declare(strict_types=1);
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/**
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* @copyright Copyright (c) 2018 Robin Appelman <robin@icewind.nl>
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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namespace OC\Files\Stream;
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use Icewind\Streams\Wrapper;
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class CountReadStream extends Wrapper {
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/** @var int */
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private $count;
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/** @var callback */
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private $callback;
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public static function wrap($source, $callback) {
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$context = stream_context_create(array(
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'count' => array(
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'source' => $source,
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'callback' => $callback,
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)
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));
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return Wrapper::wrapSource($source, $context, 'count', self::class);
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}
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public function dir_opendir($path, $options) {
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return false;
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}
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public function stream_open($path, $mode, $options, &$opened_path) {
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$context = $this->loadContext('count');
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$this->callback = $context['callback'];
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return true;
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}
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public function stream_read($count) {
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$result = parent::stream_read($count);
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$this->count += strlen($result);
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return $result;
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}
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public function stream_close() {
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$result = parent::stream_close();
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call_user_func($this->callback, $this->count);
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return $result;
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}
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}
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