%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2002-2017. 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(etop_txt).
-author('[email protected]').
%%-compile(export_all).
-export([init/1,stop/1]).
-export([do_update/4]).
-include("etop.hrl").
-include("etop_defs.hrl").
-import(etop,[loadinfo/2,meminfo/2]).
stop(Pid) -> Pid ! stop.
init(Config) ->
loop(#etop_info{},Config).
loop(Prev,Config) ->
Info = do_update(Prev,Config),
receive
stop -> stopped;
{dump,Fd} -> do_update(Fd,Info,Prev,Config), loop(Info,Config);
{config,_,Config1} -> loop(Info,Config1)
after Config#opts.intv -> loop(Info,Config)
end.
do_update(Prev,Config) ->
Info = etop:update(Config),
do_update(standard_io,Info,Prev,Config).
do_update(Fd,Info,Prev,Config) ->
Encoding = encoding(Fd),
{Cpu,NProcs,RQ,Clock} = loadinfo(Info,Prev),
io:nl(Fd),
writedoubleline(Fd),
case Info#etop_info.memi of
undefined ->
io:fwrite(Fd, " ~-72w~10s~n"
" Load: cpu ~8w~n"
" procs~8w~n"
" runq ~8w~n",
[Config#opts.node,Clock,
Cpu,NProcs,RQ]);
Memi ->
[Tot,Procs,Atom,Bin,Code,Ets] =
meminfo(Memi, [total,processes,atom,binary,code,ets]),
io:fwrite(Fd, ?SYSFORM,
[Config#opts.node,Clock,
Cpu,Tot,Bin,
NProcs,Procs,Code,
RQ,Atom,Ets])
end,
io:nl(Fd),
writepinfo_header(Fd),
writesingleline(Fd),
writepinfo(Fd,Info#etop_info.procinfo,Encoding),
writedoubleline(Fd),
io:nl(Fd),
Info.
writepinfo_header(Fd) ->
io:fwrite(Fd,"Pid Name or Initial Func Time Reds Memory MsgQ Current Function~n",[]).
writesingleline(Fd) ->
io:fwrite(Fd,"----------------------------------------------------------------------------------------~n",[]).
writedoubleline(Fd) ->
io:fwrite(Fd,"========================================================================================~n",[]).
writepinfo(Fd,[#etop_proc_info{pid=Pid,
mem=Mem,
reds=Reds,
name=Name,
runtime=Time,
cf=MFA,
mq=MQ}
|T],
Encoding) ->
io:fwrite(Fd,proc_format(Encoding),
[Pid,to_list(Name,Encoding),Time,Reds,Mem,MQ,
formatmfa(MFA,Encoding)]),
writepinfo(Fd,T,Encoding);
writepinfo(_Fd,[],_) ->
ok.
formatmfa({M, F, A},latin1) ->
io_lib:format("~w:~w/~w",[M, F, A]);
formatmfa({M, F, A},_) ->
io_lib:format("~w:~tw/~w",[M, F, A]);
formatmfa(Other,_) ->
%% E.g. when running hipe - the current_function for some
%% processes will be 'undefined'
io_lib:format("~w",[Other]).
to_list(Name,_) when is_atom(Name) -> atom_to_list(Name);
to_list({_M,_F,_A}=MFA,Encoding) -> formatmfa(MFA,Encoding).
encoding(Device) ->
case io:getopts(Device) of
List when is_list(List) ->
proplists:get_value(encoding,List,latin1);
_ ->
latin1
end.
proc_format(latin1) ->
"~-15w~-20s~8w~8w~8w~8w ~-20s~n";
proc_format(_) ->
"~-15w~-20ts~8w~8w~8w~8w ~-20ts~n".
