Is it possible to make a listener in C++?

Hello! Sorry if this is a dumb question, but is it possible to do things that can be done in a Lua Listener in C++?

For example, I have a lua listener that grabs protofield data for each packet and saves them to a CSV file, then opens an external python application.

Is it possible to write a listener in C++? I don't think I can do the above in a dissector since a dissector occurs once per frame.