%% This tests that the race condition detection between whereis/register %% is robust w.r.t. having the calls in separate functions. -module(whereis_diff_functions5). -export([start/2]). start(AnAtom, Fun) -> Pid1 = spawn(Fun), no_race(Pid1), case whereis(AnAtom) of undefined -> Pid2 = spawn(Fun), race(AnAtom, Pid2); P when is_pid(P) -> true end. no_race(Pid) -> register(master, Pid). race(Atom, Pid) -> register(Atom, Pid).