+ assert(bus);
+ assert(args);
+
+ dbus_error_init(&error);
+
+ if (strv_length(args) % 2 != 0) {
+ log_error("Expecting an uneven number of arguments!");
+ return -EINVAL;
+ }
+
+ n = unit_name_mangle(args[1]);
+ if (!n)
+ return log_oom();
+
+ m = dbus_message_new_method_call(
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "SetUnitControlGroupAttributes");
+ if (!m)
+ return log_oom();
+
+ dbus_message_iter_init_append(m, &iter);
+ if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &n) ||
+ !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(ss)", &sub))
+ return log_oom();
+
+ STRV_FOREACH_PAIR(x, y, args + 2) {
+ if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2) ||
+ !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, x) ||
+ !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, y) ||
+ !dbus_message_iter_close_container(&sub, &sub2))
+ return log_oom();
+ }
+
+ runtime = arg_runtime ? "runtime" : "persistent";
+ if (!dbus_message_iter_close_container(&iter, &sub) ||
+ !dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &runtime))
+ return log_oom();
+
+ reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
+ if (!reply) {
+ log_error("Failed to issue method call: %s", bus_error_message(&error));
+ dbus_error_free(&error);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int get_cgroup_attr(DBusConnection *bus, char **args) {
+ _cleanup_dbus_message_unref_ DBusMessage *m = NULL, *reply = NULL;
+ DBusError error;
+ DBusMessageIter iter;
+ int r;
+ _cleanup_free_ char *n = NULL;
+ _cleanup_strv_free_ char **list = NULL;
+ char **a;
+
+ assert(bus);
+ assert(args);
+
+ dbus_error_init(&error);
+
+ n = unit_name_mangle(args[1]);
+ if (!n)
+ return log_oom();
+
+ m = dbus_message_new_method_call(
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "GetUnitControlGroupAttributes");
+ if (!m)
+ return log_oom();
+
+ dbus_message_iter_init_append(m, &iter);
+ if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &n))
+ return log_oom();
+
+ r = bus_append_strv_iter(&iter, args + 2);
+ if (r < 0)
+ return log_oom();
+
+ reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
+ if (!reply) {
+ log_error("Failed to issue method call: %s", bus_error_message(&error));
+ dbus_error_free(&error);
+ return -EIO;
+ }
+
+ dbus_message_iter_init(reply, &iter);
+ r = bus_parse_strv_iter(&iter, &list);
+ if (r < 0) {
+ log_error("Failed to parse value list.");
+ return r;
+ }
+
+ STRV_FOREACH(a, list) {
+ if (endswith(*a, "\n"))
+ fputs(*a, stdout);
+ else
+ puts(*a);
+ }
+
+ return 0;