[Boost-bugs] [Boost C++ Libraries] #6005: Potential epoll fd leak in boost::asio::detail::epoll_reactor

Subject: [Boost-bugs] [Boost C++ Libraries] #6005: Potential epoll fd leak in boost::asio::detail::epoll_reactor
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2011-10-11 03:01:44

#6005: Potential epoll fd leak in boost::asio::detail::epoll_reactor
----------------------------------------+-----------------------------------
 Reporter:  yafei.zhang@…               |       Owner:  chris_kohlhoff
     Type:  Bugs                        |      Status:  new           
Milestone:  To Be Determined            |   Component:  asio          
  Version:  Boost 1.47.0                |    Severity:  Problem       
 Keywords:  asio linux epoll fd leak    |  
----------------------------------------+-----------------------------------
 in boost/asio/detail/impl/epoll_reactor.ipp:

 epoll_reactor::epoll_reactor(boost::asio::io_service& io_service)
   : boost::asio::detail::service_base<epoll_reactor>(io_service),
     io_service_(use_service<io_service_impl>(io_service)),
     mutex_(),
     epoll_fd_(do_epoll_create()),  ------> epoll_fd_ may leak if the
 following member's initialization throws an exception
     timer_fd_(do_timerfd_create()),
     interrupter_(), ------> may throw because of EMFILE
     shutdown_(false)
 {
   // Add the interrupter's descriptor to epoll.
   epoll_event ev = { 0, { 0 } };
   ev.events = EPOLLIN | EPOLLERR | EPOLLET;
   ev.data.ptr = &interrupter_;
   epoll_ctl(epoll_fd_, EPOLL_CTL_ADD, interrupter_.read_descriptor(),
 &ev);
   interrupter_.interrupt();

   // Add the timer descriptor to epoll.
   if (timer_fd_ != -1)
   {
     ev.events = EPOLLIN | EPOLLERR;
     ev.data.ptr = &timer_fd_;
     epoll_ctl(epoll_fd_, EPOLL_CTL_ADD, timer_fd_, &ev);
   }
 }

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/6005>
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