Ok, that makes sense to me. Thanks for the quick response. Mark
From: Mohamad Chaarawi <[email protected]<mailto:[email protected]>> Reply-To: HDF Users Discussion List <[email protected]<mailto:[email protected]>> Date: Friday, August 8, 2014 2:32 PM To: HDF Users Discussion List <[email protected]<mailto:[email protected]>> Subject: Re: [Hdf-forum] RFC to replace H5Fis_hdf5 with a new routine Hi Mark, From: Hdf-forum [mailto:[email protected]] On Behalf Of Miller, Mark C. Sent: Friday, August 08, 2014 4:00 PM To: HDF Users Discussion List Subject: Re: [Hdf-forum] RFC to replace H5Fis_hdf5 with a new routine Would have been nice to have this a few years ago when developing a custom VFD for Silo. That said, I am not sure how much more you are offering here if caller has to tell HDF5 lib which VFD to do. I mean, if Silo can produce its files with sec2, family, multi-part, or custom VFD, thats 4 different vfds I have to try. I do agree that it is not very convenient/useful to have the application specify the access properties (VFDs, VOLs, and other properties). This routine is more of a bug fix, rather than a super new functionality offering :). It might be easy to cycle through VFDs like the sec2 driver, but others would not be straightforward, especially if it is a custom VFD, without knowing some driver specific information/parameters used to create the file. The VOL layer is another thing to take into account. So I do not see a straightforward way to do what you are asking for. Is there much value added in this routine over simply attempting H5Fopen using different fapls and taking first that succeeds? Not much, but the internal implementation can do something smarter than going through the entire H5Fopen()/H5Fclose() stack, for example (in the native implementation) call directly the driver open routine. Thanks, Mohamad Mark From: Mohamad Chaarawi <[email protected]<mailto:[email protected]>> Reply-To: HDF Users Discussion List <[email protected]<mailto:[email protected]>> Date: Friday, August 8, 2014 1:52 PM To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Subject: [Hdf-forum] RFC to replace H5Fis_hdf5 with a new routine Hi All, I attached a RFC to deprecate H5Fis_HDF5() and add a new routine to replace it named H5Fis_accessible. Please let me know if you have any comments/questions/opinions. Thanks, Mohamad
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