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* [svn-r13870] Description:Quincey Koziol2007-06-151-3/+3
| | | | | | | | | | Fix writing variable-length datatype fill values for contiguous dataset storage Tested on: Mac OS X/32 10.4.9 (amazon) Linux/32 2.6 (chicago) Linux/64 2.6 (chicago2)
* [svn-r13253] Updated all C and C++ style source code files with the THG ↵Albert Cheng2007-02-071-2/+3
| | | | | | | | | copyright notice. Tested platform: Kagiso only since it is only a comment block change. If it works in one machine, it should work in all, I hope. Still need to check the parallel build on copper.
* [svn-r13147] Changed error return value of H5Sselect_valid() from 0 to FAIL.Christian Chilan2007-01-171-2/+4
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* [svn-r13068] Ran bin/reconfigure. Some of the scripts have been changed or ↵James Laird2006-12-181-4/+4
| | | | | | | | | haven't been run in a while, so many of the source files were updated with tracing macros, etc. No code changes by me. Tested on kagiso and smirom.
* [svn-r12842] Description:Quincey Koziol2006-11-021-6/+6
| | | | | | | | | | | | | | | | Refactor generic property list initialization code to put property list specific routines in property list modules, instead of scattered to the four winds. Also, introduce property list class initialization objects, to make adding new property list classes in the library easier. Fix daily test failure by using H5Pget_elink_prefix() API routine instead of looking at the "raw" generic property list information. Tested on: Mac OS X/32 10.4.8 (amazon) FreeBSD/32 4.11 (sleipnir) w/threadsafe Linux/32 2.4 (heping) w/C++ & FORTRAN Linux/64 2.4 (mir) w/build-all & 1.6 compat
* [svn-r12706] Description:Quincey Koziol2006-10-021-6/+6
| | | | | | | | | Clean up some of the warnings on 64-bit Linux... Tested on: Linux/32 2.6 (chicago) Linux/64 2.6 (chicago2) Too minor to require h5committest
* [svn-r11899] Purpose:Quincey Koziol2006-01-281-0/+1
| | | | | | | | | | | | | | | | Bug fix & new feature Description: Support variable-length datatypes in compact data storage and chunked data storage, along with attributes. Bug fix on the H5T_vlen_set_loc to allow for changing the file on a variable-length datatype on disk. Platforms tested: FreeBSD 4.11 (sleipnir) Linux 2.4 Can't h5committest right now, due to missing cache files.
* [svn-r9857] Purpose: MaintenanceElena Pourmal2005-01-221-3/+0
| | | | | | | | | | | | | | Description: Removed PABLO from the source Solution: Platforms tested: arabica with 64-bit, copper with parallel, heping with GNU C and C++ and PGI fortran (but I disabled hl, there is some weird problem only on heping: F9XMODFLAG is not propagated to the Makefile files Misc. update:
* [svn-r9727] Purpose:Quincey Koziol2004-12-291-22/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Bug Fix/Code Cleanup/Doc Cleanup/Optimization/Branch Sync :-) Description: Generally speaking, this is the "signed->unsigned" change to selections. However, in the process of merging code back, things got stickier and stickier until I ended up doing a big "sync the two branches up" operation. So... I brought back all the "infrastructure" fixes from the development branch to the release branch (which I think were actually making some improvement in performance) as well as fixed several bugs which had been fixed in one branch, but not the other. I've also tagged the repository before making this checkin with the label "before_signed_unsigned_changes". Platforms tested: FreeBSD 4.10 (sleipnir) w/parallel & fphdf5 FreeBSD 4.10 (sleipnir) w/threadsafe FreeBSD 4.10 (sleipnir) w/backward compatibility Solaris 2.7 (arabica) w/"purify options" Solaris 2.8 (sol) w/FORTRAN & C++ AIX 5.x (copper) w/parallel & FORTRAN IRIX64 6.5 (modi4) w/FORTRAN Linux 2.4 (heping) w/FORTRAN & C++ Misc. update:
* [svn-r9354] Purpose:Quincey Koziol2004-10-011-670/+0
