[erlang-questions] How do I tell whether a process is using proc_lib?

[Dániel Szoboszlay]

Observer already implemented such a check:
https://github.com/erlang/otp/blob/maint/lib/observer/src/observer_procinfo.erl#L287-L295

BR,
Daniel

On 2014 May 21, at 16:12 , Roger Lipscombe <roger@REDACTED> wrote:

> Specifically, if I call sys:get_state(Pid) on a process that's not
> using proc_lib, and that process doesn't deal with {system, get_state}
> messages, it'll crash with a case_clause in loop (or whatever).
> 
> This is a bad thing. Can I tell that a process is a proc_lib process
> (or a gen_server, gen_fsm, etc.) before accidentally killing it?
> 
> Thanks,
> Roger.
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