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File 7881-stdlib-Report-progress-for-dynamically-started-super.patch of Package erlang (Revision 1fca9f2f48345e43a61098f600f2b10f)

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From 62ba3380e616dc5cf60e377889fc7962c373e1ee Mon Sep 17 00:00:00 2001
From: Ingela Anderton Andin <ingela@erlang.org>
Date: Wed, 21 Aug 2024 12:32:14 +0200
Subject: [PATCH] stdlib: Report progress for dynamically started supervisors
 on debug level

---
 lib/stdlib/src/supervisor.erl        | 28 +++++++++++------
 lib/stdlib/test/supervisor_SUITE.erl | 45 ++++++++++++++++++++--------
 2 files changed, 51 insertions(+), 22 deletions(-)

diff --git a/lib/stdlib/src/supervisor.erl b/lib/stdlib/src/supervisor.erl
index 23aac8b9e1..dbd584ddbd 100644
--- a/lib/stdlib/src/supervisor.erl
+++ b/lib/stdlib/src/supervisor.erl
@@ -926,7 +926,7 @@ init_dynamic(_State, StartSpec) ->
 start_children(Children, SupName) ->
     Start =
         fun(Id,Child) ->
-                case do_start_child(SupName, Child) of
+                case do_start_child(SupName, Child, info_report) of
                     {ok, undefined} when ?is_temporary(Child) ->
                         remove;
                     {ok, Pid} ->
@@ -940,16 +940,16 @@ start_children(Children, SupName) ->
         end,
     children_map(Start,Children).
 
-do_start_child(SupName, Child) ->
+do_start_child(SupName, Child, Report) ->
     #child{mfargs = {M, F, Args}} = Child,
     case do_start_child_i(M, F, Args) of
 	{ok, Pid} when is_pid(Pid) ->
 	    NChild = Child#child{pid = Pid},
-	    report_progress(NChild, SupName),
+	    report_progress(NChild, SupName, Report),
 	    {ok, Pid};
 	{ok, Pid, Extra} when is_pid(Pid) ->
 	    NChild = Child#child{pid = Pid},
-	    report_progress(NChild, SupName),
+	    report_progress(NChild, SupName, Report),
 	    {ok, Pid, Extra};
         Other ->
             Other
@@ -1025,7 +1025,7 @@ handle_call({restart_child, _Id}, _From, State) when ?is_simple(State) ->
 handle_call({restart_child, Id}, _From, State) ->
     case find_child(Id, State) of
 	{ok, Child} when Child#child.pid =:= undefined ->
-	    case do_start_child(State#state.name, Child) of
+	    case do_start_child(State#state.name, Child, debug_report) of
 		{ok, Pid} ->
 		    NState = set_pid(Pid, Id, State),
 		    {reply, {ok, Pid}, NState};
@@ -1253,7 +1253,7 @@ update_chsp(#child{id=Id}=OldChild, NewDb) ->
 handle_start_child(Child, State) ->
     case find_child(Child#child.id, State) of
 	error ->
-	    case do_start_child(State#state.name, Child) of
+	    case do_start_child(State#state.name, Child, debug_report) of
 		{ok, undefined} when ?is_temporary(Child) ->
 		    {{ok, undefined}, State};
 		{ok, Pid} ->
@@ -1387,7 +1387,7 @@ restart(simple_one_for_one, Child, State0) ->
     end;
 restart(one_for_one, #child{id=Id} = Child, State) ->
     OldPid = Child#child.pid,
-    case do_start_child(State#state.name, Child) of
+    case do_start_child(State#state.name, Child, info_report) of
 	{ok, Pid} ->
 	    NState = set_pid(Pid, Id, State),
 	    {ok, NState};
@@ -2114,7 +2114,7 @@ extract_child(Child) ->
      {shutdown, Child#child.shutdown},
      {child_type, Child#child.child_type}].
 
-report_progress(Child, SupName) ->
+report_progress(Child, SupName, info_report) ->
     ?LOG_INFO(#{label=>{supervisor,progress},
                 report=>[{supervisor,SupName},
                          {started,extract_child(Child)}]},
@@ -2123,7 +2123,17 @@ report_progress(Child, SupName) ->
                 logger_formatter=>#{title=>"PROGRESS REPORT"},
                 error_logger=>#{tag=>info_report,
                                 type=>progress,
-                                report_cb=>fun supervisor:format_log/1}}).
+                                report_cb=>fun supervisor:format_log/1}});
+report_progress(Child, SupName, debug_report) ->
+    ?LOG_DEBUG(#{label=>{supervisor,progress},
+                 report=>[{supervisor,SupName},
+                          {started,extract_child(Child)}]},
+               #{domain=>[otp,sasl],
+                 report_cb=>fun supervisor:format_log/2,
+                logger_formatter=>#{title=>"PROGRESS REPORT"},
+                 error_logger=>#{tag=>info_report,
+                                 type=>progress,
+                                 report_cb=>fun supervisor:format_log/1}}).
 
