suspect paths

1 files changed, 7 insertions, 0 deletions

diff --git a/src/transport/mod.rs b/src/transport/mod.rs
index eeb9d34..474e386 100644
--- a/src/transport/mod.rs
+++ b/src/transport/mod.rs
@@ -1004,6 +1004,13 @@ pub(crate) trait Transport: Send + Sync {
         None
     }
 
+    /// What went to `peer` went unanswered for a while (`swarm::reach`): the path in use
+    /// may take messages and drop them. The paths layer tries the peer's other paths
+    /// first and pings them all now (`paths::Paths::suspect`). By default nothing.
+    fn suspect(&self, peer: &str) {
+        let _ = peer;
+    }
+
     /// Whether the transport answers PINGs with PONGs itself (the paths layer,
     /// `transport::paths`); if not (a bare transport, in tests), the node does. By
     /// default not.