persistence.py 文件源码

def _check_systemd(self):
        if self._user:
            systemd_socket = '/run/user/{}/systemd/private'.format(self._uid)
        else:
            systemd_socket = '/run/systemd/private'

        try:
            if not os.path.exists(systemd_socket) and stat.S_ISSOCK(os.stat(systemd_socket).st_mode):
                self._systemd_error = 'No systemd socket found'
                return
        except OSError as e:
            self._systemd_error = str(e)
            return

        self._is_systemd = self._check_systemd_reval([])
        if not self._is_systemd:
            self._systemd_error = 'Systemd is not available or not working properly'