Re: [Boost-bugs] [Boost C++ Libraries] #5418: Error in asio example: tick_count_timer

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #5418: Error in asio example: tick_count_timer
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2011-04-13 23:32:16

#5418: Error in asio example: tick_count_timer
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  Reporter:  Peter Grimstrup   |       Owner:  chris_kohlhoff
      Type:  Bugs              |      Status:  new           
 Milestone:  To Be Determined  |   Component:  asio          
   Version:  Boost 1.47.0      |    Severity:  Problem       
Resolution:                    |    Keywords:                
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Comment (by Ross MacGregor <gordonrossmacgregor@…>):

 I've discovered a more serious problem. Methods
 tick_count_traits::subtract will return a large overflow value if t2 > t1.
 This happens periodically in the timer_queue and causes the timer to stop
 working for a long period of time.

 I've attached my solution to the problem. Basically, I changed
 duration_type to be a signed value that is reflected in the call to the
 method to_posix_duration. It may be possible to reduce my subtract method
 to something less complicated. I've also included a small test for
 tick_count_traits in the example.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/5418#comment:1>
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