tal: allow notifiers on NULL.

[ccan] / ccan / aga / private.h

diff --git a/ccan/aga/private.h b/ccan/aga/private.h
index ff9f189441a27a2ed03f22feda17c1fb03539ce8..3095d3bca032fd27ceb903105b154c1d9d57f5b2 100644 (file)
--- a/ccan/aga/private.h
+++ b/ccan/aga/private.h
@@ -3,6 +3,8 @@
 #define CCAN_AGA_PRIVATE_H
 
 int aga_start(struct aga_graph *g);
+bool aga_node_needs_update(const struct aga_graph *g,
+                          const struct aga_node *node);
 bool aga_update_node(const struct aga_graph *g, struct aga_node *node);
 bool aga_check_state(const struct aga_graph *g);
 void aga_fail(struct aga_graph *g, int error);