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* [svn-r10195] Purpose:Quincey Koziol2005-03-111-0/+1
| | | | | | | | | | | New feature Description: Add feature to modify an existing record in a B-tree Platforms tested: FreeBSD 4.11 (sleipnir) Solaris 2.9 (shanti)
* [svn-r10187] Purpose:Quincey Koziol2005-03-111-4/+3
| | | | | | | | | | | | | 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)
* [svn-r10184] Purpose:Quincey Koziol2005-03-111-0/+1
| | | | | | | | | | | | | | | | | | | | 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
* [svn-r10153] Purpose:Quincey Koziol2005-03-051-0/+1
| | | | | | | | | | | | 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)
* [svn-r9971] Purpose:Quincey Koziol2005-02-091-86/+87
| | | | | | | | | | | | 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
* [svn-r9655] Snapshot version 1.7 release 44HDF Admin2004-12-121-86/+86
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* [svn-r9580] Purpose:Quincey Koziol2004-11-271-1/+7
| | | | | | | | | | | | | | | | | | | | 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)
* [svn-r9329] James Laird2004-09-281-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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-r9208] Purpose: Bug fixRaymond Lu2004-09-041-0/+3
| | | | | | | | 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.
* [svn-r8981] Purpose:Quincey Koziol2004-08-021-91/+91
| | | | | | | | | | | | | 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)
* [svn-r8791] Purpose: Rewrote metadata cache (H5AC.c, etc.) to improve ↵John Mainzer2004-07-021-2/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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:
* [svn-r8781] James Laird2004-07-011-0/+2
| | | | | | | | | | | | | | | | 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:
* [svn-r7494] Purpose:Quincey Koziol2003-09-191-97/+97
| | | | | | | | | | | | | | | | | | 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.
* [svn-r7489] Purpose:Bill Wendling2003-09-181-96/+97
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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:
* [svn-r7380] Purpose:Quincey Koziol2003-08-181-0/+1
| | | | | | | | | | | New error Description: Added H5E_CANTCLOSEOBJ error Platforms tested: FreeBSD 4.8 (sleipnir) too minor to need h5committest
* [svn-r7355] Purpose:Quincey Koziol2003-08-131-0/+164
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