[hdf-forum] provenance

[Dimitris Servis]

As far as I remember there is no time written in the file. the first thing
that is written after the user block is the signature of the superblock. I
think Matthew should use OS functions to check the times Werner described.

2009/3/24 Dougherty, Matthew T. <matthewd at bcm.tmc.edu>

>  thanks, Werner.
>
> not sure what access time means, or the difference between modification
> time and change time.
>
> I would guess the modified time is the latest, and previous times are not
> kept.
>
>
> Matthew Dougherty
> 713-433-3849
> National Center for Macromolecular Imaging
> Baylor College of Medicine/Houston Texas USA
> =========================================================================
> =========================================================================
>
>
>
>
> -----Original Message-----
> From: Werner Benger [mailto:werner at cct.lsu.edu <werner at cct.lsu.edu>]
> Sent: Tue 3/24/2009 2:00 AM
> To: Dougherty, Matthew T.; hdf-forum at hdfgroup.org
> Subject: Re: [hdf-forum] provenance
>
> Each object in an HDF5 file should have its own "birth time, modified
> time, change
> time, access time":
>
> http://www.hdfgroup.org/HDF5/doc/RM/RM_H5O.html#Object-GetInfo
>
> Not sure how far this is stored in the file as well; I guess an "access
> time"
> would not work well for a read-only file.
>
>         Werner
>
> On Tue, 24 Mar 2009 00:38:37 -0500, Dougherty, Matthew T.
> <matthewd at bcm.tmc.edu> wrote:
>
> > when an hdf file is created, are there any unique metadata embedded into
> > the file, such as a date?
> >
> >
> >
> > Matthew Dougherty
> > 713-433-3849
> > National Center for Macromolecular Imaging
> > Baylor College of Medicine/Houston Texas USA
> > =========================================================================
> > =========================================================================
> >
> >
>
>
>
> --
> ___________________________________________________________________________
> Dr. Werner Benger <werner at cct.lsu.edu>               Visualization
> Research
> Laboratory for Creative Arts and Technology (LCAT)
> Center for Computation & Technology at Louisiana State University (CCT/LSU)
> 239 Johnston Hall, Baton Rouge, Louisiana 70803
> Tel.: +1 225 578 4809                        Fax.: +1 225 578-5362
>
>
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