* * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace SebastianBergmann\Invoker; use const SIGALRM; use function call_user_func_array; use function function_exists; use function pcntl_alarm; use function pcntl_async_signals; use function pcntl_signal; use function sprintf; use Throwable; final class Invoker { private int $timeout; /** * @throws Throwable */ public function invoke(callable $callable, array $arguments, int $timeout): mixed { if (!$this->canInvokeWithTimeout()) { throw new ProcessControlExtensionNotLoadedException( 'The pcntl (process control) extension for PHP is required' ); } pcntl_signal( SIGALRM, function (): void { throw new TimeoutException( sprintf( 'Execution aborted after %d second%s', $this->timeout, $this->timeout === 1 ? '' : 's' ) ); }, true ); $this->timeout = $timeout; pcntl_async_signals(true); pcntl_alarm($timeout); try { return call_user_func_array($callable, $arguments); } finally { pcntl_alarm(0); } } public function canInvokeWithTimeout(): bool { return function_exists('pcntl_signal') && function_exists('pcntl_async_signals') && function_exists('pcntl_alarm'); } }