1 files changed, 55 insertions, 1 deletions

diff --git a/lib/observer/src/observer_procinfo.erl b/lib/observer/src/observer_procinfo.erl
index 45218c177b..4ab4715e1f 100644
--- a/lib/observer/src/observer_procinfo.erl
+++ b/lib/observer/src/observer_procinfo.erl
@@ -64,6 +64,7 @@ init([Pid, ParentFrame, Parent]) ->
 	MessagePage = init_panel(Notebook, "Messages", Pid, fun init_message_page/2),
 	DictPage    = init_panel(Notebook, "Dictionary", Pid, fun init_dict_page/2),
 	StackPage   = init_panel(Notebook, "Stack Trace", Pid, fun init_stack_page/2),
+	StatePage   = init_panel(Notebook, "State", Pid, fun init_state_page/2),
 
 	wxFrame:connect(Frame, close_window),
 	wxMenu:connect(Frame, command_menu_selected),
@@ -72,7 +73,7 @@ init([Pid, ParentFrame, Parent]) ->
 	{Frame, #state{parent=Parent,
 		       pid=Pid,
 		       frame=Frame,
-		       pages=[ProcessPage,MessagePage,DictPage,StackPage]
+		       pages=[ProcessPage,MessagePage,DictPage,StackPage,StatePage]
 		      }}
     catch error:{badrpc, _} ->
 	    observer_wx:return_to_localnode(ParentFrame, node(Pid)),
@@ -235,6 +236,59 @@ init_stack_page(Parent, Pid) ->
     Update(),
     {LCtrl, Update}.
 
+
+init_state_page(Parent, Pid) ->
+    Text = init_text_page(Parent),
+	Update = fun() ->
+			%% First, test if sys:get_status/2 have any chance to return an answer
+			case rpc:call(node(Pid), proc_lib, translate_initial_call, [Pid])
+			of
+			%% Not a gen process
+			{proc_lib,init_p,5} -> Misc = [{"Information", "Not available"}];
+			%% May be a gen process
+			{M, _F, _A} ->
+					%% Get the behavio(u)r
+					I = rpc:call(node(Pid), M, module_info, [attributes]),
+					case lists:keyfind(behaviour, 1, I) of
+						false -> case lists:keyfind(behavior, 1, I) of
+								false		-> B = undefined;
+								{behavior, [B]}	-> B
+							end;
+						{behaviour, [B]} -> B
+					end,
+					%% but not sure that system messages are treated by this process
+					%% so using a rpc with a small timeout in order not to lag the display
+					case rpc:call(node(Pid), sys, get_status, [Pid, 200])
+					of
+					{status, _, {module, _}, [_PDict, _SysState, _Parent, _Dbg,
+						[Header,{data, First},{data, Second}]]} ->
+							Misc = [{"Behaviour", B}] ++ [Header] ++ First ++ Second;
+					{status, _, {module, _}, [_PDict, _SysState, _Parent, _Dbg,
+						[Header,{data, First}, OtherFormat]]} ->
+							Misc = [{"Behaviour", B}] ++ [Header] ++ First ++ [{"State",OtherFormat}];
+					{status, _, {module, _}, [_PDict, _SysState, _Parent, _Dbg,
+						OtherFormat]} ->
+							%% Formatted status ?
+							case lists:keyfind(format_status, 1, rpc:call(node(Pid), M, module_info, [exports])) of
+								false	-> Opt = {"Format", unknown};
+								_	-> Opt = {"Format", overriden}
+							end,
+							Misc = [{"Behaviour", B}] ++ [Opt, {"State",OtherFormat}];
+					{badrpc,{'EXIT',{timeout, _}}} ->
+							Misc = [{"Information","Timed out"},
+								{"Tip","system messages are certainly not treated by this process"}]
+					end;
+			_ -> Misc=[], throw(process_undefined)
+			end,
+			Dict = [io_lib:format("~-20.s ~tp~n", [K, V]) || {K, V} <- Misc],
+			Last = wxTextCtrl:getLastPosition(Text),
+			wxTextCtrl:remove(Text, 0, Last),
+			wxTextCtrl:writeText(Text, Dict)
+	end,
+	Update(),
+	{Text, Update}.
+
+
 create_menus(MenuBar) ->
     Menus = [{"File", [#create_menu{id=?wxID_CLOSE, text="Close"}]},
 	     {"View", [#create_menu{id=?REFRESH, text="Refresh\tCtrl-R"}]}],