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-rw-r--r--lib/kernel/src/code_server.erl14
-rw-r--r--lib/kernel/src/error_logger.erl545
-rw-r--r--lib/kernel/src/kernel.erl26
3 files changed, 300 insertions, 285 deletions
diff --git a/lib/kernel/src/code_server.erl b/lib/kernel/src/code_server.erl
index f5a890cb95..bbfa2a995d 100644
--- a/lib/kernel/src/code_server.erl
+++ b/lib/kernel/src/code_server.erl
@@ -1434,14 +1434,20 @@ all_loaded(Db) ->
-spec error_msg(io:format(), [term()]) -> 'ok'.
error_msg(Format, Args) ->
- Msg = {notify,{error, group_leader(), {self(), Format, Args}}},
- error_logger ! Msg,
+ logger ! {log,error,Format,Args,
+ #{pid=>self(),
+ gl=>group_leader(),
+ time=>erlang:monotonic_time(microsecond),
+ error_logger=>#{tag=>error}}},
ok.
-spec info_msg(io:format(), [term()]) -> 'ok'.
info_msg(Format, Args) ->
- Msg = {notify,{info_msg, group_leader(), {self(), Format, Args}}},
- error_logger ! Msg,
+ logger ! {log,info,Format,Args,
+ #{pid=>self(),
+ gl=>group_leader(),
+ time=>erlang:monotonic_time(microsecond),
+ error_logger=>#{tag=>info_msg}}},
ok.
objfile_extension() ->
diff --git a/lib/kernel/src/error_logger.erl b/lib/kernel/src/error_logger.erl
index 585507c545..0706220a94 100644
--- a/lib/kernel/src/error_logger.erl
+++ b/lib/kernel/src/error_logger.erl
@@ -19,22 +19,23 @@
%%
-module(error_logger).
--export([start/0,start_link/0,format/2,error_msg/1,error_msg/2,error_report/1,
+-include("logger_internal.hrl").
+
+-export([start/0,start_link/0,stop/0,
+ format/2,error_msg/1,error_msg/2,error_report/1,
error_report/2,info_report/1,info_report/2,warning_report/1,
warning_report/2,error_info/1,
info_msg/1,info_msg/2,warning_msg/1,warning_msg/2,
- logfile/1,tty/1,swap_handler/1,
+ logfile/1,tty/1,
add_report_handler/1,add_report_handler/2,
- delete_report_handler/1]).
+ delete_report_handler/1,
+ which_report_handlers/0]).
--export([init/1,
- handle_event/2, handle_call/2, handle_info/2,
- terminate/2]).
+%% logger callbacks
+-export([adding_handler/2, removing_handler/1, log/2]).
-export([get_format_depth/0, limit_term/1]).
--define(buffer_size, 10).
-
%%-----------------------------------------------------------------
%% Types used in this file
%%-----------------------------------------------------------------
@@ -43,8 +44,6 @@
| 'info' | 'info_msg' | 'info_report'
| 'warning_msg' | 'warning_report'.
--type state() :: {non_neg_integer(), non_neg_integer(), [term()]}.
-
%%% BIF
-export([warning_map/0]).
@@ -59,26 +58,137 @@ warning_map() ->
%%-----------------------------------------------------------------
--spec start() -> {'ok', pid()} | {'error', any()}.
+%%%-----------------------------------------------------------------
+%%% Start the event manager process under logger_sup, which is part of
+%%% the kernel application's supervision tree.
+-spec start() -> 'ok' | {'error', any()}.
start() ->
- case gen_event:start({local, error_logger}) of
- {ok, Pid} ->
- simple_logger(?buffer_size),
- {ok, Pid};
- Error -> Error
+ case whereis(?MODULE) of
+ undefined ->
+ ErrorLogger =
+ #{id => ?MODULE,
+ start => {?MODULE, start_link, []},
+ restart => transient,
+ shutdown => 2000,
+ type => worker,
+ modules => dynamic},
+ case supervisor:start_child(logger_sup, ErrorLogger) of
+ {ok,_} ->
+ ok;
+ Error ->
+ Error
+ end;
+ _ ->
+ ok
end.
