[Boost-bugs] [Boost C++ Libraries] #7530: do_epoll_create : errno is manually set to EINVAL, causes problems downstream

Subject: [Boost-bugs] [Boost C++ Libraries] #7530: do_epoll_create : errno is manually set to EINVAL, causes problems downstream
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2012-10-18 17:15:57

#7530: do_epoll_create : errno is manually set to EINVAL, causes problems
downstream
-------------------------------------+--------------------------------------
 Reporter:  launchpadmike@…          |       Owner:  chris_kohlhoff
     Type:  Bugs                     |      Status:  new           
Milestone:  To Be Determined         |   Component:  asio          
  Version:  Boost 1.51.0             |    Severity:  Problem       
 Keywords:                           |  
-------------------------------------+--------------------------------------
 Affected code:
  #if defined(EPOLL_CLOEXEC)
    int fd = epoll_create1(EPOLL_CLOEXEC);
  #else // defined(EPOLL_CLOEXEC)
    int fd = -1;
    errno = EINVAL;
  #endif // defined(EPOLL_CLOEXEC)

 errno is never reset back to 0 (system calls will NOT set it to 0 if
 successful), causing problems with error checking further downstream in
 user code. Suggest using a bool or something instead to indicate that
 epoll_create1 is not present.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/7530>
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