Re: [Boost-users] [msm] EUML submachine without macro

Subject: Re: [Boost-users] [msm] EUML submachine without macro
From: Christophe Henry (christophe.j.henry_at_[hidden])
Date: 2011-06-23 17:57:05

> Hi Christophe,
>
> I have an addition question regarding the pseudo exit point.
>
> The following code adds a pseudo exit point to your
> CompositeTutorialWithEumlTable.cpp example:
>
> // Exit event
> struct exit_impl : msm::front::euml::euml_event<exit_impl>{};
> exit_impl ev_exit;
> ...
> // Submachine
> struct _Playing : public msm::front::state_machine_def<_Playing >
> {
>    ...
>    // Pseudo exit state
>    struct Exit_ : public msm::front::exit_pseudo_state<exit_impl>
>                      , public msm::front::euml::euml_state<Exit_> {};
>    static Exit_ Exit;
>    ...
>    BOOST_MSM_EUML_DECLARE_TRANSITION_TABLE((
>        Exit == Song1 + ev_exit
>    ),transition_table )
> };
>
> I'm in doubt what should be stated in the main machine's transition table.
> The Stopped state is never reached when this line is used:
>
>   Stopped == exit_pt_(Playing , _Playing::Exit) + ev_exit
>
> However, this entry works:
>
>   Stopped == Playing + ev_exit
>
> Could you please clarify what should be actually entered.

Hi Ray,

this usage of eUML is new so I haven't tried all cases yet and this is one I 
didn't think out comnpletely.

I'm working on a solution, but it'll take a little longer to have it working 
in all cases.
I think I might still need a few more days.

Christophe