Re: [Boost-bugs] [Boost C++ Libraries] #9280: handling deferred events

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #9280: handling deferred events
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2013-11-18 22:14:25

#9280: handling deferred events
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  Reporter:  Dmitry Banschikov <me@…>  |      Owner:  chenry
      Type:  Bugs                      |     Status:  assigned
 Milestone:  To Be Determined          |  Component:  msm
   Version:  Boost Development Trunk   |   Severity:  Problem
Resolution:                            |   Keywords:
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Changes (by chenry):

 * status:  new => assigned

Comment:

 Correct, this is a bug, precisely, entering the submachine does not check
 for waiting deferred events.
 This would be solved by adding inside do_entry inside state_machine.hpp:

 handle_defer_helper<library_sm> defer_helper(m_deferred_events_queue);
 defer_helper.do_post_handle_deferred(HANDLED_TRUE);

 before : process_message_queue(this);

 This will have for effect that MSM will process
 ev_async_send_cmd_with_reply(1) when entering, and
 ev_async_send_cmd_with_reply(2) will be the last displayed text.

 But frankly, after seeing this, I'm unsure whether it's a great idea to
 keep deferred events while leaving the submachine, I need to think about
 it.

 To check if it solves your problem, I committed this fix in trunk rev.
 86759.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/9280#comment:1>
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