get swarm RTT from paths

1 files changed, 6 insertions, 0 deletions

diff --git a/src/transport/identity.rs b/src/transport/identity.rs
index 153dacc..0c4cda4 100644
--- a/src/transport/identity.rs
+++ b/src/transport/identity.rs
@@ -496,6 +496,12 @@ impl Transport for IdentityTransport {
         true
     }
 
+    /// The best path's, where messages to `peer` go.
+    fn rtt(&self, peer: &str) -> Option<Duration> {
+        let address = self.shared.proven_at(peer).into_iter().next()?;
+        self.shared.paths.rtt(&address)
+    }
+
     /// The identity layer's, and each transport's.
     fn stats(&self) -> TransportStats {
         let mut stats = self.shared.paths.stats();