­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ * * 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 RectorPrefix202411\Fidry\CpuCoreCounter\Executor\ProcessExecutor; use RectorPrefix202411\Fidry\CpuCoreCounter\Executor\ProcOpenExecutor; use function filter_var; use function function_exists; use function is_int; use function sprintf; use function trim; use const FILTER_VALIDATE_INT; use const PHP_EOL; abstract class ProcOpenBasedFinder implements CpuCoreFinder { /** * @var ProcessExecutor */ private $executor; public function __construct(?ProcessExecutor $executor = null) { $this->executor = $executor ?? new ProcOpenExecutor(); } public function diagnose() : string { if (!function_exists('proc_open')) { return 'The function "proc_open" is not available.'; } $command = $this->getCommand(); $output = $this->executor->execute($command); if (null === $output) { return sprintf('Failed to execute the command "%s".', $command); } [$stdout, $stderr] = $output; $failed = '' !== trim($stderr); return $failed ? sprintf('Executed the command "%s" which wrote the following output to the STDERR:%s%s%sWill return "null".', $command, PHP_EOL, $stderr, PHP_EOL) : sprintf('Executed the command "%s" and got the following (STDOUT) output:%s%s%sWill return "%s".', $command, PHP_EOL, $stdout, PHP_EOL, $this->countCpuCores($stdout) ?? 'null'); } /** * @return positive-int|null */ public function find() : ?int { $output = $this->executor->execute($this->getCommand()); if (null === $output) { return null; } [$stdout, $stderr] = $output; $failed = '' !== trim($stderr); return $failed ? null : $this->countCpuCores($stdout); } /** * @internal * * @return positive-int|null */ protected function countCpuCores(string $process) : ?int { $cpuCount = filter_var($process, FILTER_VALIDATE_INT); return is_int($cpuCount) && $cpuCount > 0 ? $cpuCount : null; } protected abstract function getCommand() : string; }