| | | | | | | | | | | | | | | | Bug fix & code cleanup Description: More dataset cleanups to get to a point where we can fix the chunked I/O bug. Also fix a couple of errors in the recent file object resurrection changes which should hopefully address the recent daily test failres (H5T.c) Platforms tested: FreeBSD 4.10 (sleipnir) w/parallel Solaris 2.7 (arabica) h5committest
* [svn-r9342] Purpose:Quincey Koziol2004-09-301-192/+65
| | | | | | | | | | | | | | | | Bug fix/code cleanup Description: Clean up raw data I/O code to bundle the I/O parameters (dataset, DXPL ID, etc) into a single struct to pass around through the dataset I/O routines, since they are always passed together, until very near the bottom of the I/O stack. Platforms tested: FreeBSD 4.10 (sleipnir) w/parallel Solaris 2.7 (arabica) IRIX64 6.5 (modi4) h5committest
* [svn-r8782] Purpose:Quincey Koziol2004-07-011-1/+1
| | | | | | | | | | | Code cleanup Description: Clean up almost all warnings from Windows builds. Platforms tested: FreeBSD 4.10 (sleipnir) w/parallel Too minor to require h5committest
* [svn-r8760] Purpose:Quincey Koziol2004-06-291-1/+1
| | | | | | | | | | | | | 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
* [svn-r8731] Purpose:Quincey Koziol2004-06-231-49/+29
| | | | | | | | | | | | | | | Code cleanup & minor optimization Description: Re-work the way interface initialization routines are specified in the library to avoid the overhead of checking for them in routines where there is no interface initialization routine. This cleans up warnings with gcc 3.4, reduces the library binary size a bit (about 2-3%) and should speedup the library's execution slightly. Platforms tested: FreeBSD 4.10 (sleipnir) w/gcc34 h5committest
* [svn-r8683] Purpose:Quincey Koziol2004-06-141-36/+20
| | | | | | | | | | | | | 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
* [svn-r8677] Purpose:Quincey Koziol2004-06-141-20/+20
| | | | | | | | | | | | | | | | | | | Code cleanup & optimization Description: Remove old structures that used a union to store information about the dataspace extent and just store the information directly in the dataspace extent itself. Remove ifdef'd references to permutation ordering in dataspaces. We'll definitely need more than this code if/when we implement this feature. Change allocation of dataspace information from calloc() to malloc(). Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.10 (sleipnir) w/parallel Too minor to require h5committest
* [svn-r8673] Purpose:Quincey Koziol2004-06-131-79/+42
| | | | | | | | | | | | | | | | | | Code optimization Description: Revised dataspace selections to use a more "object oriented" mechanism to set the function pointers for each selection and selection iterator. This reduces the amount and number of times that dataspace selection info has to be copied. Additionally, change hyperslab selection information to be dynamically allocated instead of an inline struct. Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.10 (sleipnir) w/parallel Too minor to require h5committest
* [svn-r8613] Purpose:Quincey Koziol2004-06-051-21/+19
| | | | | | | | | | | | | | | | | Refactor code Description: Move chunk and contiguous cached raw data from file information to dataset information. This simplifies a number of internal interfaces, aligns the code with it's purpose better and should allow more optimizations to the chunked data I/O performance. Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.10 (sleipnir) h5committest Misc. update:
* [svn-r8544] Purpose:Quincey Koziol2004-05-201-34/+324
| | | | | | | | | | | | | | Code optimization Description: Expand the use of macros to inline trivial function pointer lookup and calls to reduce the overall number of functions invoked during normal operation of the library. Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.9 (sleipnir) w/parallel Too minor to require h5committest
* [svn-r8520] Purpose:Quincey Koziol2004-05-131-22/+0
| | | | | | | | | | | | Code optimization Description: Don't make a separate allocation for the selection offset - incorporate it into the selection structure as a fixed size array. Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.9 (sleipnir) w/parallel
* [svn-r8496] Purpose:Quincey Koziol2004-05-081-3/+8
