| Commit message (Collapse) | Author | Age | Files | Lines |
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Feature
Description:
Revised Link APIs.
Solution:
New link APIs use H5L*
H5*create_expand do not create links to the objects created; this must
be done manually with H5Llink.
Added APIs to link an object given its ID (H5Llink), to copy links (H5Lcopy),
and changed creation APIs (H5Lcreate_hard and H5Lcreate_soft) and query
API (H5Lget_linkinfo instead of H5Gget_objinfo).
All old APIs are still supported in H5Gdeprec.c .
Platforms tested:
sol, mir, copper
Misc. update:
Forgot to update MANIFEST and release docs. Will do after checkin.
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Code checkpoint
Description:
Add in more new features for the fractal heap code, mostly bringing in
more ability for deleting objects (which isn't completely working yet).
Also, checkpoint free space manager code, which is essentially complete
(although it needs some more work after the metadata cache has some additional
features)
Platforms tested:
FreeBSD 4.11 (sleipnir)
Linux 2.4 (chicago)
h5committest
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Code checkpoint
Description:
Update fractal heap code to allow objects to be deleted
Fix bugs in fractal heap object insertion
Improve free space manager code to allow sections to be merged and
shrink the container
Another try at making the Windows compilers happy...
Platforms tested:
FreeBSD 4.11 (sleipnir)
Mac OS X.4/PPC (amazon)
Linux 2.4 (chicago & heping)
Solaris 2.9 (shanti)
AIX 5.? (copper) w/parallel
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Code checkpoint
Description:
Checkpoint fractal heap improvements, as well as move the free space
manager code that it's using into a separate package.
Platforms tested:
FreeBSD 4.11 (sleipnir)
Linux 2.4/64 (mir) w/C++ & FORTRAN
Linux 2.4/32 (heping)
Solaris 2.9 (shanti)
AIX 5.? (copper) w/FORTRAN & parallel
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Add pinned entry capability to cache.
Description:
For frequently accessed cache entries, the protect/unprotect overhead
is sometimes a bottleneck.
Solution:
Allow entries to be pinned in the cache. Pinned entries can't be
evicted, but can be flushed or modified.
Platforms tested:
h5committested -- minus one small typo in test/cache.c whose fix was
tested on copper and heping only.
Misc. update:
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Bug fix
Description:
Fix missing error code from flexible parallel removal
Platforms tested:
IBM AIX (copper) w/parallel
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Code maintenance
Description:
Remove flexible parallel code
Platforms tested:
FreeBSD 4.11 (sleipnir)
Linux 2.4 (heping)
Solaris 2.9 (shanti)
Linux 2.4/64 (mir)
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Code checkpoint
Description:
Add in more fractal heap support for odd allocation patterns (entries that
are too large for various block sizes, etc.)
Broke out fractal heap code into more source code modules.
Refactored fractal heap test to make it more understandable and
maintainable for the long term.
Platforms tested:
FreeBSD 4.11 (sleipnir)
Linux 2.4 (heping)
Linux 2.4/64 (mir)
Solaris 2.9 (shanti)
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Code update
Description:
Add new minor error, for heap metadata operations.
Platforms tested:
FreeBSD 4.11 (sleipnir)
Linux 2.4 (chicago)
Mac OSX (amazon)
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Description: Yesterday, H5E_NONE_MAJOR and H5E_NONE_MINOR were added to error
API by hand.
Solution: Today, correct the change by hand with the tool hdf5/bin/make_err.
The change by hand is only in src/H5err.txt.
Platforms tested: fuss - simple change.
Misc. update:
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Description: Added H5E_NONE_MAJOR and H5E_NONE_MINOR as a major and minor
error message. Their messages are "no error", but because the old library
had them, they're added in for backward compatibility.
Platforms tested: fuss - simple change.
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Update code
Description:
Add a new error value, for later use.
Platforms tested:
FreeBSD 4.11 (sleipnir)
Too minor for full committest
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New feature
Description:
Check in initial "fractal heap" code, for supporting the group redesign.
Also, remove some remnants of the segmented heap/block tracker/B+tree code
which I didn't find during the last pass.
Platforms tested:
FreeBSD 4.11 (sleipnir)
Mac OSX (amazon)
Linux 2.4
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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.... :-)
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Code cleanup
Description:
Merge back changes from "compact group" work that improve the
infrastructure of the library and may impact others. In this round of
merging, that includes:
- Move datatype allocation into single internal routine, instead of
duplicated code that was spread out in a dozen or so places.
- Clean up guts of object header routines (H5O_*) to allow for some of
the fancieroperations that need to be performed on groups, along with
some general improvements.
- Added a new error code
- Some minor cleanups in other code....
Platforms tested:
FreeBSD 4.11 (sleipnir)
Linux 2.4
Mac OS X
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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
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Feature.
Description:
Added HSYS_ERROR macro to retrieve and push system error message to
the error stack.
Added the related H5E_SYSERRSTR error code.
This allows system error messages be shown to users too. Thus
give a better explanation of what the errors are.
Platforms tested:
h5committested.
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New feature
Description:
Add feature to modify an existing record in a B-tree
Platforms tested:
FreeBSD 4.11 (sleipnir)
Solaris 2.9 (shanti)
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Code cleanup, mostly
Description:
Remove remaining TBBT error info
Add new error code for block tracker
Platforms tested:
FreeBSD 4.11 (sleipnir)
Solaris 2.9 (shanti)
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New feature
Description:
Add new "block tracker" data structure to library, for tracking blocks of
bytes in a file. Block trackers will be used to keep track of the blocks
belonging to the soon-to-be-implemented "segmented heap" which is designed to
replace the current local & global heaps (starting with the local heap).
