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-rw-r--r--lib/stdlib/src/edlin_expand.erl95
-rw-r--r--lib/stdlib/src/erl_eval.erl1
-rw-r--r--lib/stdlib/src/erl_parse.yrl11
-rw-r--r--lib/stdlib/src/escript.erl83
-rw-r--r--lib/stdlib/src/filename.erl36
-rw-r--r--lib/stdlib/src/gen_event.erl2
-rw-r--r--lib/stdlib/src/gen_statem.erl867
-rw-r--r--lib/stdlib/src/io_lib_pretty.erl131
-rw-r--r--lib/stdlib/src/qlc.erl6
-rw-r--r--lib/stdlib/src/zip.erl62
10 files changed, 765 insertions, 529 deletions
diff --git a/lib/stdlib/src/edlin_expand.erl b/lib/stdlib/src/edlin_expand.erl
index 5f821caef0..a1a97af4c5 100644
--- a/lib/stdlib/src/edlin_expand.erl
+++ b/lib/stdlib/src/edlin_expand.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2005-2016. All Rights Reserved.
+%% Copyright Ericsson AB 2005-2017. 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.
@@ -101,44 +101,77 @@ match(Prefix, Alts, Extra0) ->
%% Return the list of names L in multiple columns.
format_matches(L) ->
- S = format_col(lists:sort(L), []),
+ {S1, Dots} = format_col(lists:sort(L), []),
+ S = case Dots of
+ true ->
+ {_, Prefix} = longest_common_head(vals(L)),
+ PrefixLen = length(Prefix),
+ case PrefixLen =< 3 of
+ true -> S1; % Do not replace the prefix with "...".
+ false ->
+ LeadingDotsL = leading_dots(L, PrefixLen),
+ {S2, _} = format_col(lists:sort(LeadingDotsL), []),
+ S2
+ end;
+ false -> S1
+ end,
["\n" | S].
format_col([], _) -> [];
-format_col(L, Acc) -> format_col(L, field_width(L), 0, Acc).
-
-format_col(X, Width, Len, Acc) when Width + Len > 79 ->
- format_col(X, Width, 0, ["\n" | Acc]);
-format_col([A|T], Width, Len, Acc0) ->
- H = case A of
- %% If it's a tuple {string(), integer()}, we assume it's an
- %% arity, and meant to be printed.
- {H0, I} when is_integer(I) ->
- H0 ++ "/" ++ integer_to_list(I);
- {H1, _} -> H1;
- H2 -> H2
- end,
- Acc = [io_lib:format("~-*ts", [Width,H]) | Acc0],
- format_col(T, Width, Len+Width, Acc);
-format_col([], _, _, Acc) ->
- lists:reverse(Acc, "\n").
-
-field_width(L) -> field_width(L, 0).
-
-field_width([{H,_}|T], W) ->
+format_col(L, Acc) ->
+ LL = 79,
+ format_col(L, field_width(L, LL), 0, Acc, LL, false).
+
+format_col(X, Width, Len, Acc, LL, Dots) when Width + Len > LL ->
+ format_col(X, Width, 0, ["\n" | Acc], LL, Dots);
+format_col([A|T], Width, Len, Acc0, LL, Dots) ->
+ {H0, R} = format_val(A),
+ Hmax = LL - length(R),
+ {H, NewDots} =
+ case length(H0) > Hmax of
+ true -> {io_lib:format("~-*ts", [Hmax - 3, H0]) ++ "...", true};
+ false -> {H0, Dots}
+ end,
+ Acc = [io_lib:format("~-*ts", [Width, H ++ R]) | Acc0],
+ format_col(T, Width, Len+Width, Acc, LL, NewDots);
+format_col([], _, _, Acc, _LL, Dots) ->
+ {lists:reverse(Acc, "\n"), Dots}.
+
+format_val({H, I}) when is_integer(I) ->
+ %% If it's a tuple {string(), integer()}, we assume it's an
+ %% arity, and meant to be printed.
+ {H, "/" ++ integer_to_list(I)};
+format_val({H, _}) ->
+ {H, ""};
+format_val(H) ->
+ {H, ""}.
+
+field_width(L, LL) -> field_width(L, 0, LL).
+
+field_width([{H,_}|T], W, LL) ->
case length(H) of
- L when L > W -> field_width(T, L);
- _ -> field_width(T, W)
+ L when L > W -> field_width(T, L, LL);
+ _ -> field_width(T, W, LL)
end;
-field_width([H|T], W) ->
+field_width([H|T], W, LL) ->
case length(H) of
- L when L > W -> field_width(T, L);
- _ -> field_width(T, W)
+ L when L > W -> field_width(T, L, LL);
+ _ -> field_width(T, W, LL)
end;
-field_width([], W) when W < 40 ->
+field_width([], W, LL) when W < LL - 3 ->
W + 4;
-field_width([], _) ->
- 40.
+field_width([], _, LL) ->
+ LL.
+
+vals([]) -> [];
+vals([{S, _}|L]) -> [S|vals(L)];
+vals([S|L]) -> [S|vals(L)].
+
+leading_dots([], _Len) -> [];
+leading_dots([{H, I}|L], Len) ->
+ [{"..." ++ nthtail(Len, H), I}|leading_dots(L, Len)];
+leading_dots([H|L], Len) ->
+ ["..." ++ nthtail(Len, H)|leading_dots(L, Len)].
longest_common_head([]) ->
no;
diff --git a/lib/stdlib/src/erl_eval.erl b/lib/stdlib/src/erl_eval.erl
index 40a34aa30f..eafee346eb 100644
--- a/lib/stdlib/src/erl_eval.erl
+++ b/lib/stdlib/src/erl_eval.erl
@@ -1306,6 +1306,7 @@ partial_eval(Expr) ->
ev_expr({op,_,Op,L,R}) -> erlang:Op(ev_expr(L), ev_expr(R));
ev_expr({op,_,Op,A}) -> erlang:Op(ev_expr(A));
ev_expr({integer,_,X}) -> X;
+ev_expr({char,_,X}) -> X;
ev_expr({float,_,X}) -> X;
ev_expr({atom,_,X}) -> X;
ev_expr({tuple,_,Es}) ->
diff --git a/lib/stdlib/src/erl_parse.yrl b/lib/stdlib/src/erl_parse.yrl
index 4f38256e6b..d2dd2848b5 100644
--- a/lib/stdlib/src/erl_parse.yrl
+++ b/lib/stdlib/src/erl_parse.yrl
@@ -2,7 +2,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1996-2016. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2017. 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.
@@ -156,6 +156,7 @@ type -> '#' atom '{' field_types '}' : {type, ?anno('$1'),
record, ['$2'|'$4']}.
type -> binary_type : '$1'.
type -> integer : '$1'.
+type -> char : '$1'.
type -> 'fun' '(' ')' : {type, ?anno('$1'), 'fun', []}.
type -> 'fun' '(' fun_type_100 ')' : '$3'.
@@ -1557,13 +1558,17 @@ new_anno(Term) ->
Abstr :: erl_parse_tree().
anno_to_term(Abstract) ->
- map_anno(fun erl_anno:to_term/1, Abstract).
+ F = fun(Anno, Acc) -> {erl_anno:to_term(Anno), Acc} end,
+ {NewAbstract, []} = modify_anno1(Abstract, [], F),
+ NewAbstract.
-spec anno_from_term(Term) -> erl_parse_tree() when
Term :: term().
anno_from_term(Term) ->
- map_anno(fun erl_anno:from_term/1, Term).
+ F = fun(T, Acc) -> {erl_anno:from_term(T), Acc} end,
+ {NewTerm, []} = modify_anno1(Term, [], F),
+ NewTerm.
%% Forms.
%% Recognize what sys_pre_expand does:
diff --git a/lib/stdlib/src/escript.erl b/lib/stdlib/src/escript.erl
index 7f5ef4df42..c42ae981e7 100644
--- a/lib/stdlib/src/escript.erl
+++ b/lib/stdlib/src/escript.erl
@@ -481,46 +481,49 @@ find_first_body_line(Fd, HeaderSz0, LineNo, KeepFirst, Sections) ->
%% Look for special comment on second line
Line2 = get_line(Fd),
{ok, HeaderSz2} = file:position(Fd, cur),
- case classify_line(Line2) of
- emu_args ->
- %% Skip special comment on second line
- Line3 = get_line(Fd),
- {HeaderSz2, LineNo + 2, Fd,
- Sections#sections{type = guess_type(Line3),
- comment = undefined,
- emu_args = Line2}};
- Line2Type ->
- %% Look for special comment on third line
- Line3 = get_line(Fd),
- {ok, HeaderSz3} = file:position(Fd, cur),
- Line3Type = classify_line(Line3),
- if
- Line3Type =:= emu_args ->
- %% Skip special comment on third line
- Line4 = get_line(Fd),
- {HeaderSz3, LineNo + 3, Fd,
- Sections#sections{type = guess_type(Line4),
- comment = Line2,
- emu_args = Line3}};
- Sections#sections.shebang =:= undefined,
- KeepFirst =:= true ->
- %% No shebang. Use the entire file
- {HeaderSz0, LineNo, Fd,
- Sections#sections{type = guess_type(Line2)}};
- Sections#sections.shebang =:= undefined ->
- %% No shebang. Skip the first line
- {HeaderSz1, LineNo, Fd,
- Sections#sections{type = guess_type(Line2)}};
- Line2Type =:= comment ->
- %% Skip shebang on first line and comment on second
- {HeaderSz2, LineNo + 2, Fd,
- Sections#sections{type = guess_type(Line3),
- comment = Line2}};
- true ->
- %% Just skip shebang on first line
- {HeaderSz1, LineNo + 1, Fd,
- Sections#sections{type = guess_type(Line2)}}
- end
+ if
+ Sections#sections.shebang =:= undefined,
+ KeepFirst =:= true ->
+ %% No shebang. Use the entire file
+ {HeaderSz0, LineNo, Fd,
+ Sections#sections{type = guess_type(Line2)}};
+ Sections#sections.shebang =:= undefined ->
+ %% No shebang. Skip the first line
+ {HeaderSz1, LineNo, Fd,
+ Sections#sections{type = guess_type(Line2)}};
+ true ->
+ case classify_line(Line2) of
+ emu_args ->
+ %% Skip special comment on second line
+ Line3 = get_line(Fd),
+ {HeaderSz2, LineNo + 2, Fd,
+ Sections#sections{type = guess_type(Line3),
+ comment = undefined,
+ emu_args = Line2}};
+ comment ->
+ %% Look for special comment on third line
+ Line3 = get_line(Fd),
+ {ok, HeaderSz3} = file:position(Fd, cur),
+ Line3Type = classify_line(Line3),
+ if
+ Line3Type =:= emu_args ->
+ %% Skip special comment on third line
+ Line4 = get_line(Fd),
+ {HeaderSz3, LineNo + 3, Fd,
+ Sections#sections{type = guess_type(Line4),
+ comment = Line2,
+ emu_args = Line3}};
+ true ->
+ %% Skip shebang on first line and comment on second
+ {HeaderSz2, LineNo + 2, Fd,
+ Sections#sections{type = guess_type(Line3),
+ comment = Line2}}
+ end;
+ _ ->
+ %% Just skip shebang on first line
+ {HeaderSz1, LineNo + 1, Fd,
+ Sections#sections{type = guess_type(Line2)}}
+ end
end.
