| Commit message (Collapse) | Author | Age | Files | Lines |
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Bug fix
Description:
When several level deep nested compound & VL datatypes are used, the data
in the nested compound datatypes is incorrectly sharing the same "background
buffer", causing data corruption when the data is written to the file.
Solution:
Allocate a separate background buffer for each level of the nested types
to convert. (Also allocate temporary background buffers for array
datatypes, where this sort of problem could occur also)
Added more regression tests to check for these errors.
Platforms tested:
FreeBSD 4.5 (sleipnir) & Solaris 2.6 (baldric)
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Purpose:
added description of H5Dset_extent
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Purpose:
New feature
Description:
Fill-value's behaviors for contiguous dataset have been redefined.
Basicly, dataset won't allocate space until it's necessary. Full details
are available at http://hdf.ncsa.uiuc.edu/RFC/Fill_Value, at this moment.
Platforms tested:
Linux 2.2.
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New Feature
Description:
Added new H5Dfill() routine to fill the elements in a selection for a
memory buffer with a fill value. This is a user API wrapper around some
internal routines which were needed for the fill-value modifications
from Raymond as well as Pedro's code for reducing the size of a chunked
dataset.
Platforms tested:
FreeBSD 4.5 (sleipnir) [and IRIX64 6.5 (modi4) in parallel, in a few
minutes]
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Purpose:
New feature
Description:
Added a query function H5Tget_member_index for compound and enumeration
data types, to retrieve member's index by its name.
Platforms tested:
Linux 2.2
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Bug Fix & Code Cleanup
Description:
The MPI-IO optimized transfer routines
(H5S_mpio_spaces_read/H5S_mpio_space_write) are not being invoked in all
the cases where they could be used.
Additionally, the code for determining if an optimized transfer is wrapped
into the actual I/O transfer routine in a very confusing way.
Solution:
Re-enabled MPI-IO optimized transfer routines in all the cases where they
should work.
Extracted all the pre-conditions for optimized transfers into separate
routines from the transfer routines.
Platforms tested:
FreeBSD 4.5 (sleipnir) & IRIX64 6.5 (modi4)
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Bug Fix & Feature
Description:
The selection offset was being ignored for optimized hyperslab selection
I/O operations.
Additionally, I've found that the restrictions on optimized selection
I/O operations were too strict and found a way to allow more hyperslabs
to use the optimized I/O routines.
Solution:
Incorporate the selection offset into the selection location when performing
optimized I/O operations.
Allow optimized I/O on any single hyperslab selection and also allow
hyperslab operations on chunked datasets.
Platforms tested:
FreeBSD 4.5 (sleipnir)
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Purpose:
Bug fix(#697)
Description:
Variable-length string is not treated as string.
Solution:
Added character set and padding as VL string's attributes. They can be
set and retrieved.
Platforms tested:
Solaris 8, IRIX64 6.5 parallel, and FreeBSD.
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Doc Change
Description:
Documented the fix for the 1024 byte object name limitation...
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Update release notes
Description:
Document H5Gget_objinfo() bug fix (fixes bug #732)
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Update release notes.
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Windows support
Description:
Added the install file to 1.5 specifically for C++ API on Windows.
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Bug Fix
Description:
If a non-zero fill-value is used for a chunked dataset, any non-existent
chunked read with an "all" selection (or a contiguous hyperslab selection)
will return zero for those instead of the user's fill-value.
Solution:
Fixed I/O code to pass down fill-value to "optimized" I/O routines, so it
will be available to fill the user's buffer with.
Platforms tested:
FreeBSD 4.5 (sleipnir)
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Update readme for latest bug fix
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Feature add
Description:
Added note about a new API function.
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Code speedup
Description:
Chunking I/O routines are reading in an entire chunk when performing I/O
on the chunk, even if the chunk will be too large to cache.