| | | | | | | | | | | | | Code optimization Description: Further reduce the number of copies we make of a hyperslab selection for chunked I/O, especially when we are only going to throw the old selection away for a new one. Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.9 (sleipnir) w/parallel
* [svn-r8462] Purpose:Quincey Koziol2004-05-011-34/+14
| | | | | | | | | | | | | Code optimization Description: Reduce the number of times the number of elements in a selection is computed. Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.9 (sleipnir) w/parallel too minor to require h5committest
* [svn-r8460] Purpose:Quincey Koziol2004-05-011-21/+20
| | | | | | | | | | | | | | | Code optimization Description: Move the element size for the selection into the selection iterator instead of always passing it as a parameter. Also, eleminate another 64-bit multiply for "all" selections. Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.9 (sleipnir) too minor to require h5committest
* [svn-r8457] Purpose:Quincey Koziol2004-05-011-74/+70
| | | | | | | | | | | | | Code optimization Description: Stop straddling the line and always use elements instead of bytes to determine how how I/O to perform on a selection. Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.9 (sleipnir) too minor to require h5committest
* [svn-r8408] Purpose:Quincey Koziol2004-04-221-6/+6
| | | | | | | | | | | | | | Code optimization Description: Instead of dynamicly allocating various arrays for various pieces of information about a selection or selection iterator, just use fixed size array of size H5S_MAX_RANK (as the rest of the library does). Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.9 (sleipnir) h5committest
* [svn-r8376] Purpose:Quincey Koziol2004-04-171-12/+6
| | | | | | | | | | | | | | | | | Code cleanup Description: Update null dataspace changes to try to write older version of dataspace information whenever possible. Refactor common code to only one location. Allow I/O operations to succeed on null dataspaces. Platforms tested: FreeBSD 4.9 (sleipnir) h5committest
* [svn-r8347] Purpose:Quincey Koziol2004-04-131-149/+161
| | | | | | | | | | | | | Code optimization Description: Eliminate memory allocations for I/O vectors when using the default vector size. Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.9 (sleipnir) too minor to require h5committest
* [svn-r8312] Purpose:Quincey Koziol2004-04-061-12/+2
| | | | | | | | | | | | Code optimization Description: Eliminate unnecessary allocation and point at existing data structure instead. Platforms tested: Solaris 2.7 (arabica) too minor to require h5committest
* [svn-r8307] Purpose:Quincey Koziol2004-04-061-2/+4
| | | | | | | | | | | | Code optimization Description: Fix H5S_select_copy so it doesn't call calloc() for allocating memory that will be immediately overwritten. Platforms tested: Solaris 2.7 (arabica) too small to require h5committest
* [svn-r8301] Purpose:Quincey Koziol2004-04-061-44/+47
| | | | | | | | | | | | | Code optimization Description: Move handling for free list arrays that have no maximum size to separate set of routines and optimize computations for free list arrays with maximum size to avoid re-computing sizes all the time. Platforms tested: h5committest Solaris 2.7 (arabica)
* [svn-r8276] *** empty log message ***Raymond Lu2004-03-241-0/+7
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* [svn-r8158] Purpose:Quincey Koziol2004-02-061-78/+30
| | | | | | | | | | | | | | | | | Code cleanup/optimization Description: Query property list values once, at the beginning of the I/O routines, instead of querying the property list values multiple (lots!) of times in lower level routines. Solution: Create "property list caches" for internal library queries of the property list values. Platforms tested: IBM p690 (copper) w/parallel & fphdf5 h5committest
* [svn-r8000] Purpose:Quincey Koziol2003-12-311-0/+18