classify_line(Line) ->
diff --git a/lib/stdlib/src/filename.erl b/lib/stdlib/src/filename.erl
index c4586171ca..5d60b3837e 100644
--- a/lib/stdlib/src/filename.erl
+++ b/lib/stdlib/src/filename.erl
@@ -34,7 +34,8 @@
-export([absname/1, absname/2, absname_join/2,
basename/1, basename/2, dirname/1,
extension/1, join/1, join/2, pathtype/1,
- rootname/1, rootname/2, split/1, nativename/1]).
+ rootname/1, rootname/2, split/1, nativename/1,
+ safe_relative_path/1]).
-export([find_src/1, find_src/2, flatten/1]).
-export([basedir/2, basedir/3]).
@@ -750,6 +751,39 @@ separators() ->
_ -> {false, false}
end.
+-spec safe_relative_path(Filename) -> 'unsafe' | SafeFilename when
+ Filename :: file:name_all(),
+ SafeFilename :: file:name_all().
+
+safe_relative_path(Path) ->
+ case pathtype(Path) of
+ relative ->
+ Cs0 = split(Path),
+ safe_relative_path_1(Cs0, []);
+ _ ->
+ unsafe
+ end.
+
+safe_relative_path_1(["."|T], Acc) ->
+ safe_relative_path_1(T, Acc);
+safe_relative_path_1([<<".">>|T], Acc) ->
+ safe_relative_path_1(T, Acc);
+safe_relative_path_1([".."|T], Acc) ->
+ climb(T, Acc);
+safe_relative_path_1([<<"..">>|T], Acc) ->
+ climb(T, Acc);
+safe_relative_path_1([H|T], Acc) ->
+ safe_relative_path_1(T, [H|Acc]);
+safe_relative_path_1([], []) ->
+ [];
+safe_relative_path_1([], Acc) ->
+ join(lists:reverse(Acc)).
+
+climb(_, []) ->
+ unsafe;
+climb(T, [_|Acc]) ->
+ safe_relative_path_1(T, Acc).
+
%% find_src(Module) --
diff --git a/lib/stdlib/src/gen_event.erl b/lib/stdlib/src/gen_event.erl
index ccacf658e9..e55cdddb9a 100644
--- a/lib/stdlib/src/gen_event.erl
+++ b/lib/stdlib/src/gen_event.erl
@@ -742,7 +742,7 @@ stop_handlers([], _) ->
[].
%% Message from the release_handler.
-%% The list of modules got to be a set !
+%% The list of modules got to be a set, i.e. no duplicate elements!
get_modules(MSL) ->
Mods = [Handler#handler.module || Handler <- MSL],
ordsets:to_list(ordsets:from_list(Mods)).
diff --git a/lib/stdlib/src/gen_statem.erl b/lib/stdlib/src/gen_statem.erl
index 018aca90e6..cacc932ec4 100644
--- a/lib/stdlib/src/gen_statem.erl
+++ b/lib/stdlib/src/gen_statem.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2016. All Rights Reserved.
+%% Copyright Ericsson AB 2016-2017. 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.
@@ -47,15 +47,17 @@
%% Type exports for templates and callback modules
-export_type(
[event_type/0,
- init_result/0,
callback_mode_result/0,
- state_function_result/0,
- handle_event_result/0,
+ init_result/1,
state_enter_result/1,
event_handler_result/1,
reply_action/0,
enter_action/0,
action/0]).
+%% Old types, not advertised
+-export_type(
+ [state_function_result/0,
+ handle_event_result/0]).
%% Type that is exported just to be documented
-export_type([transition_option/0]).
@@ -143,9 +145,10 @@
{'reply', % Reply to a caller
From :: from(), Reply :: term()}.
--type init_result() ::
- {ok, state(), data()} |
- {ok, state(), data(), [action()] | action()} |
+-type init_result(StateType) ::
+ {ok, State :: StateType, Data :: data()} |
+ {ok, State :: StateType, Data :: data(),
+ Actions :: [action()] | action()} |
'ignore' |
{'stop', Reason :: term()}.
@@ -182,12 +185,23 @@
'keep_state_and_data' | % {keep_state_and_data,[]}
{'keep_state_and_data', % Keep state and data -> only actions
Actions :: [ActionType] | ActionType} |
+ %%
+ {'repeat_state', % {repeat_state,NewData,[]}
+ NewData :: data()} |
+ {'repeat_state', % Repeat state, change data
+ NewData :: data(),
+ Actions :: [ActionType] | ActionType} |
+ 'repeat_state_and_data' | % {repeat_state_and_data,[]}
+ {'repeat_state_and_data', % Repeat state and data -> only actions
+ Actions :: [ActionType] | ActionType} |
+ %%
'stop' | % {stop,normal}
{'stop', % Stop the server
Reason :: term()} |
{'stop', % Stop the server
Reason :: term(),
NewData :: data()} |
+ %%
{'stop_and_reply', % Reply then stop the server
Reason :: term(),
Replies :: [reply_action()] | reply_action()} |
@@ -201,7 +215,7 @@
%% the server is not running until this function has returned
%% an {ok, ...} tuple. Thereafter the state callbacks are called
%% for all events to this server.
--callback init(Args :: term()) -> init_result().
+-callback init(Args :: term()) -> init_result(state()).
%% This callback shall return the callback mode of the callback module.
%%
@@ -275,6 +289,8 @@
-optional_callbacks(
[init/1, % One may use enter_loop/5,6,7 instead
format_status/2, % Has got a default implementation
+ terminate/3, % Has got a default implementation
+ code_change/4, % Only needed by advanced soft upgrade
%%
state_name/3, % Example for callback_mode() =:= state_functions:
%% there has to be a StateName/3 callback function
@@ -304,12 +320,16 @@ event_type({call,From}) ->
from(From);
event_type(Type) ->
case Type of
+ {call,From} ->
+ from(From);
cast ->
true;
info ->
true;
timeout ->
true;
+ state_timeout ->
+ true;
internal ->
true;
_ ->
@@ -588,6 +608,22 @@ enter(Module, Opts, State, Data, Server, Actions, Parent) ->
true ->
[Actions,{postpone,false}]
end,
+ TimerRefs = #{},
+ %% Key: timer ref
+ %% Value: the timer type i.e the timer's event type
+ %%
+ TimerTypes = #{},
+ %% Key: timer type i.e the timer's event type
+ %% Value: timer ref
+ %%
+ %% We add a timer to both timer_refs and timer_types
+ %% when we start it. When we request an asynchronous
+ %% timer cancel we remove it from timer_types. When
+ %% the timer cancel message arrives we remove it from
+ %% timer_refs.
+ %%
+ Hibernate = false,
+ CancelTimers = 0,
S = #{
callback_mode => undefined,
state_enter => false,
@@ -596,25 +632,25 @@ enter(Module, Opts, State, Data, Server, Actions, Parent) ->
state => State,
data => Data,
postponed => P,
- %% The rest of the fields are set from to the arguments to
- %% loop_event_actions/10 when it finally loops back to loop/3
- %% in loop_events/10
%%
- %% Marker for initial state, cleared immediately when used
- init_state => true
+ %% The following fields are finally set from to the arguments to
+ %% loop_event_actions/9 when it finally loops back to loop/3
+ %% in loop_event_result/11
+ timer_refs => TimerRefs,
+ timer_types => TimerTypes,
+ hibernate => Hibernate,
+ cancel_timers => CancelTimers
},
NewDebug = sys_debug(Debug, S, State, {enter,Event,State}),
case call_callback_mode(S) of
{ok,NewS} ->
- TimerRefs = #{},
- TimerTypes = #{},
loop_event_actions(
- Parent, NewDebug, NewS, TimerRefs, TimerTypes,
- Events, Event, State, Data, NewActions);
+ Parent, NewDebug, NewS,
+ Events, Event, State, Data, NewActions, true);
{Class,Reason,Stacktrace} ->
terminate(
- Class, Reason, Stacktrace,
- NewDebug, S, [Event|Events])
+ Class, Reason, Stacktrace, NewDebug,
+ S, [Event|Events])
end.
%%%==========================================================================
@@ -683,9 +719,7 @@ system_continue(Parent, Debug, S) ->
loop(Parent, Debug, S).
system_terminate(Reason, _Parent, Debug, S) ->
- terminate(
- exit, Reason, ?STACKTRACE(),
- Debug, S, []).
