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authorPiotr Dorobisz <[email protected]>2011-03-09 13:49:49 +0100
committerHenrik Nord <[email protected]>2011-08-30 15:22:18 +0200
commit7fdb75eb25454ed5e72b580f2c40ec12d1ace050 (patch)
tree0978a518bb3b9ceb6281b054606994b1a4fed789 /lib/observer
parentcb2d32fdd68656ed05636456816e51d9654fbbff (diff)
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Optional handler specification allowed in stop/1 - Allowed optional handler specification in trace/2
Diffstat (limited to 'lib/observer')
-rw-r--r--lib/observer/src/ttb.erl335
1 files changed, 114 insertions, 221 deletions
diff --git a/lib/observer/src/ttb.erl b/lib/observer/src/ttb.erl
index 24ee94e2d2..d5f4b52b42 100644
--- a/lib/observer/src/ttb.erl
+++ b/lib/observer/src/ttb.erl
@@ -21,6 +21,7 @@
%% API
-export([tracer/0,tracer/1,tracer/2,p/2,stop/0,stop/1,start_trace/4]).
+-export([get_et_handler/0]).
-export([tp/2, tp/3, tp/4, ctp/0, ctp/1, ctp/2, ctp/3, tpl/2, tpl/3, tpl/4,
ctpl/0, ctpl/1, ctpl/2, ctpl/3, ctpg/0, ctpg/1, ctpg/2, ctpg/3]).
-export([seq_trigger_ms/0,seq_trigger_ms/1]).
@@ -34,12 +35,10 @@
-include_lib("kernel/include/file.hrl").
-define(meta_time,5000).
--define(fetch_time, 10000).
-define(history_table,ttb_history_table).
-define(seq_trace_flags,[send,'receive',print,timestamp]).
-define(upload_dir,"ttb_upload").
-define(last_config, "ttb_last_config").
--define(partial_dir, "ttb_partial_result").
-ifdef(debug).
-define(get_status,;get_status -> erlang:display(dict:to_list(NodeInfo),loop(NodeInfo, TraceInfo)).
-else.
@@ -53,10 +52,11 @@ start_trace(Nodes, Patterns, {Procs, Flags}, Options) ->
{ok, _} = p(Procs, Flags),
[{ok, _} = apply(?MODULE, tpl, tuple_to_list(Args)) || Args <- Patterns].
+
+
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% Open a trace port on all given nodes and create the meta data file
tracer() -> tracer(node()).
-tracer(shell) -> tracer(node(), shell);
tracer(Nodes) -> tracer(Nodes,[]).
tracer(Nodes,Opt) ->
{PI,Client,Traci} = opt(Opt),
@@ -71,7 +71,6 @@ do_tracer(Nodes0,PI,Client,Traci) ->
do_tracer(Clients,PI,Traci).
do_tracer(Clients,PI,Traci) ->
- ShellOutput = proplists:get_value(shell, Traci, false),
{ClientSucc,Succ} =
lists:foldl(
fun({N,{local,File},TF},{CS,S}) ->
@@ -82,7 +81,7 @@ do_tracer(Clients,PI,Traci) ->
{ok,T} = dbg:get_tracer(N),
rpc:call(N,seq_trace,set_system_tracer,[T]),
dbg:trace_client(ip,{Host,Port},
- {fun ip_to_file/2,{{file,File}, ShellOutput}}),
+ {fun ip_to_file/2,{file,File}}),
{[{N,{local,File,Port},TF}|CS], [N|S]};
Other ->
display_warning(N,{cannot_open_ip_trace_port,
@@ -126,29 +125,8 @@ opt([{timer, {MSec, StopOpts}}|O],{PI,Client,Traci}) ->
opt(O,{PI,Client,[{timer,{MSec, StopOpts}}|Traci]});
opt([{timer, MSec}|O],{PI,Client,Traci}) ->
opt(O,{PI,Client,[{timer,{MSec, []}}|Traci]});
-opt([shell|O],{PI,Client,Traci}) ->
- opt(O,{PI,Client,[{shell, true}|Traci]});
-opt([resume|O],{PI,Client,Traci}) ->
- opt(O,{PI,Client,[{resume, {true, ?fetch_time}}|Traci]});
-opt([{resume,MSec}|O],{PI,Client,Traci}) ->
- opt(O,{PI,Client,[{resume, {true, MSec}}|Traci]});
-opt([{flush,MSec}|O],{PI,Client,Traci}) ->
- opt(O,{PI,Client,[{flush, MSec}|Traci]});
opt([],Opt) ->
- ensure_opt(Opt).
