Created
March 31, 2021 18:39
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trigger-otp-24-persistent-term-bug.erl
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| N = 8000, | |
| Terms = [{{a, list_to_atom(integer_to_list(I))}, I} || I <- lists:seq(1, N)], | |
| Add = fun Add([]) -> ok; Add([{K, V} | T]) -> persistent_term:put(K, V), Add(T) end, | |
| Len = fun() -> length(persistent_term:get()) end, | |
| Random = fun() -> PTerms = [{X, Y} || {{a, X}, Y} <- persistent_term:get()], lists:nth(rand:uniform(length(PTerms)), PTerms) end, | |
| DelRandom = fun() -> Key = element(1, Random()), persistent_term:erase({a, Key}), Key end, | |
| EraserFun = fun() -> Eraser = fun Eraser() -> receive _ -> Eraser() after 1 -> DelRandom(), Eraser() end end, Eraser() end, | |
| WriterFun = fun() -> Writer = fun Writer() -> receive _ -> Writer() after 1 -> Add(Terms), Writer() end end, Writer() end, | |
| ReportFun = fun() -> Report = fun Report() -> io:format("there are ~w persistent terms~n", [Len()]), receive _ -> Report() after 1000 -> Report() end end, Report() end, | |
| Add(Terms), | |
| ReportPid = spawn_link(ReportFun), | |
| WriterPid = spawn_link(WriterFun), | |
| EraserPids = [spawn_link(EraserFun) || _ <- lists:seq(1, N)], | |
| ok. |
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