+ terminate(exit, Reason, ?STACKTRACE(), Debug, S, []).
system_code_change(
#{module := Module,
@@ -796,23 +830,22 @@ wakeup_from_hibernate(Parent, Debug, S) ->
%% and detours through sys:handle_system_message/7 and proc_lib:hibernate/3
%% Entry point for system_continue/3
-loop(Parent, Debug, #{hibernate := Hibernate} = S) ->
- case Hibernate of
- true ->
- %% Does not return but restarts process at
- %% wakeup_from_hibernate/3 that jumps to loop_receive/3
- proc_lib:hibernate(
- ?MODULE, wakeup_from_hibernate, [Parent,Debug,S]),
- error(
- {should_not_have_arrived_here_but_instead_in,
- {wakeup_from_hibernate,3}});
- false ->
- loop_receive(Parent, Debug, S)
- end.
+loop(Parent, Debug, #{hibernate := true, cancel_timers := 0} = S) ->
+ loop_hibernate(Parent, Debug, S);
+loop(Parent, Debug, S) ->
+ loop_receive(Parent, Debug, S).
+
+loop_hibernate(Parent, Debug, S) ->
+ %% Does not return but restarts process at
+ %% wakeup_from_hibernate/3 that jumps to loop_receive/3
+ proc_lib:hibernate(
+ ?MODULE, wakeup_from_hibernate, [Parent,Debug,S]),
+ error(
+ {should_not_have_arrived_here_but_instead_in,
+ {wakeup_from_hibernate,3}}).
%% Entry point for wakeup_from_hibernate/3
-loop_receive(
- Parent, Debug, #{timer_refs := TimerRefs, timer_types := TimerTypes} = S) ->
+loop_receive(Parent, Debug, S) ->
receive
Msg ->
case Msg of
@@ -821,30 +854,87 @@ loop_receive(
%% Does not return but tail recursively calls
%% system_continue/3 that jumps to loop/3
sys:handle_system_msg(
- Req, Pid, Parent, ?MODULE, Debug, S, Hibernate);
+ Req, Pid, Parent, ?MODULE, Debug, S,
+ Hibernate);
{'EXIT',Parent,Reason} = EXIT ->
- %% EXIT is not a 2-tuple and therefore
- %% not an event and has no event_type(),
- %% but this will stand out in the crash report...
- terminate(
- exit, Reason, ?STACKTRACE(), Debug, S, [EXIT]);
+ %% EXIT is not a 2-tuple therefore
+ %% not an event but this will stand out
+ %% in the crash report...
+ Q = [EXIT],
+ terminate(exit, Reason, ?STACKTRACE(), Debug, S, Q);
{timeout,TimerRef,TimerMsg} ->
+ #{timer_refs := TimerRefs,
+ timer_types := TimerTypes,
+ hibernate := Hibernate} = S,
case TimerRefs of
#{TimerRef := TimerType} ->
- Event = {TimerType,TimerMsg},
- %% Unregister the triggered timeout
+ %% We know of this timer; is it a running
+ %% timer or a timer being cancelled that
+ %% managed to send a late timeout message?
+ case TimerTypes of
+ #{TimerType := TimerRef} ->
+ %% The timer type maps back to this
+ %% timer ref, so it was a running timer
+ Event = {TimerType,TimerMsg},
+ %% Unregister the triggered timeout
+ NewTimerRefs =
+ maps:remove(TimerRef, TimerRefs),
+ NewTimerTypes =
+ maps:remove(TimerType, TimerTypes),
+ loop_receive_result(
+ Parent, Debug,
+ S#{
+ timer_refs := NewTimerRefs,
+ timer_types := NewTimerTypes},
+ Hibernate,
+ Event);
+ _ ->
+ %% This was a late timeout message
+ %% from timer being cancelled, so
+ %% ignore it and expect a cancel_timer
+ %% msg shortly
+ loop_receive(Parent, Debug, S)
+ end;
+ _ ->
+ %% Not our timer; present it as an event
+ Event = {info,Msg},
loop_receive_result(
- Parent, Debug, S,
- maps:remove(TimerRef, TimerRefs),
- maps:remove(TimerType, TimerTypes),
- Event);
+ Parent, Debug, S, Hibernate, Event)
+ end;
+ {cancel_timer,TimerRef,_} ->
+ #{timer_refs := TimerRefs,
+ cancel_timers := CancelTimers,
+ hibernate := Hibernate} = S,
+ case TimerRefs of
+ #{TimerRef := _} ->
+ %% We must have requested a cancel
+ %% of this timer so it is already
+ %% removed from TimerTypes
+ NewTimerRefs =
+ maps:remove(TimerRef, TimerRefs),
+ NewCancelTimers = CancelTimers - 1,
+ NewS =
+ S#{
+ timer_refs := NewTimerRefs,
+ cancel_timers := NewCancelTimers},
+ if
+ Hibernate =:= true, NewCancelTimers =:= 0 ->
+ %% No more cancel_timer msgs to expect;
+ %% we can hibernate
+ loop_hibernate(Parent, Debug, NewS);
+ NewCancelTimers >= 0 -> % Assert
+ loop_receive(Parent, Debug, NewS)
+ end;
_ ->
+ %% Not our cancel_timer msg;
+ %% present it as an event
Event = {info,Msg},
loop_receive_result(
- Parent, Debug, S,
- TimerRefs, TimerTypes, Event)
+ Parent, Debug, S, Hibernate, Event)
end;
_ ->
+ %% External msg
+ #{hibernate := Hibernate} = S,
Event =
case Msg of
{'$gen_call',From,Request} ->
@@ -855,208 +945,212 @@ loop_receive(
{info,Msg}
end,
loop_receive_result(
- Parent, Debug, S,
- TimerRefs, TimerTypes, Event)
+ Parent, Debug, S, Hibernate, Event)
end
end.
loop_receive_result(
- Parent, Debug, #{state := State} = S,
- TimerRefs, TimerTypes, Event) ->
- %% The fields 'timer_refs', 'timer_types' and 'hibernate'
- %% are now invalid in state map S - they will be recalculated
- %% and restored when we return to loop/3
- %%
+ Parent, Debug,
+ #{state := State,
+ timer_types := TimerTypes, cancel_timers := CancelTimers} = S,
+ Hibernate, Event) ->
+ %% From now the 'hibernate' field in S is invalid
+ %% and will be restored when looping back
+ %% in loop_event_result/11
NewDebug = sys_debug(Debug, S, State, {in,Event}),
- %% Here the queue of not yet handled events is created
+ %% Here is the queue of not yet handled events created
Events = [],
- Hibernate = false,
- loop_event(
- Parent, NewDebug, S, TimerRefs, TimerTypes, Events, Event, Hibernate).
+ %% Cancel any running event timer
+ case
+ cancel_timer_by_type(timeout, TimerTypes, CancelTimers)
+ of
+ {_,CancelTimers} ->
+ %% No timer cancelled
+ loop_event(Parent, NewDebug, S, Events, Event, Hibernate);
+ {NewTimerTypes,NewCancelTimers} ->
+ %% The timer is removed from NewTimerTypes but
+ %% remains in TimerRefs until we get
+ %% the cancel_timer msg
+ NewS =
+ S#{
+ timer_types := NewTimerTypes,
+ cancel_timers := NewCancelTimers},
+ loop_event(Parent, NewDebug, NewS, Events, Event, Hibernate)
+ end.
%% Entry point for handling an event, received or enqueued
loop_event(
- Parent, Debug, #{state := State, data := Data} = S, TimerRefs, TimerTypes,
+ Parent, Debug,
+ #{state := State, data := Data} = S,
Events, {Type,Content} = Event, Hibernate) ->
%%
- %% If Hibernate is true here it can only be
+ %% If (this old) Hibernate is true here it can only be
%% because it was set from an event action
- %% and we did not go into hibernation since there
- %% were events in queue, so we do what the user
+ %% and we did not go into hibernation since there were
+ %% events in queue, so we do what the user
%% might rely on i.e collect garbage which
%% would have happened if we actually hibernated
%% and immediately was awakened
Hibernate andalso garbage_collect(),
case call_state_function(S, Type, Content, State, Data) of
{ok,Result,NewS} ->
- %% Cancel event timeout
- {NewTimerRefs,NewTimerTypes} =
- cancel_timer_by_type(
- timeout, TimerRefs, TimerTypes),
- {NewData,NextState,Actions} =
+ {NextState,NewData,Actions,EnterCall} =
parse_event_result(
- true, Debug, NewS, Result,
- Events, Event, State, Data),
+ true, Debug, NewS,
+ Events, Event, State, Data, Result),
loop_event_actions(
- Parent, Debug, S, NewTimerRefs, NewTimerTypes,
- Events, Event, NextState, NewData, Actions);
+ Parent, Debug, NewS,
+ Events, Event, NextState, NewData, Actions, EnterCall);
{Class,Reason,Stacktrace} ->
terminate(
- Class, Reason, Stacktrace, Debug, S, [Event|Events])
+ Class, Reason, Stacktrace, Debug, S,
+ [Event|Events])
end.