-
-ensure_opt({PI,Client,Traci}) ->
- case {proplists:get_value(flush, Traci), Client} of
- {undefined, _} -> ok;
- {_, {local, _}} -> exit(flush_unsupported_with_ip_trace_port);
- {_,_} -> ok
- end,
- case {proplists:get_value(shell, Traci), Client} of
- {undefined, _} -> {PI, Client, Traci};
- {true, ?MODULE} -> {PI, {local, ?MODULE}, Traci};
- {true, {local, File}} -> {PI, {local, File}, Traci};
- {true, _} -> exit(local_client_required_on_shell_tracing)
- end.
+ Opt.
nods(all) ->
Nodes1 = remove_active([node()|nodes()]),
@@ -245,29 +223,17 @@ run_history([H|T]) ->
ok -> run_history(T);
{error,not_found} -> {error,{not_found,H}}
end;
-
-run_history(all) ->
- CurrentHist = ets:tab2list(?history_table),
- ets:delete_all_objects(?history_table),
- [run_printed(MFA,true) || {_, MFA} <- CurrentHist];
-run_history(all_silent) ->
- CurrentHist = ets:tab2list(?history_table),
- ets:delete_all_objects(?history_table),
- [run_printed(MFA,false) || {_, MFA} <- CurrentHist];
run_history([]) ->
ok;
run_history(N) ->
case catch ets:lookup(?history_table,N) of
[{N,{M,F,A}}] ->
- run_printed({M,F,A},true);
+ print_func(M,F,A),
+ R = apply(M,F,A),
+ print_result(R);
_ ->
{error, not_found}
end.
-
-run_printed({M,F,A},Verbose) ->
- Verbose andalso print_func(M,F,A),
- R = apply(M,F,A),
- Verbose andalso print_result(R).
write_config(ConfigFile,all) ->
write_config(ConfigFile,['_']);
@@ -392,7 +358,7 @@ no_store_p(Procs0,Flags0) ->
transform_flags([clear]) ->
[clear];
transform_flags(Flags) ->
- dbg:transform_flags(Flags).
+ dbg:transform_flags([timestamp | Flags]).
procs(Procs) when is_list(Procs) ->
@@ -563,16 +529,21 @@ stop(Opts) ->
stop_opts(Opts) ->
FetchDir = proplists:get_value(fetch_dir, Opts),
ensure_fetch_dir(FetchDir),
- case {lists:member(format,Opts), lists:member(return, Opts)} of
- {true, _} ->
- {format, FetchDir}; % format implies fetch
- {_, true} ->
+ FormatData = case proplists:get_value(format, Opts) of
+ undefined -> false;
+ true -> {format, []};
+ FOpts -> {format, FOpts}
+ end,
+ case {FormatData, lists:member(return, Opts)} of
+ {false, true} ->
{fetch, FetchDir}; % if we specify return, the data should be fetched
- _ ->
+ {false, false} ->
case lists:member(fetch,Opts) of
true -> {fetch, FetchDir};
false -> nofetch
- end
+ end;
+ {FormatData, _} ->
+ {FormatData, FetchDir}
end.
ensure_fetch_dir(undefined) -> ok;
@@ -612,9 +583,7 @@ init(Parent, SessionInfo) ->
register(?MODULE,self()),
ets:new(?history_table,[ordered_set,named_table,public]),
Parent ! {started,self()},
- NewSessionInfo = [{partials, 0}, {dead_nodes, []} | SessionInfo],
- try_send_flush_tick(NewSessionInfo),
- loop(dict:new(), NewSessionInfo).
+ loop(dict:new(), SessionInfo).
