add update -sync blocker

Author: SWvheerden

src/ln/msgs.rs

@@ -575,7 +575,7 @@ pub trait ChannelMessageHandler : events::MessageSendEventsProvider + Send + Syn
 	/// Handle an incoming error message from the given peer.
 	fn handle_error(&self, their_node_id: &PublicKey, msg: &ErrorMessage);
 }
-
+#[derive(PartialEq)]
 ///Enum used to keep track of syncing information/state of peer and if a sync is required
 pub enum InitSyncTracker{
 	///This indicates if a sync is required or not, false is no sync required, true is sync required but not started

src/ln/peer_handler.rs

@@ -927,7 +927,7 @@ impl<Descriptor: SocketDescriptor> PeerManager<Descriptor> {
 							let encoded_msg = encode_msg!(msg, 258);
 
 							for (ref descriptor, ref mut peer) in peers.peers.iter_mut() {
-								if !peer.channel_encryptor.is_ready_for_encryption() || peer.their_global_features.is_none() {
+								if !peer.channel_encryptor.is_ready_for_encryption() || peer.their_global_features.is_none() || peer.sync_status != msgs::InitSyncTracker::Sync(false)  {
 									continue
 								}
 								peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encoded_msg[..]));