+%%%-----------------------------------------------------------------
+%%% Start callback specified in child specification to supervisor, see start/0
-spec start_link() -> {'ok', pid()} | {'error', any()}.
start_link() ->
- case gen_event:start_link({local, error_logger}) of
- {ok, Pid} ->
- simple_logger(?buffer_size),
- {ok, Pid};
- Error -> Error
+ gen_event:start_link({local, ?MODULE},
+ [{spawn_opt,[{message_queue_data, off_heap}]}]).
+
+%%%-----------------------------------------------------------------
+%%% Stop the event manager
+-spec stop() -> ok.
+stop() ->
+ _ = supervisor:terminate_child(logger_sup,?MODULE),
+ _ = supervisor:delete_child(logger_sup,?MODULE),
+ ok.
+
+%%%-----------------------------------------------------------------
+%%% Callbacks for logger
+-spec adding_handler(logger:handler_id(),logger:config()) ->
+ {ok,logger:config()} | {error,term()}.
+adding_handler(?MODULE,Config) ->
+ case start() of
+ ok ->
+ {ok,Config};
+ Error ->
+ Error
end.
+-spec removing_handler(logger:handler_id()) -> ok.
+removing_handler(?MODULE) ->
+ stop(),
+ ok.
+
+-spec log(logger:log(),logger:config()) -> ok.
+log(#{level:=Level,msg:=Msg,meta:=Meta},_Config) ->
+ do_log(Level,Msg,Meta).
+
+do_log(Level,{report,Msg},#{?MODULE:=#{tag:=Tag,type:=Type}}=Meta) ->
+ %% From error_logger:*_report/1,2, or logger call which added
+ %% error_logger data to obtain backwards compatibility with
+ %% error_logger:*_report/1,2
+ Report =
+ case Msg of
+ #{label:=_,report:=R} -> R;
+ _ -> Msg
+ end,
+ notify(Level,Tag,Type,Report,Meta);
+do_log(Level,{report,Msg},#{?MODULE:=#{tag:=Tag}}=Meta) ->
+ {Format,Args} =
+ case Msg of
+ #{label:=_,format:=F,args:=A} ->
+ %% From error_logger:*_msg/1,2.
+ %% In order to be backwards compatible with handling
+ %% of faulty parameters to error_logger:*_msg/1,2,
+ %% don't use report_cb here.
+ {F,A};
+ _ ->
+ %% From logger call which added error_logger data to
+ %% obtain backwards compatibility with error_logger:*_msg/1,2
+ RCBFun=maps:get(report_cb,Meta,fun logger:format_report/1),
+ try RCBFun(Msg) of
+ {F,A} when is_list(F), is_list(A) ->
+ {F,A};
+ Other ->
+ {"REPORT_CB ERROR: ~tp; Returned: ~tp",[Msg,Other]}
+ catch C:R ->
+ {"REPORT_CB CRASH: ~tp; Reason: ~tp",[Msg,{C,R}]}
+ end
+ end,
+ notify(Level,Tag,Format,Args,Meta);
+do_log(Level,{Format,Args},#{?MODULE:=#{tag:=Tag}}=Meta)
+ when is_list(Format), is_list(Args) ->
+ %% From logger call which added error_logger data to obtain
+ %% backwards compatibility with error_logger:*_msg/1,2
+ notify(Level,Tag,Format,Args,Meta);
+do_log(_Level,_Msg,_Meta) ->
+ %% Ignore the rest - i.e. to get backwards compatibility with
+ %% error_logger, you must use the error_logger API for logging.
+ %% Some modules within OTP go around this by adding an
+ %% error_logger field to its metadata. This is done only to allow
+ %% complete backwards compatibility for log events originating
+ %% from within OTP, while still using the new logger interface.
+ ok.
+
+-spec notify(logger:level(), msg_tag(), any(), any(), map()) -> 'ok'.
+notify(Level,Tag0,FormatOrType0,ArgsOrReport,#{pid:=Pid0,gl:=GL,?MODULE:=My}) ->
+ Tag = fix_warning_tag(Level,Tag0),
+ Pid = case maps:get(emulator,My,false) of
+ true -> emulator;
+ _ -> Pid0
+ end,
+ FormatOrType = fix_warning_type(Level,FormatOrType0),
+ gen_event:notify(?MODULE,{Tag,GL,{Pid,FormatOrType,ArgsOrReport}}).
+
+%% This is to fix the case when the client has explicitly added the
+%% error logger tag and type in metadata, and not checked the warning map.
