Bug fix
Description:
Correct possible core dump when a datatype conversion function is
registered with the library after a compound datatype has been converted
(having it's type conversion information cached by the library). The compound
datatype must have been created by inserting the fields in non-increasing
offset order to see the bug.
Solution:
Re-sort the fields in the compound datatypes before recalculating the
cached information when performing the conversion on them.
Platforms tested:
FreeBSD 4.10 (sleipnir)
h5committested
Feature
Description:
Added a feature such that if the test name starts with '-', do not run it
by default.
Platforms tested:
Eirene both serial and parallel.
Misc. update:
Code cleanup
Description:
At user's suggestion, convert some "naked" standard library calls to use
the HD*() macros.
Platforms tested:
FreeBSD 4.10 (sleipnir)
Too minor to require h5committest
Purpose: Small bug fix
Description: When SZIP filter is present but encoding is not enabled
test_misc21 and h5repack tests failed.
Solution: Those tests should not run in this situation at all.
Used conditonal compilation to disable the tests.
Platforms tested: sol (today I will enable the daily tests with the szip library
that doesn't have encoder for few other platforms)
Misc. update:
Code cleanup
Description:
Various minor tweaks to clean code up and bring it into closer
syncronization with the release branch.
Platforms tested:
FreeBSD 4.10 (sleipnir) w/parallel
h5committested
IRIX64 6.5 (modi4)
Bug fix.
Description:
Address two problems:
- The computation of the scanline in the szip filter was being
performed in the "can apply" callback routine instead of the
"set local" routine.
- The routine which allocated all the chunks for an entire dataset
(which is invoked when the allocation time is early or late,
rather than incremental) wasn't recording a failed filter in
the information for the chunk, causing the library to believe
that the chunk had the filter applied when it really hadn't.
Solution:
- Move the scanline computation to the "set local" callback.
- Record the filter mask with each chunk created when allocating them.
Platforms tested:
FreeBSD 4.10 (sleipnir) w/szip
Too obscure to require h5committest
Revise new feature
Description:
Add buffer type and version # bytes to the encoded datatype and dataspace
buffers (for H5Tencode & H5Sencode)
Platforms tested:
FreeBSD 4.10 (sleipnir)
Too minor to require h5committest
Bug fix
Description:
Allow I/O on extendible chunked datasets with (currently) zero-sized
dimensions to proceed harmlessly instead of dumping core on an assertion.
Solution:
Removed assertion and added checks to avoid problem situation in H5TB_end
Platforms tested:
FreeBSD 4.10 (sleipnir) w/ & w/o parallel
Too minor to require h5committest
Bug fix
Description:
Always write fill values to chunks when initializing entire B-tree and
any filters are defined.
Platforms tested:
FreeBSD 4.10 (sleipnir) w/parallel
Solaris 2.7 (arabica)
Too minor to require h5committest
Purpose:
Bug fix
Description:
When a simple dataspace is created, its extent should be set before using it,
or it will silently function as a NULL dataspace.
Solution:
Added checks on user-supplied dataspaces. Now dataspaces without extents set
will throw errors; users must explicitly set a dataspace to be NULL.
Platforms tested:
sleipnir, windows
Purpose:
Bug fix
Description:
Modification time test (mtime) would die silently on some systems. This is
because the code is very system-dependant (it relies on getting the current
time and the timezone from the OS).
Solution:
mtime test now uses TEST_ERROR macro to print "FAILED" and to output where the
failure occurred. Configure script is a little smarter about whether
gettimeofday() function returns the timezone correctly.
Further bugs will need to be addressed on a system-by-system basis.
Platforms tested:
sleipnir, arabica, verbena, copper, windows (VC7)
Code cleanup
Description:
Fixed reserved.c test to use h5_fileaccess/h5_fixname/h5_cleanup.
Updated RELEASE.txt for previous bug fix
Platforms tested:
sleipnir, verbena
Description: This is the second step of checkin for encoding and decoding objects.
H5Tencode and H5Tdecode have been committed in the previous step. H5Sencode
and H5Sdecode are checked in this time.
Solution: Given object ID, these functions encode and decode object information
into and from binary buffer and return new object ID. They take advantage of the
existing codes of object header message and encode in the same format.
Platforms tested: fuss and h5committest.
