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<?php
/**
* This file is part of the sj-i/php-profiler package.
*
* (c) sji <[email protected]>
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
declare(strict_types=1);
namespace PhpProfiler\Lib\Loop\LoopMiddleware;
use PhpProfiler\Lib\Console\EchoBackCanceller;
use PhpProfiler\Lib\Loop\LoopMiddlewareInterface;
final class KeyboardCancelMiddleware implements LoopMiddlewareInterface
{
/** @var resource */
private $keyboard_input;
public function __construct(
private string $cancel_key,
private EchoBackCanceller $echo_back_canceller,
private LoopMiddlewareInterface $chain
) {
$this->keyboard_input = fopen('php://stdin', 'r');
stream_set_blocking($this->keyboard_input, false);
}
public function invoke(): bool
$key = fread($this->keyboard_input, 1);
if ($key === $this->cancel_key) {
return false;
return $this->chain->invoke();
sj-i /
php-profiler
