Re: [Boost-bugs] [Boost C++ Libraries] #8470: managed_mapped_file goes to loop

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #8470: managed_mapped_file goes to loop
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2013-05-19 19:13:03

#8470: managed_mapped_file goes to loop
-------------------------------------+--------------------------------------
  Reporter:  mikhail.smal@…          |       Owner:  igaztanaga      
      Type:  Bugs                    |      Status:  reopened        
 Milestone:  To Be Determined        |   Component:  interprocess    
   Version:  Boost 1.53.0            |    Severity:  Problem         
Resolution:                          |    Keywords:  mapped file loop
-------------------------------------+--------------------------------------
Changes (by anonymous):

  * status:  closed => reopened
  * resolution:  invalid =>

Comment:

 Replying to [comment:2 igaztanaga]:
 > As explained in the documentation, managed segments have internal
 metadata, you can't start overwritting memory corrupting internal
 structures. If you really want to overrite file contents, then you should
 use file_mapping + mapped_region, see:
 >
 >
 http://www.boost.org/doc/libs/1_53_0/doc/html/interprocess/sharedmemorybetweenprocesses.html#interprocess.sharedmemorybetweenprocesses.mapped_file.mapped_file_a_simple_example


 It is a good link, but I am still not sure that the string

 '''managed_mapped_file mfile( open_or_create, "lol", 10 );'''

 should throw exception because of "10". It is not mentioned in
 '''documentation'''. And how should I do offset if '''get_address()'''
 returns the pointer to "internal metadata"?

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/8470#comment:3>
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