[Boost-bugs] [Boost C++ Libraries] #1862: file_lock.hpp will not compile - at least under MSVC8

Subject: [Boost-bugs] [Boost C++ Libraries] #1862: file_lock.hpp will not compile - at least under MSVC8
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2008-04-24 21:45:06

#1862: file_lock.hpp will not compile - at least under MSVC8
--------------------------------------------------+-------------------------
 Reporter:  Ranger Harke <rharke.bugs_at_[hidden]>  |       Owner:  igaztanaga  
     Type:  Bugs                                  |      Status:  new         
Milestone:  Boost 1.35.1                          |   Component:  interprocess
  Version:  Boost 1.35.0                          |    Severity:  Problem     
 Keywords:  file_lock                             |  
--------------------------------------------------+-------------------------
 Hi,

 I'm attempting to use interprocess::file_lock in 1.35.0. Unfortunately, it
 will not compile at all in my environment, which is Microsoft Visual
 Studio 2005 on WinXP. Merely #include'ing
 boost/interprocess/sync/file_lock.hpp causes this failure mode.

 A summary of the errors:

 {{{
 <...> boost/interprocess/sync/file_lock.hpp(167) : error C2535: 'bool
 boost::interprocess::file_lock::timed_acquire_file_lock(boost::interprocess::file_handle_t,bool
 &,const boost::posix_time::ptime &)' : member function already defined or
 declared
         e:\dev\cub\boost\boost/interprocess/sync/file_lock.hpp(110) : see
 declaration of 'boost::interprocess::file_lock::timed_acquire_file_lock'
 <...> boost/interprocess/sync/file_lock.hpp(195) : error C2535: 'bool
 boost::interprocess::file_lock::timed_acquire_file_lock_sharable(boost::interprocess::file_handle_t,bool
 &,const boost::posix_time::ptime &)' : member function already defined or
 declared
         e:\dev\cub\boost\boost/interprocess/sync/file_lock.hpp(138) : see
 declaration of
 'boost::interprocess::file_lock::timed_acquire_file_lock_sharable'
 <...> boost/interprocess/sync/file_lock.hpp(119) : error C3861:
 'try_acquire_file_lock': identifier not found
 <...> boost/interprocess/sync/file_lock.hpp(147) : error C3861:
 'try_acquire_file_lock_sharable': identifier not found
 <...> boost/interprocess/sync/file_lock.hpp(175) : error C3861:
 'try_acquire_file_lock': identifier not found
 <...> boost/interprocess/sync/file_lock.hpp(188) : error C3861: 'sleep':
 identifier not found
 <...> boost/interprocess/sync/file_lock.hpp(203) : error C3861:
 'try_acquire_file_lock_sharable': identifier not found
 <...> boost/interprocess/sync/file_lock.hpp(262) : error C2039:
 'timed_acquire_file_lock' : is not a member of
 'boost::interprocess::detail'
 <...> boost/interprocess/sync/file_lock.hpp(298) : error C2039:
 'timed_acquire_file_lock_sharable' : is not a member of
 'boost::interprocess::detail'
 }}}

 Investigation of file_lock.hpp reveals that:
  * Indeed, both timed_acquire_file_lock and
 timed_acquire_file_lock_sharable are defined twice ''in their entirety''
  * Various functions calls are to functions in incorrect namespaces;
    * try_acquire_file_lock, for example, is I believe in
 boost::interprocess::detail, which is not in scope (only boost::detail
 is).
    * I'm not sure what scope sleep is supposed to be in.. there are a few
 implementations peppered throughout Boost

 I'm not sure if other compilers perhaps have different scoping semantics
 and/or different ways of handling function redefinitions, but this
 definitely doesn't seem to fly on MSVC8.

 A simple reproduction case:

 {{{
 #include <boost/interprocess/sync/file_lock.hpp>

 int main(int argc, char** argv) {
   printf("hello world");
   return 0;
 }
 }}}

 Really only the inclusion of the header file is necessary, as stated
 earlier.

 Thanks!

-- 
Ticket URL: <http://svn.boost.org/trac/boost/ticket/1862>
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