Re: [Boost-users] [interprocess] shared_memory_object constructor with create_only parameter

Subject: Re: [Boost-users] [interprocess] shared_memory_object constructor with create_only parameter
From: Derek Kivi (derek.kivi_at_[hidden])
Date: 2010-01-26 09:58:15

> But the second problem concerning shared_memory_object::remove(const
> char* name) is still present.
> 
> >  I realized another problem. If I call the static function
> >  shared_memory_object::remove(const char* name), the memory should be
> >  removed only when no further process has access to the memory. This
> >  seems also not to work. I did the following:
> >  1. create shared memory for writing.
> >  2. open shared memory for reading
> >  3. shared_memory_object::remove(const char* name) (from the reading
> >  process)
> >  4. reopen the shared memory for reading ->  exception: can not find
> the file
> 
> Thanks for your help and apoligizes for bothering you with my first
> problem.
> 
>    Philipp

Hi Philipp,

Check out http://www.boost.org/doc/libs/1_41_0/doc/html/interprocess/sharedmemorybetweenprocesses.html#interprocess.sharedmemorybetweenprocesses.sharedmemory.removing

If you call remove on a shared memory object, you are unable to reopen a shared memory object with that name.

Hope that helps.
Derek Kivi
ver. QuIC 0707