summaryrefslogtreecommitdiffstats
path: root/src/H5Gpkg.h
Commit message (Collapse)AuthorAgeFilesLines
* [svn-r12977] Description:Quincey Koziol2006-11-271-5/+4
| | | | | | | | Added H5Gget_info[_by_idx] routines and deprecated H5Gget_num_objs routine. Tested on: Linux/32 2.6 (chicago) Linux/64 2.6 (chicago2)
* [svn-r12963] Description:Quincey Koziol2006-11-211-0/+1
| | | | | | | | | | Refactor internal code that retrieves the object's type to use the new H5O_type_t (which only definitions for object types, instead of links as well) instead of the older H5G_obj_t (which included links, etc.) Tested on: Linux/32 2.6 (chicago) Linux/64 2.6 (chicago2)
* [svn-r12955] Description:Quincey Koziol2006-11-211-0/+3
| | | | | | | | Finish implementing H5Oopen_by_idx() (still needs tests) Tested on: Linux/32 2.4 (chicago) Linux/64 2.4 (chicago2)
* [svn-r12954] Description:Quincey Koziol2006-11-211-1/+3
| | | | | | | | Initial refactoring to prepare for H5Oopen_by_idx() API support. Tested on: Linux/32 2.4 (chicago) Linux/64 2.4 (chicago2)
* [svn-r12949] Description:Quincey Koziol2006-11-201-39/+49
| | | | | | | | | | | | | | | | Finish implementation of H5Literate() [still needs real tests] Clean up datatype macro warnings a bit more. Unify iterator callback macros and put up in public header file, with the iterator directions. Tested on: Mac OS X/32 10.4.8 (amazon) FreeBSD/32 4.11 (sleipnir) Linux/32 2.4 (heping) Linux/64 2.4 (mir) AIX/32 5.? (copper)
* [svn-r12932] Description:Quincey Koziol2006-11-171-20/+30
| | | | | | | | | | | | Basic support for H5Literate() routine. Still needs to be fleshed out and refactored to simplify. Also, needs tests. :-) Tested on: FreeBSD/32 4.11 (sleipnir) Linux/32 2.4 (heping) Linux/64 2.4 (mir) AIX/32 5.? (copper) Mac OS X/32 10.4.8 (amazon)
* [svn-r12922] Description:Quincey Koziol2006-11-161-0/+2
| | | | | | | | | | | Add support for "delete by index" to "old-style" groups, finishing implmentation of H5Ldelete_by_idx() routine. Tested on: FreeBSD/32 4.11 (sleipnir) Linux/32 2.4 (heping) Linux/64 2.4 (mir) Aix/32 5.? (copper)
* [svn-r12910] Description:Quincey Koziol2006-11-141-0/+8
| | | | | | | | | | | More progress toward getting H5Ldelete_by_idx to work fully - can now delete by index in compact group (but not dense groups or "old-style" groups yet). Need to go write a v2 B-tree routine to delete from the B-tree by index before the dense storage will work properly... Tested on: Linux/32 2.6 (chicago) Linux/64 2.6 (chicago2)
* [svn-r12907] Description:Quincey Koziol2006-11-141-15/+12
| | | | | | | | | Finish refactoring internal link deletion code, to make it possible to wrap up the H5Ldelete_by_idx() coding. Tested on: Linxu/32 2.6 (chicago) Linxu/64 2.6 (chicago2)
* [svn-r12906] Description:Quincey Koziol2006-11-131-0/+2
| | | | | | | | | | | | | | | | Straighten out some convoluted code when links were being deleted, which could cause the "delete" callback for user-defined links to not get called when the group they were in was deleted. Had to compromise on the "delete" callback though - only calls the callback with the ID for the file the link is in, instead of the group, since the group is being held open upstream in the calling sequence during a group deletion and this prevents a group and its ID from being created. (This could possibly be worked around, but would cause a fair bit of havoc in the code and I'm not entirely certain it's worth it...) Tested on: Linux/32 2.6 (chicago)
* [svn-r12896] Description:Quincey Koziol2006-11-131-14/+16
| | | | | | | | Move compact storage routines into separate file, to make room for internal routines that operate on links within group operations. Tested on: Linux/32 2.6 (chicago)
* [svn-r12894] Description:Quincey Koziol2006-11-121-6/+9
| | | | | | | | | | | | Add H5Lget_name_by_idx routine & tests Move more H5G routines to deprecated API file Tested on: FreeBSD/32 4.11 (sleipnir) w/threadsafe Linux/32 2.4 (heping) C++ & FORTRAN Linux/64 2.4 (mir) w/build-all & enable_compat1.6 AIX/32 5.? (copper) w/parallel & FORTRAN