loop_event_actions(
Parent, Debug,
- #{state := State, state_enter := StateEnter} = S, TimerRefs, TimerTypes,
- Events, Event, NextState, NewData, Actions) ->
+ #{state := State, state_enter := StateEnter} = S,
+ Events, Event, NextState, NewData,
+ Actions, EnterCall) ->
+ %% Hibernate is reborn here as false being
+ %% the default value from parse_actions/4
case parse_actions(Debug, S, State, Actions) of
{ok,NewDebug,Hibernate,TimeoutsR,Postpone,NextEventsR} ->
if
- StateEnter, NextState =/= State ->
+ StateEnter, EnterCall ->
loop_event_enter(
- Parent, NewDebug, S, TimerRefs, TimerTypes,
+ Parent, NewDebug, S,
Events, Event, NextState, NewData,
Hibernate, TimeoutsR, Postpone, NextEventsR);
- StateEnter ->
- case maps:is_key(init_state, S) of
- true ->
- %% Avoid infinite loop in initial state
- %% with state entry events
- NewS = maps:remove(init_state, S),
- loop_event_enter(
- Parent, NewDebug, NewS, TimerRefs, TimerTypes,
- Events, Event, NextState, NewData,
- Hibernate, TimeoutsR, Postpone, NextEventsR);
- false ->
- loop_event_result(
- Parent, NewDebug, S, TimerRefs, TimerTypes,
- Events, Event, NextState, NewData,
- Hibernate, TimeoutsR, Postpone, NextEventsR)
- end;
true ->
loop_event_result(
- Parent, NewDebug, S, TimerRefs, TimerTypes,
+ Parent, NewDebug, S,
Events, Event, NextState, NewData,
Hibernate, TimeoutsR, Postpone, NextEventsR)
end;
{Class,Reason,Stacktrace} ->
terminate(
- Class, Reason, Stacktrace,
- Debug, S#{data := NewData}, [Event|Events])
+ Class, Reason, Stacktrace, Debug, S,
+ [Event|Events])
end.
loop_event_enter(
- Parent, Debug, #{state := State} = S, TimerRefs, TimerTypes,
+ Parent, Debug, #{state := State} = S,
Events, Event, NextState, NewData,
Hibernate, TimeoutsR, Postpone, NextEventsR) ->
case call_state_function(S, enter, State, NextState, NewData) of
{ok,Result,NewS} ->
- {NewerData,_,Actions} =
- parse_event_result(
- false, Debug, NewS, Result,
- Events, Event, NextState, NewData),
- loop_event_enter_actions(
- Parent, Debug, NewS, TimerRefs, TimerTypes,
- Events, Event, NextState, NewerData,
- Hibernate, TimeoutsR, Postpone, NextEventsR, Actions);
+ case parse_event_result(
+ false, Debug, NewS,
+ Events, Event, NextState, NewData, Result) of
+ {_,NewerData,Actions,EnterCall} ->
+ loop_event_enter_actions(
+ Parent, Debug, NewS,
+ Events, Event, NextState, NewerData,
+ Hibernate, TimeoutsR, Postpone, NextEventsR,
+ Actions, EnterCall)
+ end;
{Class,Reason,Stacktrace} ->
terminate(
- Class, Reason, Stacktrace,
- Debug, S#{state := NextState, data := NewData},
+ Class, Reason, Stacktrace, Debug,
+ S#{
+ state := NextState,
+ data := NewData,
+ hibernate := Hibernate},
[Event|Events])
end.
loop_event_enter_actions(
- Parent, Debug, S, TimerRefs, TimerTypes,
+ Parent, Debug, #{state_enter := StateEnter} = S,
Events, Event, NextState, NewData,
- Hibernate, TimeoutsR, Postpone, NextEventsR, Actions) ->
+ Hibernate, TimeoutsR, Postpone, NextEventsR,
+ Actions, EnterCall) ->
case
parse_enter_actions(
- Debug, S, NextState, Actions,
- Hibernate, TimeoutsR)
+ Debug, S, NextState, Actions, Hibernate, TimeoutsR)
of
{ok,NewDebug,NewHibernate,NewTimeoutsR,_,_} ->
- loop_event_result(
- Parent, NewDebug, S, TimerRefs, TimerTypes,
- Events, Event, NextState, NewData,
- NewHibernate, NewTimeoutsR, Postpone, NextEventsR);
+ if
+ StateEnter, EnterCall ->
+ loop_event_enter(
+ Parent, NewDebug, S,
+ Events, Event, NextState, NewData,
+ NewHibernate, NewTimeoutsR, Postpone, NextEventsR);
+ true ->
+ loop_event_result(
+ Parent, NewDebug, S,
+ Events, Event, NextState, NewData,
+ NewHibernate, NewTimeoutsR, Postpone, NextEventsR)
+ end;
{Class,Reason,Stacktrace} ->
terminate(
- Class, Reason, Stacktrace,
- Debug, S#{state := NextState, data := NewData},
+ Class, Reason, Stacktrace, Debug,
+ S#{
+ state := NextState,
+ data := NewData,
+ hibernate := Hibernate},
[Event|Events])
end.
loop_event_result(
- Parent, Debug,
- #{state := State, postponed := P_0} = S, TimerRefs_0, TimerTypes_0,
- Events, Event, NextState, NewData,
+ Parent, Debug_0,
+ #{state := State, postponed := P_0,
+ timer_refs := TimerRefs_0, timer_types := TimerTypes_0,
+ cancel_timers := CancelTimers_0} = S_0,
+ Events_0, Event_0, NextState, NewData,
Hibernate, TimeoutsR, Postpone, NextEventsR) ->
%%
%% All options have been collected and next_events are buffered.
%% Do the actual state transition.
%%
- {NewDebug,P_1} = % Move current event to postponed if Postpone
+ {Debug_1,P_1} = % Move current event to postponed if Postpone
case Postpone of
true ->
- {sys_debug(Debug, S, State, {postpone,Event,State}),
- [Event|P_0]};
+ {sys_debug(Debug_0, S_0, State, {postpone,Event_0,State}),
+ [Event_0|P_0]};
false ->
- {sys_debug(Debug, S, State, {consume,Event,State}),
+ {sys_debug(Debug_0, S_0, State, {consume,Event_0,State}),
P_0}
end,
- {Events_1,NewP,{TimerRefs_1,TimerTypes_1}} =
+ {Events_1,P_2,{TimerTypes_1,CancelTimers_1}} =
%% Move all postponed events to queue and cancel the
%% state timeout if the state changes
if
NextState =:= State ->
- {Events,P_1,{TimerRefs_0,TimerTypes_0}};
+ {Events_0,P_1,{TimerTypes_0,CancelTimers_0}};
true ->
- {lists:reverse(P_1, Events),[],
+ {lists:reverse(P_1, Events_0),
+ [],
cancel_timer_by_type(
- state_timeout, TimerRefs_0, TimerTypes_0)}
+ state_timeout, TimerTypes_0, CancelTimers_0)}
+ %% The state timer is removed from TimerTypes_1
+ %% but remains in TimerRefs_0 until we get
+ %% the cancel_timer msg
end,
- {TimerRefs_2,TimerTypes_2,TimeoutEvents} =
- %% Stop and start timers non-event timers
- parse_timers(TimerRefs_1, TimerTypes_1, TimeoutsR),
+ {TimerRefs_2,TimerTypes_2,CancelTimers_2,TimeoutEvents} =
+ %% Stop and start non-event timers
+ parse_timers(TimerRefs_0, TimerTypes_1, CancelTimers_1, TimeoutsR),
%% Place next events last in reversed queue
Events_2R = lists:reverse(Events_1, NextEventsR),
%% Enqueue immediate timeout events and start event timer
- {NewTimerRefs,NewTimerTypes,Events_3R} =
- process_timeout_events(
- TimerRefs_2, TimerTypes_2, TimeoutEvents, Events_2R),
- NewEvents = lists:reverse(Events_3R),
- loop_events(
- Parent, NewDebug, S, NewTimerRefs, NewTimerTypes,
- NewEvents, Hibernate, NextState, NewData, NewP).
-
-%% Loop until out of enqueued events
-%%
-loop_events(
- Parent, Debug, S, TimerRefs, TimerTypes,
- [] = _Events, Hibernate, State, Data, P) ->
- %% Update S and loop back to loop/3 to receive a new event
- NewS =
- S#{
- state := State,
- data := Data,
- postponed := P,
- hibernate => Hibernate,
- timer_refs => TimerRefs,
- timer_types => TimerTypes},
- loop(Parent, Debug, NewS);
-loop_events(
- Parent, Debug, S, TimerRefs, TimerTypes,
- [Event|Events], Hibernate, State, Data, P) ->
- %% Update S and continue with enqueued events
- NewS =
- S#{
- state := State,
- data := Data,
- postponed := P},
- loop_event(
- Parent, Debug, NewS, TimerRefs, TimerTypes, Events, Event, Hibernate).
-
+ Events_3R = prepend_timeout_events(TimeoutEvents, Events_2R),
+ S_1 =
+ S_0#{
+ state := NextState,
+ data := NewData,
+ postponed := P_2,
+ timer_refs := TimerRefs_2,
+ timer_types := TimerTypes_2,
+ cancel_timers := CancelTimers_2,
+ hibernate := Hibernate},
+ case lists:reverse(Events_3R) of
+ [] ->
+ %% Get a new event
+ loop(Parent, Debug_1, S_1);
+ [Event|Events] ->
+ %% Loop until out of enqueued events
+ loop_event(Parent, Debug_1, S_1, Events, Event, Hibernate)
+ end.
%%---------------------------------------------------------------------------
@@ -1069,19 +1163,6 @@ call_callback_mode(#{module := Module} = S) ->
catch
CallbackMode ->
callback_mode_result(S, CallbackMode);
- error:undef ->
- %% Process undef to check for the simple mistake
- %% of calling a nonexistent state function
- %% to make the undef more precise
- case erlang:get_stacktrace() of
- [{Module,callback_mode,[]=Args,_}
- |Stacktrace] ->
- {error,
- {undef_callback,{Module,callback_mode,Args}},
- Stacktrace};
- Stacktrace ->
- {error,undef,Stacktrace}
- end;
Class:Reason ->
{Class,Reason,erlang:get_stacktrace()}
end.
