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Support timeout for stopping pools #55

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@terry-xiaoyu terry-xiaoyu requested a review from zmstone November 26, 2024 12:38
@terry-xiaoyu terry-xiaoyu force-pushed the handle-stop-pool-timeout branch from bdfff99 to 6293cdf Compare November 26, 2024 12:57
@terry-xiaoyu terry-xiaoyu changed the title Handle stop pool timeout Support timeout for stopping pools Nov 26, 2024
Comment on lines 135 to 147
case process_info(Pid, [dictionary, status, current_function]) of
[{dictionary, Dicts}, {status, Status}, {current_function, CurrFunc}] ->
case proplists:get_value('$initial_call', Dicts) of
{supervisor, ecpool_pool_sup, _} ->
case {Status, CurrFunc} of
{waiting, {proc_lib, _, _}} ->
{ok, Pid};
_ ->
{error, not_stuck_in_start}
end;
_ ->
search_ecpool_pool_sup_process(Rest)
end;
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this is too error-prone, can we force the potential processes to be killed with a special key in processes dictionary ?
e.g. put('$ecpool_force_kill', true).

and with a OTP_RELEASE compile switch, we can use process label for the same purpose.
https://www.erlang.org/doc/apps/stdlib/proc_lib.html#set_label/1

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Here I want to only kill the ecpool_pool_sup processes stuck in its init() callbacks.
In this case it should be calling proc_lib:sync_start/2 (OTP 26+) or proc_lib:sync_start_link/2 (OTP 24), so I'd like to match {current_function, [{proc_lib, _, _}]} here.

@terry-xiaoyu terry-xiaoyu requested a review from zmstone November 26, 2024 16:58
@terry-xiaoyu terry-xiaoyu marked this pull request as draft November 27, 2024 02:31
@terry-xiaoyu terry-xiaoyu force-pushed the handle-stop-pool-timeout branch from 5530c1d to 7fec061 Compare November 27, 2024 06:58
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2 participants