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Code cleanup & reorganization
Description:
Move further in the testing framework cleanup, eliminating all the
global variables (moving them into testframe.c as static variables) from the
testing framework code and moving it into the libh5test.a.
Platforms tested:
FreeBSD 4.9 (sleipnir) w & w/o thread-safety, c++ & parallel
h5committested
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Bug fix
Description:
H5Gget_objname_by_idx should allow NULL for the 'name' parameter, to allow
for querying for the name's length.
Solution:
Allow NULL for the 'name' parameter, the internal functions were already
ready to handle that case.
Clean up RM information about H5Gget_objname_by_idx and
H5Gget_objtype_by_idx also.
Platforms tested:
FreeBSD 4.8 (sleipnir)
h5committest
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Bug fix
Description:
H5Gget_num_objs, H5Gget_objname_by_idx and H5Gget_objtype_by_idx were
only accepting a group ID, instead of a location ID, as our documentation for
them stated.
Solution:
Allow them to accept a location ID.
Platforms tested:
FreeBSD 4.8 (sleipnir)
h5committest
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Version update
Description:
Removed 1.4 compatibility code in the library.
Platforms tested:
FreeBSD 4.8 (sleipnir)
h5committest
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Bug fix (backward compatibility)
Description:
Changes we've made during development of the 1.5.x branch had broken the
feature of allowing user's callbacks to H5Giterate to return a value
through the library back to the application which called H5Giterate.
Solution:
Better testing for this feature.
Platforms tested:
FreeBSD 4.8 (sleipnir)
h5committest
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Description: 1.4 compatibility for H5G_obj_t type and H5Zregister test.
Solution: use macro H5_WANT_H5_V1_4_COMPAT
Platforms tested: h5committest
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Code cleanup
Description:
Clean up comments, etc.
Platforms tested:
FreeBSD 4.8 (sleipnir) w/C++
Linux 2.4 (burrwhite) w/FORTRAN
Solaris 2.7 (arabica) w/FORTRAN
IRIX64 6.5 (modi4) w/parallel & FORTRAN
(h5committest not run due to my ongoing difficulties with C++ on burrwhite).
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Update
Description:
Updated the Copyright statement
Platforms tested:
Linux (This change is only in the comments, so I just check that the
modules still compile)
Misc. update:
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Lots of performance improvements & a couple new internal API interfaces.
Description:
Performance Improvements:
- Cached file offset & length sizes in shared file struct, to avoid
constantly looking them up in the FCPL.
- Generic property improvements:
- Added "revision" number to generic property classes to speed
up comparisons.
- Changed method of storing properties from using a hash-table
to the TBBT routines in the library.
- Share the propery names between classes and the lists derived
from them.
- Removed redundant 'def_value' buffer from each property.
- Switching code to use a "copy on write" strategy for
properties in each list, where the properties in each list
are shared with the properties in the class, until a
property's value is changed in a list.
- Fixed error in layout code which was allocating too many buffers.
- Redefined public macros of the form (H5open()/H5check, <variable>)
internally to only be (<variable>), avoiding innumerable useless
calls to H5open() and H5check_version().
- Reuse already zeroed buffers in H5F_contig_fill instead of
constantly re-zeroing them.
- Don't write fill values if writing entire dataset.
- Use gettimeofday() system call instead of time() system when
checking the modification time of a dataset.
- Added reference counted string API and use it for tracking the
names of objects opening in a file (for the ID->name code).
- Removed redundant H5P_get() calls in B-tree routines.
- Redefine H5T datatype macros internally to the library, to avoid
calling H5check redundantly.
- Keep dataspace information for dataset locally instead of reading
from disk each time. Added new module to track open objects
in a file, to allow this (which will be useful eventually for
some FPH5 metadata caching issues).
- Remove H5AC_find macro which was inlining metadata cache lookups,
and call function instead.
- Remove redundant memset() calls from H5G_namei() routine.
- Remove redundant checking of object type when locating objects
in metadata cache and rely on the address only.
- Create default dataset object to use when default dataset creation
property list is used to create datasets, bypassing querying
for all the property list values.
- Use default I/O vector size when performing raw data with the
default dataset transfer property list, instead of querying for
I/O vector size.
- Remove H5P_DEFAULT internally to the library, replacing it with
more specific default property list based on the type of
property list needed.
- Remove redundant memset() calls in object header message (H5O*)
routines.
- Remove redunant memset() calls in data I/O routines.
- Split free-list allocation routines into malloc() and calloc()-
like routines, instead of one combined routine.
- Remove lots of indirection in H5O*() routines.
- Simplify metadata cache entry comparison routine (used when
flushing entire cache out).
- Only enable metadata cache statistics when H5AC_DEBUG is turned
on, instead of always tracking them.
- Simplify address comparison macro (H5F_addr_eq).
- Remove redundant metadata cache entry protections during dataset
creation by protecting the object header once and making all
the modifications necessary for the dataset creation before
unprotecting it.
- Reduce # of "number of element in extent" computations performed
by computing and storing the value during dataspace creation.
- Simplify checking for group location's file information, when file
has not been involving in file-mounting operations.
- Use binary encoding for modification time, instead of ASCII.
- Hoist H5HL_peek calls (to get information in a local heap)
out of loops in many group routine.
- Use static variable for iterators of selections, instead of
dynamically allocation them each time.
- Lookup & insert new entries in one step, avoiding traversing
group's B-tree twice.