@@ -1126,8 +1207,7 @@ parse_callback_mode(_, _CBMode, StateEnter) ->
call_state_function(
- #{callback_mode := undefined} = S,
- Type, Content, State, Data) ->
+ #{callback_mode := undefined} = S, Type, Content, State, Data) ->
case call_callback_mode(S) of
{ok,NewS} ->
call_state_function(NewS, Type, Content, State, Data);
@@ -1135,13 +1215,12 @@ call_state_function(
Error
end;
call_state_function(
- #{callback_mode := CallbackMode,
- module := Module} = S,
+ #{callback_mode := CallbackMode, module := Module} = S,
Type, Content, State, Data) ->
try
case CallbackMode of
state_functions ->
- erlang:apply(Module, State, [Type,Content,Data]);
+ Module:State(Type, Content, Data);
handle_event_function ->
Module:handle_event(Type, Content, State, Data)
end
@@ -1151,41 +1230,6 @@ call_state_function(
catch
Result ->
{ok,Result,S};
- error:badarg ->
- case erlang:get_stacktrace() of
- [{erlang,apply,
- [Module,State,[Type,Content,Data]=Args],
- _}
- |Stacktrace]
- when CallbackMode =:= state_functions ->
- %% We get here e.g if apply fails
- %% due to State not being an atom
- {error,
- {undef_state_function,{Module,State,Args}},
- Stacktrace};
- Stacktrace ->
- {error,badarg,Stacktrace}
- end;
- error:undef ->
- %% Process undef to check for the simple mistake
- %% of calling a nonexistent state function
- %% to make the undef more precise
- case erlang:get_stacktrace() of
- [{Module,State,[Type,Content,Data]=Args,_}
- |Stacktrace]
- when CallbackMode =:= state_functions ->
- {error,
- {undef_state_function,{Module,State,Args}},
- Stacktrace};
- [{Module,handle_event,[Type,Content,State,Data]=Args,_}
- |Stacktrace]
- when CallbackMode =:= handle_event_function ->
- {error,
- {undef_state_function,{Module,handle_event,Args}},
- Stacktrace};
- Stacktrace ->
- {error,undef,Stacktrace}
- end;
Class:Reason ->
{Class,Reason,erlang:get_stacktrace()}
end.
@@ -1193,65 +1237,83 @@ call_state_function(
%% Interpret all callback return variants
parse_event_result(
- AllowStateChange, Debug, S, Result, Events, Event, State, Data) ->
+ AllowStateChange, Debug, S,
+ Events, Event, State, Data, Result) ->
case Result of
stop ->
terminate(
- exit, normal, ?STACKTRACE(), Debug, S, [Event|Events]);
+ exit, normal, ?STACKTRACE(), Debug,
+ S#{state := State, data := Data},
+ [Event|Events]);
{stop,Reason} ->
terminate(
- exit, Reason, ?STACKTRACE(), Debug, S, [Event|Events]);
+ exit, Reason, ?STACKTRACE(), Debug,
+ S#{state := State, data := Data},
+ [Event|Events]);
{stop,Reason,NewData} ->
terminate(
- exit, Reason, ?STACKTRACE(),
- Debug, S#{data := NewData}, [Event|Events]);
+ exit, Reason, ?STACKTRACE(), Debug,
+ S#{state := State, data := NewData},
+ [Event|Events]);
+ %%
{stop_and_reply,Reason,Replies} ->
- Q = [Event|Events],
reply_then_terminate(
- exit, Reason, ?STACKTRACE(),
- Debug, S, Q, Replies);
+ exit, Reason, ?STACKTRACE(), Debug,
+ S#{state := State, data := Data},
+ [Event|Events], Replies);
{stop_and_reply,Reason,Replies,NewData} ->
- Q = [Event|Events],
reply_then_terminate(
- exit, Reason, ?STACKTRACE(),
- Debug, S#{data := NewData}, Q, Replies);
+ exit, Reason, ?STACKTRACE(), Debug,
+ S#{state := State, data := NewData},
+ [Event|Events], Replies);
+ %%
{next_state,State,NewData} ->
- {NewData,State,[]};
+ {State,NewData,[],false};
{next_state,NextState,NewData} when AllowStateChange ->
- {NewData,NextState,[]};
+ {NextState,NewData,[],true};
{next_state,State,NewData,Actions} ->
- {NewData,State,Actions};
+ {State,NewData,Actions,false};
{next_state,NextState,NewData,Actions} when AllowStateChange ->
- {NewData,NextState,Actions};
+ {NextState,NewData,Actions,true};
+ %%
{keep_state,NewData} ->
- {NewData,State,[]};
+ {State,NewData,[],false};
{keep_state,NewData,Actions} ->
- {NewData,State,Actions};
+ {State,NewData,Actions,false};
keep_state_and_data ->
- {Data,State,[]};
+ {State,Data,[],false};
{keep_state_and_data,Actions} ->
- {Data,State,Actions};
+ {State,Data,Actions,false};
+ %%
+ {repeat_state,NewData} ->
+ {State,NewData,[],true};
+ {repeat_state,NewData,Actions} ->
+ {State,NewData,Actions,true};
+ repeat_state_and_data ->
+ {State,Data,[],true};
+ {repeat_state_and_data,Actions} ->
+ {State,Data,Actions,true};
+ %%
_ ->
terminate(
error,
{bad_return_from_state_function,Result},
- ?STACKTRACE(),
- Debug, S, [Event|Events])
+ ?STACKTRACE(), Debug,
+ S#{state := State, data := Data},
+ [Event|Events])
end.
-parse_enter_actions(
- Debug, S, State, Actions,
- Hibernate, TimeoutsR) ->
+parse_enter_actions(Debug, S, State, Actions, Hibernate, TimeoutsR) ->
Postpone = forbidden,
NextEventsR = forbidden,
parse_actions(
Debug, S, State, listify(Actions),
Hibernate, TimeoutsR, Postpone, NextEventsR).
-
+
parse_actions(Debug, S, State, Actions) ->
Hibernate = false,
- TimeoutsR = [],
+ TimeoutsR = [{timeout,infinity,infinity}], %% Will cancel event timer
Postpone = false,
NextEventsR = [],
parse_actions(
@@ -1279,64 +1341,29 @@ parse_actions(
{bad_action_from_state_function,Action},
?STACKTRACE()}
end;
+ %%
%% Actions that set options
{hibernate,NewHibernate} when is_boolean(NewHibernate) ->
parse_actions(
Debug, S, State, Actions,
NewHibernate, TimeoutsR, Postpone, NextEventsR);
- {hibernate,_} ->
- {error,
- {bad_action_from_state_function,Action},
- ?STACKTRACE()};
hibernate ->
+ NewHibernate = true,
parse_actions(
Debug, S, State, Actions,
- true, TimeoutsR, Postpone, NextEventsR);
- {state_timeout,Time,_} = StateTimeout
- when is_integer(Time), Time >= 0;
- Time =:= infinity ->
- parse_actions(
- Debug, S, State, Actions,
- Hibernate, [StateTimeout|TimeoutsR], Postpone, NextEventsR);
- {state_timeout,_,_} ->
- {error,
- {bad_action_from_state_function,Action},
- ?STACKTRACE()};
- {timeout,infinity,_} ->
- %% Ignore - timeout will never happen and already cancelled
- parse_actions(
- Debug, S, State, Actions,
- Hibernate, TimeoutsR, Postpone, NextEventsR);
- {timeout,Time,_} = Timeout when is_integer(Time), Time >= 0 ->
- parse_actions(
- Debug, S, State, Actions,
- Hibernate, [Timeout|TimeoutsR], Postpone, NextEventsR);
- {timeout,_,_} ->
- {error,
- {bad_action_from_state_function,Action},
- ?STACKTRACE()};
- infinity -> % Ignore - timeout will never happen
- parse_actions(
- Debug, S, State, Actions,
- Hibernate, TimeoutsR, Postpone, NextEventsR);
- Time when is_integer(Time), Time >= 0 ->
- Timeout = {timeout,Time,Time},
- parse_actions(
- Debug, S, State, Actions,
- Hibernate, [Timeout|TimeoutsR], Postpone, NextEventsR);
+ NewHibernate, TimeoutsR, Postpone, NextEventsR);
+ %%
{postpone,NewPostpone}
when is_boolean(NewPostpone), Postpone =/= forbidden ->
parse_actions(
Debug, S, State, Actions,
Hibernate, TimeoutsR, NewPostpone, NextEventsR);
- {postpone,_} ->
- {error,
- {bad_action_from_state_function,Action},
- ?STACKTRACE()};
postpone when Postpone =/= forbidden ->
+ NewPostpone = true,
parse_actions(
Debug, S, State, Actions,
- Hibernate, TimeoutsR, true, NextEventsR);
+ Hibernate, TimeoutsR, NewPostpone, NextEventsR);
+ %%
{next_event,Type,Content} ->
case event_type(Type) of
true when NextEventsR =/= forbidden ->
@@ -1351,96 +1378,150 @@ parse_actions(
{bad_action_from_state_function,Action},
?STACKTRACE()}
end;
- _ ->
+ %%
+ {state_timeout,_,_} = Timeout ->
+ parse_actions_timeout(
+ Debug, S, State, Actions,
+ Hibernate, TimeoutsR, Postpone, NextEventsR, Timeout);
+ {timeout,_,_} = Timeout ->
+ parse_actions_timeout(
+ Debug, S, State, Actions,
+ Hibernate, TimeoutsR, Postpone, NextEventsR, Timeout);
+ Time ->
+ parse_actions_timeout(
+ Debug, S, State, Actions,
+ Hibernate, TimeoutsR, Postpone, NextEventsR, Time)
+ end.
+
+parse_actions_timeout(
+ Debug, S, State, Actions,
+ Hibernate, TimeoutsR, Postpone, NextEventsR, Timeout) ->
+ Time =
+ case Timeout of
+ {_,T,_} -> T;
+ T -> T
+ end,
+ case validate_time(Time) of
+ true ->
+ parse_actions(
+ Debug, S, State, Actions,
+ Hibernate, [Timeout|TimeoutsR],
+ Postpone, NextEventsR);
+ false ->
{error,
- {bad_action_from_state_function,Action},
+ {bad_action_from_state_function,Timeout},
?STACKTRACE()}
end.
