Speed up of initial peer discovery.

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "alfis"
-version = "0.3.7"
+version = "0.3.8"
 authors = ["Revertron <alfis@revertron.com>"]
 edition = "2018"
 build = "build.rs"

src/p2p/network.rs

@@ -337,7 +337,7 @@ fn handle_message(context: Arc<Mutex<Context>>, message: Message, peers: &mut Pe
                 let mut context = context.lock().unwrap();
                 let blocks_count = context.chain.height();
                 context.bus.post(crate::event::Event::NetworkStatus { nodes: active_count + 1, blocks: blocks_count });
-                if peer.is_higher(my_height) {
+                if active_count > 3 && peer.is_higher(my_height) {
                     context.chain.update_max_height(height);
                     context.bus.post(crate::event::Event::Syncing { have: my_height, height});
                     State::message(Message::GetBlock { index: my_height + 1 })