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-rw-r--r--lib/observer/doc/src/observer_ug.xml23
-rw-r--r--lib/observer/src/observer_html_lib.erl8
-rw-r--r--lib/observer/src/observer_procinfo.erl80
-rw-r--r--lib/observer/src/observer_wx.erl125
-rw-r--r--lib/observer/test/observer_SUITE.erl35
5 files changed, 248 insertions, 23 deletions
diff --git a/lib/observer/doc/src/observer_ug.xml b/lib/observer/doc/src/observer_ug.xml
index 62f99c5210..fcb42f6c31 100644
--- a/lib/observer/doc/src/observer_ug.xml
+++ b/lib/observer/doc/src/observer_ug.xml
@@ -104,6 +104,29 @@
<note>
<p><em>Reds</em> can be presented as accumulated values or as values since last update.</p>
</note>
+ <p><c>Process info</c> open a detailed information window on the selected process.
+ <taglist>
+ <tag>Process Information</tag>
+ <item>Shows the process information.</item>
+ <tag>Messages</tag>
+ <item>Shows the process messages.</item>
+ <tag>Dictionary</tag>
+ <item>Shows the process dictionary.</item>
+ <tag>Stack Trace</tag>
+ <item>Shows the process current stack trace.</item>
+ <tag>State</tag>
+ <item>Show the process state.</item>
+ <tag>Log</tag>
+ <item>If enabled and available, show the process SASL log entries.</item>
+ </taglist>
+ <note>
+ <p><c>Log</c> needs SASL application to be started on the observed node, with log_mf_h as log handler.
+ The Observed node must be R16B02 or higher.
+ <c>rb</c> server must not be started on the observed node when clicking on menu 'Log/Toggle log view'.
+ <c>rb</c> server will be stopped on the observed node when exiting or changing observed node.
+ </p>
+ </note>
+ </p>
<p><c>Trace Processes</c> will add the selected process identifiers to the <c>Trace Overview</c> view and the
node the processes reside on will be added as well.
<c>Trace Named Processes</c> will add the registered name of processes. This can be useful
diff --git a/lib/observer/src/observer_html_lib.erl b/lib/observer/src/observer_html_lib.erl
index c279218707..53197078cf 100644
--- a/lib/observer/src/observer_html_lib.erl
+++ b/lib/observer/src/observer_html_lib.erl
@@ -60,7 +60,8 @@ expandable_term_body(Heading,[],_Tab) ->
"StackDump" -> "No stack dump was found";
"Dictionary" -> "No dictionary was found";
"ProcState" -> "Information could not be retrieved,"
- " system messages may not be handled by this process."
+ " system messages may not be handled by this process.";
+ "SaslLog" -> "No log entry was found"
end];
expandable_term_body(Heading,Expanded,Tab) ->
Attr = "BORDER=0 CELLPADDING=0 CELLSPACING=1 WIDTH=100%",
@@ -102,7 +103,10 @@ expandable_term_body(Heading,Expanded,Tab) ->
element(1, lists:mapfoldl(fun(Entry, Even) ->
{proc_state(Tab, Entry,Even),
not Even}
- end, true, Expanded))]);
+ end, true, Expanded))]);
+ "SaslLog" ->
+ table(Attr,
+ [tr("BGCOLOR=white",[td("ALIGN=left", pre(href_proc_port(Expanded)))])]) ;
_ ->
table(Attr,
[tr(
diff --git a/lib/observer/src/observer_procinfo.erl b/lib/observer/src/observer_procinfo.erl
index 8e8a37fc93..a8512894f9 100644
--- a/lib/observer/src/observer_procinfo.erl
+++ b/lib/observer/src/observer_procinfo.erl
@@ -43,6 +43,8 @@
-record(worker, {panel, callback}).
+-record(io, {rdata=""}).
+
start(Process, ParentFrame, Parent) ->
wx_object:start_link(?MODULE, [Process, ParentFrame, Parent], []).
