Re: [Boost-users] File-system persistence for boost shared memory files

Subject: Re: [Boost-users] File-system persistence for boost shared memory files
From: Rajalakshmi Iyer (raj_at_[hidden])
Date: 2012-04-05 08:07:48

Is it then possible to specify a different file path (instead of
/tmp/boost_interprocess) ?

Thanks,
Raj

2012/4/5 Roman Neuhauser <neuhauser_at_[hidden]>

> # raj_at_[hidden] / 2012-04-05 12:06:29 +0100:
> > 2012/4/5 Ion Gazta?aga <igaztanaga_at_[hidden]>
> > > El 05/04/2012 10:14, Rajalakshmi Iyer escribió:
> > >> When I create shared memory files on an Ubuntu Linux host, they are
> > >> created at /var/run/shm. But on a system reboot, the shared memory
> files
> > >> go away, which means they are using kernel persistence.
> > >>
> > >> How can I ensure that shared memory files persist across reboots?
>
> [...]
>
> > > If you disable POSIX shm detection undefining
> > >
> > > BOOST_INTERPROCESS_POSIX_**SHARED_MEMORY_OBJECTS
> > >
> > > in boost/interprocess/detail/**workaround.hpp
> > >
> > > then you get shared memory emulation using memory mapped files.
>
> [...]
>
> > However, when I reboot the machine, the files created under
> > /tmp/boost_interprocess are wiped out. Is there anything additional I
> > should be doing?
>
> You should review Ubuntu documentation.  That's your system cleaning
> up the directory (or /tmp might be a memory-backed filesystem).
>
> --
> roman
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>

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