+ /* guarantee that the udev daemon isn't pre-processing */
+ if (getuid() == 0) {
+ struct udev_ctrl *uctrl;
+
+ uctrl = udev_ctrl_new_from_socket(udev, UDEV_CTRL_SOCK_PATH);
+ if (uctrl != NULL) {
+ sigset_t mask, oldmask;
+
+ sigemptyset(&mask);
+ sigaddset(&mask, SIGUSR1);
+ sigaddset(&mask, SIGALRM);
+ sigprocmask(SIG_BLOCK, &mask, &oldmask);
+ if (udev_ctrl_send_settle(uctrl) > 0)
+ sigsuspend(&oldmask);
+ udev_ctrl_unref(uctrl);
+ }
+ }
+