@@ -69,6 +71,10 @@ init([Pid, ParentFrame, Parent]) ->
DictPage = init_panel(Notebook, "Dictionary", [Pid,Table], fun init_dict_page/3),
StackPage = init_panel(Notebook, "Stack Trace", [Pid], fun init_stack_page/2),
StatePage = init_panel(Notebook, "State", [Pid,Table], fun init_state_page/3),
+ Ps = case gen_server:call(observer, log_status) of
+ true -> [init_panel(Notebook, "Log", [Pid,Table], fun init_log_page/3)];
+ false -> []
+ end,
wxFrame:connect(Frame, close_window),
wxMenu:connect(Frame, command_menu_selected),
@@ -78,7 +84,7 @@ init([Pid, ParentFrame, Parent]) ->
pid=Pid,
frame=Frame,
notebook=Notebook,
- pages=[ProcessPage,MessagePage,DictPage,StackPage,StatePage],
+ pages=[ProcessPage,MessagePage,DictPage,StackPage,StatePage|Ps],
expand_table=Table
}}
catch error:{badrpc, _} ->
@@ -327,6 +333,26 @@ fetch_state_info2(Pid, M) ->
{badrpc,{'EXIT',{timeout, _}}} -> []
end.
+init_log_page(Parent, Pid, Table) ->
+ Win = observer_lib:html_window(Parent),
+ Update = fun() ->
+ Fd = spawn_link(fun() -> io_server() end),
+ rpc:call(node(Pid), rb, rescan, [[{start_log, Fd}]]),
+ rpc:call(node(Pid), rb , grep, [local_pid_str(Pid)]),
+ Logs = io_get_data(Fd),
+ %% Replace remote local pid notation to global notation
+ Pref = global_pid_node_pref(Pid),
+ ExpPid = re:replace(Logs,"<0\.","<" ++ Pref ++ ".",[global, {return, list}]),
+ %% Try to keep same look by removing blanks at right of rewritten PID
+ NbBlanks = length(Pref) - 1,
+ Re = "(<" ++ Pref ++ "\.[^>]{1,}>)[ ]{"++ integer_to_list(NbBlanks) ++ "}",
+ Look = re:replace(ExpPid, Re, "\\1", [global, {return, list}]),
+ Html = observer_html_lib:expandable_term("SaslLog", Look, Table),
+ wxHtmlWindow:setPage(Win, Html)
+ end,
+ Update(),
+ {Win, Update}.
+
create_menus(MenuBar) ->
Menus = [{"File", [#create_menu{id=?wxID_CLOSE, text="Close"}]},
{"View", [#create_menu{id=?REFRESH, text="Refresh\tCtrl-R"}]}],
@@ -409,3 +435,55 @@ filter_monitor_info() ->
Ms = proplists:get_value(monitors, Data),
[Pid || {process, Pid} <- Ms]
end.
+
+local_pid_str(Pid) ->
+ %% observer can observe remote nodes
+ %% There is no function to get the local
+ %% pid from the remote pid ...
+ %% So grep will fail to find remote pid in remote local log.
+ %% i.e. <4589.42.1> will not be found, but <0.42.1> will
+ %% Let's replace first integer by zero
+ "<0" ++ re:replace(pid_to_list(Pid),"\<([0-9]{1,})","",[{return, list}]).
+
+global_pid_node_pref(Pid) ->
+ %% Global PID node prefix : X of <X.Y.Z>
+ string:strip(string:sub_word(pid_to_list(Pid),1,$.),left,$<).
+
+
+io_get_data(Pid) ->
+ Pid ! {self(), get_data_and_close},
+ receive
+ {Pid, data, Data} -> lists:flatten(Data)
+ end.
+
+io_server() ->
+ io_server(#io{}).
+
+io_server(State) ->
+ receive
+ {io_request, From, ReplyAs, Request} ->
+ case io_request(Request,State) of
+ {Tag, Reply, NewState} when Tag =:= ok; Tag =:= error ->
+ From ! {io_reply, ReplyAs, Reply},
+ io_server(NewState);
+ {stop, Reply, _NewState} ->
+ From ! {io_reply, ReplyAs, Reply},
+ exit(Reply)
+ end;
+ {Pid, get_data_and_close} ->
+ Pid ! {self(), data, lists:reverse(State#io.rdata)},
+ normal;
+ _Unknown ->
+ io:format("~p: Unknown msg: ~p ~n",[?LINE, _Unknown]),
+ io_server(State)
+ end.
