Hi Mark/Adam,
The "file image" feature is available in the upcoming 1.8.9 release,
which has a prerelease candidate available here:
http://www.hdfgroup.uiuc.edu/ftp/pub/outgoing/hdf5/hdf5-1.8.9-pre1/
Quincey
On Apr 24, 2012, at 2:53 PM, Mark Miller wrote:
> Ah, that capability also exists but not in a currently released version
> of HDF5. I think it is available in HDF5-1.9 series. Maybe someone from
> HDF Group could point you in the right direction. Also, have a looksee
> here...
>
> https://visitbugs.ornl.gov/attachments/66/load_core_file_driver_from_image_RFC_v04.pdf
>
> Hopefully, Quincy Koziol might be able point you to actual HDF5 version
> tarball supporting this.
>
> Mark
>
> On Tue, 2012-04-24 at 12:45 -0700, Adam Wierzchowski wrote:
>> Hi,
>> thank you. Exactly what I needed. But what about reading these data. I
>> need something like:
>> H5Fcreate...
>> H5InitializeWithRawBytesFromMemory(void* dataPointer, int
>> dataLengthInBytes)
>>
>> regards
>> Adam
>>
>> MM> If I am understanding you correctly, you can do that using the 'core'
>> MM> virtual file driver (VFD). Have a look at...
>>
>> MM> http://www.hdfgroup.org/HDF5/doc/RM/RM_H5P.html#Property-SetFaplCore
>>
>> MM> You need to create a file-access or file-creation properties list object
>> MM> with appropriate values set for the core VFD and it should behave as you
>> MM> describe.
>>
>> MM> Good luck.
>>
>> MM> Mark
>>
>> MM> On Tue, 2012-04-24 at 06:55 -0700, Adam Wierzchowski wrote:
>>>> Hi,
>>>> I have my custom format where I keep all kinds of data: strings, arrays
>>>> etc. I'd also like to keep chunk of data which is basically whole hdf
>>>> file. Is it possible?
>>>> Idea is to keep hdf5 file in memory and dump all that data to my file.
>>>> When reading just read all that data to memory and read from it with
>>>> hdf5 functions. Problem is that haven't found functions which will allow
>>>> me to do that in hdf5 docs.
>>>>
>>>> hope you can help me
>>>> regards
>>>> Adam
>>>>
>>>> _______________________________________________
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>>
>>
>> _______________________________________________
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> --
> Mark C. Miller, Lawrence Livermore National Laboratory
> ================!!LLNL BUSINESS ONLY!!================
> [email protected] urgent: [email protected]
> T:8-6 (925)-423-5901 M/W/Th:7-12,2-7 (530)-753-8511
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>
> _______________________________________________
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