[Click] Args::read_or_set

[karthick m]

Hi,

   I want to implement my own publish-subscribe architecture in a small
scale testbed (say with 10 machines) using click router. Could anyone
please tell me how to start with click router. I have visited the click
router main website and also some sample codes. But I am facing difficulty
with that. For Omnet++, we have tictoc tutorial. Do we have something
similar for click router?  Please let me know.