diff options
Diffstat (limited to 'lib/stdlib')
| -rw-r--r-- | lib/stdlib/src/gen_statem.erl | 125 |
1 files changed, 68 insertions, 57 deletions
diff --git a/lib/stdlib/src/gen_statem.erl b/lib/stdlib/src/gen_statem.erl index 7a23a2a681..fa14808f9a 100644 --- a/lib/stdlib/src/gen_statem.erl +++ b/lib/stdlib/src/gen_statem.erl @@ -1356,7 +1356,7 @@ parse_enter_actions(Debug, S, State, Actions, Hibernate, TimeoutsR) -> parse_actions( Debug, S, State, listify(Actions), Hibernate, TimeoutsR, Postpone, NextEventsR). - + parse_actions(Debug, S, State, Actions) -> Hibernate = false, TimeoutsR = [{timeout,infinity,infinity}], %% Will cancel event timer @@ -1387,61 +1387,29 @@ 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, NewHibernate, 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,Time,_} = Timeout - when is_integer(Time), Time >= 0; - Time =:= infinity -> - parse_actions( - Debug, S, State, Actions, - Hibernate, [Timeout|TimeoutsR], Postpone, NextEventsR); - {timeout,_,_} -> - {error, - {bad_action_from_state_function,Action}, - ?STACKTRACE()}; - Time - when is_integer(Time), Time >= 0; - Time =:= infinity -> - Timeout = {timeout,Time,Time}, - parse_actions( - Debug, S, State, Actions, - Hibernate, [Timeout|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, NewPostpone, NextEventsR); + %% {next_event,Type,Content} -> case event_type(Type) of true when NextEventsR =/= forbidden -> @@ -1456,12 +1424,45 @@ 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 %% @@ -1475,7 +1476,23 @@ parse_timers( parse_timers( TimerRefs, TimerTypes, CancelTimers, [Timeout|TimeoutsR], Seen, TimeoutEvents) -> - {TimerType,Time,TimerMsg} = Timeout, + 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 @@ -1485,8 +1502,8 @@ parse_timers( #{} -> %% Unseen type - handle NewSeen = Seen#{TimerType => true}, - if - Time =:= infinity -> + case Time of + infinity -> %% Cancel any running timer {NewTimerTypes,NewCancelTimers} = cancel_timer_by_type( @@ -1494,7 +1511,7 @@ parse_timers( parse_timers( TimerRefs, NewTimerTypes, NewCancelTimers, TimeoutsR, NewSeen, TimeoutEvents); - Time =:= 0 -> + 0 -> %% Cancel any running timer {NewTimerTypes,NewCancelTimers} = cancel_timer_by_type( @@ -1504,7 +1521,7 @@ parse_timers( parse_timers( TimerRefs, NewTimerTypes, NewCancelTimers, TimeoutsR, NewSeen, [TimeoutEvent|TimeoutEvents]); - true -> + _ -> %% (Re)start the timer TimerRef = erlang:start_timer(Time, self(), TimerMsg), @@ -1512,19 +1529,20 @@ parse_timers( #{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}, - CancelTimers + 1, - TimeoutsR, NewSeen, TimeoutEvents); + NewCancelTimers, TimeoutsR, + NewSeen, TimeoutEvents); #{} -> parse_timers( TimerRefs#{TimerRef => TimerType}, TimerTypes#{TimerType => TimerRef}, - CancelTimers, - TimeoutsR, NewSeen, TimeoutEvents) + CancelTimers, TimeoutsR, + NewSeen, TimeoutEvents) end end end. @@ -1559,16 +1577,9 @@ prepend_timeout_events([TimeoutEvent|TimeoutEvents], EventsR) -> 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. + do_reply_then_terminate( + Class, Reason, Stacktrace, Debug, + S, Q, listify(Replies), State). %% do_reply_then_terminate( Class, Reason, Stacktrace, Debug, S, Q, [], _State) -> |