- Fixed memory leak in H5Gget_objname_idx() routine (tangential to
performance improvements, but fixed along the way).
- Use free-list for reference counted strings.
- Don't bother copying object names into cached group entries,
since they are re-created when an object is opened.
The benchmark I used to measure these results created several thousand
small (2K) datasets in a file and wrote out the data for them. This is
Elena's "regular.c" benchmark.
These changes resulted in approximately ~4.3x speedup of the
development branch when compared to the previous code in the
development branch and ~1.4x speedup compared to the release
branch.
Additionally, these changes reduce the total memory used (code and
data) by the development branch by ~800KB, bringing the development
branch back into the same ballpark as the release branch.
I'll send out a more detailed description of the benchmark results
as a followup note.
New internal API routines:
Added "reference counted strings" API for tracking strings that get
used by multiple owners without duplicating the strings.
Added "ternary search tree" API for text->object mappings.
Platforms tested:
Tested h5committest {arabica (fortran), eirene (fortran, C++)
modi4 (parallel, fortran)}
Other platforms/configurations tested?
FreeBSD 4.7 (sleipnir) serial & parallel
Solaris 2.6 (baldric) serial
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Purpose:
new functions
Description:
H5Gget_num_objs, H5Gget_objname_by_idx and H5Gget_objtype_by_idx.
Platforms tested:
modi4, arabica, eirene
Misc. update:
RELEASE.txt updated.
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Code cleanup
Description:
Cleanup up a few compiler warnings...
Platforms tested:
IRIX64 6.5 (modi4) w/parallel
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Code cleanup
Description:
Cleanup compiler warnings found by the SGI compiler and gcc 3.0
Platforms tested:
FreeBSD 4.5 w/gcc 3.0 (hack) && IRIX64 (modi4)
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Code cleanup for better compatibility with C++ compilers
Description:
C++ compilers are choking on our C code, for various reasons:
we used our UNUSED macro incorrectly when referring to pointer types
we used various C++ keywords as variables, etc.
we incremented enum's with the ++ operator.
Solution:
Changed variables, etc.to avoid C++ keywords (new, class, typename, typeid,
template)
Fixed usage of UNUSED macro from this:
char UNUSED *c
to this:
char * UNUSED c
Switched the enums from x++ to x=x+1
Platforms tested:
FreeBSD 4.4 (hawkwind)
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code warrior support
and some clean up
the macros file_seek and file_offset_t that were repeated over sevral files were put only in
H5private.h
H5private .h was updated for win32
vthe
Description:
Solution:
Platforms tested:
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Update
Description:
Changed includes of the form:
#include <hdf5_file.h>
to
#include "hdf5_file.h"
so that gcc can pick them up easier without including the system
header files since we don't care about them.
Platforms tested:
Linux
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Code Tweaks
Description:
"FILE" macro for file names was getting confused with Standard C __FILE__
macro on certain platforms.
Solution:
Changed "FILE" macro usage to "DATAFILE"
Platforms tested:
FreeBSD 4.3 (hawkwind)
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Bug fix (sort of)
Description:
The RCSID string in H5public.h was causing the C++ code problem as it
was included multiple times and C++ did not like multiple definitions
of the same static variable.
Solution:
Since we don't really make use of the RCSID strings as we have not
installed it in all source files, we decided to remove it.
Platforms tested:
eirene (linux), modi4 (IRIX64-64) both serial and parallel modes.
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** src/H5Tconv.c
** src/H5Tpkg.h
** src/H5Tpublic.h
The H5T_conv_struct_opt() function had a design flaw -- it
didn't keep information about the stride to use to step
through the temporary/background-value buffer and thus nested
invocations would clobber each other's temp buffers. This was
fixed by splitting the `stride' argument into `buf_stride' and
`bkg_stride' arguments for all the conversion functions. THIS
IS AN API CHANGE, but users will get a compiler warning when
they pass their conversion function pointer to H5Tregister().
** src/H5T.c
** src/H5Tprivate.h
Added a bkg_stride argument to the H5T_convert() definition in
order to fix a bug related to the optimized compound datatype
conversion function.
** src/H5T.c
** src/H5A.c
** src/H5D.c
** src/H5Ofill.c
** src/H5P.c
Added bkg_stride=0 argument to the H5T_convert() calls.
** test/dtypes.c
Added a test for the H5T_conv_struct_opt() bug fixed above.
** src/H5FL.c
The H5FL_term() function should return non-zero even when it
couldn't free all the free lists do to their being used by
some other package. When that other package terminates it
will return non-zero, causing H5FL_term() to be called
again. This fixes some of the `infinite loop closing library'
messages.
** tools/pdb2hdf
Uses print_version() instead of doing that itself.
** src/H5Ppublic.h
Renamed H5Pget_gc_reference() declaration to make it match the
definition.
** src/H5FDlog.c
Added API tracing macros.
Removed `const' qualifier from a `char*' member of a struct
which was allocated on the heap.
** src/H5TB.c
Added curly braces to a couple deeply-nested `if' statements
to make them clearer and to shut up the increadibly stupid and
just plain incorrect gcc warning about ambiguous `else'.
** test/titerate.c
Removed incomplete initialization in favor of memset() for one
auto variable to stop compiler warnings.
** tools/Depencencies
Regenerated to remove references to h5dumputil.c
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B-tree nodes
and callback functions which returned non-zero were not working correctly.
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