add act try connect

core/src/dht/chord.rs

@@ -100,6 +100,8 @@ pub enum RemoteAction {
     QueryForSuccessorList,
     /// Fetch successor_list and pred from successor
     QueryForSuccessorListAndPred,
+    /// Try connect to a Node
+    TryConnect(Did)
 }
 
 /// Information about successor and predecessor

core/src/message/handlers/connection.rs

@@ -168,10 +168,9 @@ impl HandleMsg<JoinDHT> for MessageHandler {
         // otherwise, it will be a `send` op
         #[cfg(feature = "experimental")]
         {
-            if let Some(l_node) = WrappedDid::new(&self.swarm, msg.did) {
-                let act = self.dht.join_then_sync(l_node).await?;
-                handle_join_dht(self, act, ctx).await?;
-            }
+            let w_did = WrappedDid::new(&self.swarm, msg.did);
+            let act = self.dht.join_then_sync(w_did).await?;
+            handle_join_dht(self, act, ctx).await?;
             Ok(())
         }
         #[cfg(not(feature = "experimental"))]

core/src/swarm.rs

@@ -85,7 +85,8 @@ impl LiveDid for WrappedDid {
                     // If the weak reference can be upgraded to a strong reference, check if it's connected.
                     transport.is_connected().await
                 } else {
-                    // If the weak reference cannot be upgraded, the Transport has been dropped, so return false.
+                    // If the weak reference cannot be upgraded,
+		    // the Transport has been dropped, so return false.
                     false
                 }
             }