diff options
Diffstat (limited to 'src/swarm/sync.rs')
| -rw-r--r-- | src/swarm/sync.rs | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/src/swarm/sync.rs b/src/swarm/sync.rs index c969678..5100b98 100644 --- a/src/swarm/sync.rs +++ b/src/swarm/sync.rs @@ -603,10 +603,15 @@ pub(crate) async fn handle_sync( let heads_after = replica.heads().to_vec(); if delivered { // Level with the sender now, which takes the message as delivered: - // nothing to answer (`SyncSession::answered_as_delivered`). - peer_state + // nothing to answer (`SyncSession::answered_as_delivered`). Unless it is + // behind us: then the answer brings it what it lacks. + let behind = peer_state.sync.peer_behind(&replica.doc, &heads_after); + let answered = peer_state .sync .answered_as_delivered(&replica.doc, &heads_after); + if behind && !answered { + stats.answering_behind(); + } } stats.heads_seen(heads_after.len()); let changed = heads_after != heads_before; |