%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2011-2013. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
%% You may obtain a copy of the License at
%%
%% http://www.apache.org/licenses/LICENSE-2.0
%%
%% Unless required by applicable law or agreed to in writing, software
%% distributed under the License is distributed on an "AS IS" BASIS,
%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
%% See the License for the specific language governing permissions and
%% limitations under the License.
%%
%% %CopyrightEnd%
-module(observer_sys_wx).
-behaviour(wx_object).
-export([start_link/2]).
%% wx_object callbacks
-export([init/1, handle_info/2, terminate/2, code_change/3, handle_call/3,
handle_event/2, handle_cast/2]).
-include_lib("wx/include/wx.hrl").
-include("observer_defs.hrl").
-define(ID_REFRESH, 101).
-define(ID_REFRESH_INTERVAL, 102).
%% Records
-record(sys_wx_state,
{parent,
node,
parent_notebook,
panel, sizer,
menubar,
fields,
timer}).
start_link(Notebook, Parent) ->
wx_object:start_link(?MODULE, [Notebook, Parent], []).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
init([Notebook, Parent]) ->
SysInfo = observer_backend:sys_info(),
{Info, Stat} = info_fields(),
Panel = wxPanel:new(Notebook),
Sizer = wxBoxSizer:new(?wxVERTICAL),
TopSizer = wxBoxSizer:new(?wxHORIZONTAL),
{FPanel0, _FSizer0, Fields0} =
observer_lib:display_info(Panel, observer_lib:fill_info(Info, SysInfo)),
{FPanel1, _FSizer1, Fields1} =
observer_lib:display_info(Panel, observer_lib:fill_info(Stat, SysInfo)),
wxSizer:add(TopSizer, FPanel0, [{flag, ?wxEXPAND}, {proportion, 1}]),
wxSizer:add(TopSizer, FPanel1, [{flag, ?wxEXPAND}, {proportion, 1}]),
BorderFlags = ?wxLEFT bor ?wxRIGHT,
wxSizer:add(Sizer, TopSizer, [{flag, ?wxEXPAND bor BorderFlags bor ?wxTOP},
{proportion, 0}, {border, 5}]),
wxPanel:setSizer(Panel, Sizer),
Timer = observer_lib:start_timer(10),
{Panel, #sys_wx_state{parent=Parent,
parent_notebook=Notebook,
panel=Panel, sizer=Sizer,
timer=Timer, fields=Fields0 ++ Fields1}}.
create_sys_menu(Parent) ->
View = {"View", [#create_menu{id = ?ID_REFRESH, text = "Refresh\tCtrl-R"},
#create_menu{id = ?ID_REFRESH_INTERVAL, text = "Refresh interval"}]},
observer_wx:create_menus(Parent, [View]).
update_syspage(#sys_wx_state{node = Node, fields=Fields, sizer=Sizer}) ->
SysInfo = observer_wx:try_rpc(Node, observer_backend, sys_info, []),
{Info, Stat} = info_fields(),
observer_lib:update_info(Fields, observer_lib:fill_info(Info, SysInfo) ++
observer_lib:fill_info(Stat, SysInfo)),
wxSizer:layout(Sizer).
info_fields() ->
Info = [{"System and Architecture",
[{"System Version", otp_release},
{"ERTS Version", version},
{"Compiled for", system_architecture},
{"Emulator Wordsize", wordsize_external},
{"Process Wordsize", wordsize_internal},
{"SMP Support", smp_support},
{"Thread Support", threads},
{"Async thread pool size", thread_pool_size}
]},
{"CPU's and Threads",
[{"Logical CPU's", logical_processors},
{"Online Logical CPU's", logical_processors_online},
{"Available Logical CPU's", logical_processors_available},
{"Schedulers", schedulers},
{"Online schedulers", schedulers_online},
{"Available schedulers", schedulers_available}
]}
],
Stat = [{"Memory Usage", right,
[{"Total", {bytes, total}},
{"Processes", {bytes, processes}},
{"Atoms", {bytes, atom}},
{"Binaries", {bytes, binary}},
{"Code", {bytes, code}},
{"ETS", {bytes, ets}}
]},
{"Statistics", right,
[{"Up time", {time_ms, uptime}},
{"Max Processes", process_limit},
{"Processes", process_count},
{"Run Queue", run_queue},
{"IO Input", {bytes, io_input}},
{"IO Output", {bytes, io_output}}
]}
],
{Info, Stat}.
%%%%%%%%%%%%%%%%%%%%%%% Callbacks %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
handle_info(refresh_interval, #sys_wx_state{panel = Panel,
node = Node} = State) ->
try
update_syspage(State)
catch error:{badrpc, _} ->
observer_wx:return_to_localnode(Panel, Node)
end,
{noreply, State};
handle_info({active, Node}, #sys_wx_state{parent = Parent, panel = Panel,
timer = Timer} = State) ->
UpdState = State#sys_wx_state{node = Node},
create_sys_menu(Parent),
try
update_syspage(UpdState),
{noreply, UpdState#sys_wx_state{timer=observer_lib:start_timer(Timer)}}
catch error:{badrpc, _} ->
observer_wx:return_to_localnode(Panel, Node),
{noreply, State}
end;
handle_info(not_active, #sys_wx_state{timer = Timer} = State) ->
{noreply, State#sys_wx_state{timer = observer_lib:stop_timer(Timer)}};
handle_info(Info, State) ->
io:format("~p:~p: Unhandled info: ~p~n", [?MODULE, ?LINE, Info]),
{noreply, State}.
terminate(_Reason, _State) ->
ok.
code_change(_, _, State) ->
{ok, State}.
handle_call(Msg, _From, State) ->
io:format("~p~p: Unhandled Call ~p~n",[?MODULE, ?LINE, Msg]),
{reply, ok, State}.
handle_cast(Msg, State) ->
io:format("~p~p: Unhandled cast ~p~n",[?MODULE, ?LINE, Msg]),
{noreply, State}.
handle_event(#wx{id = ?ID_REFRESH, event = #wxCommand{type = command_menu_selected}},
#sys_wx_state{node = Node, panel = Panel} = State) ->
try
update_syspage(State)
catch error:{badrpc, _} ->
observer_wx:return_to_localnode(Panel, Node)
end,
{noreply, State};
handle_event(#wx{id = ?ID_REFRESH_INTERVAL,
event = #wxCommand{type = command_menu_selected}},
#sys_wx_state{timer = Timer0, parent_notebook = Notebook} = State) ->
Timer = observer_lib:interval_dialog(Notebook, Timer0, 1, 5*60),
{noreply, State#sys_wx_state{timer=Timer}};
handle_event(Event, State) ->
io:format("~p:~p: Unhandled event ~p\n", [?MODULE,?LINE,Event]),
{noreply, State}.
