bump number of heads in keepalive messages

Instead of arbitrarily limiting the number to 16, allow filling
keepalive messages as long as they don't cause mycelium to chunk it.

1 files changed, 4 insertions, 0 deletions

diff --git a/src/state.rs b/src/state.rs
index 8ff8b9d..4d82150 100644
--- a/src/state.rs
+++ b/src/state.rs
@@ -126,6 +126,9 @@ pub(crate) struct PeerState {
 
     /// Whether the peer said, in its most recent keepalive, that it would sync with us.
     pub(crate) syncs_with_us: Option<bool>,
+
+    /// How many heads its most recent keepalive listed (None if it sent a digest).
+    pub(crate) reported_heads: Option<usize>,
 }
 
 /// One Automerge sync with a peer, from a reset to the next. Everything a reset must
@@ -330,6 +333,7 @@ impl PeerState {
             epoch: None,
             reports_ready: None,
             syncs_with_us: None,
+            reported_heads: None,
         }
     }