+
+io_request({put_chars, _Encoding, Chars}, State = #io{rdata=Data}) ->
+ {ok, ok, State#io{rdata=[Chars|Data]}};
+io_request({put_chars, Encoding, Module, Function, Args}, State) ->
+ try io_request({put_chars, Encoding, apply(Module, Function, Args)}, State)
+ catch _:_ -> {error, {error,Function}, State}
+ end;
+io_request(Req, State) ->
+ io:format("~p: Unknown req: ~p ~n",[?LINE, Req]),
+ State.
diff --git a/lib/observer/src/observer_wx.erl b/lib/observer/src/observer_wx.erl
index c86f5ea916..54c4092a78 100644
--- a/lib/observer/src/observer_wx.erl
+++ b/lib/observer/src/observer_wx.erl
@@ -37,6 +37,7 @@
-define(ID_CONNECT, 2).
-define(ID_NOTEBOOK, 3).
-define(ID_CDV, 4).
+-define(ID_LOGVIEW, 5).
-define(FIRST_NODES_MENU_ID, 1000).
-define(LAST_NODES_MENU_ID, 2000).
@@ -60,7 +61,8 @@
active_tab,
node,
nodes,
- prev_node=""
+ prev_node="",
+ log = false
}).
start() ->
@@ -215,14 +217,17 @@ handle_event(#wx{event=#wxNotebook{type=command_notebook_page_changing}},
{noreply, State#state{active_tab=Pid}}
end;
-handle_event(#wx{event = #wxClose{}}, State) ->
- {stop, normal, State};
-
handle_event(#wx{id = ?ID_CDV, event = #wxCommand{type = command_menu_selected}}, State) ->
spawn(crashdump_viewer, start, []),
{noreply, State};
-handle_event(#wx{id = ?wxID_EXIT, event = #wxCommand{type = command_menu_selected}}, State) ->
+handle_event(#wx{event = #wxClose{}}, #state{log=LogOn} = State) ->
+ LogOn andalso rpc:block_call(State#state.node, rb, stop, []),
+ {stop, normal, State};
+
+handle_event(#wx{id = ?wxID_EXIT, event = #wxCommand{type = command_menu_selected}},
+ #state{log=LogOn} = State) ->
+ LogOn andalso rpc:block_call(State#state.node, rb, stop, []),
{stop, normal, State};
handle_event(#wx{id = ?wxID_HELP, event = #wxCommand{type = command_menu_selected}}, State) ->
@@ -300,12 +305,42 @@ handle_event(#wx{id = ?ID_PING, event = #wxCommand{type = command_menu_selected}
end,
{noreply, UpdState};
-handle_event(#wx{id = Id, event = #wxCommand{type = command_menu_selected}}, State)
- when Id > ?FIRST_NODES_MENU_ID, Id < ?LAST_NODES_MENU_ID ->
+handle_event(#wx{id = ?ID_LOGVIEW, event = #wxCommand{type = command_menu_selected}},
+ #state{frame = Frame, log = PrevLog, node = Node} = State) ->
+ try
+ ok = ensure_sasl_started(Node),
+ ok = ensure_mf_h_handler_used(Node),
+ ok = ensure_rb_mode(Node, PrevLog),
+ case PrevLog of
+ false ->
+ rpc:block_call(Node, rb, start, []),
+ set_status("Observer - " ++ atom_to_list(Node) ++ " (rb_server started)"),
+ {noreply, State#state{log=true}};
+ true ->
+ rpc:block_call(Node, rb, stop, []),
+ set_status("Observer - " ++ atom_to_list(Node) ++ " (rb_server stopped)"),
+ {noreply, State#state{log=false}}
+ end
+ catch
+ throw:Reason ->
+ create_txt_dialog(Frame, Reason, "Log view status", ?wxICON_ERROR),
+ {noreply, State}
+ end;
- Node = lists:nth(Id - ?FIRST_NODES_MENU_ID, State#state.nodes),
- UpdState = change_node_view(Node, State),
- {noreply, UpdState};
+handle_event(#wx{id = Id, event = #wxCommand{type = command_menu_selected}},
+ #state{nodes= Ns , node = PrevNode, log = PrevLog} = State)
+ when Id > ?FIRST_NODES_MENU_ID, Id < ?LAST_NODES_MENU_ID ->
+ Node = lists:nth(Id - ?FIRST_NODES_MENU_ID, Ns),
+ %% Close rb_server only if another node than current one selected
+ LState = case PrevLog of
+ true -> case Node == PrevNode of
+ false -> rpc:block_call(PrevNode, rb, stop, []),
+ State#state{log=false} ;
+ true -> State
+ end;
+ false -> State
+ end,
+ {noreply, change_node_view(Node, LState)};
handle_event(Event, State) ->
Pid = get_active_pid(State),
@@ -340,6 +375,9 @@ handle_call(stop, _, State = #state{frame = Frame}) ->
wxFrame:destroy(Frame),
{stop, normal, ok, State};
+handle_call(log_status, _From, State) ->
+ {reply, State#state.log, State};
+
handle_call(_Msg, _From, State) ->
{reply, ok, State}.
