64 lines
1.6 KiB
PHP
64 lines
1.6 KiB
PHP
<?php
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declare(strict_types=1);
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/**
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* @copyright Copyright (c) 2021 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 Icewind\SMB;
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class StringBuffer {
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/** @var string */
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private $buffer = "";
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/** @var int */
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private $pos = 0;
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public function clear(): void {
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$this->buffer = "";
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$this->pos = 0;
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}
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public function push(string $data): int {
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$this->buffer = $this->flush() . $data;
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return strlen($data);
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}
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public function remaining(): int {
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return strlen($this->buffer) - $this->pos;
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}
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public function read(int $count): string {
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$chunk = substr($this->buffer, $this->pos, $count);
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$this->pos += strlen($chunk);
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return $chunk;
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}
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public function flush(): string {
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if ($this->pos === 0) {
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$remaining = $this->buffer;
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} else {
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$remaining = substr($this->buffer, $this->pos);
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}
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$this->clear();
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return $remaining;
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}
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}
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