Misc. update: RELEASE.txt
Purpose: Improvement
Description: HDF5 Library set pixels_per_scanline parameter to the size of the chunk's
fastest changing dimension. As a result, fastest changing dimension
of the chunk could not be bigger than 4K and smaller than pixels_per_block
value and szip compression couldn't be used for many real datasets.
Solution: Reworked algorithm how HDF5 sets pixels_per_scanline value; only chunks
with the total number of elements less than pixels_per_block value are rejected.
There is no restriction on the size of the chunk's fastest changing
dimension anymore.
Modified the test according to the new algorithm.
Platforms tested: verbena, copper, sol
Misc. update:
Bug fix
Description:
Allow buffer parameter to H5Dread & H5Dwrite to be NULL if there are no
elements to transfer.
Platforms tested:
FreeBSD 4.10 (sleipnir) w/parallel
Too minor to require h5committest
Purpose:
Bug Fix
Description:
Calling H5Sset_extent_simple to change a dataspace's maxdims from nonzero to
zero causes errors (infinite loops, seg faults, asserts) because the pointer
to the maximum size isn't cleaned up properly
Solution:
Clean up that pointer. Added a test for this case.
Platforms tested:
sleipnir (very minor change)
Purpose:
Bug Fix
Description:
Trying to create the root group or the working group ("/" or ".") fakes out
HDF5 so that it neither creates a group nor returns an error.
Solution:
H5G_namei now throws an error if it was supposed to insert but didn't.
Platforms tested:
sleipnir, Visual Studio 7 (very minor change)
Misc. update:
Code cleanup
Description:
Clean up a bunch of warnings and bring new code better inline with current
library coding practice.
Platforms tested:
FreeBSD 4.10 (sleipnir) w/parallel
Too minor to require h5committest
Misc. update:
Purpose:
Bug fix
Description:
Replaced "unsigned long long" with hsize_t in H5MF
Added "return 0" at end of reserved.c test
Platforms tested:
arabica, sleipnir
Purpose: New feature
Description: New API H5Tencode and H5Tdecode. Given object ID, H5Tencode encodes object information into a binary form. H5Tdecode decode an object information in a binary form, reconstructs the object and return a new object ID.
Solution: Use object header functions H5O_dtype_decode and H5O_dtype_encode to
facilitate them. The encoded binary is exactly like object header information.
This is the first step checkin. Will check in H5Sencode and H5Sdecode later.
Platforms tested: h5committed and fuss.
Misc. update: will update release.txt after 2nd step checkin.
Purpose:
Bug Fix
Description:
If an HDF5 file grows larger than its address space, it dies and is unable to
write any data. This is more likely to happen since users are able to change
the number of bytes used to store addresses in the file.
Solution:
HDF5 now throws an error instead of dying. In addition, it "reserves" address
space for the local heap and for object headers (which do not allocate space
immediately). This ensures that after the error occurs, there is enough address
space left to flush the entire file to disk, so no data is lost.
A more complete explanation is at /doc/html/TechNotes/ReservedFileSpace.html
Platforms tested:
sleipnir, copper (parallel), verbena, arabica, Windows (Visual Studio 7)
Solution:
Platforms tested:
Misc. update:
Bug fix
Description:
Correct problems with "resurrecting" a dataset in a file. (This occurs
when a dataset which is open gets unlinked from the group hierarchy (making it
"dead" and marked for deletion in the file) and then is re-linked to the group
hierarchy). Note that the current solution applies only to datasets, further
work will fix this for groups and named datatypes also.
Also, fix the "debug" routines to be a little more helpful in certain
situations.
Additionally, fix a locking bug in the symbol table node splitting routine
which could be [one of] the cause[s] of the file corruption in flexible
parallel operation.
Platforms tested:
FreeBSD 4.10 (sleipnir) w/parallel
h5committested
Bug fix
Description:
The "shared" raw B-tree node can get freed before all the B-tree nodes
had been flushed out to disk and released by the cache.
Solution:
Implement a simple reference counting wrapper for objects in the library
and use it to hold the shared raw B-tree nodes so they aren't freed before all
references to them in memory are released.
Platforms tested:
Solaris 2.7 (arabica)
FreeBSD 4.10 (sleipnir)
IRIX64 6.5 (modei4)
Purpose: Potential bug fix
Description: In H5Fget_filesize, file size was returned as haddr_t. Change it to hsize_t
and return it as parameter to make fortran interface easier.
