What's gen_cb?
It's a simple server behaviour for Erlang. It smells like gen_server, but
has more flexibility and less coupling with other code. The caller can decide
whether to call the server synchronously or asynchonously, in runtime.
Usage
See src/tester.erl for basic usage. It should be simple enough once you
know gen_server :).
Limitations
Passing around functions between nodes are somewhat dangerous, unless one
can assure that the same code for the functions exists on all nodes, in the
same version. Thus using gen_cb in a distributed environment is discouraged.
TODO
- Add tests.
- Handle code change & hibernation.