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@@ -82,6 +82,30 @@ havoc_ssl(_) ->
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ok = do_connect(1, ranch_ssl, ranch:get_port(Name), 1000),
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ok = ranch:stop_listener(Name).
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+havoc_embedded(_) ->
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+ doc("Start an embedded TCP listener, establish a hundred connections, "
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+ "run havoc, confirm we can still connect."),
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+ %% Start embedded listener.
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+ Name = name(),
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+ {ok, SupPid} = embedded_sup:start_link(),
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+ {ok, _} = embedded_sup:start_listener(SupPid, Name,
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+ ranch_tcp, #{}, echo_protocol, []),
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+ %% Establish a hundred connections.
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+ ok = do_connect(100, ranch_tcp, ranch:get_port(Name), 1000),
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+ %% Set restart frequency of ranch_sup and embedded_sup.
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+ do_set_sup_frequencies([ranch_sup, SupPid], 999999, 1),
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+ %% Run havoc.
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+ havoc:on([{avg_wait, 100}, {deviation, 0}, {applications, [ranch]},
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+ {supervisors, [SupPid]}, supervisor, {prekill_callback, fun do_log/1}]),
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+ timer:sleep(10000),
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+ havoc:off(),
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+ timer:sleep(1000),
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+ %% Confirm we can still connect.
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+ ok = do_connect(1, ranch_tcp, ranch:get_port(Name), 1000),
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+ ok = embedded_sup:stop_listener(SupPid, Name),
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+ embedded_sup:stop(SupPid),
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+ ok.
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+
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do_set_sup_frequencies(Sups, Intensity, Period) ->
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StateFun = fun (S) -> setelement(7, setelement(6, S, Intensity), Period) end,
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_ = [sys:replace_state(Sup, StateFun) || Sup <- Sups],
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juhlig