+fix_warning_tag(error,warning_msg) -> error;
+fix_warning_tag(error,warning_report) -> error_report;
+fix_warning_tag(info,warning_msg) -> info_msg;
+fix_warning_tag(info,warning_report) -> info_report;
+fix_warning_tag(_,Tag) -> Tag.
+
+fix_warning_type(error,std_warning) -> std_error;
+fix_warning_type(info,std_warning) -> std_info;
+fix_warning_type(_,Type) -> Type.
+
%%-----------------------------------------------------------------
%% These two simple old functions generate events tagged 'error'
%% Used for simple messages; error or information.
@@ -95,14 +205,18 @@ error_msg(Format) ->
Data :: list().
error_msg(Format, Args) ->
- notify({error, group_leader(), {self(), Format, Args}}).
+ logger:log(error,
+ #{label=>{?MODULE,error_msg},
+ format=>Format,
+ args=>Args},
+ meta(error)).
-spec format(Format, Data) -> 'ok' when
Format :: string(),
Data :: list().
format(Format, Args) ->
- notify({error, group_leader(), {self(), Format, Args}}).
+ error_msg(Format, Args).
%%-----------------------------------------------------------------
%% This functions should be used for error reports. Events
@@ -124,7 +238,10 @@ error_report(Report) ->
Report :: report().
error_report(Type, Report) ->
- notify({error_report, group_leader(), {self(), Type, Report}}).
+ logger:log(error,
+ #{label=>{?MODULE,error_report},
+ report=>Report},
+ meta(error_report,Type)).
%%-----------------------------------------------------------------
%% This function should be used for warning reports.
@@ -146,7 +263,8 @@ warning_report(Report) ->
Report :: report().
warning_report(Type, Report) ->
- {Tag, NType} = case error_logger:warning_map() of
+ Level = error_logger:warning_map(),
+ {Tag, NType} = case Level of
info ->
if
Type =:= std_warning ->
@@ -164,7 +282,10 @@ warning_report(Type, Report) ->
{error_report, Type}
end
end,
- notify({Tag, group_leader(), {self(), NType, Report}}).
+ logger:log(Level,
+ #{label=>{?MODULE,warning_report},
+ report=>Report},
+ meta(Tag,NType)).
%%-----------------------------------------------------------------
%% This function provides similar functions as error_msg for
@@ -183,7 +304,8 @@ warning_msg(Format) ->
Data :: list().
warning_msg(Format, Args) ->
- Tag = case error_logger:warning_map() of
+ Level = error_logger:warning_map(),
+ Tag = case Level of
warning ->
warning_msg;
info ->
@@ -191,7 +313,11 @@ warning_msg(Format, Args) ->
error ->
error
end,
- notify({Tag, group_leader(), {self(), Format, Args}}).
+ logger:log(Level,
+ #{label=>{?MODULE,warning_msg},
+ format=>Format,
+ args=>Args},
+ meta(Tag)).
%%-----------------------------------------------------------------
%% This function should be used for information reports. Events
@@ -210,7 +336,10 @@ info_report(Report) ->
Report :: report().
info_report(Type, Report) ->
- notify({info_report, group_leader(), {self(), Type, Report}}).
+ logger:log(info,
+ #{label=>{?MODULE,info_report},
+ report=>Report},
+ meta(info_report,Type)).
%%-----------------------------------------------------------------
%% This function provides similar functions as error_msg for
@@ -228,7 +357,11 @@ info_msg(Format) ->
Data :: list().
info_msg(Format, Args) ->
- notify({info_msg, group_leader(), {self(), Format, Args}}).
+ logger:log(info,
+ #{label=>{?MODULE,info_msg},
+ format=>Format,
+ args=>Args},
+ meta(info_msg)).
%%-----------------------------------------------------------------
%% Used by the init process. Events are tagged 'info'.
@@ -236,38 +369,75 @@ info_msg(Format, Args) ->
-spec error_info(Error :: any()) -> 'ok'.
+%% unused?
error_info(Error) ->
- notify({info, group_leader(), {self(), Error, []}}).
-
--spec notify({msg_tag(), pid(), {pid(), any(), any()}}) -> 'ok'.
-
-notify(Msg) ->
- gen_event:notify(error_logger, Msg).
-
--type swap_handler_type() :: 'false' | 'silent' | 'tty' | {'logfile', string()}.
--spec swap_handler(Type :: swap_handler_type()) -> any().
