Re: [Boost-bugs] [Boost C++ Libraries] #12293: boost::future::then lambda called before future is ready.

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #12293: boost::future::then lambda called before future is ready.
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2016-08-08 23:32:57

#12293: boost::future::then lambda called before future is ready.
----------------------------------+-------------------------
  Reporter:  Jeffrey.Gramowski@…  |      Owner:  viboes
      Type:  Bugs                 |     Status:  assigned
 Milestone:  To Be Determined     |  Component:  thread
   Version:  Boost 1.60.0         |   Severity:  Problem
Resolution:                       |   Keywords:  future then
----------------------------------+-------------------------

Comment (by viboes):

 You should store the returned future otherwise it will block in


 {{{
         std::async(std::launch::async, [&promise2, &tmpValue](){
             std::this_thread::sleep_for(std::chrono::seconds(1));
             tmpValue = 1;
             promise2.set_value();
         });
 }}}

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Ticket URL: <https://svn.boost.org/trac/boost/ticket/12293#comment:4>
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