X-Git-Url: http://git.ozlabs.org/?a=blobdiff_plain;f=ccan%2Faga%2Faga.c;h=a6e0539dc8ee53502f3d36c3428fd29d838b7a1a;hb=42d7b648bd295e2204c5d064256fb1ad382b41c9;hp=f27f9f3034e7a34c6efc0f6a830769d3f28e3d08;hpb=3b7409ea08a7d1643bc7de31ece63e20b89f319b;p=ccan

diff --git a/ccan/aga/aga.c b/ccan/aga/aga.c
index f27f9f30..a6e0539d 100644
--- a/ccan/aga/aga.c
+++ b/ccan/aga/aga.c
@@ -15,7 +15,7 @@ void aga_init_graph_(struct aga_graph *g,
 		     aga_edge_info_fn edge_info)
 {
 	g->sequence = 0;
-	g->error = 0;
+	g->error = AGA_ERR_NONE;
 
 	g->first_edge = first_edge;
 	g->next_edge = next_edge;
@@ -54,13 +54,19 @@ bool aga_check_state(const struct aga_graph *g)
 void aga_finish(struct aga_graph *g)
 {
 	assert(g->sequence & 1);
-	g->error = 0;
+	g->error = AGA_ERR_NONE;
 	g->sequence++;
 }
 
+bool aga_node_needs_update(const struct aga_graph *g,
+			   const struct aga_node *node)
+{
+	return (node->sequence != g->sequence);
+}
+
 bool aga_update_node(const struct aga_graph *g, struct aga_node *node)
 {
-	if (node->sequence == g->sequence)
+	if (!aga_node_needs_update(g, node))
 		return false;
 
 	node->sequence = g->sequence;
@@ -87,6 +93,7 @@ int aga_edge_info(const struct aga_graph *g, const struct aga_node *n,
 	int rc;
 
 	ei->to = NULL;
+	ei->icost = 1;
 	rc = g->edge_info(g, n, e, ei);
 	assert(rc <= 0);
 	return rc;