static void updatemons();

	wl_list_for_each(m, &mons, link) {
		m->m = m->w = *wlr_output_layout_get_box(output_layout, m->wlr_output);
		arrangelayers(m);
		arrange(m);
	}

	updatemons();

	/* Get effective monitor geometry to use for window area */
	wl_list_for_each(m, &mons, link) {
		m->m = m->w = *wlr_output_layout_get_box(output_layout, m->wlr_output);
		arrangelayers(m);
		arrange(m);
	}

	/* When adding monitors, the geometries of all monitors must be updated */
	updatemons();

updatemons()
{
	Monitor *m;
	wl_list_for_each(m, &mons, link) {
		/* Get the effective monitor geometry to use for surfaces */
		m->m = m->w = *wlr_output_layout_get_box(output_layout, m->wlr_output);
		/* Calculate the effective monitor geometry to use for clients */
		arrangelayers(m);
		/* Don't move clients to the left output when plugging monitors */
		arrange(m);
	}
}
void