tree latency measured

1 files changed, 10 insertions, 0 deletions

diff --git a/src/transport/sim.rs b/src/transport/sim.rs
index d218d5c..12f3885 100644
--- a/src/transport/sim.rs
+++ b/src/transport/sim.rs
@@ -170,6 +170,16 @@ impl SimNet {
             .insert((from.to_owned(), to.to_owned()), params);
     }
 
+    /// The mean delay from `from` to `to` (one way): its link's, or the default's.
+    pub(crate) fn mean_delay(&self, from: &str, to: &str) -> Duration {
+        let inner = self.lock();
+        let link = inner
+            .links
+            .get(&(from.to_owned(), to.to_owned()))
+            .unwrap_or(&inner.default_link);
+        (link.delay.0 + link.delay.1) / 2
+    }
+
     /// Everything to and from `id` is lost until [`bring_up`](Self::bring_up), including
     /// messages already on their way. The node itself keeps running.
     pub(crate) fn take_down(&self, id: &str) {