✏️ Editing: LscpuPhysicalFinder.php Read Only

<?php

/*
 * This file is part of the Fidry CPUCounter Config package.
 *
 * (c) Théo FIDRY <theo.fidry@gmail.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
declare (strict_types=1);
namespace RectorPrefix202411\Fidry\CpuCoreCounter\Finder;

use function count;
use function explode;
use function is_array;
use function preg_grep;
use function strtok;
use const PHP_EOL;
/**
 * The number of physical processors.
 *
 * @see https://stackoverflow.com/a/23378780/5846754
 */
final class LscpuPhysicalFinder extends ProcOpenBasedFinder
{
    public function toString() : string
    {
        return 'LscpuPhysicalFinder';
    }
    public function getCommand() : string
    {
        return 'lscpu -p';
    }
    protected function countCpuCores(string $process) : ?int
    {
        $lines = explode(PHP_EOL, $process);
        $actualLines = preg_grep('/^\\d+/', $lines);
        if (!is_array($actualLines)) {
            return null;
        }
        $cores = [];
        foreach ($actualLines as $line) {
            strtok($line, ',');
            $core = strtok(',');
            if (\false === $core) {
                continue;
            }
            $cores[$core] = \true;
        }
        unset($cores['-']);
        $count = count($cores);
        return 0 === $count ? null : $count;
    }
}

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