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-rw-r--r--lib/stdlib/src/filename.erl20
-rw-r--r--lib/stdlib/src/io_lib.erl4
-rw-r--r--lib/stdlib/src/proc_lib.erl38
-rw-r--r--lib/stdlib/src/supervisor.erl25
4 files changed, 59 insertions, 28 deletions
diff --git a/lib/stdlib/src/filename.erl b/lib/stdlib/src/filename.erl
index a6b42cc68c..59d6de5d10 100644
--- a/lib/stdlib/src/filename.erl
+++ b/lib/stdlib/src/filename.erl
@@ -69,7 +69,7 @@ absname(Name) ->
-spec absname(Filename, Dir) -> file:filename() when
Filename :: file:name(),
- Dir :: file:filename().
+ Dir :: file:name().
absname(Name, AbsBase) when is_binary(Name), is_list(AbsBase) ->
absname(Name,filename_string_to_binary(AbsBase));
absname(Name, AbsBase) when is_list(Name), is_binary(AbsBase) ->
@@ -123,7 +123,7 @@ absname_vr([[X, $:]|Name], _, _AbsBase) ->
%% AbsBase must be absolute and Name must be relative.
-spec absname_join(Dir, Filename) -> file:filename() when
- Dir :: file:filename(),
+ Dir :: file:name(),
Filename :: file:name().
absname_join(AbsBase, Name) ->
join(AbsBase, flatten(Name)).
@@ -388,7 +388,7 @@ extension([], Result, _OsType) ->
%% Joins a list of filenames with directory separators.
-spec join(Components) -> file:filename() when
- Components :: [file:filename()].
+ Components :: [file:name()].
join([Name1, Name2|Rest]) ->
join([join(Name1, Name2)|Rest]);
join([Name]) when is_list(Name) ->
@@ -401,8 +401,8 @@ join([Name]) when is_atom(Name) ->
%% Joins two filenames with directory separators.
-spec join(Name1, Name2) -> file:filename() when
- Name1 :: file:filename(),
- Name2 :: file:filename().
+ Name1 :: file:name(),
+ Name2 :: file:name().
join(Name1, Name2) when is_list(Name1), is_list(Name2) ->
OsType = major_os_type(),
case pathtype(Name2) of
@@ -624,7 +624,7 @@ rootname2([Char|Rest], Ext, Result) when is_integer(Char) ->
-spec split(Filename) -> Components when
Filename :: file:name(),
- Components :: [file:filename()].
+ Components :: [file:name()].
split(Name) when is_binary(Name) ->
case os:type() of
{win32, _} -> win32_splitb(Name);
@@ -718,7 +718,7 @@ split([], Comp, Components, OsType) ->
%% name will be normalized as done by join/1.
-spec nativename(Path) -> file:filename() when
- Path :: file:filename().
+ Path :: file:name().
nativename(Name0) ->
Name = join([Name0]), %Normalize.
case os:type() of
@@ -915,10 +915,8 @@ make_abs_path(BasePath, Path) ->
join(BasePath, Path).
major_os_type() ->
- case os:type() of
- {OsT, _} -> OsT;
- OsT -> OsT
- end.
+ {OsT, _} = os:type(),
+ OsT.
%% flatten(List)
%% Flatten a list, also accepting atoms.
diff --git a/lib/stdlib/src/io_lib.erl b/lib/stdlib/src/io_lib.erl
index ab62b72519..513d904c39 100644
--- a/lib/stdlib/src/io_lib.erl
+++ b/lib/stdlib/src/io_lib.erl
@@ -253,10 +253,10 @@ write_ref(Ref) ->
write_binary(B, D) when is_integer(D) ->
[$<,$<,write_binary_body(B, D),$>,$>].
