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2023-01-30 Ron Norman <rjn@inglenet.com>
* Updates to use the same index header as C|D-ISAM
* Fixes for Variable Length processing but still more
work needed in ischeck
2021-02-18 Ron Norman <rjn@inglenet.com>
* Renamed to V-ISAM
2021-01-25 Ron Norman <rjn@inglenet.com>
* Removed use of likely/unlikely
* isinternal.h: added VBDICTNODE and CIDICTNODE
moved fields from DICTNODE to DICTINFO for runtime usage
* vbmemio.c: Added vvbfreedict and changed isbuild & isopen to use it
* All modules: changed to reference data field instead of DICTINFO
Use of #if ISAMMODE replaced with check for iformat == x_ISAM_FILE
Many uses of inl_stquad/inl_ldquad replaced by compx routines
2020-12-31 Ron Norman <rjn@inglenet.com>
* Summary of changes made the past few months:
Most of the changes are related to correctly handling
an ISAM file in C-ISAM format
Some changes are just tidy up of the coding style.
Some changes are related to when LOGGING is not requested
At the entry to an ISAM API function vbclrstatus is called
to reset all of the status flags.
On exit from an ISAM API function vbsetstatus is called
which sets the 'isstat1' & 'isstat2' values.
* isinternal.h: Numerous changes including a rewrite of the routines
for load/store of binary values
* isbuild.c: the high order bits of 'mode' parameter are used to
pass the size of the duplicates number in the index and
the size of the index blocks divided by 512.
Changes to look for 'filename' as well as 'filename.dat'
* ischeck.c: Changes to rebuild the ISAM file and put it back as the
name of the original. It used to leave it with a temp name.
* ishelper.c: fixed code to 'fsync' on correct 'fd' value.
* vbkeysio.c: add check to return 02 status for duplicate key ahead
* vblocking.c: Added the new functions vbclrstatus and vbsetstatus
vbdatfilename returns the name of the ISAM data file.
Other changes related to 'locking' using values to match C-ISAM
* vbnodememio.c: Changes for C-ISAM compatibility, mostly handling a
'duplicate' value of 2 or 4 bytes long
2020-12-31 Simon Sobisch <simonsobisch@gnu.org>
* vbnodemio.c (iquicknodesave): remove some recalculation
2020-12-29 Ron Norman <rjn@inglenet.com>
* isinternal.h: Rewrite of inl_ld/st routines to correctly handle all cases
* general: Numerous other changes to remove compiler warnings
2020-12-27 Simon Sobisch <simonsobisch@gnu.org>
* Makefile.am: cleanup and comments
* Makefile.am: depending on CISAM_MODE generate libvbcisam or libvbisam
2020-12-14 Ron Norman <rjn@inglenet.com>
* Numerous updates to correctly support --with-compatcisam
and process data files in correct C-ISAM format
* Added extern int IsamDupWidth which defines width of 'dupnumber'
this may be either 2 or 4 and defaults to 2 for C-ISAM mode
In VB-ISAM mode, it is actually 8
* Added extern int IsIDXBLOCK which defines index node size
this is between 1024 and 2048 for C-ISAM
this is 4095 for VB-ISAM mode
2020-11-13 Ron Norman <rjn@inglenet.com>
* Several updates to correctly support --with-compatcisam
and process data files in correct C-ISAM format
2014-09-05 Ron Norman <rjn@inglenet.com>
* Added NULLKEY to vbisam.h
* The character to be tested is put into top byte of keydesc.kp_type
so code referencing kp_type needs to do & BYTEMASK
Changes to isread.c and ischeck.c to use BYTEMASK
Changes to vbkeysio.c in the routine ivbkeyinsert to check for NULLKEY
then scan key value and if NULL do not insert to that index
2008-10-26 Cobol-IT
* vbdataio.c fct ttailnode correct group looking for variable length record
* vbdataio.c fct ivbdataread ivb datawrite debug for variable length record
2008-08-02 Roger While <simrw@sim-basis.de>
* byteswap.h : Fix for broken gcc 3 versions
2007-11-27 Roger While <simrw@sim-basis.de>
* 2.0 release. Lots of changes.
2005-02-26 Roger While <simrw@sim-basis.de>
* 1.04 release. First release of libtoolized version.
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