dashboard: show newly joined remote peers asap

1 files changed, 14 insertions, 2 deletions

diff --git a/src/api/dashboard/mod.rs b/src/api/dashboard/mod.rs
index 91b81d4..14321a8 100644
--- a/src/api/dashboard/mod.rs
+++ b/src/api/dashboard/mod.rs
@@ -361,9 +361,21 @@ async fn build(state: &AppState, graph: &Graph, live: bool) -> JsonValue {
         ),
         u64::try_from(state.clock_skew_warn.as_millis()).unwrap_or(u64::MAX),
     );
-    // Everyone on the map: in the member list's graph, or measured.
+    // Everyone on the map: in the member list's graph, measured, or at the other end of
+    // a link measured. A node that joined through others is linked to them before its
+    // registration reaches this node, and before the graph is computed again
+    // (`LINKS_EVERY`); it shows then, hollow (no links of its own reported).
+    let linked: BTreeSet<&String> = own
+        .iter()
+        .chain(
+            replies
+                .iter()
+                .flat_map(|(_, _, member_links)| member_links.iter()),
+        )
+        .map(|link| &link.peer)
+        .collect();
     let mut members_json = Map::new();
-    for member in graph.intended.keys().chain(measured.keys()) {
+    for member in graph.intended.keys().chain(measured.keys()).chain(linked) {
         members_json.insert(
             member.clone(),
             json!({ "alias": aliases.get(member), "self": member == local,