loop(NodeInfo, SessionInfo) ->
receive
@@ -644,13 +613,7 @@ loop(NodeInfo, SessionInfo) ->
NodeInfo),
loop(NodeInfo, SessionInfo);
{nodedown,Node} ->
- NewState = make_node_dead(Node, NodeInfo, SessionInfo),
- loop(dict:erase(Node,NodeInfo), NewState);
- {noderesumed,Node,Reporter} ->
- {MetaFile, CurrentSuffix, NewState} = make_node_alive(Node, SessionInfo),
- fetch_partial_result(Node, MetaFile, CurrentSuffix),
- spawn(fun() -> resume_trace(Reporter) end),
- loop(NodeInfo, NewState);
+ loop(dict:erase(Node,NodeInfo), SessionInfo);
{timeout, StopOpts} ->
spawn(?MODULE, stop, [StopOpts]),
loop(NodeInfo, SessionInfo);
@@ -660,10 +623,6 @@ loop(NodeInfo, SessionInfo) ->
{MSec, StopOpts} -> erlang:send_after(MSec, self(), {timeout, StopOpts})
end,
loop(NodeInfo, SessionInfo);
- flush_timeout ->
- [ dbg:flush_trace_port(Node) || Node <- dict:fetch_keys(NodeInfo) ],
- try_send_flush_tick(SessionInfo),
- loop(NodeInfo, SessionInfo);
{stop,nofetch,Sender} ->
write_config(?last_config, all),
dict:fold(
@@ -680,7 +639,7 @@ loop(NodeInfo, SessionInfo) ->
Localhost = host(node()),
Dir = get_fetch_dir(UserDir),
file:make_dir(Dir),
- %% The nodes are traversed twice here because
+ %% The nodes are traversed twice here because
%% the meta tracing in observer_backend must be
%% stopped before dbg is stopped, and dbg must
%% be stopped before the trace logs are moved orelse
@@ -694,53 +653,28 @@ loop(NodeInfo, SessionInfo) ->
[],
NodeInfo),
dbg:stop_clear(),
- AllNodes =
+ AllNodes =
lists:map(
fun({Node,MetaFile}) ->
- spawn(fun() -> fetch_report(Localhost,Dir,Node,MetaFile) end),
+ spawn(fun() -> fetch(Localhost,Dir,Node,MetaFile) end),
Node
end,
AllNodesAndMeta),
ets:delete(?history_table),
wait_for_fetch(AllNodes),
- copy_partials(Dir, proplists:get_value(partials, SessionInfo)),
Absname = filename:absname(Dir),
io:format("Stored logs in ~s~n",[Absname]),
case FetchOrFormat of
- format -> format(Dir);
- fetch -> ok
+ fetch -> ok;
+ {format, Opts} -> format(Dir, Opts)
end,
Sender ! {?MODULE,{stopped,Absname}}
?get_status
end.
-make_node_dead(Node, NodeInfo, SessionInfo) ->
- {MetaFile,_} = dict:fetch(Node, NodeInfo),
- NewDeadNodes = [{Node, MetaFile} | proplists:get_value(dead_nodes, SessionInfo)],
- [{dead_nodes, NewDeadNodes} | lists:keydelete(dead_nodes, 1, SessionInfo)].
-
-make_node_alive(Node, SessionInfo) ->
- DeadNodes = proplists:get_value(dead_nodes, SessionInfo),
- Partials = proplists:get_value(partials, SessionInfo),
- {value, {_, MetaFile}, Dn2} = lists:keytake(Node, 1, DeadNodes),
- SessionInfo2 = lists:keyreplace(dead_nodes, 1, SessionInfo, {dead_nodes, Dn2}),
- {MetaFile, Partials + 1, lists:keyreplace(partials, 1, SessionInfo2, {partials, Partials + 1})}.
-
-try_send_flush_tick(State) ->
- case proplists:get_value(flush, State) of
- undefined ->
- ok;
- MSec ->
- erlang:send_after(MSec, self(), flush_timeout)
- end.
-
get_fetch_dir(undefined) -> ?upload_dir ++ ts();
get_fetch_dir(Dir) -> Dir.
-resume_trace(Reporter) ->
- ?MODULE:run_history(all_silent),
- Reporter ! trace_resumed.
-
get_nodes() ->
?MODULE ! {get_nodes,self()},
receive {?MODULE,Nodes} -> Nodes end.
@@ -750,46 +684,17 @@ ts() ->
io_lib:format("-~4.4.0w~2.2.0w~2.2.0w-~2.2.0w~2.2.0w~2.2.0w",
[Y,M,D,H,Min,S]).
-copy_partials(_, 0) ->
- ok;
-copy_partials(Dir, Num) ->
- PartialDir = ?partial_dir ++ integer_to_list(Num),
- file:rename(PartialDir, filename:join(Dir,PartialDir)),
- copy_partials(Dir, Num - 1).
-
-fetch_partial_result(Node,MetaFile,Current) ->
- DirName = ?partial_dir ++ integer_to_list(Current),
- case file:list_dir(DirName) of
- {error, enoent} ->
- ok;
- {ok, Files} ->
- [ file:delete(filename:join(DirName, File)) || File <- Files ],
- file:del_dir(DirName)
- end,
- file:make_dir(DirName),
- fetch(host(node()), DirName, Node, MetaFile).
