1 files changed, 13 insertions, 0 deletions

diff --git a/include/sway/tree/node.h b/include/sway/tree/node.h
index 470ee3b5..e2dbcdf0 100644
--- a/include/sway/tree/node.h
+++ b/include/sway/tree/node.h
@@ -1,6 +1,8 @@
 #ifndef _SWAY_NODE_H
 #define _SWAY_NODE_H
+#include <wayland-server-core.h>
 #include <stdbool.h>
+#include <wlr/types/wlr_scene.h>
 #include "list.h"
 
 #define MIN_SANE_W 100
@@ -74,4 +76,15 @@ list_t *node_get_children(struct sway_node *node);
 
 bool node_has_ancestor(struct sway_node *node, struct sway_node *ancestor);
 
+// when destroying a sway tree, it's not known which order the tree will be
+// destroyed. To prevent freeing of scene_nodes recursing up the tree,
+// let's use this helper function to disown them to the staging node.
+void scene_node_disown_children(struct wlr_scene_tree *tree);
+
+// a helper function used to allocate tree nodes. If an allocation failure
+// occurs a flag is flipped that can be checked later to destroy a parent
+// of this scene node preventing memory leaks.
+struct wlr_scene_tree *alloc_scene_tree(struct wlr_scene_tree *parent,
+                bool *failed);
+
 #endif