[Hdf-forum] accessing low level file descriptor or handle

[Mark Miller]

Awsome! Thanks much. I guess I should have RTFM but I'm in a bit of a
crunch for time. 

Mark

On Wed, 2010-01-06 at 16:21 -0600, Raymond Lu wrote:
> Mark,
> 
> There's an API function
> 
>     /herr_t /|H5Fget_vfd_handle|(/hid_t/ |file_id|, /hid_t/ |fapl_id|, 
> /void **/|file_handle| )
> 
> for this purpose.  You can find it in the v1.8 Reference Manual:
> 
>     http://*www.*hdfgroup.org/HDF5/doc/RM/RM_H5F.html#File-GetVfdHandle
> 
> Thanks.
> 
> Ray
> 
> Mark Miller wrote:
> > Hi All,
> >
> > H5FOpen returns an opaque hid_t for the file. What if I need to get in
> > there and fiddle with the file properties via fcntl interface? Is there
> > any way for me to get access to the underlying stream or file
> > descriptor? At this point, I don't really care if its 'nice' and
> > portable and proper. I just need a way to get at it for standard VFD's
> > such as SEC2 or STDIO.
> >
> > Mark
> >
> >   
> 
> 
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-- 
Mark C. Miller, Lawrence Livermore National Laboratory
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