Storing multiple structures in gen_server state

Question

How does one store multiple structures/items in a gen_server's state?

I want to store a reference to an ets table, as well as a queue and a counter(integer).

Thanks

Answer 1

使用记录？

-record(state, {table, queue, counter}).

Answer 2

A gen_server's state is just an arbitrary erlang term. Use whatever is most convenient (a record, a tuple, a list, a dict, whatever)