Re: [Boost-bugs] [Boost C++ Libraries] #7167: interprocess_condition doesn't implement move semantics

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #7167: interprocess_condition doesn't implement move semantics
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2012-08-24 19:41:01

#7167: interprocess_condition doesn't implement move semantics
--------------------------------------------------+-------------------------
  Reporter:  John DiMatteo <jdimatteo@…>          |       Owner:  igaztanaga  
      Type:  Bugs                                 |      Status:  closed      
 Milestone:  To Be Determined                     |   Component:  interprocess
   Version:  Boost 1.51.0                         |    Severity:  Problem     
Resolution:  invalid                              |    Keywords:              
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Changes (by igaztanaga):

  * status:  new => closed
  * resolution:  => invalid

Comment:

 It's not possible to add move semantics to condition variables and
 mutexes, because the operating system but might store the address of the
 synchronization object internally. Because of this, pthread_xxx_t is not
 copyable and std::mutex and std::condition_variable are not copyable or
 movable.

 The only way to put objects with member conditions and mutexes in
 containers is to use node-based containers (list, map, set,
 stable_vector...) and use emplace(...) functions, which don't require move
 constructible elements.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/7167#comment:3>
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