[Boost-bugs] [Boost C++ Libraries] #4578: asio: always use pselect() on hpux11.31 over select()

Subject: [Boost-bugs] [Boost C++ Libraries] #4578: asio: always use pselect() on hpux11.31 over select()
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2010-08-20 15:14:12

#4578: asio: always use pselect() on hpux11.31 over select()
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 Reporter:  Michael Haubenwallner <michael.haubenwallner@…>           |       Owner:  chris_kohlhoff
     Type:  Patches                                                   |      Status:  new           
Milestone:  To Be Determined                                          |   Component:  asio          
  Version:  Boost Development Trunk                                   |    Severity:  Problem       
 Keywords:                                                            |  
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 Using <boost/asio.hpp> with gcc (4.2.4) on hpux11.31 results in this error
 with boost-1.39.0:

 /path/to/boost/asio/detail/socket_ops.hpp: In
 function 'int boost::asio::detail::socket_ops::select(int, fd_set*,
 fd_set*,
 fd_set*, timeval*, boost::system::error_code&)':
 /path/to/boost/asio/detail/socket_ops.hpp:647:
 error: cannot convert 'fd_set*' to 'int*' for argument '2' to 'int
 select(size_t, int*, int*, int*, const timeval*)'

 Unfortunately, the application has included <time.h> before
 <boost/asio.hpp> - and thus before <sys/time.h>. This causes select() to
 be declared with 'int*' instead of 'fd_set*' arguments.

 Since hpux11.31, there is pselect() in <sys/select.h>.
 Before hpux11.31, there is no <sys/select.h> (and no pselect).
 Additionally, hpux11.31 defines {double _}SELECT in <sys/time.h>, so it
 seems to be better to listen to this one instead of _HP_aCC when deciding
 to use pselect().

 Attached patch is for boost-1.39.0, but this code looks unchanged in trunk
 (parts of socket_ops.hpp were moved to impl/socket_ops.ipp).

 Thank you!

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/4578>
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