-
-swap_handler(tty) ->
- R = gen_event:swap_handler(error_logger, {error_logger, swap},
- {error_logger_tty_h, []}),
- ok = simple_logger(),
- R;
-swap_handler({logfile, File}) ->
- R = gen_event:swap_handler(error_logger, {error_logger, swap},
- {error_logger_file_h, File}),
- ok = simple_logger(),
- R;
-swap_handler(silent) ->
- _ = gen_event:delete_handler(error_logger, error_logger, delete),
- ok = simple_logger();
-swap_handler(false) ->
- ok. % keep primitive event handler as-is
+ {Format,Args} =
+ case string_p(Error) of
+ true -> {Error,[]};
+ false -> {"~p",[Error]}
+ end,
+ MyMeta = #{tag=>info,type=>Error},
+ logger:log(info, Format, Args, #{?MODULE=>MyMeta,domain=>[Error]}).
+
+%%-----------------------------------------------------------------
+%% Create metadata
+meta(Tag) ->
+ meta(Tag,undefined).
+meta(Tag,Type) ->
+ meta(Tag,Type,#{report_cb=>fun report_to_format/1}).
+meta(Tag,undefined,Meta0) ->
+ Meta0#{?MODULE=>#{tag=>Tag}};
+meta(Tag,Type,Meta0) ->
+ maybe_add_domain(Tag,Type,Meta0#{?MODULE=>#{tag=>Tag,type=>Type}}).
+
+%% This is to prevent events of non standard type from being printed
+%% with the standard logger. Similar to how error_logger_tty_h
+%% discards events of non standard type.
+maybe_add_domain(error_report,std_error,Meta) -> Meta;
+maybe_add_domain(info_report,std_info,Meta) -> Meta;
+maybe_add_domain(warning_report,std_warning,Meta) -> Meta;
+maybe_add_domain(_,Type,Meta) -> Meta#{domain=>[Type]}.
+
+%% -----------------------------------------------------------------
+%% Report formatting - i.e. Term => {Format,Args}
+%% This was earlier done in the event handler (error_logger_tty_h, etc)
+%% -----------------------------------------------------------------
+report_to_format(#{label:={?MODULE,_},
+ report:=Report}) when is_map(Report) ->
+ %% logger:format_otp_report does maps:to_list, and for backwards
+ %% compatibility reasons we don't want that.
+ {"~tp\n",[Report]};
+report_to_format(#{label:={?MODULE,_},
+ format:=Format,
+ args:=Args}) ->
+ %% This is not efficient, but needed for backwards compatibility
+ %% in giving faulty arguments to the *_msg functions.
+ try io_lib:scan_format(Format,Args) of
+ _ -> {Format,Args}
+ catch _:_ ->
+ {"ERROR: ~tp - ~tp",[Format,Args]}
+ end;
+report_to_format(Term) ->
+ logger:format_otp_report(Term).
+string_p(List) when is_list(List) ->
+ string_p1(lists:flatten(List));
+string_p(_) ->
+ false.
+
+string_p1([]) ->
+ false;
+string_p1(FlatList) ->
+ io_lib:printable_list(FlatList).
+
+%% -----------------------------------------------------------------
+%% Stuff directly related to the event manager
+%% -----------------------------------------------------------------
-spec add_report_handler(Handler) -> any() when
Handler :: module().
add_report_handler(Module) when is_atom(Module) ->
- gen_event:add_handler(error_logger, Module, []).
+ add_report_handler(Module, []).
-spec add_report_handler(Handler, Args) -> Result when
Handler :: module(),
@@ -275,24 +445,37 @@ add_report_handler(Module) when is_atom(Module) ->
Result :: gen_event:add_handler_ret().
add_report_handler(Module, Args) when is_atom(Module) ->
- gen_event:add_handler(error_logger, Module, Args).
+ _ = logger:add_handler(?MODULE,?MODULE,#{level=>info,filter_default=>log}),
+ gen_event:add_handler(?MODULE, Module, Args).
-spec delete_report_handler(Handler) -> Result when
Handler :: module(),
Result :: gen_event:del_handler_ret().
delete_report_handler(Module) when is_atom(Module) ->
- gen_event:delete_handler(error_logger, Module, []).
-
-%% Start the lowest level error_logger handler with Buffer.