-write_binary_body(_B, 1) ->
- "...";
write_binary_body(<<>>, _D) ->
"";
+write_binary_body(_B, 1) ->
+ "...";
write_binary_body(<<X:8>>, _D) ->
[integer_to_list(X)];
write_binary_body(<<X:8,Rest/bitstring>>, D) ->
diff --git a/lib/stdlib/src/proc_lib.erl b/lib/stdlib/src/proc_lib.erl
index 02bcbb5a60..4bca4c1e6d 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 1996-2012. 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
@@ -184,6 +184,17 @@ 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 +281,8 @@ 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 +293,8 @@ 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 +341,23 @@ 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) ->
diff --git a/lib/stdlib/src/supervisor.erl b/lib/stdlib/src/supervisor.erl
index 7d3c5a0e21..9f93747c3e 100644
--- a/lib/stdlib/src/supervisor.erl
+++ b/lib/stdlib/src/supervisor.erl
@@ -104,7 +104,9 @@
%%% SupName = {local, atom()} | {global, atom()}.
%%% ---------------------------------------------------
--type startlink_err() :: {'already_started', pid()} | 'shutdown' | term().
+-type startlink_err() :: {'already_started', pid()}
+ | {'shutdown', term()}
+ | term().
-type startlink_ret() :: {'ok', pid()} | 'ignore' | {'error', startlink_err()}.
-spec start_link(Module, Args) -> startlink_ret() when
@@ -221,8 +223,10 @@ cast(Supervisor, Req) ->
-type init_sup_name() :: sup_name() | 'self'.
--type stop_rsn() :: 'shutdown' | {'bad_return', {module(),'init', term()}}
- | {'bad_start_spec', term()} | {'start_spec', term()}
+-type stop_rsn() :: {'shutdown', term()}
+ | {'bad_return', {module(),'init', term()}}
+ | {'bad_start_spec', term()}
+ | {'start_spec', term()}
| {'supervisor_data', term()}.
-spec init({init_sup_name(), module(), [term()]}) ->
@@ -253,9 +257,9 @@ init_children(State, StartSpec) ->
case start_children(Children, SupName) of
{ok, NChildren} ->
{ok, State#state{children = NChildren}};
- {error, NChildren} ->
+ {error, NChildren, Reason} ->
terminate_children(NChildren, SupName),
- {stop, shutdown}
+ {stop, {shutdown, Reason}}
end;
Error ->
{stop, {start_spec, Error}}
@@ -275,9 +279,9 @@ init_dynamic(_State, StartSpec) ->
%% Func: start_children/2
%% Args: Children = [child_rec()] in start order
%% SupName = {local, atom()} | {global, atom()} | {pid(), Mod}
-%% Purpose: Start all children. The new list contains #child's
+%% Purpose: Start all children. The new list contains #child's
%% with pids.
-%% Returns: {ok, NChildren} | {error, NChildren}
+%% Returns: {ok, NChildren} | {error, NChildren, Reason}
%% NChildren = [child_rec()] in termination order (reversed
%% start order)
%%-----------------------------------------------------------------
@@ -293,7 +297,8 @@ start_children([Child|Chs], NChildren, SupName) ->
start_children(Chs, [Child#child{pid = Pid}|NChildren], SupName);
{error, Reason} ->
report_error(start_error, Reason, Child, SupName),
- {error, lists:reverse(Chs) ++ [Child | NChildren]}
+ {error, lists:reverse(Chs) ++ [Child | NChildren],
+ {failed_to_start_child,Child#child.name,Reason}}
end;
start_children([], NChildren, _SupName) ->
{ok, NChildren}.
@@ -793,7 +798,7 @@ restart(rest_for_one, Child, State) ->
case start_children(ChAfter2, State#state.name) of
{ok, ChAfter3} ->
{ok, State#state{children = ChAfter3 ++ ChBefore}};
- {error, ChAfter3} ->
+ {error, ChAfter3, _Reason} ->
NChild = Child#child{pid=restarting(Child#child.pid)},
NState = State#state{children = ChAfter3 ++ ChBefore},
{try_again, replace_child(NChild,NState)}
@@ -804,7 +809,7 @@ restart(one_for_all, Child, State) ->
case start_children(Children2, State#state.name) of
{ok, NChs} ->
{ok, State#state{children = NChs}};
- {error, NChs} ->
+ {error, NChs, _Reason} ->
NChild = Child#child{pid=restarting(Child#child.pid)},
NState = State#state{children = NChs},
{try_again, replace_child(NChild,NState)}
generated by cgit v1.2.3 (git 2.25.1) at 2025-05-02 01:20:08 +0000