plan walks the neighbours

1 files changed, 11 insertions, 0 deletions

diff --git a/src/swarm/topology/mod.rs b/src/swarm/topology/mod.rs
index b001809..29e460f 100644
--- a/src/swarm/topology/mod.rs
+++ b/src/swarm/topology/mod.rs
@@ -195,6 +195,17 @@ pub(crate) fn is_listed(state: &AppState, peer: &str) -> bool {
 /// openings. Everyone is a neighbour until the view is known (while joining, or before
 /// any member registered), so joining works as in a full mesh. We always *answer*
 /// anyone who contacts us.
+/// Our neighbours, as the view was last computed; none while it isn't known (when
+/// everyone counts: `is_neighbour`).
+pub(crate) fn our_neighbours(state: &AppState) -> Vec<String> {
+    state
+        .neighbours
+        .read_or_recover()
+        .as_ref()
+        .map(|view| view.neighbours.iter().cloned().collect())
+        .unwrap_or_default()
+}
+
 pub(crate) fn is_neighbour(state: &AppState, peer: &str) -> bool {
     match &*state.neighbours.read_or_recover() {
         Some(view) => view.neighbours.contains(peer),