+validate_time(Time) when is_integer(Time), Time >= 0 -> true;
+validate_time(infinity) -> true;
+validate_time(_) -> false.
%% Stop and start timers as well as create timeout zero events
%% and pending event timer
%%
%% Stop and start timers non-event timers
-parse_timers(TimerRefs, TimerTypes, TimeoutsR) ->
- parse_timers(TimerRefs, TimerTypes, TimeoutsR, #{}, []).
+parse_timers(TimerRefs, TimerTypes, CancelTimers, TimeoutsR) ->
+ parse_timers(TimerRefs, TimerTypes, CancelTimers, TimeoutsR, #{}, []).
%%
-parse_timers(TimerRefs, TimerTypes, [], _Seen, TimeoutEvents) ->
- {TimerRefs,TimerTypes,TimeoutEvents};
parse_timers(
- TimerRefs, TimerTypes, [Timeout|TimeoutsR], Seen, TimeoutEvents) ->
- {TimerType,Time,TimerMsg} = Timeout,
+ TimerRefs, TimerTypes, CancelTimers, [], _Seen, TimeoutEvents) ->
+ {TimerRefs,TimerTypes,CancelTimers,TimeoutEvents};
+parse_timers(
+ TimerRefs, TimerTypes, CancelTimers, [Timeout|TimeoutsR],
+ Seen, TimeoutEvents) ->
+ case Timeout of
+ {TimerType,Time,TimerMsg} ->
+ parse_timers(
+ TimerRefs, TimerTypes, CancelTimers, TimeoutsR,
+ Seen, TimeoutEvents,
+ TimerType, Time, TimerMsg);
+ Time ->
+ parse_timers(
+ TimerRefs, TimerTypes, CancelTimers, TimeoutsR,
+ Seen, TimeoutEvents,
+ timeout, Time, Time)
+ end.
+
+parse_timers(
+ TimerRefs, TimerTypes, CancelTimers, TimeoutsR,
+ Seen, TimeoutEvents,
+ TimerType, Time, TimerMsg) ->
case Seen of
#{TimerType := _} ->
%% Type seen before - ignore
parse_timers(
- TimerRefs, TimerTypes, TimeoutsR, Seen, TimeoutEvents);
+ TimerRefs, TimerTypes, CancelTimers, TimeoutsR,
+ Seen, TimeoutEvents);
#{} ->
%% Unseen type - handle
NewSeen = Seen#{TimerType => true},
- %% Cancel any running timer
- {NewTimerRefs,NewTimerTypes} =
- cancel_timer_by_type(TimerType, TimerRefs, TimerTypes),
- if
- Time =:= infinity ->
- %% Ignore - timer will never fire
+ case Time of
+ infinity ->
+ %% Cancel any running timer
+ {NewTimerTypes,NewCancelTimers} =
+ cancel_timer_by_type(
+ TimerType, TimerTypes, CancelTimers),
parse_timers(
- NewTimerRefs, NewTimerTypes, TimeoutsR,
+ TimerRefs, NewTimerTypes, NewCancelTimers, TimeoutsR,
NewSeen, TimeoutEvents);
- TimerType =:= timeout ->
- %% Handle event timer later
- parse_timers(
- NewTimerRefs, NewTimerTypes, TimeoutsR,
- NewSeen, [Timeout|TimeoutEvents]);
- Time =:= 0 ->
+ 0 ->
+ %% Cancel any running timer
+ {NewTimerTypes,NewCancelTimers} =
+ cancel_timer_by_type(
+ TimerType, TimerTypes, CancelTimers),
%% Handle zero time timeouts later
TimeoutEvent = {TimerType,TimerMsg},
parse_timers(
- NewTimerRefs, NewTimerTypes, TimeoutsR,
+ TimerRefs, NewTimerTypes, NewCancelTimers, TimeoutsR,
NewSeen, [TimeoutEvent|TimeoutEvents]);
- true ->
- %% Start a new timer
- TimerRef = erlang:start_timer(Time, self(), TimerMsg),
- parse_timers(
- NewTimerRefs#{TimerRef => TimerType},
- NewTimerTypes#{TimerType => TimerRef},
- TimeoutsR, NewSeen, TimeoutEvents)
+ _ ->
+ %% (Re)start the timer
+ TimerRef =
+ erlang:start_timer(Time, self(), TimerMsg),
+ case TimerTypes of
+ #{TimerType := OldTimerRef} ->
+ %% Cancel the running timer
+ cancel_timer(OldTimerRef),
+ NewCancelTimers = CancelTimers + 1,
+ %% Insert the new timer into
+ %% both TimerRefs and TimerTypes
+ parse_timers(
+ TimerRefs#{TimerRef => TimerType},
+ TimerTypes#{TimerType => TimerRef},
+ NewCancelTimers, TimeoutsR,
+ NewSeen, TimeoutEvents);
+ #{} ->
+ parse_timers(
+ TimerRefs#{TimerRef => TimerType},
+ TimerTypes#{TimerType => TimerRef},
+ CancelTimers, TimeoutsR,
+ NewSeen, TimeoutEvents)
+ end
end
end.
-%% Enqueue immediate timeout events and start event timer
-process_timeout_events(TimerRefs, TimerTypes, [], EventsR) ->
- {TimerRefs, TimerTypes, EventsR};
-process_timeout_events(
- TimerRefs, TimerTypes,
- [{timeout,0,TimerMsg}|TimeoutEvents], []) ->
- %% No enqueued events - insert a timeout zero event
- TimeoutEvent = {timeout,TimerMsg},
- process_timeout_events(
- TimerRefs, TimerTypes,
- TimeoutEvents, [TimeoutEvent]);
-process_timeout_events(
- TimerRefs, TimerTypes,
- [{timeout,Time,TimerMsg}], []) ->
- %% No enqueued events - start event timer
- TimerRef = erlang:start_timer(Time, self(), TimerMsg),
- process_timeout_events(
- TimerRefs#{TimerRef => timeout}, TimerTypes#{timeout => TimerRef},
- [], []);
-process_timeout_events(
- TimerRefs, TimerTypes,
- [{timeout,_Time,_TimerMsg}|TimeoutEvents], EventsR) ->
- %% There will be some other event so optimize by not starting
- %% an event timer to just have to cancel it again
- process_timeout_events(
- TimerRefs, TimerTypes,
- TimeoutEvents, EventsR);
-process_timeout_events(
- TimerRefs, TimerTypes,
- [{_TimeoutType,_TimeoutMsg} = TimeoutEvent|TimeoutEvents], EventsR) ->
- process_timeout_events(
- TimerRefs, TimerTypes,
- TimeoutEvents, [TimeoutEvent|EventsR]).
+%% Enqueue immediate timeout events (timeout 0 events)
+%%
+%% Event timer timeout 0 events gets special treatment since
+%% an event timer is cancelled by any received event,
+%% so if there are enqueued events before the event timer
+%% timeout 0 event - the event timer is cancelled hence no event.
+%%
+%% Other (state_timeout) timeout 0 events that are after
+%% the event timer timeout 0 events are considered to
+%% belong to timers that were started after the event timer
+%% timeout 0 event fired, so they do not cancel the event timer.
+%%
+prepend_timeout_events([], EventsR) ->
+ EventsR;
+prepend_timeout_events([{timeout,_} = TimeoutEvent|TimeoutEvents], []) ->
+ prepend_timeout_events(TimeoutEvents, [TimeoutEvent]);
+prepend_timeout_events([{timeout,_}|TimeoutEvents], EventsR) ->
+ prepend_timeout_events(TimeoutEvents, EventsR);
+prepend_timeout_events([TimeoutEvent|TimeoutEvents], EventsR) ->
+ %% Just prepend all others
+ prepend_timeout_events(TimeoutEvents, [TimeoutEvent|EventsR]).
@@ -1448,18 +1529,11 @@ process_timeout_events(
%% Server helpers
reply_then_terminate(
- Class, Reason, Stacktrace,
- Debug, #{state := State} = S, Q, Replies) ->
- if
- is_list(Replies) ->
- do_reply_then_terminate(
- Class, Reason, Stacktrace,
- Debug, S, Q, Replies, State);
- true ->
- do_reply_then_terminate(
- Class, Reason, Stacktrace,
- Debug, S, Q, [Replies], State)
- end.
+ Class, Reason, Stacktrace, Debug,
+ #{state := State} = S, Q, Replies) ->
+ do_reply_then_terminate(
+ Class, Reason, Stacktrace, Debug,
+ S, Q, listify(Replies), State).
%%
do_reply_then_terminate(
Class, Reason, Stacktrace, Debug, S, Q, [], _State) ->
@@ -1485,21 +1559,25 @@ do_reply(Debug, S, State, From, Reply) ->
terminate(
- Class, Reason, Stacktrace,
- Debug,
+ Class, Reason, Stacktrace, Debug,
#{module := Module, state := State, data := Data, postponed := P} = S,
Q) ->
- try Module:terminate(Reason, State, Data) of
- _ -> ok
- catch
- _ -> ok;
- C:R ->
- ST = erlang:get_stacktrace(),
- error_info(
- C, R, ST, S, Q, P,
- format_status(terminate, get(), S)),
- sys:print_log(Debug),
- erlang:raise(C, R, ST)
+ case erlang:function_exported(Module, terminate, 3) of
+ true ->
+ try Module:terminate(Reason, State, Data) of
+ _ -> ok
+ catch
+ _ -> ok;
+ C:R ->
+ ST = erlang:get_stacktrace(),
+ error_info(
+ C, R, ST, S, Q, P,
+ format_status(terminate, get(), S)),
+ sys:print_log(Debug),
+ erlang:raise(C, R, ST)
+ end;
+ false ->
+ ok
end,
_ =
case Reason of
@@ -1637,28 +1715,21 @@ listify(Item) ->
[Item].