-
-fetch_report(Localhost, Dir, Node, MetaFile) ->
- fetch(Localhost,Dir,Node,MetaFile),
- ?MODULE ! {fetch_complete,Node}.
-
fetch(Localhost,Dir,Node,MetaFile) ->
case (host(Node) == Localhost) orelse is_local(MetaFile) of
true -> % same host, just move the files
Files = get_filenames(Node,MetaFile),
lists:foreach(
fun(File0) ->
- case MetaFile of
- {local, _, _} ->
- File = filename:join(Dir,filename:basename(File0)),
- file:rename(File0, File);
- _ ->
- %%Other nodes may still have different CWD
- {ok, Cwd} = rpc:call(Node, file, get_cwd, []),
- File1 = filename:join(Cwd, File0),
- File = filename:join(Dir,filename:basename(File1)),
- file:rename(File1,File)
- end
+ %%Other nodes may still have different CWD
+ {ok, Cwd} = rpc:call(Node, file, get_cwd, []),
+ File1 = filename:join(Cwd, File0),
+ File = filename:join(Dir,filename:basename(File1)),
+ file:rename(File1,File)
end,
Files);
false ->
@@ -801,7 +706,8 @@ fetch(Localhost,Dir,Node,MetaFile) ->
receive_files(Dir,Sock,undefined),
ok = gen_tcp:close(LSock),
ok = gen_tcp:close(Sock)
- end.
+ end,
+ ?MODULE ! {fetch_complete,Node}.
is_local({local, _, _}) ->
true;
@@ -831,6 +737,7 @@ host(Node) ->
[_name,Host] = string:tokens(atom_to_list(Node),"@"),
Host.
+
wait_for_fetch([]) ->
ok;
wait_for_fetch(Nodes) ->
@@ -868,31 +775,42 @@ write_info(Nodes,PI,Traci) ->
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% Format binary trace logs
+get_et_handler() ->
+ {fun ttb_et:handler/4, initial}.
+
format(Files) ->
format(Files,[]).
format(Files,Opt) ->
- {Out,Handler} = format_opt(Opt),
+ {Out,Handler,DisableSort} = format_opt(Opt),
ets:new(?MODULE,[named_table]),
- format(Files,Out,Handler).
-format(File,Out,Handler) when is_list(File), is_integer(hd(File)) ->
+ format(Files,Out,Handler, DisableSort).
+format(File,Out,Handler,DisableSort) when is_list(File), is_integer(hd(File)) ->
Files =
case filelib:is_dir(File) of
true -> % will merge all files in the directory
- List = filelib:wildcard(filename:join(File, ?partial_dir++"*")),
- lists:append(collect_files([File | List]));
+ MetaFiles = filelib:wildcard(filename:join(File,"*.ti")),
+ lists:map(fun(M) ->
+ Sub = string:left(M,length(M)-3),
+ case filelib:is_file(Sub) of
+ true -> Sub;
+ false -> Sub++".*.wrp"
+ end
+ end,
+ MetaFiles);
false -> % format one file
[File]
end,
- format(Files,Out,Handler);
-format(Files,Out,Handler) when is_list(Files), is_list(hd(Files)) ->
+ RealHandler = get_handler(Handler, Files),
+ format(Files,Out,RealHandler,DisableSort);
+format(Files,Out,Handler,DisableSort) when is_list(Files), is_list(hd(Files)) ->
StopDbg = case whereis(dbg) of
undefined -> true;
_ -> false
end,
- Details = lists:foldl(fun(File,Acc) -> [prepare(File,Handler)|Acc] end,
+ Details = lists:foldl(fun(File,Acc) -> [prepare(File)|Acc] end,
[],Files),
Fd = get_fd(Out),
- R = do_format(Fd,Details),
+ R = do_format(Fd,Details,DisableSort,Handler),
file:close(Fd),
ets:delete(?MODULE),
case StopDbg of
@@ -901,20 +819,17 @@ format(Files,Out,Handler) when is_list(Files), is_list(hd(Files)) ->
end,
R.
-collect_files(Dirs) ->
- lists:map(fun(Dir) ->
- MetaFiles = filelib:wildcard(filename:join(Dir,"*.ti")),
- lists:map(fun(M) ->
- Sub = string:left(M,length(M)-3),
- case filelib:is_file(Sub) of
- true -> Sub;
- false -> Sub++".*.wrp"
- end
- end,
- MetaFiles)
- end, Dirs).