| | | | | | | | | | | | | Bug fix Description: Fixed bug in hyperslab iteration where certain combinations of flattened and non-flattened dimensions would cause incorrect locations to be iterated over. Platforms tested: FreeBSD 4.9 (sleipnir) too minor to require h5committest
* [svn-r7926] Purpose:Quincey Koziol2003-12-101-9/+18
| | | | | | | | | | | | Bug fix Description: Clean up a few allocations of zero-sized blocks that were detected with the new free-list assertions. Platforms tested: FreeBSD 4.9 (sleipnir) w & w/o parallel too minor to require h5committest
* [svn-r7917] Purpose:Quincey Koziol2003-12-061-4/+4
| | | | | | | | | | | | | | | | | | | Code cleanup Description: Clean up compiler warnings, especially the 'FUNC' variable not used which comes out in production mode. Solution: Had to add a new FUNC_ENTER_NOAPI_NOINIT_NOFUNC macro for those non-API functions which don't need the 'FUNC' variable defined. (This will be _so_ much easier when C99 is standard on all our supposed platforms, since it has a __FUNC__ macro... ) Platforms tested: FreeBSD 4.9 (sleipnir) too minor for h5committest (although there were lots of files changed, the change was minor in each one)
* [svn-r7181] Purpose:Quincey Koziol2003-07-071-34/+0
| | | | | | | | | | | Version update Description: Removed 1.4 compatibility code in the library. Platforms tested: FreeBSD 4.8 (sleipnir) h5committest
* [svn-r7116] Purpose:Quincey Koziol2003-06-271-3/+4
| | | | | | | | | | | | Update code Description: Move "PABLO_MASK" definition above header file inclusion to avoid problems with inline functions in header files. Platforms tested: FreeBSD 4.8 (sleipnir) h5committest
* [svn-r6962] Purpose:Quincey Koziol2003-06-041-1/+1
| | | | | | | | | | Code cleanup Description: Update dependencies and tracing information Platforms tested: h5committested
* [svn-r6950] Purpose:Quincey Koziol2003-06-041-90/+336
| | | | | | | | | | | | | | | | | | | | | | API tweak. Description: The H5Sget_select_bounds() API call was using hsize_t arrays for retrieving the 'start' and 'end' coordinates, which is counter to the rest of the dataspace API. Solution: Change the arrays to be hssize_t instead. Platforms tested: FreeBSD 4.8 (sleipnir) w/C++ FreeBSD 4.8 (sleipnir) w/parallel h5committested Misc. update: Updated all docs for this change. Added 1.4 compatibility #ifdef's
* [svn-r6942] Purpose:Quincey Koziol2003-05-311-1/+175
| | | | | | | | | | | | | | | | | Performance improment Description: Speed up chunked dataset I/O. This breaks down into several areas: - Compute chunk selections in the file by using hyperslab operations instead of iterating over each element in the selection. - If the file and memory selections are the same shape, use the file chunk selections to compute the memory chunk selections. This required several additional dataspace, dataspace selection and hyperslab routines. Platforms tested: h5committestted (although Fortran tests failed for some reason)
* [svn-r6825] Purpose:Quincey Koziol2003-05-071-249/+389
| | | | | | | | | | | | | | | | | | | | | | | | | New feature/enhancement Description: Chunked datasets are handled poorly in several circumstances involving certain selections and chunks that are too large for the chunk cache and/or chunks with filters, causing the chunk to be read from disk multiple times. Solution: Rearrange raw data I/O infrastructure to handle chunked datasets in a much more friendly way by creating a selection in memory and on disk for each chunk in a chunked dataset and performing all of the I/O on that chunk at one time. There are still some scalability (the current code attempts to create a selection for all the chunks in the dataset, instead of just the chunks that are accessed, requiring portions of the istore.c and fillval.c tests to be commented out) and performance issues, but checking this in will allow the changes to be tested by a much wider audience while I address the remaining issues. Platforms tested: h5committested, FreeBSD 4.8 (sleipnir) serial & parallel, Linux 2.4 (eirene)
* [svn-r6430] Purpose:Quincey Koziol2003-02-241-6/+16
| | | | | | | Code cleanup (sorta) Description: Updated to new copyright information as I browsed these files.
