+extern struct udev_monitor *udev_monitor_new_from_socket(struct udev *udev, const char *socket_path);
+extern struct udev_monitor *udev_monitor_ref(struct udev_monitor *udev_monitor);
+extern void udev_monitor_unref(struct udev_monitor *udev_monitor);
+extern struct udev *udev_monitor_get_udev(struct udev_monitor *udev_monitor);
+extern int udev_monitor_get_fd(struct udev_monitor *udev_monitor);
+extern struct udev_device *udev_monitor_get_device(struct udev_monitor *udev_monitor);
+