-
-simple_logger(Buffer_size) when is_integer(Buffer_size) ->
- gen_event:add_handler(error_logger, error_logger, Buffer_size).
-
-%% Start the lowest level error_logger handler without Buffer.
+ case whereis(?MODULE) of
+ Pid when is_pid(Pid) ->
+ Return = gen_event:delete_handler(?MODULE, Module, []),
+ case gen_event:which_handlers(?MODULE) of
+ [] ->
+ %% Don't want a lot of logs here if it's not needed
+ _ = logger:remove_handler(?MODULE),
+ ok;
+ _ ->
+ ok
+ end,
+ Return;
+ _ ->
+ ok
+ end.
-simple_logger() ->
- gen_event:add_handler(error_logger, error_logger, []).
+which_report_handlers() ->
+ case whereis(?MODULE) of
+ Pid when is_pid(Pid) ->
+ gen_event:which_handlers(?MODULE);
+ undefined ->
+ []
+ end.
%% Log all errors to File for all eternity
@@ -308,26 +491,35 @@ simple_logger() ->
FilenameReason :: no_log_file.
logfile({open, File}) ->
- case lists:member(error_logger_file_h,
- gen_event:which_handlers(error_logger)) of
+ case lists:member(error_logger_file_h,which_report_handlers()) of
true ->
{error, allready_have_logfile};
_ ->
- gen_event:add_handler(error_logger, error_logger_file_h, File)
+ add_report_handler(error_logger_file_h, File)
end;
logfile(close) ->
- case gen_event:delete_handler(error_logger, error_logger_file_h, normal) of
- {error,Reason} ->
- {error,Reason};
- _ ->
- ok
+ case whereis(?MODULE) of
+ Pid when is_pid(Pid) ->
+ case gen_event:delete_handler(?MODULE, error_logger_file_h, normal) of
+ {error,Reason} ->
+ {error,Reason};
+ _ ->
+ ok
+ end;
+ _ ->
+ {error,module_not_found}
end;
logfile(filename) ->
- case gen_event:call(error_logger, error_logger_file_h, filename) of
- {error,_} ->
- {error, no_log_file};
- Val ->
- Val
+ case whereis(?MODULE) of
+ Pid when is_pid(Pid) ->
+ case gen_event:call(?MODULE, error_logger_file_h, filename) of
+ {error,_} ->
+ {error, no_log_file};
+ Val ->
+ Val
+ end;
+ _ ->
+ {error, no_log_file}
end.
%% Possibly turn off all tty printouts, maybe we only want the errors
@@ -337,193 +529,17 @@ logfile(filename) ->
Flag :: boolean().
tty(true) ->
- Hs = gen_event:which_handlers(error_logger),
- case lists:member(error_logger_tty_h, Hs) of
+ case lists:member(error_logger_tty_h, which_report_handlers()) of
false ->
- gen_event:add_handler(error_logger, error_logger_tty_h, []);
- true ->
+ add_report_handler(error_logger_tty_h, []);
+ true ->
ignore
end,
ok;
tty(false) ->
- gen_event:delete_handler(error_logger, error_logger_tty_h, []),
- ok.
-
+ delete_report_handler(error_logger_tty_h).
-%%% ---------------------------------------------------
-%%% This is the default error_logger handler.
-%%% ---------------------------------------------------
-
--spec init(term()) -> {'ok', state() | []}.
-
-init(Max) when is_integer(Max) ->
- {ok, {Max, 0, []}};
-%% This one is called if someone took over from us, and now wants to
-%% go back.
-init({go_back, _PostState}) ->
- {ok, {?buffer_size, 0, []}};
-init(_) ->
- %% The error logger process may receive a huge amount of
- %% messages. Make sure that they are stored off heap to
- %% avoid exessive GCs.
- process_flag(message_queue_data, off_heap),
- {ok, []}.
-
--spec handle_event(term(), state()) -> {'ok', state()}.
-
-handle_event({Type, GL, Msg}, State) when node(GL) =/= node() ->
- gen_event:notify({error_logger, node(GL)},{Type, GL, Msg}),
- %% handle_event2({Type, GL, Msg}, State); %% Shall we do something
- {ok, State}; %% at this node too ???
-handle_event({info_report, _, {_, Type, _}}, State) when Type =/= std_info ->
- {ok, State}; %% Ignore other info reports here
-handle_event(Event, State) ->
- handle_event2(Event, State).
