Engine

- If a `Request` is not expecting a response then do not call `dequeue()` on the `Queue` registered nor `process`byte[])`
- Added a TODO comment

source/tasky/engine.d

@@ -14,6 +14,8 @@ public class Engine
 
     // TODO: Continue working on this
 
+    // TODO: Allow registering ResponseAnonymous with handlers etc
+
     /** 
      * Takes a request and sends it through to the endpoint
      * afterwhich we block for a response and when we get one
@@ -35,11 +37,16 @@ public class Engine
         /* Send the message */
         tManager.sendMessage(tReq);
 
-        /* Await for a response */
-        byte[] resp = newQueue.dequeue().getPayload();
+        /* Does this Request expect a response? */
+        // TODO: We need not register the queue even if this is the case
+        if(req.expectsResponse())
+        {
+            /* Await for a response */
+            byte[] resp = newQueue.dequeue().getPayload();
 
-        /* Run the response handler with the response */
-        req.process(resp);
+            /* Run the response handler with the response */
+            req.process(resp);
+        }
 
         /* De-register the queue */
         tManager.releaseQueue(newQueue);