Microsoft.AspNetCore.SignalR.Transports.LongPollingTransport.OnMessageReceived C# (CSharp) Метод

        protected override Task<bool> OnMessageReceived(PersistentResponse response)
        {
            if (response == null)
            {
                throw new ArgumentNullException("response");
            }

            response.Reconnect = HostShutdownToken.IsCancellationRequested;

            Task task = TaskAsyncHelper.Empty;

            if (response.Aborted)
            {
                // If this was a clean disconnect then raise the event
                task = Abort();
            }

            if (response.Terminal)
            {
                // If the response wasn't sent, send it before ending the request
                if (!_responseSent)
                {
                    // Ensure delegate continues to use the C# Compiler static delegate caching optimization.
                    return task.Then((transport, resp) => transport.Send(resp), this, response)
                               .Then(() =>
                               {
                                   _transportLifetime.Complete();

                                   return TaskAsyncHelper.False;
                               });
                }

                // Ensure delegate continues to use the C# Compiler static delegate caching optimization.
                return task.Then(() =>
                {
                    _transportLifetime.Complete();

                    return TaskAsyncHelper.False;
                });
            }

            // Mark the response as sent
            _responseSent = true;

            // Send the response and return false
            // Ensure delegate continues to use the C# Compiler static delegate caching optimization.
            return task.Then((transport, resp) => transport.Send(resp), this, response)
                       .Then(() => TaskAsyncHelper.False);
        }