* [svn-r12890] Description:Quincey Koziol2006-11-111-42/+41
| | | | | | | | | | | | | | | | | Finished implementation of H5Lget_info_by_idx for all cases: old vs. new group formats, compact vs. dense new link storage, increasing vs. decreasing vs. native iteration order. Also, refactor symbol table "foo by index" routines to be more generic and share more code by using a single B-tree iteration callback which makes callbacks to a specific "get <foo>" callback. Tested on: Mac OS X/32 10.4.8 (amazon) FreeBSD/32 4.11 (sleipnir) Linux/32 2.4 (heping) Linux/64 2.4 (mir) AIX/32 5.? (copper)
* [svn-r12878] Description:Quincey Koziol2006-11-071-3/+8
| | | | | | | | Flesh out support for looking up link info by index, some cases for using dense storage are working now. Tested on: Linux/32 2.6 (chicago)
* [svn-r12872] Description:Quincey Koziol2006-11-071-6/+11
| | | | | | | | | | | | Implement basic framework for H5Lget_info_by_idx and get it working for creation order indices on compact groups. Clean up code a bit. Close resource link in user-defined link traversal. Tested on: Linux/32 2.6 (chicago)
* [svn-r12830] Description:Quincey Koziol2006-10-301-13/+35
| | | | | | | | | Finish internal work necessary to track creation order in v2 B-tree when group is in "dense" storage form. Tested on: Linux/32 2.6 (chicago) Linux/64 2.6 (chicago2)
* [svn-r12825] Description:Quincey Koziol2006-10-301-3/+10
| | | | | | | | Rudimentary support for creating creation order index (but not inserting links in it yet). Testedon: Mac OS X/32 10.4.8 (amazon)
* [svn-r12700] Alert:Quincey Koziol2006-10-021-44/+108
| | | | | | | | | | | | | | | | | | | | | | | | | | | | File format is not stable, don't keep files produced! Description: First stage of checkins modifying the format of groups to support creation order. Implement "dense" storage for links in groups. Try to clarify some of the symbols for the H5L API. Add the H5Pset_latest_format() flag for FAPLs, to choose to use the newest file format options (including "dense" link storage in groups) Add the H5Pset_track_creation_order() flag for GCPLs, to enable creation order tracking in groups (although no index on creation order yet). Remove --enable-group-revision configure flag, as file format issues are now handled in a backwardly/forwardly compatible way. Clean up lots of compiler warnings and other minor formatting issues. Tested on: FreeBSD/32 4.11 (sleipnir) w/threadsafe Linux/32 2.4 (heping) w/FORTRAN & C++ Linux/64 2.4 (mir) w/enable-v1.6 compa Mac OSX/32 10.4.8 (amazon) AIX 5.3 (copper) w/parallel & FORTRAN
* [svn-r12680] Description:Quincey Koziol2006-09-251-1/+0
| | | | | | | | | Review, revise & checkin in Peter's latest round of object copy changes, which add basic support for datasets & attributes with reference datatypes. Tested on: Linux/32 2.6 (chicago) Linux/64 2.6 (chicago2)
* [svn-r12596] Refactored how external files are opened and closed.James Laird2006-08-181-3/+4
| | | | | | | | Object header locations (H5O_loc_t's) can now "hold open" a file and decrement its open object count when they close. This means that locations (H5O_loc_t's and H5G_loc_t's) should always be freed. Added more thorough tests to ensure that external files are closed.
* [svn-r12528] Added User-Defined links to the library.James Laird2006-08-021-23/+27
| | | | | | | | | | | | | | Users can create external links using H5L_create_external(). These links point to an object in another HDF5 file. Users can alter the behavior of external links or create new kinds of links by registering callbacks using the H5L interface. Added tests, tools support, etc. Also a number of other, minor changes have been made (some restructuring of the H5L interface, for instance). Additional documentation and examples are forthcoming.
