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-rw-r--r--lib/stdlib/src/proc_lib.erl100
1 files changed, 70 insertions, 30 deletions
diff --git a/lib/stdlib/src/proc_lib.erl b/lib/stdlib/src/proc_lib.erl
index 02bcbb5a60..1eb6fc2e86 100644
--- a/lib/stdlib/src/proc_lib.erl
+++ b/lib/stdlib/src/proc_lib.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1996-2011. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2013. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -29,7 +29,8 @@
start/3, start/4, start/5, start_link/3, start_link/4, start_link/5,
hibernate/3,
init_ack/1, init_ack/2,
- init_p/3,init_p/5,format/1,initial_call/1,translate_initial_call/1]).
+ init_p/3,init_p/5,format/1,format/2,initial_call/1,
+ translate_initial_call/1]).
%% Internal exports.
-export([wake_up/3]).
@@ -184,6 +185,17 @@ check_for_monitor(SpawnOpts) ->
false
end.
+spawn_mon(M,F,A) ->
+ Parent = get_my_name(),
+ Ancestors = get_ancestors(),
+ erlang:spawn_monitor(?MODULE, init_p, [Parent,Ancestors,M,F,A]).
+
+spawn_opt_mon(M, F, A, Opts) when is_atom(M), is_atom(F), is_list(A) ->
+ Parent = get_my_name(),
+ Ancestors = get_ancestors(),
+ check_for_monitor(Opts),
+ erlang:spawn_opt(?MODULE, init_p, [Parent,Ancestors,M,F,A], [monitor|Opts]).
+
-spec hibernate(Module, Function, Args) -> no_return() when
Module :: module(),
Function :: atom(),
@@ -270,8 +282,8 @@ start(M, F, A) when is_atom(M), is_atom(F), is_list(A) ->
Ret :: term() | {error, Reason :: term()}.
start(M, F, A, Timeout) when is_atom(M), is_atom(F), is_list(A) ->
- Pid = ?MODULE:spawn(M, F, A),
- sync_wait(Pid, Timeout).
+ PidRef = spawn_mon(M, F, A),
+ sync_wait_mon(PidRef, Timeout).
-spec start(Module, Function, Args, Time, SpawnOpts) -> Ret when
Module :: module(),
@@ -282,8 +294,8 @@ start(M, F, A, Timeout) when is_atom(M), is_atom(F), is_list(A) ->
Ret :: term() | {error, Reason :: term()}.
start(M, F, A, Timeout, SpawnOpts) when is_atom(M), is_atom(F), is_list(A) ->
- Pid = ?MODULE:spawn_opt(M, F, A, SpawnOpts),
- sync_wait(Pid, Timeout).
+ PidRef = spawn_opt_mon(M, F, A, SpawnOpts),
+ sync_wait_mon(PidRef, Timeout).
-spec start_link(Module, Function, Args) -> Ret when
Module :: module(),
@@ -330,6 +342,23 @@ sync_wait(Pid, Timeout) ->
{error, timeout}
end.
+sync_wait_mon({Pid, Ref}, Timeout) ->
+ receive
+ {ack, Pid, Return} ->
+ erlang:demonitor(Ref, [flush]),
+ Return;
+ {'DOWN', Ref, _Type, Pid, Reason} ->
+ {error, Reason};
+ {'EXIT', Pid, Reason} -> %% link as spawn_opt?
+ erlang:demonitor(Ref, [flush]),
+ {error, Reason}
+ after Timeout ->
+ erlang:demonitor(Ref, [flush]),
+ exit(Pid, kill),
+ flush(Pid),
+ {error, timeout}
+ end.
+
-spec flush(pid()) -> 'true'.
flush(Pid) ->
@@ -664,34 +693,41 @@ check(Res) -> Res.
-spec format(CrashReport) -> string() when
CrashReport :: [term()].
-
-format([OwnReport,LinkReport]) ->
- OwnFormat = format_report(OwnReport),
- LinkFormat = format_report(LinkReport),
- S = io_lib:format(" crasher:~n~s neighbours:~n~s",[OwnFormat,LinkFormat]),
- lists:flatten(S).
-
-format_report(Rep) when is_list(Rep) ->
- format_rep(Rep);
-format_report(Rep) ->
- io_lib:format("~p~n", [Rep]).
-
-format_rep([{initial_call,InitialCall}|Rep]) ->
- [format_mfa(InitialCall)|format_rep(Rep)];
-format_rep([{error_info,{Class,Reason,StackTrace}}|Rep]) ->
- [format_exception(Class, Reason, StackTrace)|format_rep(Rep)];
-format_rep([{Tag,Data}|Rep]) ->
- [format_tag(Tag, Data)|format_rep(Rep)];
-format_rep(_) ->
+format(CrashReport) ->
+ format(CrashReport, latin1).
+
+-spec format(CrashReport, Encoding) -> string() when
+ CrashReport :: [term()],
+ Encoding :: latin1 | unicode | utf8.
+
+format([OwnReport,LinkReport], Encoding) ->
+ OwnFormat = format_report(OwnReport, Encoding),
+ LinkFormat = format_report(LinkReport, Encoding),
+ Str = io_lib:format(" crasher:~n~ts neighbours:~n~ts",
+ [OwnFormat, LinkFormat]),
+ lists:flatten(Str).
+
+format_report(Rep, Enc) when is_list(Rep) ->
+ format_rep(Rep,Enc);
+format_report(Rep, Enc) ->
+ io_lib:format("~"++modifier(Enc)++"p~n", [Rep]).
+
+format_rep([{initial_call,InitialCall}|Rep], Enc) ->
+ [format_mfa(InitialCall)|format_rep(Rep, Enc)];
+format_rep([{error_info,{Class,Reason,StackTrace}}|Rep], Enc) ->
+ [format_exception(Class, Reason, StackTrace, Enc)|format_rep(Rep, Enc)];
+format_rep([{Tag,Data}|Rep], Enc) ->
+ [format_tag(Tag, Data)|format_rep(Rep, Enc)];
+format_rep(_, _Enc) ->
[].
-format_exception(Class, Reason, StackTrace) ->
- PF = pp_fun(),
+format_exception(Class, Reason, StackTrace, Enc) ->
+ PF = pp_fun(Enc),
StackFun = fun(M, _F, _A) -> (M =:= erl_eval) or (M =:= ?MODULE) end,
%% EI = " exception: ",
EI = " ",
[EI, lib:format_exception(1+length(EI), Class, Reason,
- StackTrace, StackFun, PF), "\n"].
+ StackTrace, StackFun, PF, Enc), "\n"].
format_mfa({M,F,Args}=StartF) ->
try
@@ -703,10 +739,14 @@ format_mfa({M,F,Args}=StartF) ->
format_tag(initial_call, StartF)
end.
-pp_fun() ->
+pp_fun(Enc) ->
+ P = modifier(Enc) ++ "p",
fun(Term, I) ->
- io_lib:format("~." ++ integer_to_list(I) ++ "p", [Term])
+ io_lib:format("~." ++ integer_to_list(I) ++ P, [Term])
end.
format_tag(Tag, Data) ->
io_lib:format(" ~p: ~80.18p~n", [Tag, Data]).
+
+modifier(latin1) -> "";
+modifier(_) -> "t".