[Boost-bugs] [Boost C++ Libraries] #10237: condition_variable

Subject: [Boost-bugs] [Boost C++ Libraries] #10237: condition_variable
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2014-07-24 05:30:20

#10237: condition_variable
-------------------------------------+----------------------
 Reporter:  anonymous                |      Owner:  anthonyw
     Type:  Bugs                     |     Status:  new
Milestone:  To Be Determined         |  Component:  thread
  Version:  Boost 1.55.0             |   Severity:  Problem
 Keywords:  condition_variable wait  |
-------------------------------------+----------------------
 Os:any windows


 The app will wait infinitly when app code like below:


 //thread A
 {{{
 cout<<"Start to wait B..."<<endl;
 con.wait(lock);
 cout<<"Run A..."<<endl;
 boost::this_thread::sleep(boost::posix_time::seconds(1));//do something
 cout<<"Start to notify B..."<<endl;
 con.notify_one();
 cout<<"End to notify B..."<<endl;
 }}}

 //thread B
 {{{
 boost::this_thread::sleep(boost::posix_time::seconds(2));//do something
 con.notify_one();
 boost::this_thread::sleep(boost::posix_time::seconds(2));
 cout<<"Start to wait A..."<<endl;
 con.wait(lock);//thread A will call notify_one before this line
 cout<<"Run again A..."<<endl;
 }}}

 cause:\boost\thread\win32\condition_variable.hpp line 261
 {{{
 if(detail::interlocked_read_acquire(&total_count))
 }}}
 The code will get read acquire count,and skip release when read acquire
 count is zero

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/10237>
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