-
-prepare(File,Handler) ->
+get_handler(undefined, Files) ->
+ %%We retrieve traci from the first available file
+ {Traci, _} = read_traci(hd(Files)),
+ case dict:find(handler, Traci) of
+ error -> {fun defaulthandler/4, initial};
+ {ok, [Handler]} -> Handler
+ end;
+get_handler(Handler, _) ->
+ Handler.
+
+prepare(File) ->
{Traci,Proci} = read_traci(File),
Node = get_node(Traci),
lists:foreach(fun({Pid,PI}) ->
@@ -926,8 +841,7 @@ prepare(File,Handler) ->
ets:insert(?MODULE,{Pid,PI,Node})
end,Proci),
FileOrWrap = get_file(File,Traci),
- Handler1 = get_handler(Handler,Traci),
- {FileOrWrap,Traci,Handler1}.
+ {FileOrWrap,Traci}.
format_opt(Opt) when is_list(Opt) ->
Out = case lists:keysearch(out,1,Opt) of
@@ -935,13 +849,15 @@ format_opt(Opt) when is_list(Opt) ->
_ -> standard_io
end,
Handler = case lists:keysearch(handler,1,Opt) of
- {value,{handler,H}} -> H;
- _ -> undefined
+ {value,{handler,H}} -> H;
+ _ -> undefined
end,
- {Out,Handler};
+ DisableSort = proplists:get_value(disable_sort, Opt, false),
+ {Out,Handler,DisableSort};
format_opt(Opt) ->
format_opt([Opt]).
+
read_traci(File) ->
MetaFile = get_metafile(File),
case file:read_file(MetaFile) of
@@ -1017,70 +933,56 @@ check_exists(File) ->
exit({error,no_file})
end.
-get_handler(Handler,Traci) ->
- case Handler of
- undefined ->
- case dict:find(handler,Traci) of
- {ok,[H]} -> H;
- error -> undefined
- end;
- _ ->
- Handler
- end.
-
-do_format(Fd,Details) ->
- Clients = lists:foldl(fun({FileOrWrap,Traci,Handler},Acc) ->
- [start_client(FileOrWrap,Traci,Handler)
- |Acc]
+do_format(Fd,Details,DisableSort,Handler) ->
+ Clients = lists:foldl(fun({FileOrWrap,Traci},Acc) ->
+ [start_client(FileOrWrap,Traci)|Acc]
end,[],Details),
- init_collector(Fd,Clients).
-
+ init_collector(Fd,Clients,DisableSort,Handler).
-start_client(FileOrWrap,Traci,et) ->
- dbg:trace_client(file, FileOrWrap,
- {fun handler/2,
- {dict:to_list(Traci),{{ttb_et,handler},initial}}});
-start_client(FileOrWrap,Traci,undefined) ->
- dbg:trace_client(file, FileOrWrap,
- {fun handler/2,
- {dict:to_list(Traci),{fun defaulthandler/4,initial}}});
-start_client(FileOrWrap,Traci,Handler) ->
+start_client(FileOrWrap,Traci) ->
dbg:trace_client(file, FileOrWrap,
- {fun handler/2, {dict:to_list(Traci),Handler}}).
+ {fun handler/2, dict:to_list(Traci)}).
-handler(Trace,State) ->
- %% State here is only used for the initial state. The accumulated
- %% State is maintained by collector!!!
+handler(Trace,Traci) ->
+ %%We return our own Traci so that it not necesarry to look it up
+ %%This may take time if something huge has been written to it
receive
- {get,Collector} -> Collector ! {self(),{Trace,State}};
+ {get,Collector} -> Collector ! {self(),{Trace,Traci}};
done -> ok
end,
- State.
+ Traci.
-handler1(Trace,{Fd,{Traci,{Fun,State}}}) when is_function(Fun) ->
- {Traci,{Fun,Fun(Fd,Trace,Traci,State)}};
-handler1(Trace,{Fd,{Traci,{{M,F},State}}}) when is_atom(M), is_atom(F) ->
- {Traci,{{M,F},M:F(Fd,Trace,Traci,State)}}.