%% Cancel timer if running, otherwise no op
-cancel_timer_by_type(TimerType, TimerRefs, TimerTypes) ->
+%%
+%% This is an asynchronous cancel so the timer is not really cancelled
+%% until we get a cancel_timer msg i.e {cancel_timer,TimerRef,_}.
+%% In the mean time we might get a timeout message.
+%%
+%% Remove the timer from TimerTypes.
+%% When we get the cancel_timer msg we remove it from TimerRefs.
+cancel_timer_by_type(TimerType, TimerTypes, CancelTimers) ->
case TimerTypes of
#{TimerType := TimerRef} ->
cancel_timer(TimerRef),
- {maps:remove(TimerRef, TimerRefs),
- maps:remove(TimerType, TimerTypes)};
+ {maps:remove(TimerType, TimerTypes),CancelTimers + 1};
#{} ->
- {TimerRefs,TimerTypes}
+ {TimerTypes,CancelTimers}
end.
-%%cancel_timer(undefined) ->
-%% ok;
-cancel_timer(TRef) ->
- case erlang:cancel_timer(TRef) of
- false ->
- %% We have to assume that TRef is the ref of a running timer
- %% and if so the timer has expired
- %% hence we must wait for the timeout message
- receive
- {timeout,TRef,_} ->
- ok
- end;
- _TimeLeft ->
- ok
- end.
+cancel_timer(TimerRef) ->
+ ok = erlang:cancel_timer(TimerRef, [{async,true}]).
diff --git a/lib/stdlib/src/io_lib_pretty.erl b/lib/stdlib/src/io_lib_pretty.erl
index 16ca2f41dc..ba2cffdcb3 100644
--- a/lib/stdlib/src/io_lib_pretty.erl
+++ b/lib/stdlib/src/io_lib_pretty.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1996-2016. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2017. 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.
@@ -128,6 +128,10 @@ max_cs(M, _Len) ->
M.
-define(ATM(T), is_list(element(1, T))).
+-define(ATM_PAIR(Pair),
+ ?ATM(element(2, element(1, Pair))) % Key
+ andalso
+ ?ATM(element(3, element(1, Pair)))). % Value
-define(ATM_FLD(Field), ?ATM(element(4, element(1, Field)))).
pp({_S, Len} = If, Col, Ll, M, _TInd, _Ind, LD, W)
@@ -140,9 +144,8 @@ pp({{tuple,true,L}, _Len}, Col, Ll, M, TInd, Ind, LD, W) ->
pp({{tuple,false,L}, _Len}, Col, Ll, M, TInd, Ind, LD, W) ->
[${, pp_list(L, Col + 1, Ll, M, TInd, indent(1, Ind), LD, $,, W + 1), $}];
pp({{map,Pairs},_Len}, Col, Ll, M, TInd, Ind, LD, W) ->
- [$#,${, pp_list(Pairs, Col + 2, Ll, M, TInd, indent(2, Ind), LD, $,, W + 1), $}];
-pp({{map_pair,K,V},_Len}, Col, Ll, M, TInd, Ind, LD, W) ->
- [pp(K, Col, Ll, M, TInd, Ind, LD, W), " => ", pp(V, Col, Ll, M, TInd, Ind, LD, W)];
+ [$#, ${, pp_map(Pairs, Col + 2, Ll, M, TInd, indent(2, Ind), LD, W + 1),
+ $}];
pp({{record,[{Name,NLen} | L]}, _Len}, Col, Ll, M, TInd, Ind, LD, W) ->
[Name, ${, pp_record(L, NLen, Col, Ll, M, TInd, Ind, LD, W + NLen+1), $}];
pp({{bin,S}, _Len}, Col, Ll, M, _TInd, Ind, LD, W) ->
@@ -166,6 +169,46 @@ pp_tag_tuple([{Tag,Tlen} | L], Col, Ll, M, TInd, Ind, LD, W) ->
[Tag, S | pp_list(L, Tcol, Ll, M, TInd, Indent, LD, S, W+Tlen+1)]
end.
+pp_map([], _Col, _Ll, _M, _TInd, _Ind, _LD, _W) ->
+ "";
+pp_map({dots, _}, _Col, _Ll, _M, _TInd, _Ind, _LD, _W) ->
+ "...";
+pp_map([P | Ps], Col, Ll, M, TInd, Ind, LD, W) ->
+ {PS, PW} = pp_pair(P, Col, Ll, M, TInd, Ind, last_depth(Ps, LD), W),
+ [PS | pp_pairs_tail(Ps, Col, Col + PW, Ll, M, TInd, Ind, LD, PW)].
+
+pp_pairs_tail([], _Col0, _Col, _Ll, _M, _TInd, _Ind, _LD, _W) ->
+ "";
+pp_pairs_tail({dots, _}, _Col0, _Col, _M, _Ll, _TInd, _Ind, _LD, _W) ->
+ ",...";
+pp_pairs_tail([{_, Len}=P | Ps], Col0, Col, Ll, M, TInd, Ind, LD, W) ->
+ LD1 = last_depth(Ps, LD),
+ ELen = 1 + Len,
+ if
+ LD1 =:= 0, ELen + 1 < Ll - Col, W + ELen + 1 =< M, ?ATM_PAIR(P);
+ LD1 > 0, ELen < Ll - Col - LD1, W + ELen + LD1 =< M, ?ATM_PAIR(P) ->
+ [$,, write_pair(P) |
+ pp_pairs_tail(Ps, Col0, Col+ELen, Ll, M, TInd, Ind, LD, W+ELen)];
+ true ->
+ {PS, PW} = pp_pair(P, Col0, Ll, M, TInd, Ind, LD1, 0),
+ [$,, $\n, Ind, PS |
+ pp_pairs_tail(Ps, Col0, Col0 + PW, Ll, M, TInd, Ind, LD, PW)]
+ end.
+
+pp_pair({_, Len}=Pair, Col, Ll, M, _TInd, _Ind, LD, W)
+ when Len < Ll - Col - LD, Len + W + LD =< M ->
+ {write_pair(Pair), if
+ ?ATM_PAIR(Pair) ->
+ Len;
+ true ->
+ Ll % force nl
+ end};
+pp_pair({{map_pair, K, V}, _Len}, Col0, Ll, M, TInd, Ind0, LD, W) ->
+ I = map_value_indent(TInd),
+ Ind = indent(I, Ind0),
+ {[pp(K, Col0, Ll, M, TInd, Ind0, LD, W), " =>\n",
+ Ind | pp(V, Col0 + I, Ll, M, TInd, Ind, LD, 0)], Ll}. % force nl
+
pp_record([], _Nlen, _Col, _Ll, _M, _TInd, _Ind, _LD, _W) ->
"";
pp_record({dots, _}, _Nlen, _Col, _Ll, _M, _TInd, _Ind, _LD, _W) ->
@@ -204,7 +247,11 @@ pp_field({_, Len}=Fl, Col, Ll, M, _TInd, _Ind, LD, W)
end};
pp_field({{field, Name, NameL, F}, _Len}, Col0, Ll, M, TInd, Ind0, LD, W0) ->
{Col, Ind, S, W} = rec_indent(NameL, TInd, Col0, Ind0, W0 + NameL),
- {[Name, " = ", S | pp(F, Col, Ll, M, TInd, Ind, LD, W)], Ll}. % force nl
+ Sep = case S of
+ [$\n | _] -> " =";
+ _ -> " = "
+ end,
+ {[Name, Sep, S | pp(F, Col, Ll, M, TInd, Ind, LD, W)], Ll}. % force nl
rec_indent(RInd, TInd, Col0, Ind0, W0) ->
Nl = (TInd > 0) and (RInd > TInd),
@@ -291,8 +338,8 @@ write({{list, L}, _}) ->
[$[, write_list(L, $|), $]];
write({{map, Pairs}, _}) ->
[$#,${, write_list(Pairs, $,), $}];
-write({{map_pair, K, V}, _}) ->
- [write(K)," => ",write(V)];
+write({{map_pair, _K, _V}, _}=Pair) ->
+ write_pair(Pair);
write({{record, [{Name,_} | L]}, _}) ->
[Name, ${, write_fields(L), $}];
write({{bin, S}, _}) ->
@@ -300,6 +347,9 @@ write({{bin, S}, _}) ->
write({S, _}) ->
S.
+write_pair({{map_pair, K, V}, _}) ->
+ [write(K), " => ", write(V)].
+
write_fields([]) ->
"";
write_fields({dots, _}) ->
@@ -333,7 +383,7 @@ write_tail(E, S) ->
%% The depth (D) is used for extracting and counting the characters to
%% print. The structure is kept so that the returned intermediate
-%% format can be formatted. The separators (list, tuple, record) are
+%% format can be formatted. The separators (list, tuple, record, map) are
%% counted but need to be added later.
%% D =/= 0
@@ -406,21 +456,32 @@ print_length(Term, _D, _RF, _Enc, _Str) ->
print_length_map(_Map, 1, _RF, _Enc, _Str) ->
{"#{...}", 6};
print_length_map(Map, D, RF, Enc, Str) when is_map(Map) ->
- Pairs = print_length_map_pairs(maps:to_list(Map), D, RF, Enc, Str),
+ Pairs = print_length_map_pairs(maps_to_list(Map, D), D, RF, Enc, Str),
{{map, Pairs}, list_length(Pairs, 3)}.
+maps_to_list(Map, D) when D < 0; map_size(Map) =< D ->
+ maps:to_list(Map);
+maps_to_list(Map, D) ->
+ F = fun(_K, _V, {N, L}) when N =:= D ->
+ throw(L);
+ (K, V, {N, L}) ->
+ {N+1, [{K, V} | L]}
+ end,
+ lists:reverse(catch maps:fold(F, {0, []}, Map)).
