Re: [Boost-users] [Statechart] Why does this state machine enter unstable state only in debug mode?

Subject: Re: [Boost-users] [Statechart] Why does this state machine enter unstable state only in debug mode?
From: Andreas Huber (ahd6974-spamboostorgtrap_at_[hidden])
Date: 2011-03-23 04:40:38

> Finally I found the cause:
> This issue is caused by the "Windows procedure can be reentrant" but the
> process_event
> can't.
> When I call MciWndPlay in the windows procedure another msg is generated 
> by
> this call
> and windows try to process this new message in the same Windows procedure
> call, this
> cause the fsm entered a unstable state.

Right, process_event is not reentrant. In a scenario where you'd wish it 
was, asynchronous_state_machine is most likely the better choice than 
state_machine.

Regards,

-- 
Andreas Huber
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