Re: [Boost-bugs] [Boost C++ Libraries] #579: boost.iostreams file_descriptor and sharing

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #579: boost.iostreams file_descriptor and sharing
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2007-12-30 04:22:15

#579: boost.iostreams file_descriptor and sharing
-------------------------------+--------------------------------------------
  Reporter:  nobody            |       Owner:  turkanis 
      Type:  Support Requests  |      Status:  closed   
 Milestone:                    |   Component:  iostreams
   Version:  None              |    Severity:  Problem  
Resolution:  fixed             |    Keywords:           
-------------------------------+--------------------------------------------
Changes (by turkanis):

  * status:  assigned => closed
  * resolution:  None => fixed

Comment:

 1. I don't remember why I originally set the share mode to 0; I think it
 may have been that more permissive settings caused tests to fail on some
 platforms. I have now set the mode to FILE_SHARE_READ | FILE_SHARE_WRITE,
 following the microsoft implementation of fopen (see, e.g., "Microsoft
 Visual Studio 8/VC/crt/src/fopen.c"), and the relevant tests pass on all
 my compilers, so I am committing the change ([42357])

 2. The third parameter to file_descriptor::open is for internal use only.
 file_descriptors always open files in read-write mode; to open a file in
 read-only mode, use file_descriptor_source. (I'm not sure this was a good
 design choice, but changing it now will break existing code.)

-- 
Ticket URL: <http://svn.boost.org/trac/boost/ticket/579#comment:17>
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