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-rw-r--r--lib/sasl/doc/src/overload.xml6
-rw-r--r--lib/sasl/doc/src/sasl_app.xml6
-rw-r--r--lib/sasl/src/overload.erl2
-rw-r--r--lib/sasl/src/release_handler_1.erl100
-rw-r--r--lib/sasl/src/sasl.app.src2
-rw-r--r--lib/sasl/test/release_handler_SUITE.erl2
6 files changed, 61 insertions, 57 deletions
diff --git a/lib/sasl/doc/src/overload.xml b/lib/sasl/doc/src/overload.xml
index 5c3d00afeb..2f19cd9088 100644
--- a/lib/sasl/doc/src/overload.xml
+++ b/lib/sasl/doc/src/overload.xml
@@ -35,6 +35,12 @@
<module>overload</module>
<modulesummary>An Overload Regulation Process</modulesummary>
<description>
+ <warning>
+ <p>
+ All functions in this module are deprecated and will be
+ removed in a future release.
+ </p>
+ </warning>
<p><c>overload</c> is a process that indirectly regulates the CPU
usage in the system. The idea is that a main application calls
function
diff --git a/lib/sasl/doc/src/sasl_app.xml b/lib/sasl/doc/src/sasl_app.xml
index 8d79251c7e..bcd446a868 100644
--- a/lib/sasl/doc/src/sasl_app.xml
+++ b/lib/sasl/doc/src/sasl_app.xml
@@ -34,7 +34,7 @@
<p>The <c>SASL</c> application provides the following services:</p>
<list type="bulleted">
<item><c>alarm_handler</c></item>
- <item><c>overload</c></item>
+ <item><c>overload</c> (deprecated)</item>
<item><c>rb</c></item>
<item><c>release_handler</c></item>
<item><c>systools</c></item>
@@ -145,11 +145,15 @@
<p>Specifies the maximum intensity
for <seealso marker="overload"><c>overload</c></seealso>. Default
is <c>0.8</c>.</p>
+ <p>Note that the <c>overload</c> module is deprected and
+ will be removed in a future release.</p>
</item>
<tag><c><![CDATA[overload_weight = float() > 0 ]]></c></tag>
<item>
<p>Specifies the <seealso marker="overload"><c>overload</c></seealso>
weight. Default is <c>0.1</c>.</p>
+ <p>Note that the <c>overload</c> module is deprected and
+ will be removed in a future release.</p>
</item>
<tag><c><![CDATA[start_prg = string() ]]></c></tag>
<item>
diff --git a/lib/sasl/src/overload.erl b/lib/sasl/src/overload.erl
index 61b925d219..bc8ab7d5e4 100644
--- a/lib/sasl/src/overload.erl
+++ b/lib/sasl/src/overload.erl
@@ -19,6 +19,8 @@
%%
-module(overload).
+-deprecated(module).
+
-export([start_link/0, request/0, set_config_data/2,
get_overload_info/0]).
diff --git a/lib/sasl/src/release_handler_1.erl b/lib/sasl/src/release_handler_1.erl
index 536ac924d4..a6325270a5 100644
--- a/lib/sasl/src/release_handler_1.erl
+++ b/lib/sasl/src/release_handler_1.erl
@@ -587,12 +587,12 @@ get_supervised_procs() ->
get_application_names()).
get_supervised_procs(_, Root, Procs, {ok, SupMod}) ->
- get_procs(maybe_supervisor_which_children(get_proc_state(Root), SupMod, Root), Root) ++
+ get_procs(maybe_supervisor_which_children(Root, SupMod, Root), Root) ++
[{undefined, undefined, Root, [SupMod]} | Procs];
get_supervised_procs(Application, Root, Procs, {error, _}) ->
error_logger:error_msg("release_handler: cannot find top supervisor for "
"application ~w~n", [Application]),
- get_procs(maybe_supervisor_which_children(get_proc_state(Root), Application, Root), Root) ++ Procs.
+ get_procs(maybe_supervisor_which_children(Root, Application, Root), Root) ++ Procs.
get_application_names() ->
lists:map(fun({Application, _Name, _Vsn}) ->
@@ -613,33 +613,54 @@ get_procs([{Name, Pid, worker, Mods} | T], Sup) when is_pid(Pid), is_list(Mods)
[{Sup, Name, Pid, Mods} | get_procs(T, Sup)];
get_procs([{Name, Pid, supervisor, Mods} | T], Sup) when is_pid(Pid) ->
[{Sup, Name, Pid, Mods} | get_procs(T, Sup)] ++
- get_procs(maybe_supervisor_which_children(get_proc_state(Pid), Name, Pid), Pid);
+ get_procs(maybe_supervisor_which_children(Pid, Name, Pid), Pid);
get_procs([_H | T], Sup) ->
get_procs(T, Sup);
get_procs(_, _Sup) ->
[].
+maybe_supervisor_which_children(Proc, Name, Pid) ->
+ case get_proc_state(Proc) of
+ noproc ->
+ %% process exited before we could interrogate it.
+ %% not necessarily a bug, but reporting a warning as a curiosity.
+ error_logger:warning_msg("release_handler: a process (~p) exited"
+ " during supervision tree interrogation."
