ActionController::Live Is it possible to check if connection is still alive?

Question

I\'m trying to implement text/event-stream using Rails 4\'s Live streaming. It works great and the only trouble I met is that I can\'t check if the connection is alive without s

Answer 1

Ok, I found two options:

1) Funny but not good (as I didn't get what sever should I use to handle 1000's of parallel connections):

begin
  ticker = Thread.new { loop { sse.write 0; sleep 5 } }
  sender = Thread.new do
    redis.subscribe(:info, :chat) do |on|
      on.message do |event, message|
        sse.write(message, :event => event.to_s)
      end
    end
  end
  ticker.join
  sender.join
rescue IOError
ensure
  Thread.kill(ticker) if ticker
  Thread.kill(sender) if sender
  track.close
  sse.close
end

2) Awesome. To use Goliath server. It turned out that it can check if connection is lost without any ticker. On the way to Goliath found Cramp. It's lightweight and hopefully fast, but seems to be abandonned.