Merge branch 'siri/kernel/logger/OTP-13295'

* siri/kernel/logger/OTP-13295:
  Add documentation of the built-in logger handlers
  Catch badarg in logger:get_format_depth/0
  Add chars_limit option to logger_formatter
  Don't kill logger process until all other processes are dead
  Set call timeout for logger_server to infinity
  Update primary bootstrap
  Test cuddle for logger
  Update cth_log_redirect to a logger handler
  Start using logger internally in kernel and stdlib
  Remove error_logger process and add logger process
  Add logger

2 files changed, 74 insertions, 0 deletions

diff --git a/lib/kernel/test/logger_bench_SUITE_data/Emakefile b/lib/kernel/test/logger_bench_SUITE_data/Emakefile
new file mode 100644
index 0000000000..85c82bdaab
--- /dev/null
+++ b/lib/kernel/test/logger_bench_SUITE_data/Emakefile
@@ -0,0 +1 @@
+{['lager_helper'],[{outdir,"."},debug_info,{i,"/home/uabshan/Work/git/otp/lib/kernel/src"},{i,"/home/uabshan/Work/git/otp/lib/kernel/include"}]}.
diff --git a/lib/kernel/test/logger_bench_SUITE_data/lager_helper.erl b/lib/kernel/test/logger_bench_SUITE_data/lager_helper.erl
new file mode 100644
index 0000000000..296ced4276
--- /dev/null
+++ b/lib/kernel/test/logger_bench_SUITE_data/lager_helper.erl
@@ -0,0 +1,73 @@
+-module(lager_helper).
+
+-compile(export_all).
+-compile({parse_transform,lager_transform}).
+
+-include_lib("kernel/src/logger_internal.hrl").
+
+start() ->
+    application:load(lager),
+    application:set_env(lager, error_logger_redirect, false),
+    application:set_env(lager, async_threshold, 100010),
+    application:set_env(lager, async_threshold_window, 100),
+    application:set_env(lager,handlers,[{?MODULE,[{level,error}]}]),
+    lager:start().
+
+stop() ->
+    application:stop(lager).
+
+do_func(Level,Msg) ->
+    lager:log(Level,[{pid,self()}],Msg,[]).
+
+do_parsetrans(error,Msg) ->
+    lager:error(Msg,[]);
+do_parsetrans(info,Msg) ->
+    lager:info(Msg,[]).
+
+%%%-----------------------------------------------------------------
+%%% Dummy handler for lager 
+-record(state, {level :: {'mask', integer()},
+                formatter :: atom(),
+                format_config :: any()}).
+init(Opts) ->
+    Level = proplists:get_value(level,Opts,info),
+    Formatter = proplists:get_value(formatter,Opts,logger_bench_SUITE),
+    FormatConfig = proplists:get_value(format_config,Opts,?DEFAULT_FORMAT_CONFIG),
+    {ok,#state{level=lager_util:config_to_mask(Level),
+               formatter=Formatter,
+               format_config=FormatConfig}}.
+
+handle_call(get_loglevel, #state{level=Level} = State) ->
+    {ok, Level, State};
+handle_call({set_loglevel, Level}, State) ->
+   try lager_util:config_to_mask(Level) of
+        Levels ->
+            {ok, ok, State#state{level=Levels}}
+    catch
+        _:_ ->
+            {ok, {error, bad_log_level}, State}
+    end;
+handle_call(_Request, State) ->
+    {ok, ok, State}.
+
+handle_event({log, Message},
+    #state{level=L,formatter=Formatter,format_config=FormatConfig} = State) ->
+    case lager_util:is_loggable(Message, L, ?MODULE) of
+        true ->
+            Metadata =
+                case maps:from_list(lager_msg:metadata(Message)) of
+                    Meta = #{pid:=Pid} when is_pid(Pid) ->
+                        Meta;
+                    Meta = #{pid:=PidStr} when is_list(PidStr) ->
+                        Meta
+                end,
+            Log = #{level=>lager_msg:severity(Message),
+                    msg=>{report,lager_msg:message(Message)},
+                    meta=>Metadata},
+            io:put_chars(user, Formatter:format(Log,FormatConfig)),
+            {ok, State};
+        false ->
+            {ok, State}
+    end;
+handle_event(_Event, State) ->
+    {ok, State}.