DrivenEngine channels are now shared_ptr

luprex/core/cpp/lpxserver.cpp

@@ -10,7 +10,7 @@
 class Client {
 public:
     int64_t actor_id_;
-    UniqueChannel channel_;
+    SharedChannel channel_;
     UniqueWorld sync_;
 };
 using UniqueClient = std::unique_ptr<Client>;
@@ -151,7 +151,7 @@ public:
 
         // Check for new incoming channels, set up client structures.
         while (true) {
-            UniqueChannel chan = new_incoming_channel();
+            SharedChannel chan = new_incoming_channel();
             if (chan == nullptr) break;
             Client *client = new Client;
             client->actor_id_ = master_->create_login_actor();