* [svn-r6296] Purpose:Quincey Koziol2003-01-171-2/+16
| | | | | | | | | | Code cleanup Description: Reduce warnings on Windows Platforms tested: FreeBSD 4.7 (sleipnir)
* [svn-r6266] Purpose:Quincey Koziol2003-01-101-16/+16
| | | | | | | | | | | | Code cleanup/new feature. Description: Split FUNC_LEAVE into API and non-API specific versions. This allows a solution to compiling this branch with C++, as well as reducing the size of the binaries produced. Platforms tested: FreeBSD 4.7 (sleipnir) w/serial, parallel (including MPE) & thread-safe
* [svn-r6252] Purpose:Quincey Koziol2003-01-091-160/+162
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* [svn-r6047] Purpose:Quincey Koziol2002-11-011-0/+11
| | | | | | | | | | | | | | | | | Bug fix & code cleanup Description: Hyperslab code for collapsing dimensions was incorrectly collapsing selections inappropriately when the fastest changing dimension couldn't be collapsed. Also add some more assertions which will make similar bugs easier to find. Solution: Break out of loop earlier. Platforms tested: modi4 (parallel), too small to triple check.
* [svn-r6006] Purpose:Albert Cheng2002-10-151-4/+5
| | | | | | | | | | | | | | | | Bug fix (ID 841) Description: h5dumptst (generating h5dump test files) failed with an assertion error in H5S_select_iterate. H5S_select_iterate did not account for scalar type that has rank=0, thus no dimension sizes. Solution: Put the assertion of valid sizes only after verify rank is larger than 0. (fix is coached by Quincey.) Platforms tested: Tested h5committest {arabica (fortran), eirene (fortran, C++) modi4 (parallel, fortran)}? YES. Misc. update: Update release_docs/RELEASE for bug fixes, new features, etc. YES.
* [svn-r5924] Purpose:Quincey Koziol2002-09-131-2/+2
| | | | | | | | | | | | | Code cleanup Description: Switch order of test on array bounds to avoid reading data outside of array Located by purify. Platforms tested: FreeBSD 4.6 (sleipnir) w/C++ Solaris 2.7 (arabica) w/C++ IRIX64 6.5 (modi4) w/parallel & fortran
* [svn-r5894] Purpose:Quincey Koziol2002-08-271-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Bug fix/Code cleanup/New Feature Description: Correct problems with writing fill-values to external storage and allocate the data storage at the correct times. Also, mostly straighten out the strange code which allocates and fills raw data storage for datasets. Things are still a bit odd in that the fill-values for chunked datasets are written when the space is allocated, instead of in a separate routine, but there are two reasons for this: it's inefficient (especially in parallel) to iterate through all the chunks twice, and (more importantly) the space needed to store compressed chunks isn't known until we've got a buffer of compressed fill-values ready to write to the chunk. Additionally, add in the H5D_SPACE_ALLOC_INCR and H5D_SPACE_ALLOC_DEFAULT setting for the "space time", which incorporate the previous behavior of the space allocation for chunked datasets. The default settings for the different types of dataset storage are now as follows: Contiguous - Late Chunked - Incremental Compact - Early This checkin also incorporates a change to the behavior of external data storage in two ways - fill-values are _never_ written to external storage (under the assumption that writing fill-values is triggered by allocating space in an HDF5 file, and since space is not allocated in the file, the fill-values should not be written) and external data files are now created if they don't exist when data is written to them. The fill-value will probably need to be revisited at some time in the future, this just seemed like the safer course currently. I think I cleaned up some compiler errors also, before getting bogged down in the fixes for the space allocation and fill-values. Platforms tested: FreeBSD 4.6 (sleipnir) w/serial & parallel. Will be testing on IRIX64 6.5 (modi4) in serial & parallel shortly.
* [svn-r5871] Purpose:Quincey Koziol2002-08-121-6/+6
| | | | | | | | | | | | | | | | Code cleanup Description: Combined H5P_isa_class and H5I_object functionality into a new internal H5P API function: H5P_object_verify, which checks that a property list is the appropriate class and then returns the property list object associated with the property list ID. This reduces the source code by about 200 LOC and trims the library binary some more. Platforms tested: FreeBSD 4.6 (sleipnir)
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