[Boost-bugs] [Boost C++ Libraries] #4971: stream_descriptor not remove descriptor from epoll_reactor

Subject: [Boost-bugs] [Boost C++ Libraries] #4971: stream_descriptor not remove descriptor from epoll_reactor
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2010-12-09 09:33:58

#4971: stream_descriptor not remove descriptor from epoll_reactor
---------------------------------------------+------------------------------
 Reporter:  APinaev@…                        |       Owner:  chris_kohlhoff
     Type:  Bugs                             |      Status:  new           
Milestone:  To Be Determined                 |   Component:  asio          
  Version:  Boost 1.45.0                     |    Severity:  Problem       
 Keywords:  epoll_reactor stream_descriptor  |  
---------------------------------------------+------------------------------
 {{{
 #include <iostream>

 #include <unistd.h>

 #include <boost/asio.hpp>
 #include <boost/asio/posix/stream_descriptor.hpp>

 int main() {
         boost::asio::io_service io_srv;
         {
                 int cfd = ::dup(STDOUT_FILENO);
                 std::cout << "fd=" << cfd << std::endl << std::flush;
                 boost::asio::posix::stream_descriptor sd(io_srv, cfd);
                 sd.cancel();
                 sd.close();
         }
         {
                 int cfd = ::dup(STDOUT_FILENO);
                 std::cout << "fd=" << cfd << std::endl << std::flush;
                 boost::asio::posix::stream_descriptor sd(io_srv, cfd);
                 sd.cancel();
                 sd.close();
         }
 }
 }}}
 this code nice work on Fedora Core 5 / boost-1.44.0 (used select_reactor),
 but on Fedora 14 (epoll_reactor) boost- 1.44.0, 1.45.0 and TRUNK failed:
 {{{
 $ ./a.out
 fd=3
 fd=3
 terminate called after throwing an instance of
 'boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::system::system_error>
 >'
   what():  File exists
 ... (core dumped)
 }}}
 error thrown from constructor stream_descriptor, when boost try add
 descriptor inside epoll_reactor by calling epoll_ctl and receive error
 EEXIST

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/4971>
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