@@ -422,8 +460,7 @@ return_to_localnode(Frame, Node) ->
end.
create_txt_dialog(Frame, Msg, Title, Style) ->
- MD = wxMessageDialog:new(Frame, Msg, [{style, Style}]),
- wxMessageDialog:setTitle(MD, Title),
+ MD = wxMessageDialog:new(Frame, Msg, [{style, Style}, {caption,Title}]),
wxDialog:showModal(MD),
wxDialog:destroy(MD).
@@ -569,17 +606,19 @@ default_menus(NodesMenuItems) ->
false -> {"Nodes", NodesMenuItems ++
[#create_menu{id = ?ID_CONNECT, text = "Enable distribution"}]}
end,
+ LogMenu = {"Log", [#create_menu{id = ?ID_LOGVIEW, text = "Toggle log view"}]},
case os:type() =:= {unix, darwin} of
false ->
FileMenu = {"File", [CDV, Quit]},
HelpMenu = {"Help", [About,Help]},
- [FileMenu, NodeMenu, HelpMenu];
+ [FileMenu, NodeMenu, LogMenu, HelpMenu];
true ->
%% On Mac quit and about will be moved to the "default' place
%% automagicly, so just add them to a menu that always exist.
%% But not to the help menu for some reason
- {Tag, Menus} = FileMenu,
- [{Tag, Menus ++ [About]}, NodeMenu, {"&Help", [Help]}]
+
+ {Tag, Menus} = NodeMenu,
+ [{Tag, Menus ++ [Quit,About]}, LogMenu, {"&Help", [Help]}]
end.
clean_menus(Menus, MenuBar) ->
@@ -658,3 +697,59 @@ update_node_list(State = #state{menubar=MenuBar}) ->
end,
observer_lib:create_menu_item(Dist, NodeMenu, Index),
State#state{nodes = Nodes}.
+
+ensure_sasl_started(Node) ->
+ %% is sasl started ?
+ Apps = rpc:block_call(Node, application, which_applications, []),
+ case lists:keyfind(sasl, 1, Apps) of
+ false -> throw("Error: sasl application not started."),
+ error;
+ {sasl, _, _} -> ok
+ end.
+
+ensure_mf_h_handler_used(Node) ->
+ %% is log_mf_h used ?
+ Handlers = rpc:block_call(Node, gen_event, which_handlers, [error_logger]),
+ case lists:any(fun(L)-> L == log_mf_h end, Handlers) of
+ false -> throw("Error: log_mf_h handler not used in sasl."),
+ error;
+ true -> ok
+ end.
+
+ensure_rb_mode(Node, PrevLog) ->
+ ok = ensure_rb_module_loaded(Node),
+ ok = is_rb_compatible(Node),
+ ok = is_rb_server_running(Node, PrevLog),
+ ok.
+
+
+ensure_rb_module_loaded(Node) ->
+ %% Need to ensure that module is loaded in order to detect exported
+ %% functions on interactive nodes
+ case rpc:block_call(Node, code, ensure_loaded, [rb]) of
+ {badrpc, Reason} ->
+ throw("Error: badrpc - " ++ io_lib:format("~tp",[Reason]));
+ {error, Reason} ->
+ throw("Error: rb module load error - " ++ io_lib:format("~tp",[Reason]));
+ {module,rb} ->
+ ok
+ end.
