Viewing file:  LscpuLogicalFinder.php (1.06 KB) -rw-r--r--
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<?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 Fidry\CpuCoreCounter\Finder;
use function count;
use function explode;
use function is_array;
use function preg_grep;
use const PHP_EOL;
/**
* The number of logical cores.
*
* @see https://stackoverflow.com/a/23378780/5846754
*/
final class LscpuLogicalFinder extends ProcOpenBasedFinder
{
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;
}
$count = count($actualLines);
return 0 === $count ? null : $count;
}
public function toString(): string
{
return 'LscpuLogicalFinder';
}
}
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