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* [svn-r20588] Description:Quincey Koziol2011-04-211-3/+0
| | | | | | | | | Clean up code a bit, move new "terminate" VFD callback to new position in H5FD_class_t struct. Tested on: Mac OS X/32 10.6.7 (amazon) w/debug & production (h5committest not required on this branch)
* [svn-r20065] Description:Quincey Koziol2011-02-081-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Bring changes from Coverity branch to trunk: r19975: Fixed potential mem leak at H5O_attr_open_by_name r19980: Fix coverity issue 792. Free tmp_env_prefix in H5Lexternal.c line 365 if it is not NULL but its contents are 0 when it goes out of scope. r20039: Eliminate warnings about nested extern and implicit declarations of parallel_print and address Coverity defects 712-781 by #including h5tools_utils.h in h5diff_array.c, h5diff_attr.c, h5diff_dset.c and h5diff_util.c. r20046: Purpose: Address TOCTOU warnings in h5jam and h5unjam Description: Coverity is afraid that the state of the input file could change between the call to stat() and the call to open(). This is called a time-of- check time-of-use (TOCTOU) vulnerability. Modified stat calls to fstat which uses an open file pointer so it (hopefully) won't complain any more. r20047: Addressed coverity issues 135-137, 462-464. Local pointers that needed to be freed in case of error were moved out of a switch statement in src/H5Tnative.c, set to NULL, and checked before freeing. Tested on: Mac OS X/32 10.6.6 (amazon) w/debug & production (h5committested on Coverity branch)
* [svn-r20050] Description:Quincey Koziol2011-02-051-18/+21
| | | | | | | | | | | Bring sec2 and log VFDs back into agreement. Correct several compiler warnings. Also add some additional statistics to the log VFD and promote the parameter for H5Pset_fapl_log from 'unsigned' to 'unsigned long long'. Tested on: Mac OS X/32 10.6.6 (amazon) w/debug & production FreeBSD/32 8.2 (loyalty) w/debug FreeBSD/64 8.2 (freedom) w/debug
* [svn-r19989] Description:Quincey Koziol2011-01-251-5/+5
| | | | | | | | | | Finish implementing time tracking for read & seek operations in the 'log' VFD. Also clean up code and track total time during all read/write/seek operations. Tested on: Mac OS X/32 10.6.6 (amazon) w/debug & production (too minor to require h5committest)
* [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-r8134] Purpose:Quincey Koziol2004-01-311-0/+1
| | | | | | | | | | | | | | | | Code cleanup Description: Add destructor to match constructor fr VFLs when they are shut down by the library. Solution: Added H5FD_*_term() routines to "undo" changes made in H5FD_*_init() routines. Platforms tested: IBM p690 (copper) too minor to require h5committest
* [svn-r7181] Purpose:Quincey Koziol2003-07-071-4/+0
| | | | | | | | | | | Version update Description: Removed 1.4 compatibility code in the library. Platforms tested: FreeBSD 4.8 (sleipnir) h5committest
* [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-r6252] Purpose:Quincey Koziol2003-01-091-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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-r5931] MuQun Yang2002-09-201-3/+3
| | | | | | | | | | | | Purpose: __DLL__ is a keyword in some platforms and __DLL__ is also defined as a macro for windows DLL applications. That causes problems. Description: Solution: Use H5_DLL*** to replace __DLL***__ at all header files. Change the macro defination at H5api_adpt.h. Platforms tested: linux2.2.18smp, irix64, solaris 2.7 and windows 2000
* [svn-r4673] Purpose:Quincey Koziol2001-12-051-0/+4
| | | | | | | | | | | | | | Backward Compatibility Fix Description: H5Pset_fapl_log's parameters have changed from a simple "verbosity" level to bit-masked flags to enable various behaviors. Solution: Added in v1.4 compat stuff, on the unlikely chance that others are actually using this code in some production way. There are no C++ or FORTRAN wrappers for this call. Platforms tested: FreeBSD 4.4 (hawkwind)
* [svn-r4665] Purpose:Quincey Koziol2001-12-031-1/+29
| | | | | | | | | Code cleanup Description: Changed the logging file driver to use bitmasked flags for features to enable, instead of using a verbosity level. Platforms tested: Solaris 2.6 (baldric)
* [svn-r4275] Bill Wendling2001-07-301-1/+0
| | | | | | | | | | | | | | | | | | | | | | Purpose: Bug Fix Description: Forward port of the bug fix to the 1.4 branch reguarding the C++ compile error. Solution: Need to put #ifdef __cplusplus extern "C" { #endif /* ... */ #ifdef __cplusplus } #endif around function declarations.
* [svn-r3885] Purpose:Quincey Koziol2001-05-021-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | Document bug fix Description: IMPORTANT! IMPORTANT! IMPORTANT! A case where metadata in a file could get corrupted in certain unusual sitations was detected and fixed. In certain circumstances, metadata could get cached in the raw data cache, and if that particular piece of metadata was updated on disk while incorrectly cached, the new metadata would get overwritten with the stale metadata from the raw data cache when it was flushed out. Additionally, I've patched up the raw data cache to be smarter about how much it caches and how much I/O it triggers, leading to some speedups. Solution: Changed the raw data I/O routines which perform caching to require a parameter with the size of the dataset being accessed and limited the cache to no more than that many bytes. Platforms tested: FreeBSD 4.3 (hawkwind)
* [svn-r3781] Purpose:Bill Wendling2001-04-051-3/+3
| | | | | | | | | | | | | | | | | | Update Description: Changed #include <hdf_file.h> construct to #include "hdf_file.h" so that the GNU compiler can more easily pick up the dependencies which it places in the .depend and Dependencies files. Also regenerated the Dependencies to go along with this. Platforms tested: Linux
* [svn-r2652] Purpose:Quincey Koziol2000-10-101-1/+1
| | | | | | | | | | | | | | | Maintainance & performance enhancements Description: Re-arranged header files to protect private symbols better. Changed optimized regular hyperslab I/O to compute the offsets more efficiently from previous method of using matrix operations. Added sequential I/O operations at a more abstract level (at the same level as H5F_arr_read/write), to support the optimized hyperslab I/O. Platforms tested: Solaris 2.6 (baldric) & FreeBSD 4.1.1 (hawkwind)
* [svn-r2474] Updated some old variables to the proper names, added seek ↵Quincey Koziol2000-08-161-1/+1
| | | | | | logging and added test code for aggregating metadata into more localized locations in the file.
* [svn-r2223] Added logging version of sec2 file driver. This is _reallly_ ↵Quincey Koziol2000-05-081-0/+21
useful for tracking the actual I/O locations and space used in a file during an application.