Block trackers will also keep track of the free space in the segmented heap
and someday could be used to track the free space in the entire HDF5 file.
They are implemented as a small header of information to cache the state
of the blocks (max & min sizes of blocks tracked, etc.) and the records of
the blocks themselves are stored in a v2 B-tree.
Platforms tested:
FreeBSD 4.11 (sleipnir)
Solaris 2.9 (shanti)
h5committest
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New feature
Description:
Allow records in internal nodes to be removed, not just records in leaf
nodes.
Platforms tested:
FreeBSD 4.11 (sleipnir)
Solaris 2.9 (shanti)
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New feature
Description:
Checkpoint v2 B-tree code after getting 2 leaf record redistribution
working and tested.
Platforms tested:
FreeBSD 4.11 (sleipnir) w/parallel
Too minor to require h5committest
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Add new internal data structure
Description:
Add an implementation of skip lists to the library (see comment in
src/H5SL.c for references to the papers describing them) as a potential
replacement for our current threaded, balanced binary tree container.
Skip lists are much simpler to implement and should be faster to use.
Also, added new error codes to release branch, so bump the minor version
number to indicate that the library is no longer perfectly compatible with
the 1.6.3 release.
Platforms tested:
FreeBSD 4.10 (sleipnir) w/parallel
Solaris 2.7 (arabica)
Too minor to require further testing (the skip lists aren't actually
used by any library code yet)
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Purpose:
Feature
Description:
Datatypes and groups now use H5FO "file object" code that was previously
only used by datasets. These objects will hold a file open if the file
is closed but they have not yet been closed. If these objects are unlinked
then relinked, they will not be destroyed. If they are opened twice (even
by two different names), both IDs will "see" changes made to the object
using the other ID.
When an object is opened using two different names (e.g., if a dataset was
opened under one name, then mounted and opened under its new name), calling
H5Iget_name() on a given hid_t will return the name used to open that hid_t,
not the current name of the object (this is a feature, and a change from the
previous behavior of datasets).
Solution:
Used H5FO code that was already in place for datasets. Broke H5D_t's, H5T_t's,
and H5G_t's into a "shared" struct and a private struct. The shared structs
(H5D_shared_t, etc.) hold the object's information and are used by all IDs
that point to a given object in the file. The private structs are pointed
to by the hid_t and contain the object's group entry information (including its
name) and a pointer to the shared struct for that object.
This changed the naming of structs throughout the library (e.g., datatype->size
is now datatype->shared->size). I added an updated H5Tinit.c to windows.zip.
Platforms tested:
Visual Studio 7, sleipnir, arabica, verbena
Misc. update:
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Description: A few items were left out when tried to restore the old Error API.
There are also a few minor bug fixes.
Platforms tested: arabica fuss h5committest.
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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)
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performance.
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:
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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:
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Bug fix
Description:
Buffer for decoding superblock's driver information was too small when
using some VFDs (like the multi-file VFD).
Also made FPH5 code more portable and obvious when it's broadcasting the
superblock from the captain process to the other clients.
Solution:
Allocate the buffer for the driver information dynamicly
Platforms tested:
Copper
No h5committest because it's already working on other platforms.
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Update
Description:
A lot of modifications for the FPHDF5 stuff:
H5AC.c
H5ACprivate.h - Removed AC_find (it's replaced with AC_protect
and AC_unprotect). Added flushing if it's an FPHDF5 driver and
we're doing an AC_set or AC_unprotect with the dirty flag set.
H5B.c - Split up the B_flush function into different functions
since the one function was doing serialization which is better
left as a separate entity.
H5D.c - Removed some FPHDF5 code that was incorrect
H5F.c - Split up the F_flush function so that it no longer
allocates file space. Created new functions (F_init_superblock,
F_read_superblock, and F_write_superblock) for greater modularity
and so that the FPHDF5 non-captain processes can read the
superblock after the captain process writes it.
H5FD.c - Error message correction.
H5FDfphdf5.c - Removed MPI barrier call that wasn't needed.
H5FPclient.c
H5FPserver.c - Modified so that if a process requests data that
isn't exactly aligned, we can return it if we have the block that
contains the requested address.
H5G.c
H5Gent.c
H5Gnode.c
H5HL.c
H5HLpkg.h
H5HLprivate.h
H5Oefl.c - Removed the H5HL_peek function since it was doing a
(now unsafe) holding of the information in the cache. Replaced
with protect and unprotect calls.
H5TB.c - Error fix. The TB_dless function wasn't working
properly.
H5Gstab.c - Format change.
H5err.txt
H5Edefin.h
H5Einit.h
H5Epubgen.h
H5Eterm.h - Added new error code.
Platforms tested:
Modi4 (paralle, Fortran)
Sol (Fortran)
Linux (C++, Fortran)
Copper (Parallel, Fortran)
Misc. update:
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New error
Description:
Added H5E_CANTCLOSEOBJ error
Platforms tested:
FreeBSD 4.8 (sleipnir)
too minor to need h5committest
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Code cleanup, etc.
Description:
Previously (in versions prior to 1.7), there were two locations to
modify when an error was added to the library. Now, with the new error API,
there were four.
Solution:
Created a single text file (src/H5err.txt) and a perl script (bin/make_err)
which uses the text file to automatically create header files that are included
in appropriate places in the library.
This means that there is only one file (src/H5err.txt) which needs to be
modified when a new error code is added to the library. The automatically
generated headers depend on this file and the makefiles will take care of
running the perl script to regenerate them when the text file changes, so no
user action is required when a new error is added.
Platforms tested:
h5committested
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