* [svn-r12452] Purpose:James Laird2006-07-051-1/+4
| | | | | | | | | | | | | | | | | | | | | | 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.
* [svn-r12439] Purpose:Quincey Koziol2006-06-261-5/+5
| | | | | | | | | | | | | New feature Description: Check in Peter's code to add support for "shallow copy", "create intermediate groups", "no attributes" and "expand soft links" support. Platforms tested: FreeBSD 4.11 (sleipnir) Linux 2.4 (chicago) w/ & w/o group-revision enabled h5committest
* [svn-r12221] Purpose:Quincey Koziol2006-04-101-1/+6
| | | | | | | | | | | | | | | "Hide" file format changes (for now) Description: Add ifdef's (controlled by the --enable-group-revision configure flag) to disable group revision changes to the file format, in order to allow alpha release to go ahead without releasing an unsupported version into the wild. Platforms tested: FreeBSD 4.11 (sleipnir) Linux 2.4 32-bit (heping) Linux 2.4 64-bit (mir) Solaris 2.9 (shanti)
* [svn-r12189] Purpose:Quincey Koziol2006-04-011-0/+1
| | | | | | | | | | | | | | New/expanded features Description: Check in Peter's changed for the object copy code: - Allow/fix copying datasets using named variable-length datatypes - Start adding framework for property list to control how object copying occurs. Platforms tested: FreeBSD 4.11 (sleipnir) Too minor to require h5committest
* [svn-r11838] Purpose:Quincey Koziol2005-12-261-16/+4
| | | | | | | | | | | | | | | | 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
* [svn-r11732] Purpose:Quincey Koziol2005-11-161-0/+1
| | | | | | | | | | | | | More tests Description: Add more tests for proper behavior of groups with different group creation property settings. Platforms tested: FreeBSD 4.11 (sleipnir) Linux 2.4 Solaris 2.8
* [svn-r11712] Purpose:Quincey Koziol2005-11-151-21/+206
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.... :-)
* [svn-r11686] Purpose:Quincey Koziol2005-11-071-1/+17
| | | | | | | | | | | | | | | | | | | 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
* [svn-r11386] Purpose:Quincey Koziol2005-09-121-16/+72
| | | | | | | | | | | | | | Code cleanup/reorganization Description: Merge back some more changes extracted from the "compact group" set. This bunch cleans up and prepares the H5G_* routines for eventual import of new features. Platforms tested: FreeBSD 4.11 (sleipnir) Linux 2.4 Mac OS X.4
* [svn-r11307] Purpose:Quincey Koziol2005-08-291-16/+2
| | | | | | | | | | | | Code cleanup Description: Clean up internals of group creation & iteration code. Platforms tested: FreeBSD 4.11 (sleipnir) Mac OS X (nile) Too minor to require h5committest
* [svn-r11245] Purpose:Quincey Koziol2005-08-131-1/+1
| | | | | | | | | | | | | | | | | | | | Code cleanup Description: Trim trailing whitespace, which is making 'diff'ing the two branches difficult. Solution: Ran this script in each directory: foreach f (*.[ch] *.cpp) sed 's/[[:blank:]]*$//' $f > sed.out && mv sed.out $f end Platforms tested: FreeBSD 4.11 (sleipnir) Too minor to require h5committest
* [svn-r11229] Purpose:Quincey Koziol2005-08-101-1/+1
| | | | | | | | | | | | | | | | Big fix Description: A group opened by dereferencing a object reference would not work for H5Giterate(), due to the local heap & B-tree information not being cached. Solution: Get the local heap & B-tree info & point to that structure instead of the group entry for the group. Platforms tested: FreeBSD 4.11 (sleipnir) Too minor to require h5committest
* [svn-r11176] Purpose:Quincey Koziol2005-07-301-1/+2
| | | | | | | | | | | | | | | 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
* [svn-r11093] Purpose:Quincey Koziol2005-07-211-1/+2
| | | | | | | | | | | | Bug fix Description: Rewrite code for mounting files to clean up layers of kludges and implement a much cleaner and more maintainable design. Platforms tested: FreeBSD 4.11 (sleipnir) Linux 2.4
* [svn-r10958] Purpose:Quincey Koziol2005-06-201-0/+2
