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-rw-r--r--lib/observer/src/observer_wx.erl125
1 files changed, 110 insertions, 15 deletions
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.
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-02 12:29:35 +0000