+%%Used to handle common state (the same for all clients)
+handler2(Trace,{Fd,Traci,{Fun,State}}) when is_function(Fun) ->
+ {Fun, Fun(Fd, Trace, Traci, State)};
+handler2(Trace,{Fd,Traci,{{M,F},State}}) when is_atom(M), is_atom(F) ->
+ {{M,F}, M:F(Fd, Trace, Traci, State)}.
defaulthandler(Fd,Trace,_Traci,initial) ->
dbg:dhandler(Trace,Fd);
defaulthandler(_Fd,Trace,_Traci,State) ->
dbg:dhandler(Trace,State).
-init_collector(Fd,Clients) ->
+init_collector(Fd,Clients,DisableSort,Handler) ->
Collected = get_first(Clients),
- collector(Fd,sort(Collected)).
+ case DisableSort of
+ true -> collector(Fd,Collected, DisableSort, Handler);
+ false -> collector(Fd,sort(Collected), DisableSort, Handler)
+ end.
-collector(Fd,[{_,{Client,{Trace,State}}} |Rest]) ->
+collector(Fd,[{_,{Client,{Trace,Traci}}} |Rest], DisableSort, CommonState) ->
Trace1 = update_procinfo(Trace),
- State1 = handler1(Trace1,{Fd,State}),
- case get_next(Client,State1) of
+ CommonState2 = handler2(Trace1, {Fd, Traci, CommonState}),
+ case get_next(Client) of
end_of_trace ->
- handler1(end_of_trace,{Fd,State1}),
- collector(Fd,Rest);
- Next -> collector(Fd,sort([Next|Rest]))
+ collector(Fd,Rest,DisableSort, CommonState2);
+ Next -> case DisableSort of
+ false -> collector(Fd,sort([Next|Rest]), DisableSort, CommonState2);
+ true -> collector(Fd,[Next|Rest], DisableSort, CommonState2)
+ end
end;
-collector(_Fd,[]) ->
+collector(Fd,[], _, CommonState) ->
+ handler2(end_of_trace, {Fd, end_of_trace, CommonState}),
ok.
update_procinfo({drop,_N}=Trace) ->
@@ -1128,23 +1030,24 @@ get_first([Client|Clients]) ->
receive
{Client,{end_of_trace,_}} ->
get_first(Clients);
- {Client,{Trace,_State}}=Next ->
+ {Client,{Trace,_}}=Next ->
[{timestamp(Trace),Next}|get_first(Clients)]
end;
get_first([]) -> [].
-get_next(Client,State) when is_pid(Client) ->
+get_next(Client) when is_pid(Client) ->
Client ! {get,self()},
receive
{Client,{end_of_trace,_}} ->
end_of_trace;
- {Client,{Trace,_OldState}} ->
- {timestamp(Trace),{Client,{Trace,State}}} % inserting new state!!
+ {Client,{Trace, Traci}} ->
+ {timestamp(Trace),{Client,{Trace,Traci}}}
end.
sort(List) ->
lists:keysort(1,List).
+
timestamp(Trace) when element(1,Trace) =:= trace_ts;
element(1,Trace) =:= seq_trace, tuple_size(Trace) =:= 4 ->
element(tuple_size(Trace),Trace);
@@ -1182,29 +1085,19 @@ display_warning(Item,Warning) ->
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% Trace client which reads an IP port and puts data directly to a file.
%%% This is used when tracing remote nodes with no file system.
-ip_to_file(Trace,{{file,File}, ShellOutput}) ->
+ip_to_file(Trace,{file,File}) ->
Fun = dbg:trace_port(file,File), %File can be a filename or a wrap spec
Port = Fun(),
- case Trace of
- {metadata, _, _} -> ok;
- Trace -> show_trace(Trace, ShellOutput)
- end,
- ip_to_file(Trace,{Port,ShellOutput});
-ip_to_file({metadata,MetaFile,MetaData},State) ->
+ ip_to_file(Trace,Port);
+ip_to_file({metadata,MetaFile,MetaData},Port) ->
{ok,MetaFd} = file:open(MetaFile,[write,raw,append]),
file:write(MetaFd,MetaData),
file:close(MetaFd),
- State;
-ip_to_file(Trace,{Port, ShellOutput}) ->
- show_trace(Trace, ShellOutput),
+ Port;
+ip_to_file(Trace,Port) ->
B = term_to_binary(Trace),
erlang:port_command(Port,B),
- {Port, ShellOutput}.
-
-show_trace(Trace, true) ->
- dbg:dhandler(Trace, standard_io);
-show_trace(_,_) ->
- ok.
+ Port.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% For debugging