Re: [Boost-bugs] [Boost C++ Libraries] #9321: named mutex permissions are not reset after application crash

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #9321: named mutex permissions are not reset after application crash
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2013-10-30 20:50:13

#9321: named mutex permissions are not reset after application crash
-------------------------------------------------+-------------------------
  Reporter:  Marcus Ackermann                    |      Owner:  igaztanaga
  <Marcus.Ackermann@…>                           |     Status:  new
      Type:  Bugs                                |  Component:
 Milestone:  To Be Determined                    |  interprocess
   Version:  Boost 1.50.0                        |   Severity:  Problem
Resolution:                                      |   Keywords:
-------------------------------------------------+-------------------------

Comment (by igaztanaga):

 The behavior is not a bug, as the mutex is still there until you
 explicitly remove it (POSIX lifetime semantics). It's similar to files. A
 process can create a file but the second process might not have
 permissions to remove it. It might not be similar to Windows native
 reference-counted resources (when the last process holding the resource
 dies the resources is freed by the OS), but it's not a bug..

 If you need to share the mutex between processes you should put the
 appropriate permissions in the object (like the ones you need if you
 create a file). You can use unrestricted permissions instead of standard
 permissions if that doesn't cause security problems in your application.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/9321#comment:1>
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