internal virtual Stream CallResync(PushServerProxy.PushServerProxyInfo pushInfo, ConnectionConstraints newConstraints)
 {
     IDictionary parameters = new Dictionary<string, string>();
     parameters["LS_session"] = pushInfo.sessionId;
     if (newConstraints != null)
     {
         this.info.constraints = (ConnectionConstraints) newConstraints.Clone();
     }
     AddConnectionProperties(parameters, this.info);
     AddConstraints(parameters, this.info.constraints);
     HttpProvider provider = new HttpProvider(pushInfo.rebindAddress + "/lightstreamer/bind_session.txt");
     protLogger.Info("Opening stream connection to rebind current session");
     if (protLogger.IsDebugEnabled)
     {
         protLogger.Debug("Rebinding params: " + CollectionsSupport.ToString(parameters));
     }
     parameters["LS_silverlight_version"] = Constants.localVersion;
     bool flag = !this.info.isPolling && this.info.useGetForStreaming;
     return provider.DoHTTP(parameters, !flag);
 }
 internal virtual void CallConstrainRequest(PushServerProxy.PushServerProxyInfo pushInfo, ConnectionConstraints newConstraints)
 {
     IDictionary parameters = new Dictionary<string, string>();
     parameters["LS_session"] = pushInfo.sessionId;
     parameters["LS_op"] = "constrain";
     this.info.constraints = (ConnectionConstraints) newConstraints.Clone();
     AddConstraints(parameters, this.info.constraints);
     string controlUrl = pushInfo.controlAddress + "/lightstreamer/control.txt";
     StreamReader notBatchedAnswer = this.batchManager.GetNotBatchedAnswer(controlUrl, parameters);
     try
     {
         this.CheckAnswer(notBatchedAnswer);
     }
     catch (PushEndException)
     {
         throw new PushServerException(7);
     }
     finally
     {
         try
         {
             streamLogger.Debug("Closing constrain connection");
             notBatchedAnswer.Close();
         }
         catch (IOException exception)
         {
             streamLogger.Debug("Error closing constrain connection", exception);
         }
     }
 }