Re: [Boost-bugs] [Boost C++ Libraries] #5432: Deadlock with thread group's join_all and other modifier methods.

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #5432: Deadlock with thread group's join_all and other modifier methods.
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2011-12-04 19:02:10

#5432: Deadlock with thread group's join_all and other modifier methods.
-------------------------------+--------------------------------------------
  Reporter:  JDKunk@…          |       Owner:  viboes     
      Type:  Bugs              |      Status:  assigned   
 Milestone:  To Be Determined  |   Component:  thread     
   Version:  Boost 1.47.0      |    Severity:  Showstopper
Resolution:                    |    Keywords:             
-------------------------------+--------------------------------------------
Changes (by viboes):

 * cc: viboes (added)
  * owner:  anthonyw => viboes
  * status:  new => assigned

Comment:

 Your examples is an example of deadlock, but I'm not sure if we can say
 that there is a deadlock in Boost.Thread.

 Your solution seems to not be one, as the thread calling join-all will
 think that all the thread in the group are joined and this could be not
 the case as other thread could be added to it.

 I think that the best the library can do is to move one thread group to
 another.

 Maybe the documentation should stay that access to the thread group from
 any thread in the group will result in a deadlock.

 Other solutions?

 BTW, I don't think this is a Showstopper as you can remove the thread from
 the group after joining all the threads.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/5432#comment:3>
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