[Discuss-gnuradio] issue about message port of grextras

[Damon]

Hi all,

Recently I am learning the grextras project. I am confused about the
message port which is designed in grextras.
Why will we not get a error when the message ports do not connect to
other message ports? I thought those port actually is data stream ports,
so they should be connected to other ports.

Best regards,
Damon