+int manager_spawn_autovt(Manager *m, unsigned int vtnr) {
+ _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+ char name[sizeof("autovt@tty.service") + DECIMAL_STR_MAX(unsigned int)];
+ int r;
+
+ assert(m);
+ assert(vtnr >= 1);
+
+ if (vtnr > m->n_autovts &&
+ vtnr != m->reserve_vt)
+ return 0;
+
+ if (vtnr != m->reserve_vt) {
+ /* If this is the reserved TTY, we'll start the getty
+ * on it in any case, but otherwise only if it is not
+ * busy. */
+
+ r = vt_is_busy(vtnr);
+ if (r < 0)
+ return r;
+ else if (r > 0)
+ return -EBUSY;
+ }
+
+ snprintf(name, sizeof(name), "autovt@tty%u.service", vtnr);
+ r = sd_bus_call_method(
+ m->bus,
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "StartUnit",
+ &error,
+ NULL,
+ "ss", name, "fail");
+ if (r < 0)
+ log_error("Failed to start %s: %s", name, bus_error_message(&error, r));
+
+ return r;
+}
+#endif // 0
+