+static void *get_new_board_cb(void *closure)
+{
+ afb_req_t req = closure;
+ struct board *board = get_new_board();
+ afb_req_subscribe(req, board->event);
+ return board;
+}
+
+static void release_board_cb(void *closure)
+{
+ struct board *board = closure;
+ return release_board(board);
+}
+