[Boost-bugs] [Boost C++ Libraries] #8595: mapped_region::flush - invalid interpretation of async parameter (win32)

Subject: [Boost-bugs] [Boost C++ Libraries] #8595: mapped_region::flush - invalid interpretation of async parameter (win32)
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2013-05-20 09:15:13

#8595: mapped_region::flush - invalid interpretation of async parameter (win32)
---------------------------------------+------------------------------------
 Reporter:  voropaev_sg@…              |       Owner:  igaztanaga  
     Type:  Bugs                       |      Status:  new         
Milestone:  To Be Determined           |   Component:  interprocess
  Version:  Boost 1.53.0               |    Severity:  Problem     
 Keywords:  flush async                |  
---------------------------------------+------------------------------------
 We had serious performance problem after transfer to boost version 1.53.
 The reason - bug in processing of "async" parameter of
 '''mapped_region::flush''' (windows version).
 {{{
    else if(async && m_file_or_mapping_hnd != winapi::invalid_handle_value
 &&
            winapi::get_file_type(m_file_or_mapping_hnd) ==
 winapi::file_type_disk)
   {
       return winapi::flush_file_buffers(m_file_or_mapping_hnd);
   }
 }}}
 So if '''async = true''' then '''flush''' function works in synchronous
 mode. I think the code must be:

 {{{
 else if(!async && ....

 }}}

 Sergey Voropaev

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/8595>
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