How to communicate with GPIB in parallel processes?

I am attempting to create parallel processes where one would read from a piece of equipment connected via GPIB in a loop (every X seconds for Y amount of time) and another would allow the user to control that same equipment (sending commands) without disrupting the first process. I understand that a GPIB connection can only be opened by one application at any given time.

Or is there some way to pass variables between the different functions that are running in parallel? All the data recorded is to be compiled in on central file at the end of the test.

Thank you.