-
--spec handle_info(term(), state()) -> {'ok', state()}.
-
-handle_info({emulator, GL, Chars}, State) when node(GL) =/= node() ->
- {error_logger, node(GL)} ! {emulator, GL, add_node(Chars,self())},
- {ok, State};
-handle_info({emulator, GL, Chars}, State) ->
- handle_event2({emulator, GL, Chars}, State);
-handle_info(_, State) ->
- {ok, State}.
-
--spec handle_call(term(), state()) -> {'ok', {'error', 'bad_query'}, state()}.
-
-handle_call(_Query, State) -> {ok, {error, bad_query}, State}.
-
--spec terminate(term(), state()) -> {'error_logger', [term()]}.
-
-terminate(swap, {_, 0, Buff}) ->
- {error_logger, Buff};
-terminate(swap, {_, Lost, Buff}) ->
- Myevent = {info, group_leader(), {self(), {lost_messages, Lost}, []}},
- {error_logger, [tag_event(Myevent)|Buff]};
-terminate(_, _) ->
- {error_logger, []}.
-
-handle_event2(Event, {1, Lost, Buff}) ->
- display(tag_event(Event)),
- {ok, {1, Lost+1, Buff}};
-handle_event2(Event, {N, Lost, Buff}) ->
- Tagged = tag_event(Event),
- display(Tagged),
- {ok, {N-1, Lost, [Tagged|Buff]}};
-handle_event2(_, State) ->
- {ok, State}.
-
-tag_event(Event) ->
- {erlang:localtime(), Event}.
-
-display({Tag,{error,_,{_,Format,Args}}}) ->
- display2(Tag,Format,Args);
-display({Tag,{error_report,_,{_,Type,Report}}}) ->
- display2(Tag,Type,Report);
-display({Tag,{info_report,_,{_,Type,Report}}}) ->
- display2(Tag,Type,Report);
-display({Tag,{info,_,{_,Error,_}}}) ->
- display2(Tag,Error,[]);
-display({Tag,{info_msg,_,{_,Format,Args}}}) ->
- display2(Tag,Format,Args);
-display({Tag,{warning_report,_,{_,Type,Report}}}) ->
- display2(Tag,Type,Report);
-display({Tag,{warning_msg,_,{_,Format,Args}}}) ->
- display2(Tag,Format,Args);
-display({Tag,{emulator,_,Chars}}) ->
- display2(Tag,Chars,[]).
-
-add_node(X, Pid) when is_atom(X) ->
- add_node(atom_to_list(X), Pid);
-add_node(X, Pid) ->
- lists:concat([X,"** at node ",node(Pid)," **~n"]).
-
-%% Can't do io_lib:format
-
-display2({{_Y,_Mo,_D},{_H,_Mi,_S}} = Date, F, A) ->
- display_date(Date),
- display3(string_p(F), F, A).
-
-display_date({{Y,Mo,D},{H,Mi,S}}) ->
- erlang:display_string(
- integer_to_list(Y) ++ "-" ++
- two_digits(Mo) ++ "-" ++
- two_digits(D) ++ " " ++
- two_digits(H) ++ ":" ++
- two_digits(Mi) ++ ":" ++
- two_digits(S) ++ " ").
-
-two_digits(N) when 0 =< N, N =< 9 ->
- [$0, $0 + N];
-two_digits(N) ->
- integer_to_list(N).
-
-display3(true, F, A) ->
- %% Format string with arguments
- erlang:display_string(F ++ "\n"),
- [begin
- erlang:display_string("\t"),
- erlang:display(Arg)
- end || Arg <- A],
- ok;
-display3(false, Atom, A) when is_atom(Atom) ->
- %% The widest atom seems to be 'supervisor_report' at 17.
- ColumnWidth = 20,
- AtomString = atom_to_list(Atom),
- AtomLength = length(AtomString),
- Padding = lists:duplicate(ColumnWidth - AtomLength, $\s),
- erlang:display_string(AtomString ++ Padding),
- display4(A);
-display3(_, F, A) ->
- erlang:display({F, A}).
-
-display4([A, []]) ->
- %% Not sure why crash reports look like this.