 %% format_log/1 is the report callback used by Logger handler
 %% error_logger only. It is kept for backwards compatibility with
diff --git a/lib/stdlib/test/supervisor_SUITE.erl b/lib/stdlib/test/supervisor_SUITE.erl
index cbf12e98a2..ced6145f42 100644
--- a/lib/stdlib/test/supervisor_SUITE.erl
+++ b/lib/stdlib/test/supervisor_SUITE.erl
@@ -30,7 +30,7 @@
 
 %% Internal export
 -export([init/1, terminate_all_children/1,
-         middle9212/0, gen_server9212/0, handle_info/2, start_registered_name/1]).
+         middle9212/0, gen_server9212/0, handle_info/2, start_registered_name/1, log/2]).
 
 %% API tests
 -export([ sup_start_normal/1, sup_start_ignore_init/1, 
@@ -51,13 +51,12 @@
 	  extra_return/1, sup_flags/1]).
 
 %% Tests concept permanent, transient and temporary 
--export([ permanent_normal/1, transient_normal/1,
-	  temporary_normal/1,
-	  permanent_shutdown/1, transient_shutdown/1,
-	  temporary_shutdown/1,
-          faulty_application_shutdown/1,
-	  permanent_abnormal/1, transient_abnormal/1,
-	  temporary_abnormal/1, temporary_bystander/1]).
+-export([external_start_no_progress_log/1, 
+         permanent_normal/1, transient_normal/1, temporary_normal/1,
+         permanent_shutdown/1, transient_shutdown/1, temporary_shutdown/1,
+         faulty_application_shutdown/1,
+         permanent_abnormal/1, transient_abnormal/1,
+         temporary_abnormal/1, temporary_bystander/1]).
 
 %% Restart strategy tests 
 -export([ multiple_restarts/1,
@@ -96,7 +95,7 @@
 %%-------------------------------------------------------------------------
 
 suite() ->
-    [{ct_hooks,[ts_install_cth]},
+    [%{ct_hooks,[ts_install_cth]},
      {timetrap,{minutes,1}}].
 
 all() -> 
@@ -140,7 +139,7 @@ groups() ->
        sup_stop_brutal_kill, sup_stop_brutal_kill_dynamic,
        sup_stop_race, sup_stop_non_shutdown_exit_dynamic]},
      {normal_termination, [],
-      [permanent_normal, transient_normal, temporary_normal]},
+      [external_start_no_progress_log, permanent_normal, transient_normal, temporary_normal]},
      {shutdown_termination, [],
       [permanent_shutdown, transient_shutdown, temporary_shutdown,
        faulty_application_shutdown]},
@@ -1047,17 +1046,29 @@ sup_flags(_Config) ->
 
     ok.
 
+%%-------------------------------------------------------------------------
+external_start_no_progress_log(Config) when is_list(Config) ->
+    ok = logger:add_handler(?MODULE, ?MODULE, #{test_case_pid => self()}),
+    Filter = {fun logger_filters:domain/2,{log,sub,[otp,sasl]}},
+    logger:add_handler_filter(?MODULE, filter_non_sasl, Filter),
+    logger:set_module_level([supervisor], info),
+    permanent_normal(Config),
+    receive
+        ok ->
+            ok = logger:remove_handler(?MODULE);
+        {fail, Msg} ->
+            ok = logger:remove_handler(?MODULE),
+            ct:fail({"unexpected progress report", Msg})
+    end.
+
 %%-------------------------------------------------------------------------
 %% A permanent child should always be restarted.
 permanent_normal(Config) when is_list(Config) ->
     {ok, SupPid} = start_link({ok, {{one_for_one, 2, 3600}, []}}),
     Child1 = {child1, {supervisor_1, start_child, []}, permanent, 1000,
 	      worker, []},
-
     {ok, CPid1} = supervisor:start_child(sup_test, Child1),
-
     terminate(SupPid, CPid1, child1, normal),
-
     [{child1, Pid ,worker,[]}] = supervisor:which_children(sup_test),
     case is_pid(Pid) of
 	true ->
@@ -3819,3 +3830,11 @@ ensure_supervisor_is_stopped() ->
         Pid ->
             terminate(Pid, shutdown)
     end.
+
+%%-----------------------------------------------------------------
+%% The Logger handler used.
+%%-----------------------------------------------------------------
+log(#{meta := #{mfa := {supervisor,do_restart,3}}}, #{test_case_pid := Pid}) ->
+    Pid ! ok;
+log(#{level := info, msg := Msg}, #{test_case_pid := Pid}) ->
+    Pid ! {fail, Msg}.
-- 
2.43.0

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File 7881-stdlib-Report-progress-for-dynamically-started-super.patch of Package erlang (Revision 1fca9f2f48345e43a61098f600f2b10f)

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