Re: [Boost-bugs] [Boost C++ Libraries] #7720: exception lock_error while intensive locking/unlocking of mutex

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #7720: exception lock_error while intensive locking/unlocking of mutex
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2015-09-18 10:19:45

#7720: exception lock_error while intensive locking/unlocking of mutex
--------------------------------+------------------------
  Reporter:  sergey.stepanov@…  |      Owner:  viboes
      Type:  Bugs               |     Status:  reopened
 Milestone:  To Be Determined   |  Component:  thread
   Version:  Boost 1.59.0       |   Severity:  Regression
Resolution:                     |   Keywords:  lock_error
--------------------------------+------------------------

Comment (by duchungjava@…):

 Thank you Viboes,

 Yes, it's true that BOOST_THREAD_PROVIDES_GENERIC_SHARED_MUTEX_ON_WIN
 works well in all of my test cases. However, due to the performance issue,
 it's a difficult decision for us to apply it to our system.

 In one of my experiments, on Boost 1.59, if I modify the unlock_upgrade()
 to reset "new_state.shared_waiting" to zero regardless what the status of
 "last_reader" is, everything seems to work properly.

 I hope you will consider this experiment when you have time.

 Best regards,
 Hung Mai

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/7720#comment:30>
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