private function __getProcessOwner()
    {
        if (function_exists('posix_getpwuid')) {
            $a = posix_getpwuid(posix_getuid());

            return $a['name'];
        } else {
            $user = trim(exec('whoami', $o, $code));
            if ($code === 0) {
                return $user;
            }

            return false;
        }

        return false;
    }