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%% This tests the presence of possible races due to a register/whereis
%% combination in a recursive function.
-module(whereis_rec_function3).
-export([test/0]).
test() ->
start(undefined, second, mod:f(), self()).
start(AnAtom, NextAtom, Fun, Id) ->
case AnAtom of
undefined -> register(start, Id);
_ -> register(AnAtom, Id)
end,
Pid =
case whereis(NextAtom) of
undefined -> spawn(Fun);
P1 when is_pid(P1) -> P1
end,
case whereis(NextAtom) of
undefined ->
case Pid =:= self() of
true -> ok;
false -> start(NextAtom, mod:next(), Pid, Id), io:format("", [])
end;
P2 when is_pid(P2) -> ok
end.
|
