hop delays

1 files changed, 3 insertions, 0 deletions

diff --git a/src/transport/mod.rs b/src/transport/mod.rs
index 426ef72..ae6b593 100644
--- a/src/transport/mod.rs
+++ b/src/transport/mod.rs
@@ -671,6 +671,9 @@ pub(crate) struct SyncEnvelope {
     /// heads, and the sender awaits no answer. A receiver it leaves level with the
     /// sender answers nothing; one that has changes the sender lacks answers with them.
     pub(crate) delivered: bool,
+    /// When the sender generated it, by its clock: the receiver takes how long it took
+    /// to come (`swarm::hop`).
+    pub(crate) sent: crate::clock::UnixMillis,
 }
 
 /// What a sync envelope carries.