push changes experiment

1 files changed, 9 insertions, 0 deletions

diff --git a/src/transport/mod.rs b/src/transport/mod.rs
index 474e386..7e5d41b 100644
--- a/src/transport/mod.rs
+++ b/src/transport/mod.rs
@@ -743,6 +743,15 @@ pub(crate) enum SyncBody {
     Message(#[serde(with = "crate::transport::wire::codec::sync_message")] SyncPayload),
     /// An Automerge sync message, deflated (`compress`): a large one, which shrank.
     Deflated(#[serde(with = "crate::transport::wire::codec::sync_message")] SyncPayload),
+    /// Changes passed on along a writer's tree as they are, with the sender's heads,
+    /// instead of an Automerge sync message (`AppState::push_changes`): where the sender
+    /// takes the message as delivered, it has everything the receiver has, and needs
+    /// none of the rest of one (`SyncSession::push`).
+    Changes {
+        #[serde(with = "crate::transport::wire::codec::change_hashes")]
+        heads: Vec<ChangeHash>,
+        changes: Vec<serde_bytes::ByteBuf>,
+    },
     /// Instead of a message too large to send in one piece: fetch these changes as a
     /// blob (`BlobId::Delta`), then sync on.
     Delta(DeltaSpec),