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