Platforms tested: fuss(simple change).
Code optimization
Description:
Set up datatype ID for dataset's datatype on disk. This allows us to avoid
repeatedly copying the datatype when an ID is needed.
Also, clean up a few warnings in various other places.
Platforms tested:
Solaris 2.7 (arabica)
FreeBSD 4.10 (sleipnir) w/parallel
Too minor to require h5committest
Code cleanup
Description:
Fix problems when compiling with C++ compiler.
Also clean up some warnings with gcc 3.4.x
Platforms tested:
FreeBSD 4.10 (sleipnir)
Too minor to require h5committest
Description:
Replaced the old metadata cache with a cache with a modified LRU
replacement policy. This should improve the hit rate.
Solution:
Since we want to flush cache entries in increasing address order, I
used the threaded binary B-tree code to store the cache entries.
There is a fair bit of overhead here, so we may want to consider
other options.
While the code is designed to allow the support of other replacement
algorithms, at present, only a modified version of LRU is supported.
The modified LRU algorithm requires that a user selectable portion
of the cache entries be clean. The clean entries are evicted first
when writes are not permitted. If the pool of clean entries is used
up, the cache grows beyond its user specified maximum size. The
cache can also exceed its maximum size if the combined size of the
protected (or locked) entries exceeds the maximum size of the cache.
Platforms tested:
eirene (serial, parallel, fp), h5committested
Misc. update:
Code cleanup
Description:
Clean up almost all warnings from Windows builds.
Platforms tested:
FreeBSD 4.10 (sleipnir) w/parallel
Too minor to require h5committest
Purpose:
HDF5 now supports SZIP with no encoder.
Description:
SZIP can be configured to have both encoder and decoder or just to have the decoder. HDF5 can now query the configuration of any filter, and will throw errors if users try to write using a filter with encoding disabled.
Solution:
Added H5Zget_filter_info function, changed API for H5Pget_filter and H5P_get_filter_by_id. See SZIP RFC.
Platforms tested:
Copper (fortran, C++, parallel), Sleipnir (C++), Arabica (fortran, C++), Verbena (fortran, C++)
Misc. update:
Bug fix
Description:
Correct use of H5Eprint() when 1.6 compatibility is turned on.
Platforms tested:
FreeBSD 4.10 (sleipnir) w/compatibility
h5committest doesn't test this, so it wasn't run.
Purpose:
Needed to change the type of a variable in tid.c from int to hsize_t to
accomodate the change in H5Inmembers.
Description:
I lied... this is the last commit. Really, it is.
Solution:
Platforms tested:
Misc. update:
Purpose:
Small H5I API changes.
Description:
Changed public version of H5Inmembers to return the number of IDs in a
type by reference. This allows the user to differentiate between the
case when H5Inmembers has an error and when the ID type is just empty.
Added a new API function, H5Itype_exists, which allows the user to
find out whether an ID type exists or not, without throwing an error.
Solution:
Platforms tested:
Copper
Misc. update:
Description: Added new API H5Fget_name and new test program called filename.c. This function
returns the name of the file by object ID(file, group, dataset, named datatype, and attribute)
which belongs to the file.
Platforms tested: h5committest and fuss.
Misc. update: MANIFEST and RELEASE.txt
Code cleanup & small bug fix
Description:
Regenerate dependency files
Add htri_t as separate type from hbool_t for code tracing purposes.
Platforms tested:
FreeBSD 4.10 (sleipnir) w/parallel
too minor to require h5committest
Code cleanup
Description:
Reduce compiler warnings on SGI IRIX
Platforms tested:
FreeBSD 4.10 (sleipnir)
SGI IRIX6 (Cheryl's machine)
Too minor to require full h5committest
Code optimization
Description:
Use 'size_t' instead of 'hsize_t' to track the number of elements in
memory buffers, especially for type conversion.
Platforms tested:
Solaris 2.7 (arabica)
FreeBSD 4.10 (sleipnir) w/parallel
Too minor to require h5committest
Code cleanup
Description:
Add more files that should be removed to the clean & distclean targets.
Platforms tested:
FreeBSD 4.10 (sleipnir)
Too minor to require h5committest