Solution:
If the chunk is too large to cache, uncompressed and has been allocated
space in the file, or if we are using the MPI-I/O VFD, perform the I/O
directly to the chunk, instead of reading the chunk into memory, updating
it and immediately writing the entire chunk back out.
Platforms tested:
FreeBSD 4.5 (sleipnir) (using serial access) and IRIX64 6.5 (modi4) (using
parallel access with MPI-I/O)
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Bug Fix
Description:
When file space was returned to the file space free-list for reuse,
occasionally raw data allocations which used space from the free-list
would overlap with the metadata accumulator and get over-written with
the cached information in the accumulator, corrupting the data.
Solution:
Check if the space about to be recycled on the free-list is going to be
used for raw data and also overlaps with the metadata accumulator cache,
avoiding using space that fits those criteria.
This fixes bug #701
Platforms tested:
FreeBSD 4.5 (sleipnir)
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Document bug
Description:
Mention that h5dump and h5ls are not displaying variable-length string
datatype information correctly. I've also entered a more detailed bug into
the bug database.
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Update release notes.
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Purpose:
Doc
Description:
Added that we support PHDF5 on Hp-UX11.
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Bug Fix.
Description:
The H5Rget_object_type function could not get the object type for dataset
region references.
Solution:
Added a new function, H5Rget_obj_type, to replace H5Rget_object_type.
The new function requires the reference type as an additional parameter,
in order to allow queries on different reference types to be performed
correctly.
Platforms tested:
FreeBSD 4.4. (sleipnir)
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Bug Fix
Description:
Document bug fix.
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Purpose:
Update
Description:
New feature of file close behavior.
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Code cleanup
Description:
Tweaked internal error handling macros to reduce the size of the library's
object code by about 10-20%.
Also cleaned up some compiler warnings...
Platforms tested:
FreeBSD 4.4 (sleipnir)
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Bug Fix
Description:
The file metadata macros generate unaligned access warnings on the IA64
architecture.
Solution:
Got rid of bogus big-endian vs. little-endian differentiation when encoding
and decoding file metadata and use proper set of macros to prevent unaligned
access problems.
This fixes bug #672.
Platforms tested:
FreeBSD 4.4 (sleipnir)
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Bug Fix
Description:
The code in H5Sselect_hyperslab_valid contained an fencepost error and is
allowing selections which overlap the extent by exactly one element in any
dimension to pass as valid instead of flagging the selection as invalid.
This bug only affects hyperslabs which have been OR'ed together, not the
selection from a single H5Sselect_hyperslab.
This fixes bug #550.
Solution:
Changed an '>' to an '>=' and added new regression test to check for error.
Platforms tested:
FreeBSD 4.4 (sleipnir)
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Code cleanup
Description:
Property that H5P(g|s)et_hyper_cache uses is no longer in use inside the
library.
Solution:
Removed H5P(g|s)et_hyper_cache API functions, except when backward
compatibility is turned on. When backward compatibility is turned on,
the property is defined by the library, but unused internally.
Platforms tested:
FreeBSD 4.4 (sleipnir)
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Update document
Description:
Note a big fix that didn't make it into the document when the bug fix code
was checked in.
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Document bug fix.
Description:
The internal B-tree code was dumping core with an assertion failure when
flushing data to the file if too many objects were put into the same B-tree
(forcing the root node to split, I think).
Solution:
Fixed the B-tree copy routine to copy the correct number of raw keys.
Platforms tested:
FreeBSD 4.4 (hawkwind), Solaris 2.6 (baldric)
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Documentation
Description:
Mention improvements to I/O speed for non-regular hyperslabs.
Hold off mentioning new API calls until we've reached consensus on them.
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Document bug fixes.
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Purpose:
add new information and delete old windows and h4toh5 information on release.txt.
Description:
1. add a note to mention release dll will work after installing service pack 5 of VS6.0.
2. delete the fixed bugs on windows(libc.lib warnings and h4toh5 image handlings)
Solution:
Platforms tested:
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zlib in with-hdf4 option.
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