+
+is_rb_compatible(Node) ->
+ %% Simply test that rb:log_list/0 is exported
+ case rpc:block_call(Node, erlang, function_exported, [rb, log_list, 0]) of
+ false -> throw("Error: Node's Erlang release must be at least R16B02.");
+ true -> ok
+ end.
+
+is_rb_server_running(Node, LogState) ->
+ %% If already started, somebody else may use it.
+ %% We can not use it too, as far log file would be overriden. Not fair.
+ case rpc:block_call(Node, erlang, whereis, [rb_server]) of
+ Pid when is_pid(Pid), (LogState == false) ->
+ throw("Error: rb_server is already started and maybe used by someone.");
+ Pid when is_pid(Pid) ->
+ ok;
+ undefined ->
+ ok
+ end.
diff --git a/lib/observer/test/observer_SUITE.erl b/lib/observer/test/observer_SUITE.erl
index 5cf719acb1..c69fdf4bdf 100644
--- a/lib/observer/test/observer_SUITE.erl
+++ b/lib/observer/test/observer_SUITE.erl
@@ -22,6 +22,8 @@
-include_lib("wx/include/wx.hrl").
-include_lib("observer/src/observer_tv.hrl").
+-define(ID_LOGVIEW, 5).
+
%% Test server specific exports
-export([all/0, suite/0,groups/0]).
-export([init_per_testcase/2, end_per_testcase/2,
@@ -44,8 +46,9 @@ all() ->
groups() ->
[{gui, [],
- [basic
- , process_win, table_win
+ [basic,
+ process_win,
+ table_win
]
}].
@@ -107,7 +110,7 @@ appup_file(Config) when is_list(Config) ->
basic(suite) -> [];
basic(doc) -> [""];
basic(Config) when is_list(Config) ->
- timer:send_after(100, "foobar"), %% Otherwise the timer sever gets added to procs
+ timer:send_after(100, "foobar"), %% Otherwise the timer server gets added to procs
ProcsBefore = processes(),
NumProcsBefore = length(ProcsBefore),
@@ -126,7 +129,7 @@ basic(Config) when is_list(Config) ->
timer:sleep(200),
ok = wxNotebook:advanceSelection(Notebook)
end,
- %% Just verify that we can toogle trough all pages
+ %% Just verify that we can toggle through all pages
[_|_] = [Check(N, false) || N <- lists:seq(1, Count)],
%% Cause it to resize
Frame = get_top_level_parent(Notebook),
@@ -214,10 +217,27 @@ test_page(Title, Window) ->
process_win(suite) -> [];
process_win(doc) -> [""];
process_win(Config) when is_list(Config) ->
+ % Stop SASL if already started
+ SaslStart = case whereis(sasl_sup) of
+ undefined -> false;
+ _ -> application:stop(sasl),
+ true
+ end,
+ % Define custom sasl and log_mf_h app vars
+ Privdir=?config(priv_dir,Config),
+ application:set_env(sasl, sasl_error_logger, tty),
+ application:set_env(sasl, error_logger_mf_dir, Privdir),
+ application:set_env(sasl, error_logger_mf_maxbytes, 1000),
+ application:set_env(sasl, error_logger_mf_maxfiles, 5),
+ application:start(sasl),
ok = observer:start(),
ObserverNB = setup_whitebox_testing(),
Parent = get_top_level_parent(ObserverNB),
- Frame = observer_procinfo:start(self(), Parent, self()),
+ % Activate log view
+ whereis(observer) ! #wx{id = ?ID_LOGVIEW, event = #wxCommand{type = command_menu_selected}},
+ timer:sleep(1000),
+ % Process window tests (use sasl_sup for a non empty Log tab)
+ Frame = observer_procinfo:start(whereis(sasl_sup), Parent, self()),
PIPid = wx_object:get_pid(Frame),
PIPid ! {get_debug_info, self()},
Notebook = receive {procinfo_debug, NB} -> NB end,
@@ -229,6 +249,11 @@ process_win(Config) when is_list(Config) ->
[_|_] = [Check(N) || N <- lists:seq(1, Count)],
PIPid ! #wx{event=#wxClose{type=close_window}},
observer:stop(),
+ application:stop(sasl),
+ case SaslStart of
+ true -> application:start(sasl);
+ false -> ok
+ end,
ok.
table_win(suite) -> [];
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-02 19:03:55 +0000