Bug fix
Description:
Retrieving an object's name could fail (in various ways) under certain
circumstances (mostly having to do with mounted files).
Solution:
Re-write & simplify "get object name" code to fix error in a better way
than adding yet another hack to the previous pile of hacks... :-)
Platforms tested:
FreeBSD 4.11 (sleipnir)
h5committest
Unstable format version marker.
Description:
This marks the Check in baseline for compact group revisions,
which radically revises the source code for managing groups and object headers.
Earlier versions (1.7.52 or earlier) have the original format. This version
and later have the unstable format until further notice.
Platforms tested:
h5committested.
New feature
Description:
Check in baseline for compact group revisions, which radically revises the
source code for managing groups and object headers.
WARNING!!!! WARNING!!!! WARNING!!!! WARNING!!!! WARNING!!!! WARNING!!!!
WARNING!!!! WARNING!!!! WARNING!!!! WARNING!!!! WARNING!!!! WARNING!!!!
This initiates the "unstable" phase of the 1.7.x branch, leading up
to the 1.8.0 release. Please test this code, but do _NOT_ keep files created
with it - the format will change again before the release and you will not
be able to read your old files!!!
WARNING!!!! WARNING!!!! WARNING!!!! WARNING!!!! WARNING!!!! WARNING!!!!
WARNING!!!! WARNING!!!! WARNING!!!! WARNING!!!! WARNING!!!! WARNING!!!!
Solution:
There's too many changes to really describe them all, but some of them
include:
- Stop abusing the H5G_entry_t structure and split it into two separate
structures for non-symbol table node use within the library: H5O_loc_t
for object locations in a file and H5G_name_t to store the path to
an opened object. H5G_entry_t is now only used for storing symbol
table entries on disk.
- Retire H5G_namei() in favor of a more general mechanism for traversing
group paths and issuing callbacks on objects located. This gets us out
of the business of hacking H5G_namei() for new features, generally.
- Revised H5O* routines to take a H5O_loc_t instead of H5G_entry_t
- Lots more...
Platforms tested:
h5committested and maybe another dozen configurations.... :-)
New feature
Description:
Add in baseline "object copy" code from Peter [in the form of a new API
routine: H5Gcopy()]. There's still some work to do (like handling variable-
length datatypes and possibly support for references) and it hasn't been tested
on mounted files yet, but the core functionality is there and working
correctly.
I've also got a set of patches to update the 1.6 branch with tweaks to
keep the branches mostly in sync, but Elena will kill me if I import them
before the 1.6.5 release is out... :-)
Platforms tested:
FreeBSD 4.11 (sleipnir)
h5committested
Updated RELEASE.txt
Description:
Mentioned that h5c++ and h5fc now support linking against shared libraries.
Platforms tested:
documentation change only
Bug fix
Description:
Fix "double root open" bug and apply same fix to datasets & named datatypes.
Also fix bug in symbol table entry lookup code that would "transfer" an
object from one file handle to another file handle when the two file handles
were opened on the same actual file.
Platforms tested:
FreeBSD 4.11 (sleipnir)
Too minor to require h5committest
Updated release notes
Description:
Mentioned that shared C++ and Fortran libraries are supported in
INSTALL and RELEASE.txt.
Platforms tested:
documentation change only
Description: Added support for "big" REAL and DOUBLE PRECISION types.
Solution:
Platforms tested: heping with g95 (-r8, -d8)
mir with ifc (-r16, -r8)
Misc. update:
Purpose:
Add the known problem for IRIX6.5 C version >7.4.
Description:
Somehow SGI's MPI implementation doesn't free MPI_TYPE_entries,
So for large application to use MPI derived datatype, environment
variable MPI_TYPE_MAX needs to be reset.
Solution:
Platforms tested:
Misc. update:
Code cleanup & speedup
Description:
Refactor h5dump & related code to be considerably cleaner & faster for
files with large #'s of objects.
Platforms tested:
FreeBS 4.11 (sleipnir)
Linux 2.4
Bug fix
Description:
Fix core dump when checking whether to invalidate the name of an object
when unlinking an object in a group opened through an object reference.
Solution:
Check if names of various objects are valid before comparing them, etc.
Platforms tested:
FreeBSD 4.11 (sleipnir)
Too minor to require h5committest
Add more comments for collective chunk IO supports.
Description:
On some platforms that use mpich library internally, we have no way to check mpich version number. We have to manually turn off the collective IO supports.
One example is Altix(cobalt). Just put a comment there so that we won't forget about this.
Solution:
Platforms tested:
Misc. update:
Description:
Added missing member functions:
H5::CompType::getMemberArrayType
H5::CompType::getMemberVarLenType
H5::AbstractDs::getArrayType
H5::AbstractDs::getVarLenType
H5::CommonFG::openArrayType
H5::CommonFG::openVarLenType
H5::PropList::copyProp -- this will replace the current
H5::PropList::copyProp in later releases due
to incorrect prototype.
H5::IdComponent::getHDFObjType
Bug fix
Description:
Correct problems when querying information about a group that was opened
by dereferencing an object reference.
Solution:
Read in symbol table information instead of rely on it being cached.
Platforms tested:
FreeBSD 4.11 (sleipnir)
Too minor to require h5committest
Bug fix
Description:
If a named datatype is copied and the copy is used to create a dataset,
the dataset would inadvertantly refer to the original named datatype instead
of a local (possibly modified) copy of the named datatype.
Solution:
Fixed datatype copying routine.
Platforms tested:
FreeBSD 4.11 (sleipnir)
Too minor to require h5committest
Bug fix
Description:
Further progress on fixing file mounting to work properly.
Platforms tested:
FreeBSD 4.11 (sleipnir)
Linux 2.4
Too minor to require h5committest
Description: There was a bug in the calculating code of the Fletcher32
checksum in the library before v1.6.3. The checksum value wasn't consistent
between big-endian and little-endian systems. This bug was fixed in
Release 1.6.3. However, after fixing the bug, the checksum value is no
longer the same as before on little-endian system.
Solution: Made the library compare both the correct checksum and incorrect
checksum generated from v1.6.2 or before. This makes the library be
backward compatible but not forward compatible.
Platforms tested: h5committest and fuss.
Misc. update: Documented the forward incompatibility problem in the
Known Problem section in RELEASE.txt
Bug fix & code cleanup
Description:
Don't unmount child files from a parent file if the parent file is
being held open by an object.
Also, moved the mounting routines into their own source file and the
superblock routines into their own file also.
Solution:
Moved the code for unmounting child files down in the H5F_close routine
and also add checks to the file and group mounting code to unmount child
files when the last object holding open a file closes.
Platforms tested:
FreeBSD 4.11 (sleipnir)
h5committest
Bug fix
Description:
Fixed bugs that caused tests to be unable to find testhdf5.sh during
daily tests, and another that broke sol and shanti.
Solution:
When tests are run, their path is ./$testname .
When scripts are run, their path has no leading "./". Fixed.
Sol and shanti don't recognize the -e option for test, but they do know
-f. Fixed.
Also modified release notes.
Platforms tested:
mir, shanti, heping
Bug fix
Description:
When a series of files is mounted on one another and one of those files
is not unmounted, the library gets confused at shutdown and goes into an
infinite loop in the file interface.
Solution:
If there are still files left in the "closing" state when shutting down
the file API, iterate over those file IDs and unmount any child files that we
find mounted on those files.
Platforms tested:
FreeBSD 4.11 (sleipnir)
Too minor to require h5committest