+ " Continuing ...~n", [Proc]),
+ [];
+
+ suspended ->
+ error_logger:error_msg("release_handler: a which_children call"
+ " to ~p (~w) was avoided. This supervisor"
+ " is suspended and should likely be upgraded"
+ " differently. Exiting ...~n", [Name, Pid]),
+ error(suspended_supervisor);
+
+ running ->
+ case catch supervisor:which_children(Pid) of
+ Res when is_list(Res) ->
+ Res;
+ Other ->
+ error_logger:error_msg("release_handler: ~p~nerror during"
+ " a which_children call to ~p (~w)."
+ " [State: running] Exiting ... ~n",
+ [Other, Name, Pid]),
+ error(which_children_failed)
+ end
+ end.
+
get_proc_state(Proc) ->
- {status, _, {module, _}, [_, State, _, _, _]} = sys:get_status(Proc),
- State.
-
-maybe_supervisor_which_children(suspended, Name, Pid) ->
- error_logger:error_msg("release_handler: a which_children call"
- " to ~p (~w) was avoided. This supervisor"
- " is suspended and should likely be upgraded"
- " differently. Exiting ...~n", [Name, Pid]),
- error(suspended_supervisor);
-
-maybe_supervisor_which_children(State, Name, Pid) ->
- case catch supervisor:which_children(Pid) of
- Res when is_list(Res) ->
- Res;
- Other ->
- error_logger:error_msg("release_handler: ~p~nerror during"
- " a which_children call to ~p (~w)."
- " [State: ~p] Exiting ... ~n",
- [Other, Name, Pid, State]),
- error(which_children_failed)
+ %% sys:send_system_msg can exit with {noproc, {m,f,a}}.
+ %% This happens if a supervisor exits after which_children has provided
+ %% its pid for interrogation.
+ %% ie. Proc may no longer be running at this point.
+ try sys:get_status(Proc) of
+ %% as per sys:get_status/1, SysState can only be running | suspended.
+ {status, _, {module, _}, [_, State, _, _, _]} when State == running ;
+ State == suspended ->
+ State
+ catch exit:{noproc, {sys, get_status, [Proc]}} ->
+ noproc
end.
maybe_get_dynamic_mods(Name, Pid) ->
@@ -655,48 +676,19 @@ maybe_get_dynamic_mods(Name, Pid) ->
error(get_modules_failed)
end.
-%% XXXX
-%% Note: The following is a terrible hack done in order to resolve the
-%% problem stated in ticket OTP-3452.
-
-%% XXXX NOTE WELL: This record is from supervisor.erl. Also the record
-%% name is really `state'.
--record(supervisor_state, {name,
- strategy,
- children = [],
- dynamics = [],
- intensity,
- period,
- restarts = [],
- module,
- args}).
-
%% Return the name of the call-back module that implements the
%% (top) supervisor SupPid.
%% Returns: {ok, Module} | {error,undefined}
%%
get_supervisor_module(SupPid) ->
- case catch get_supervisor_module1(SupPid) of
- {ok, Module} when is_atom(Module) ->
+ case catch supervisor:get_callback_module(SupPid) of
+ Module when is_atom(Module) ->
{ok, Module};
_Other ->
io:format("~w: reason: ~w~n", [SupPid, _Other]),
{error, undefined}
end.
-get_supervisor_module1(SupPid) ->
- {status, _Pid, {module, _Mod},
- [_PDict, _SysState, _Parent, _Dbg, Misc]} = sys:get_status(SupPid),
- %% supervisor Misc field changed at R13B04, handle old and new variants here
- State = case Misc of
- [_Name, State1, _Type, _Time] ->
- State1;
- [_Header, _Data, {data, [{"State", State2}]}] ->
- State2
- end,
- %% Cannot use #supervisor_state{module = Module} = State.
- {ok, element(#supervisor_state.module, State)}.
-
%%-----------------------------------------------------------------
%% Func: do_soft_purge/3
%% Args: Mod = atom()
diff --git a/lib/sasl/src/sasl.app.src b/lib/sasl/src/sasl.app.src
index 705bb73fc5..507e2dc229 100644
--- a/lib/sasl/src/sasl.app.src
+++ b/lib/sasl/src/sasl.app.src
@@ -46,6 +46,6 @@
{env, [{sasl_error_logger, tty},
{errlog_type, all}]},
{mod, {sasl, []}},
- {runtime_dependencies, ["tools-2.6.14","stdlib-2.6","kernel-4.1",
+ {runtime_dependencies, ["tools-2.6.14","stdlib-2.8","kernel-4.1",
"erts-6.0"]}]}.
diff --git a/lib/sasl/test/release_handler_SUITE.erl b/lib/sasl/test/release_handler_SUITE.erl
index d57de2593a..ee620dcdb4 100644
--- a/lib/sasl/test/release_handler_SUITE.erl
+++ b/lib/sasl/test/release_handler_SUITE.erl
@@ -1363,7 +1363,7 @@ upgrade_supervisor(Conf) when is_list(Conf) ->
%% Check that the restart strategy and child spec is updated
{status, _, {module, _}, [_, _, _, _, [_,_,{data,[{"State",State}]}]]} =
rpc:call(Node,sys,get_status,[a_sup]),
- {state,_,RestartStrategy,[Child],_,_,_,_,_,_} = State,
+ {state,_,RestartStrategy,[Child],_,_,_,_,_,_,_} = State,
one_for_all = RestartStrategy, % changed from one_for_one
{child,_,_,_,_,brutal_kill,_,_} = Child, % changed from timeout 2000
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-02 00:18:23 +0000