you define a function with a clause per state (and some other args including the incoming message), and each clause returns a tuple with the new state and some other stuff. the loop is part of the framework, and handles generic otp stuff like updating code in a running system.
you define a function with a clause per state (and some other args including the incoming message), and each clause returns a tuple with the new state and some other stuff. the loop is part of the framework, and handles generic otp stuff like updating code in a running system.