| | | | | | | | | | | | | New feature Description: Add group creation & access property lists, dataset access property lists and named datatype creation & access property lists. Currently have <foo>_extend() API names, which will need to be changed for the final release. Platforms tested: FreeBSD 4.11 (sleipnir) Linux 2.4 (heping)
* [svn-r10736] Purpose:Quincey Koziol2005-05-071-1/+1
| | | | | | | | | | | Code cleanup Description: Clean up some compiler warnings Platforms tested: FreeBSD 4.11 (sleipnir) h5committest
* [svn-r9727] Purpose:Quincey Koziol2004-12-291-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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-r9329] James Laird2004-09-281-2/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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:
* [svn-r7391] Purpose:Quincey Koziol2003-08-221-5/+8
| | | | | | | | | | | | | | | | 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
* [svn-r7192] Purpose:Quincey Koziol2003-07-091-1/+1
| | | | | | | | | | | Code cleanup Description: Clean up various minor warnings in the library. Platforms tested: FreeBSD 4.8 (sleipnir) too small to need h5committest
* [svn-r7172] Purpose:Quincey Koziol2003-07-071-8/+8
| | | | | | | | | | | Code cleanup Description: Remove "UNUSED" keyword from function prototypes in header files. Platforms tested: IA64 Linux cluster (titan) too small to need commit test
* [svn-r7080] Purpose:Quincey Koziol2003-06-231-4/+4
| | | | | | | | | | | | | | | | | 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: Correctly pass along iterator callback return value and adjust internal library code to conform to this design. Platforms tested: FreeBSD 4.8 (sleipnir) h5committest
* [svn-r6878] Purpose:Quincey Koziol2003-05-151-21/+4
| | | | | | | | | | | Code cleanup Description: Limit the scope on more function prototypes/macros/typedefs. Platforms tested: FreeBSD 4.8 (sleipnir) h5committest not necessary.
* [svn-r6779] Purpose: Backward compatibility changeRaymond Lu2003-04-291-1/+1
| | | | | | | | Description: 1.4 compatibility for H5G_obj_t type and H5Zregister test. Solution: use macro H5_WANT_H5_V1_4_COMPAT Platforms tested: h5committest
* [svn-r6744] Raymond Lu2003-04-241-1/+1
| | | | | | | | | | Purpose: A little code rewriting Description: object types were defined as macros in H5Gpublic.h Solution: changed them to enumerate type Platforms tested: h5committtest
* [svn-r6654] Purpose:Quincey Koziol2003-04-141-3/+1
| | | | | | | | | | | | | | | | | | | | Code cleanup Description: Stop using hard-coded constant for the initial size of the root group's symbol table local heap and use macro. Also, changed existing (unused) macro for the initial heap size to be the same as the hard-coded constant. 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).
* [svn-r6546] Purpose:Bill Wendling2003-03-311-3/+14
| | | | | | | | | | | | Update Description: Updated copyright statement in files which hadn't been updated yet. Platforms tested: Linux (Only comment change) Misc. update:
* [svn-r6387] Purpose:Quincey Koziol2003-02-101-9/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | Bug Fix Description: Metadata cache in parallel I/O can cause hangs in applications which perform independent I/O on chunked datasets, because the metadata cache can attempt to flush out dirty metadata from only a single process, instead of collectively from all processes. Solution: Pass a dataset transfer property list down from every API function which could possibly trigger metadata I/O. Then, split the metadata cache into two sets of entries to allow dirty metadata to be set aside when a hash table collision occurs during independent I/O. Platforms tested: Tested h5committest {arabica (fortran), eirene (fortran, C++) modi4 (parallel, fortran)} FreeBSD 4.7 (sleipnir) serial & parallel Misc. update: Updated release_docs/RELEASE
* [svn-r6252] Purpose:Quincey Koziol2003-01-091-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
generated by cgit v0.12 at 2024-11-18 10:07:43 (GMT)