- display4(A);
-display4(A = [_|_]) ->
- case lists:all(fun({Key,_Value}) -> is_atom(Key); (_) -> false end, A) of
- true ->
- erlang:display_string("\n"),
- lists:foreach(
- fun({Key, Value}) ->
- erlang:display_string(
- " " ++
- atom_to_list(Key) ++
- ": "),
- erlang:display(Value)
- end, A);
- false ->
- erlang:display(A)
- end;
-display4(A) ->
- erlang:display(A).
-
-string_p([]) ->
- false;
-string_p(Term) ->
- string_p1(Term).
-
-string_p1([H|T]) when is_integer(H), H >= $\040, H =< $\176 ->
- string_p1(T);
-string_p1([H|T]) when is_integer(H), H >= 16#A0, H < 16#D800;
- is_integer(H), H > 16#DFFF, H < 16#FFFE;
- is_integer(H), H > 16#FFFF, H =< 16#10FFFF ->
- string_p1(T);
-string_p1([$\n|T]) -> string_p1(T);
-string_p1([$\r|T]) -> string_p1(T);
-string_p1([$\t|T]) -> string_p1(T);
-string_p1([$\v|T]) -> string_p1(T);
-string_p1([$\b|T]) -> string_p1(T);
-string_p1([$\f|T]) -> string_p1(T);
-string_p1([$\e|T]) -> string_p1(T);
-string_p1([H|T]) when is_list(H) ->
- case string_p1(H) of
- true -> string_p1(T);
- _ -> false
- end;
-string_p1([]) -> true;
-string_p1(_) -> false.
+%%%-----------------------------------------------------------------
-spec limit_term(term()) -> term().
@@ -536,9 +552,4 @@ limit_term(Term) ->
-spec get_format_depth() -> 'unlimited' | pos_integer().
get_format_depth() ->
- case application:get_env(kernel, error_logger_format_depth) of
- {ok, Depth} when is_integer(Depth) ->
- max(10, Depth);
- undefined ->
- unlimited
- end.
+ logger:get_format_depth().
diff --git a/lib/kernel/src/kernel.erl b/lib/kernel/src/kernel.erl
index 0382764b39..20aa47f602 100644
--- a/lib/kernel/src/kernel.erl
+++ b/lib/kernel/src/kernel.erl
@@ -40,8 +40,7 @@ start(_, []) ->
ok = gen_event:add_handler(erl_signal_server, erl_signal_handler, [])
end,
%% add error handler
- Type = get_error_logger_type(),
- case error_logger:swap_handler(Type) of
+ case logger:setup_standard_handler() of
ok -> {ok, Pid, []};
Error ->
%% Not necessary since the node will crash anyway:
@@ -62,16 +61,6 @@ config_change(Changed, New, Removed) ->
do_global_groups_change(Changed, New, Removed),
ok.
-get_error_logger_type() ->
- case application:get_env(kernel, error_logger) of
- {ok, tty} -> tty;
- {ok, {file, File}} when is_list(File) -> {logfile, File};
- {ok, false} -> false;
- {ok, silent} -> silent;
- undefined -> tty; % default value
- {ok, Bad} -> exit({bad_config, {kernel, {error_logger, Bad}}})
- end.
-
%%%-----------------------------------------------------------------
%%% The process structure in kernel is as shown in the figure.
%%%
@@ -153,9 +142,18 @@ init([]) ->
type => supervisor,
modules => [?MODULE]},
+
+ LoggerSup = #{id => logger_sup,
+ start => {logger_sup, start_link, []},
+ restart => permanent,
+ shutdown => infinity,
+ type => supervisor,
+ modules => [logger_sup]},
+
case init:get_argument(mode) of
{ok, [["minimal"]]} ->
- {ok, {SupFlags, [Code, File, StdError, User, Config, RefC, SafeSup]}};
+ {ok, {SupFlags,
+ [Code, File, StdError, User, Config, RefC, SafeSup, LoggerSup]}};
_ ->
Rpc = #{id => rex,
start => {rpc, start_link, []},
@@ -206,7 +204,7 @@ init([]) ->
{ok, {SupFlags,
[Code, Rpc, Global, InetDb | DistAC] ++
[NetSup, GlGroup, File, SigSrv,
- StdError, User, Config, RefC, SafeSup] ++ Timer}}
+ StdError, User, Config, RefC, SafeSup, LoggerSup] ++ Timer}}
end;
init(safe) ->
SupFlags = #{strategy => one_for_one,
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-30 04:53:42 +0000