+
print_length_map_pairs([], _D, _RF, _Enc, _Str) ->
[];
print_length_map_pairs(_Pairs, 1, _RF, _Enc, _Str) ->
{dots, 3};
-print_length_map_pairs([{K,V}|Pairs], D, RF, Enc, Str) ->
- [print_length_map_pair(K,V,D-1,RF,Enc,Str) |
- print_length_map_pairs(Pairs,D-1,RF,Enc,Str)].
+print_length_map_pairs([{K, V} | Pairs], D, RF, Enc, Str) ->
+ [print_length_map_pair(K, V, D - 1, RF, Enc, Str) |
+ print_length_map_pairs(Pairs, D - 1, RF, Enc, Str)].
print_length_map_pair(K, V, D, RF, Enc, Str) ->
{KS, KL} = print_length(K, D, RF, Enc, Str),
{VS, VL} = print_length(V, D, RF, Enc, Str),
- {{map_pair, {KS,KL}, {VS,VL}}, KL + VL}.
+ KL1 = KL + 4,
+ {{map_pair, {KS, KL1}, {VS, VL}}, KL1 + VL}.
print_length_tuple(_Tuple, 1, _RF, _Enc, _Str) ->
{"{...}", 5};
@@ -612,6 +673,8 @@ cind({{tuple,true,L}, _Len}, Col, Ll, M, Ind, LD, W) ->
cind_tag_tuple(L, Col, Ll, M, Ind, LD, W + 1);
cind({{tuple,false,L}, _Len}, Col, Ll, M, Ind, LD, W) ->
cind_list(L, Col + 1, Ll, M, Ind, LD, W + 1);
+cind({{map,Pairs},_Len}, Col, Ll, M, Ind, LD, W) ->
+ cind_map(Pairs, Col + 2, Ll, M, Ind, LD, W + 2);
cind({{record,[{_Name,NLen} | L]}, _Len}, Col, Ll, M, Ind, LD, W) ->
cind_record(L, NLen, Col, Ll, M, Ind, LD, W + NLen + 1);
cind({{bin,_S}, _Len}, _Col, _Ll, _M, Ind, _LD, _W) ->
@@ -637,6 +700,48 @@ cind_tag_tuple([{_Tag,Tlen} | L], Col, Ll, M, Ind, LD, W) ->
throw(no_good)
end.
+cind_map([P | Ps], Col, Ll, M, Ind, LD, W) ->
+ PW = cind_pair(P, Col, Ll, M, Ind, last_depth(Ps, LD), W),
+ cind_pairs_tail(Ps, Col, Col + PW, Ll, M, Ind, LD, W + PW);
+cind_map(_, _Col, _Ll, _M, Ind, _LD, _W) ->
+ Ind.
+
+cind_pairs_tail([{_, Len}=P | Ps], Col0, Col, Ll, M, Ind, LD, W) ->
+ LD1 = last_depth(Ps, LD),
+ ELen = 1 + Len,
+ if
+ LD1 =:= 0, ELen + 1 < Ll - Col, W + ELen + 1 =< M, ?ATM_PAIR(P);
+ LD1 > 0, ELen < Ll - Col - LD1, W + ELen + LD1 =< M, ?ATM_PAIR(P) ->
+ cind_pairs_tail(Ps, Col0, Col + ELen, Ll, M, Ind, LD, W + ELen);
+ true ->
+ PW = cind_pair(P, Col0, Ll, M, Ind, LD1, 0),
+ cind_pairs_tail(Ps, Col0, Col0 + PW, Ll, M, Ind, LD, PW)
+ end;
+cind_pairs_tail(_, _Col0, _Col, _Ll, _M, Ind, _LD, _W) ->
+ Ind.
+
+cind_pair({{map_pair, _Key, _Value}, Len}=Pair, Col, Ll, M, _Ind, LD, W)
+ when Len < Ll - Col - LD, Len + W + LD =< M ->
+ if
+ ?ATM_PAIR(Pair) ->
+ Len;
+ true ->
+ Ll
+ end;
+cind_pair({{map_pair, K, V}, _Len}, Col0, Ll, M, Ind, LD, W0) ->
+ cind(K, Col0, Ll, M, Ind, LD, W0),
+ I = map_value_indent(Ind),
+ cind(V, Col0 + I, Ll, M, Ind, LD, 0),
+ Ll.
+
+map_value_indent(TInd) ->
+ case TInd > 0 of
+ true ->
+ TInd;
+ false ->
+ 4
+ end.
+
cind_record([F | Fs], Nlen, Col0, Ll, M, Ind, LD, W0) ->
Nind = Nlen + 1,
{Col, W} = cind_rec(Nind, Col0, Ll, M, Ind, W0),
diff --git a/lib/stdlib/src/qlc.erl b/lib/stdlib/src/qlc.erl
index f3665824f2..8c4d835432 100644
--- a/lib/stdlib/src/qlc.erl
+++ b/lib/stdlib/src/qlc.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2004-2016. All Rights Reserved.
+%% Copyright Ericsson AB 2004-2017. 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.
@@ -1292,6 +1292,10 @@ abstr_term(Fun, Line) when is_function(Fun) ->
end;
abstr_term(PPR, Line) when is_pid(PPR); is_port(PPR); is_reference(PPR) ->
{special, Line, lists:flatten(io_lib:write(PPR))};
+abstr_term(Map, Line) when is_map(Map) ->
+ {map,Line,
+ [{map_field_assoc,Line,abstr_term(K, Line),abstr_term(V, Line)} ||
+ {K,V} <- maps:to_list(Map)]};
abstr_term(Simple, Line) ->
erl_parse:abstract(Simple, erl_anno:line(Line)).
diff --git a/lib/stdlib/src/zip.erl b/lib/stdlib/src/zip.erl
index 340cc21390..fadf96146e 100644
--- a/lib/stdlib/src/zip.erl
+++ b/lib/stdlib/src/zip.erl
@@ -179,19 +179,6 @@
external_attr,
local_header_offset}).
-%% Unix extra fields (not yet supported)
--define(UNIX_EXTRA_FIELD_TAG, 16#000d).
--record(unix_extra_field, {atime,
- mtime,
- uid,
- gid}).
-
-%% extended timestamps (not yet supported)
--define(EXTENDED_TIMESTAMP_TAG, 16#5455).
-%% -record(extended_timestamp, {mtime,
-%% atime,
-%% ctime}).
-
-define(END_OF_CENTRAL_DIR_MAGIC, 16#06054b50).
-define(END_OF_CENTRAL_DIR_SZ, (4+2+2+2+2+4+4+2)).
@@ -381,9 +368,12 @@ do_unzip(F, Options) ->
{Info, In1} = get_central_dir(In0, RawIterator, Input),
%% get rid of zip-comment
Z = zlib:open(),
- Files = get_z_files(Info, Z, In1, Opts, []),
- zlib:close(Z),
- Input(close, In1),
+ Files = try
+ get_z_files(Info, Z, In1, Opts, [])
+ after
+ zlib:close(Z),
+ Input(close, In1)
+ end,
{ok, Files}.
%% Iterate over all files in a zip archive
@@ -460,11 +450,20 @@ do_zip(F, Files, Options) ->
#zip_opts{output = Output, open_opts = OpO} = Opts,
Out0 = Output({open, F, OpO}, []),
Z = zlib:open(),
- {Out1, LHS, Pos} = put_z_files(Files, Z, Out0, 0, Opts, []),
- zlib:close(Z),
- Out2 = put_central_dir(LHS, Pos, Out1, Opts),
- Out3 = Output({close, F}, Out2),
- {ok, Out3}.
+ try
+ {Out1, LHS, Pos} = put_z_files(Files, Z, Out0, 0, Opts, []),
+ zlib:close(Z),
+ Out2 = put_central_dir(LHS, Pos, Out1, Opts),
+ Out3 = Output({close, F}, Out2),
+ {ok, Out3}
+ catch
+ C:R ->
+ Stk = erlang:get_stacktrace(),
+ zlib:close(Z),
+ Output({close, F}, Out0),
+ erlang:raise(C, R, Stk)
+ end.
+
%% List zip directory contents
%%
@@ -1379,12 +1378,7 @@ cd_file_header_to_file_info(FileName,
gid = 0},
add_extra_info(FI, ExtraField).
-%% add extra info to file (some day when we implement it)
-add_extra_info(FI, <<?EXTENDED_TIMESTAMP_TAG:16/little, _Rest/binary>>) ->
- FI; % not yet supported, some other day...
-add_extra_info(FI, <<?UNIX_EXTRA_FIELD_TAG:16/little, Rest/binary>>) ->
- _UnixExtra = unix_extra_field_and_var_from_bin(Rest),
- FI; % not yet supported, and not widely used
+%% Currently, we ignore all the extra fields.
add_extra_info(FI, _) ->
FI.
@@ -1572,20 +1566,6 @@ dos_date_time_from_datetime({{Year, Month, Day}, {Hour, Min, Sec}}) ->
<<DosDate:16>> = <<YearFrom1980:7, Month:4, Day:5>>,
{DosDate, DosTime}.
-unix_extra_field_and_var_from_bin(<<TSize:16/little,
- ATime:32/little,
- MTime:32/little,
- UID:16/little,
- GID:16/little,
- Var:TSize/binary>>) ->
- {#unix_extra_field{atime = ATime,
- mtime = MTime,
- uid = UID,
- gid = GID},
- Var};
-unix_extra_field_and_var_from_bin(_) ->
- throw(bad_unix_extra_field).
-
%% A pwrite-like function for iolists (used by memory-option)
pwrite_binary(B, Pos, Bin) when byte_size(B) =:= Pos ->
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-02 06:47:00 +0000