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2151-stdlib-optimize-gen_server-by-caching-call...
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File 2151-stdlib-optimize-gen_server-by-caching-callback-funct.patch of Package erlang
From f0874ffb4af5af284fa3f139b2421b4ee93a5659 Mon Sep 17 00:00:00 2001 From: Fredrik Frantzen <frazze@erlang.org> Date: Thu, 17 Mar 2022 17:31:56 +0100 Subject: [PATCH] stdlib: optimize gen_server by caching callback functions --- lib/stdlib/src/gen_server.erl | 297 ++++++++++++++++++++-------------- 1 file changed, 176 insertions(+), 121 deletions(-) diff --git a/lib/stdlib/src/gen_server.erl b/lib/stdlib/src/gen_server.erl index af5e04f78a..d920aa9fcd 100644 --- a/lib/stdlib/src/gen_server.erl +++ b/lib/stdlib/src/gen_server.erl @@ -147,6 +147,22 @@ ( (X) =:= infinity orelse ( is_integer(X) andalso (X) >= 0 ) ) ). +-record(callback_cache,{module :: module(), + handle_call :: fun((Request :: term(), From :: from(), State :: term()) -> + {reply, Reply :: term(), NewState :: term()} | + {reply, Reply :: term(), NewState :: term(), timeout() | hibernate | {continue, term()}} | + {noreply, NewState :: term()} | + {noreply, NewState :: term(), timeout() | hibernate | {continue, term()}} | + {stop, Reason :: term(), Reply :: term(), NewState :: term()} | + {stop, Reason :: term(), NewState :: term()}), + handle_cast :: fun((Request :: term(), State :: term()) -> + {noreply, NewState :: term()} | + {noreply, NewState :: term(), timeout() | hibernate | {continue, term()}} | + {stop, Reason :: term(), NewState :: term()}), + handle_info :: fun((Info :: timeout | term(), State :: term()) -> + {noreply, NewState :: term()} | + {noreply, NewState :: term(), timeout() | hibernate | {continue, term()}} | + {stop, Reason :: term(), NewState :: term()})}). %%%========================================================================= %%% API %%%========================================================================= @@ -783,7 +799,8 @@ enter_loop(Mod, Options, State, ServerName, TimeoutOrHibernate) Parent = gen:get_parent(), Debug = gen:debug_options(Name, Options), HibernateAfterTimeout = gen:hibernate_after(Options), - loop(Parent, Name, State, Mod, TimeoutOrHibernate, HibernateAfterTimeout, Debug); + CbCache = create_callback_cache(Mod), + loop(Parent, Name, State, CbCache, TimeoutOrHibernate, HibernateAfterTimeout, Debug); %% enter_loop(Mod, Options, State, ServerName, {continue, _}=Continue) when is_atom(Mod), is_list(Options) -> @@ -791,7 +808,8 @@ enter_loop(Mod, Options, State, ServerName, {continue, _}=Continue) Parent = gen:get_parent(), Debug = gen:debug_options(Name, Options), HibernateAfterTimeout = gen:hibernate_after(Options), - loop(Parent, Name, State, Mod, Continue, HibernateAfterTimeout, Debug). + CbCache = create_callback_cache(Mod), + loop(Parent, Name, State, CbCache, Continue, HibernateAfterTimeout, Debug). %%%======================================================================== %%% Gen-callback functions @@ -810,19 +828,19 @@ init_it(Starter, Parent, Name0, Mod, Args, Options) -> Name = gen:name(Name0), Debug = gen:debug_options(Name, Options), HibernateAfterTimeout = gen:hibernate_after(Options), - + CbCache = create_callback_cache(Mod), case init_it(Mod, Args) of {ok, {ok, State}} -> proc_lib:init_ack(Starter, {ok, self()}), - loop(Parent, Name, State, Mod, infinity, HibernateAfterTimeout, Debug); + loop(Parent, Name, State, CbCache, infinity, HibernateAfterTimeout, Debug); {ok, {ok, State, TimeoutOrHibernate}} when ?is_timeout(TimeoutOrHibernate); TimeoutOrHibernate =:= hibernate -> proc_lib:init_ack(Starter, {ok, self()}), - loop(Parent, Name, State, Mod, TimeoutOrHibernate, HibernateAfterTimeout, Debug); + loop(Parent, Name, State, CbCache, TimeoutOrHibernate, HibernateAfterTimeout, Debug); {ok, {ok, State, {continue, _}=Continue}} -> proc_lib:init_ack(Starter, {ok, self()}), - loop(Parent, Name, State, Mod, Continue, HibernateAfterTimeout, Debug); + loop(Parent, Name, State, CbCache, Continue, HibernateAfterTimeout, Debug); {ok, {stop, Reason}} -> %% For consistency, we must make sure that the %% registered name (if any) is unregistered before @@ -848,10 +866,10 @@ init_it(Starter, Parent, Name0, Mod, Args, Options) -> end. init_it(Mod, Args) -> try - {ok, Mod:init(Args)} + {ok, Mod:init(Args)} catch - throw:R -> {ok, R}; - Class:R:S -> {'EXIT', Class, R, S} + throw:R -> {ok, R}; + Class:R:S -> {'EXIT', Class, R, S} end. %%%======================================================================== @@ -861,58 +879,68 @@ init_it(Mod, Args) -> %%% The MAIN loop. %%% --------------------------------------------------- -loop(Parent, Name, State, Mod, {continue, Continue} = Msg, HibernateAfterTimeout, Debug) -> - Reply = try_dispatch(Mod, handle_continue, Continue, State), +loop(Parent, Name, State, CbCache, {continue, Continue} = Msg, HibernateAfterTimeout, Debug) -> + Reply = try_handle_continue(CbCache, Continue, State), case Debug of - [] -> - handle_common_reply(Reply, Parent, Name, undefined, Msg, Mod, - HibernateAfterTimeout, State); - _ -> - Debug1 = sys:handle_debug(Debug, fun print_event/3, Name, Msg), - handle_common_reply(Reply, Parent, Name, undefined, Msg, Mod, - HibernateAfterTimeout, State, Debug1) + [] -> + handle_common_reply(Reply, Parent, Name, undefined, Msg, CbCache, + HibernateAfterTimeout, State); + _ -> + Debug1 = sys:handle_debug(Debug, fun print_event/3, Name, Msg), + handle_common_reply(Reply, Parent, Name, undefined, Msg, CbCache, + HibernateAfterTimeout, State, Debug1) end; -loop(Parent, Name, State, Mod, hibernate, HibernateAfterTimeout, Debug) -> +loop(Parent, Name, State, CbCache, hibernate, HibernateAfterTimeout, Debug) -> + Mod = CbCache#callback_cache.module, proc_lib:hibernate(?MODULE,wake_hib,[Parent, Name, State, Mod, HibernateAfterTimeout, Debug]); -loop(Parent, Name, State, Mod, infinity, HibernateAfterTimeout, Debug) -> - receive - Msg -> - decode_msg(Msg, Parent, Name, State, Mod, infinity, HibernateAfterTimeout, Debug, false) - after HibernateAfterTimeout -> - loop(Parent, Name, State, Mod, hibernate, HibernateAfterTimeout, Debug) - end; +loop(Parent, Name, State, CbCache, infinity, HibernateAfterTimeout, Debug) -> + receive + Msg -> + decode_msg(Msg, Parent, Name, State, CbCache, infinity, HibernateAfterTimeout, Debug, false) + after HibernateAfterTimeout -> + loop(Parent, Name, State, CbCache, hibernate, HibernateAfterTimeout, Debug) + end; -loop(Parent, Name, State, Mod, Time, HibernateAfterTimeout, Debug) -> +loop(Parent, Name, State, CbCache, Time, HibernateAfterTimeout, Debug) -> Msg = receive - Input -> - Input - after Time -> - timeout - end, - decode_msg(Msg, Parent, Name, State, Mod, Time, HibernateAfterTimeout, Debug, false). + Input -> + Input + after Time -> + timeout + end, + decode_msg(Msg, Parent, Name, State, CbCache, Time, HibernateAfterTimeout, Debug, false). + +-spec create_callback_cache(module()) -> #callback_cache{}. +create_callback_cache(Mod) -> + #callback_cache{module = Mod, + handle_call = fun Mod:handle_call/3, + handle_cast = fun Mod:handle_cast/2, + handle_info = fun Mod:handle_info/2}. wake_hib(Parent, Name, State, Mod, HibernateAfterTimeout, Debug) -> Msg = receive - Input -> - Input - end, - decode_msg(Msg, Parent, Name, State, Mod, hibernate, HibernateAfterTimeout, Debug, true). + Input -> + Input + end, + CbCache = create_callback_cache(Mod), + decode_msg(Msg, Parent, Name, State, CbCache, hibernate, HibernateAfterTimeout, Debug, true). -decode_msg(Msg, Parent, Name, State, Mod, Time, HibernateAfterTimeout, Debug, Hib) -> +decode_msg(Msg, Parent, Name, State, CbCache, Time, HibernateAfterTimeout, Debug, Hib) -> case Msg of - {system, From, Req} -> - sys:handle_system_msg(Req, From, Parent, ?MODULE, Debug, - [Name, State, Mod, Time, HibernateAfterTimeout], Hib); - {'EXIT', Parent, Reason} -> - terminate(Reason, ?STACKTRACE(), Name, undefined, Msg, Mod, State, Debug); - _Msg when Debug =:= [] -> - handle_msg(Msg, Parent, Name, State, Mod, HibernateAfterTimeout); - _Msg -> - Debug1 = sys:handle_debug(Debug, fun print_event/3, - Name, {in, Msg}), - handle_msg(Msg, Parent, Name, State, Mod, HibernateAfterTimeout, Debug1) + {system, From, Req} -> + sys:handle_system_msg(Req, From, Parent, ?MODULE, Debug, + [Name, State, CbCache, Time, HibernateAfterTimeout], Hib); + {'EXIT', Parent, Reason} -> + #callback_cache{module = Mod} = CbCache, + terminate(Reason, ?STACKTRACE(), Name, undefined, Msg, Mod, State, Debug); + _Msg when Debug =:= [] -> + handle_msg(Msg, Parent, Name, State, CbCache, HibernateAfterTimeout); + _Msg -> + Debug1 = sys:handle_debug(Debug, fun print_event/3, + Name, {in, Msg}), + handle_msg(Msg, Parent, Name, State, CbCache, HibernateAfterTimeout, Debug1) end. %%% --------------------------------------------------- @@ -1113,60 +1141,80 @@ start_monitor(Node, Name) when is_atom(Node), is_atom(Name) -> %% stacktraces. %% --------------------------------------------------- -try_dispatch({'$gen_cast', Msg}, Mod, State) -> - try_dispatch(Mod, handle_cast, Msg, State); -try_dispatch(Info, Mod, State) -> - try_dispatch(Mod, handle_info, Info, State). +try_dispatch({'$gen_cast', Msg}, CbCache, State) -> + try_handle_cast(CbCache, Msg, State); +try_dispatch(Info, CbCache, State) -> + try_handle_info(CbCache, Info, State). + +try_handle_continue(#callback_cache{module = Mod}, Msg, State) -> + try + {ok, Mod:handle_continue(Msg, State)} + catch + throw:R -> + {ok, R}; + Class:R:Stacktrace -> + {'EXIT', Class, R, Stacktrace} + end. -try_dispatch(Mod, Func, Msg, State) -> +try_handle_info(#callback_cache{module = Mod, handle_info = HandleInfo}, Msg, State) -> try - {ok, Mod:Func(Msg, State)} + {ok, HandleInfo(Msg, State)} catch - throw:R -> - {ok, R}; - error:undef = R:Stacktrace when Func == handle_info -> + throw:R -> + {ok, R}; + error:undef = R:Stacktrace -> case erlang:function_exported(Mod, handle_info, 2) of false -> ?LOG_WARNING( - #{label=>{gen_server,no_handle_info}, - module=>Mod, - message=>Msg}, - #{domain=>[otp], - report_cb=>fun gen_server:format_log/2, - error_logger=> - #{tag=>warning_msg, - report_cb=>fun gen_server:format_log/1}}), + #{label=>{gen_server,no_handle_info}, + module=>Mod, + message=>Msg}, + #{domain=>[otp], + report_cb=>fun gen_server:format_log/2, + error_logger=> + #{tag=>warning_msg, + report_cb=>fun gen_server:format_log/1}}), {ok, {noreply, State}}; true -> {'EXIT', error, R, Stacktrace} end; - Class:R:Stacktrace -> - {'EXIT', Class, R, Stacktrace} + Class:R:Stacktrace -> + {'EXIT', Class, R, Stacktrace} + end. + +try_handle_cast(#callback_cache{handle_cast = HandleCast}, Msg, State) -> + try + {ok, HandleCast(Msg, State)} + catch + throw:R -> + {ok, R}; + Class:R:Stacktrace -> + {'EXIT', Class, R, Stacktrace} end. -try_handle_call(Mod, Msg, From, State) -> +try_handle_call(#callback_cache{handle_call = HandleCall}, Msg, From, State) -> try - {ok, Mod:handle_call(Msg, From, State)} + {ok, HandleCall(Msg, From, State)} catch - throw:R -> - {ok, R}; - Class:R:Stacktrace -> - {'EXIT', Class, R, Stacktrace} + throw:R -> + {ok, R}; + Class:R:Stacktrace -> + {'EXIT', Class, R, Stacktrace} end. try_terminate(Mod, Reason, State) -> case erlang:function_exported(Mod, terminate, 2) of - true -> - try - {ok, Mod:terminate(Reason, State)} - catch - throw:R -> - {ok, R}; - Class:R:Stacktrace -> - {'EXIT', Class, R, Stacktrace} - end; - false -> - {ok, ok} + true -> + try + {ok, Mod:terminate(Reason, State)} + catch + throw:R -> + {ok, R}; + Class:R:Stacktrace -> + {'EXIT', Class, R, Stacktrace} + end; + false -> + {ok, ok} end. @@ -1174,69 +1222,72 @@ try_terminate(Mod, Reason, State) -> %%% Message handling functions %%% --------------------------------------------------- -handle_msg({'$gen_call', From, Msg}, Parent, Name, State, Mod, HibernateAfterTimeout) -> - Result = try_handle_call(Mod, Msg, From, State), +handle_msg({'$gen_call', From, Msg}, Parent, Name, State, CbCache, HibernateAfterTimeout) -> + Result = try_handle_call(CbCache, Msg, From, State), case Result of {ok, {reply, Reply, NState}} -> reply(From, Reply), - loop(Parent, Name, NState, Mod, infinity, HibernateAfterTimeout, []); + loop(Parent, Name, NState, CbCache, infinity, HibernateAfterTimeout, []); {ok, {reply, Reply, NState, TimeoutOrHibernate}} when ?is_timeout(TimeoutOrHibernate); TimeoutOrHibernate =:= hibernate -> reply(From, Reply), - loop(Parent, Name, NState, Mod, TimeoutOrHibernate, HibernateAfterTimeout, []); + loop(Parent, Name, NState, CbCache, TimeoutOrHibernate, HibernateAfterTimeout, []); {ok, {reply, Reply, NState, {continue, _}=Continue}} -> reply(From, Reply), - loop(Parent, Name, NState, Mod, Continue, HibernateAfterTimeout, []); + loop(Parent, Name, NState, CbCache, Continue, HibernateAfterTimeout, []); {ok, {stop, Reason, Reply, NState}} -> try + Mod = CbCache#callback_cache.module, terminate(Reason, ?STACKTRACE(), Name, From, Msg, Mod, NState, []) after reply(From, Reply) end; - Other -> handle_common_reply(Other, Parent, Name, From, Msg, Mod, HibernateAfterTimeout, State) + Other -> handle_common_reply(Other, Parent, Name, From, Msg, CbCache, HibernateAfterTimeout, State) end; -handle_msg(Msg, Parent, Name, State, Mod, HibernateAfterTimeout) -> - Reply = try_dispatch(Msg, Mod, State), - handle_common_reply(Reply, Parent, Name, undefined, Msg, Mod, HibernateAfterTimeout, State). +handle_msg(Msg, Parent, Name, State, CbCache, HibernateAfterTimeout) -> + Reply = try_dispatch(Msg, CbCache, State), + handle_common_reply(Reply, Parent, Name, undefined, Msg, CbCache, HibernateAfterTimeout, State). -handle_msg({'$gen_call', From, Msg}, Parent, Name, State, Mod, HibernateAfterTimeout, Debug) -> - Result = try_handle_call(Mod, Msg, From, State), +handle_msg({'$gen_call', From, Msg}, Parent, Name, State, CbCache, HibernateAfterTimeout, Debug) -> + Result = try_handle_call(CbCache, Msg, From, State), case Result of {ok, {reply, Reply, NState}} -> Debug1 = reply(Name, From, Reply, NState, Debug), - loop(Parent, Name, NState, Mod, infinity, HibernateAfterTimeout, Debug1); + loop(Parent, Name, NState, CbCache, infinity, HibernateAfterTimeout, Debug1); {ok, {reply, Reply, NState, TimeoutOrHibernate}} when ?is_timeout(TimeoutOrHibernate); TimeoutOrHibernate =:= hibernate -> Debug1 = reply(Name, From, Reply, NState, Debug), - loop(Parent, Name, NState, Mod, TimeoutOrHibernate, HibernateAfterTimeout, Debug1); + loop(Parent, Name, NState, CbCache, TimeoutOrHibernate, HibernateAfterTimeout, Debug1); {ok, {reply, Reply, NState, {continue, _}=Continue}} -> Debug1 = reply(Name, From, Reply, NState, Debug), - loop(Parent, Name, NState, Mod, Continue, HibernateAfterTimeout, Debug1); + loop(Parent, Name, NState, CbCache, Continue, HibernateAfterTimeout, Debug1); {ok, {stop, Reason, Reply, NState}} -> try + Mod = CbCache#callback_cache.module, terminate(Reason, ?STACKTRACE(), Name, From, Msg, Mod, NState, Debug) after _ = reply(Name, From, Reply, NState, Debug) end; Other -> - handle_common_reply(Other, Parent, Name, From, Msg, Mod, HibernateAfterTimeout, State, Debug) + handle_common_reply(Other, Parent, Name, From, Msg, CbCache, HibernateAfterTimeout, State, Debug) end; -handle_msg(Msg, Parent, Name, State, Mod, HibernateAfterTimeout, Debug) -> - Reply = try_dispatch(Msg, Mod, State), - handle_common_reply(Reply, Parent, Name, undefined, Msg, Mod, HibernateAfterTimeout, State, Debug). +handle_msg(Msg, Parent, Name, State, CbCache, HibernateAfterTimeout, Debug) -> + Reply = try_dispatch(Msg, CbCache, State), + handle_common_reply(Reply, Parent, Name, undefined, Msg, CbCache, HibernateAfterTimeout, State, Debug). -handle_common_reply(Reply, Parent, Name, From, Msg, Mod, HibernateAfterTimeout, State) -> +handle_common_reply(Reply, Parent, Name, From, Msg, CbCache, HibernateAfterTimeout, State) -> + Mod = CbCache#callback_cache.module, case Reply of {ok, {noreply, NState}} -> - loop(Parent, Name, NState, Mod, infinity, HibernateAfterTimeout, []); + loop(Parent, Name, NState, CbCache, infinity, HibernateAfterTimeout, []); {ok, {noreply, NState, TimeoutOrHibernate}} when ?is_timeout(TimeoutOrHibernate); TimeoutOrHibernate =:= hibernate -> - loop(Parent, Name, NState, Mod, TimeoutOrHibernate, HibernateAfterTimeout, []); + loop(Parent, Name, NState, CbCache, TimeoutOrHibernate, HibernateAfterTimeout, []); {ok, {noreply, NState, {continue, _}=Continue}} -> - loop(Parent, Name, NState, Mod, Continue, HibernateAfterTimeout, []); + loop(Parent, Name, NState, CbCache, Continue, HibernateAfterTimeout, []); {ok, {stop, Reason, NState}} -> terminate(Reason, ?STACKTRACE(), Name, From, Msg, Mod, NState, []); {'EXIT', Class, Reason, Stacktrace} -> @@ -1245,20 +1296,21 @@ handle_common_reply(Reply, Parent, Name, From, Msg, Mod, HibernateAfterTimeout, terminate({bad_return_value, BadReply}, ?STACKTRACE(), Name, From, Msg, Mod, State, []) end. -handle_common_reply(Reply, Parent, Name, From, Msg, Mod, HibernateAfterTimeout, State, Debug) -> +handle_common_reply(Reply, Parent, Name, From, Msg, CbCache, HibernateAfterTimeout, State, Debug) -> + Mod = CbCache#callback_cache.module, case Reply of {ok, {noreply, NState}} -> Debug1 = sys:handle_debug(Debug, fun print_event/3, Name, {noreply, NState}), - loop(Parent, Name, NState, Mod, infinity, HibernateAfterTimeout, Debug1); + loop(Parent, Name, NState, CbCache, infinity, HibernateAfterTimeout, Debug1); {ok, {noreply, NState, TimeoutOrHibernate}} when ?is_timeout(TimeoutOrHibernate); TimeoutOrHibernate =:= hibernate -> Debug1 = sys:handle_debug(Debug, fun print_event/3, Name, {noreply, NState}), - loop(Parent, Name, NState, Mod, TimeoutOrHibernate, HibernateAfterTimeout, Debug1); + loop(Parent, Name, NState, CbCache, TimeoutOrHibernate, HibernateAfterTimeout, Debug1); {ok, {noreply, NState, {continue, _}=Continue}} -> Debug1 = sys:handle_debug(Debug, fun print_event/3, Name, {noreply, NState}), - loop(Parent, Name, NState, Mod, Continue, HibernateAfterTimeout, Debug1); + loop(Parent, Name, NState, CbCache, Continue, HibernateAfterTimeout, Debug1); {ok, {stop, Reason, NState}} -> terminate(Reason, ?STACKTRACE(), Name, From, Msg, Mod, NState, Debug); {'EXIT', Class, Reason, Stacktrace} -> @@ -1270,32 +1322,34 @@ handle_common_reply(Reply, Parent, Name, From, Msg, Mod, HibernateAfterTimeout, reply(Name, From, Reply, State, Debug) -> reply(From, Reply), sys:handle_debug(Debug, fun print_event/3, Name, - {out, Reply, From, State} ). + {out, Reply, From, State} ). %%----------------------------------------------------------------- %% Callback functions for system messages handling. %%----------------------------------------------------------------- -system_continue(Parent, Debug, [Name, State, Mod, Time, HibernateAfterTimeout]) -> - loop(Parent, Name, State, Mod, Time, HibernateAfterTimeout, Debug). +system_continue(Parent, Debug, [Name, State, CbCache, Time, HibernateAfterTimeout]) -> + loop(Parent, Name, State, CbCache, Time, HibernateAfterTimeout, Debug). -spec system_terminate(_, _, _, [_]) -> no_return(). -system_terminate(Reason, _Parent, Debug, [Name, State, Mod, _Time, _HibernateAfterTimeout]) -> +system_terminate(Reason, _Parent, Debug, [Name, State, CbCache, _Time, _HibernateAfterTimeout]) -> + Mod = CbCache#callback_cache.module, terminate(Reason, ?STACKTRACE(), Name, undefined, [], Mod, State, Debug). -system_code_change([Name, State, Mod, Time, HibernateAfterTimeout], _Module, OldVsn, Extra) -> +system_code_change([Name, State, CbCache, Time, HibernateAfterTimeout], _Module, OldVsn, Extra) -> + Mod = CbCache#callback_cache.module, case catch Mod:code_change(OldVsn, State, Extra) of - {ok, NewState} -> {ok, [Name, NewState, Mod, Time, HibernateAfterTimeout]}; - Else -> Else + {ok, NewState} -> {ok, [Name, NewState, CbCache, Time, HibernateAfterTimeout]}; + Else -> Else end. system_get_state([_Name, State, _Mod, _Time, _HibernateAfterTimeout]) -> {ok, State}. -system_replace_state(StateFun, [Name, State, Mod, Time, HibernateAfterTimeout]) -> +system_replace_state(StateFun, [Name, State, CbCache, Time, HibernateAfterTimeout]) -> NState = StateFun(State), - {ok, NState, [Name, NState, Mod, Time, HibernateAfterTimeout]}. + {ok, NState, [Name, NState, CbCache, Time, HibernateAfterTimeout]}. %%----------------------------------------------------------------- %% Format debug messages. Print them as the call-back module sees @@ -1659,7 +1713,8 @@ mod(_) -> "t". %% Status information %%----------------------------------------------------------------- format_status(Opt, StatusData) -> - [PDict, SysState, Parent, Debug, [Name, State, Mod, _Time, _HibernateAfterTimeout]] = StatusData, + [PDict, SysState, Parent, Debug, [Name, State, CbCache, _Time, _HibernateAfterTimeout]] = StatusData, + Mod = CbCache#callback_cache.module, Header = gen:format_status_header("Status for generic server", Name), Status = case gen:format_status(Mod, Opt, #{ state => State, log => sys:get_log(Debug) }, -- 2.35.3
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