* harbour/source/rdd/dbcmd.c
* initialize lpaParent in DBRELINFO structure to pArea - please
note that this initialization is ignored by default SETREL()
RDD method
* harbour/source/rdd/usrrdd/usrrdd.c
! fixed GPF when NULL lpaParent or lpaChild was used in DBRELINFO
structure
* harbour/source/rdd/wacore.c
* harbour/source/vm/classes.c
* harbour/include/hbapirdd.h
* harbour/source/compiler/hbmain.c
* updated HB_TRACE messages and some minor cleanups
* harbour/source/rdd/dbcmd.c
! fixed initialisation of DBRELINFO dbSetRelation() - thanks to Antonio
for locating the problem
* harbour/source/rtl/idle.c
* increase timeout in nanosleep() from 1 microsecond to 1 millisecond
- removed some wrong comment
* harbour/source/vm/classes.c
* changed __cls_IncData() to return index to newly allocated instance
item and __cls_DecData() to return number of local (not inherited)
instance items
* harbour/contrib/Makefile
* harbour/contrib/bmdbfcdx/Makefile
* harbour/source/rdd/Makefile
! fixed GNU make compilation
* harbour/include/hbapifs.h
* harbour/source/rtl/filesys.c
+ added support for DOS/Windows DENY_* flag emulation in POSIX
systems using BSD locks. So far such emulatin was done with
standard POSIX locks. The new emulation can be enabled by setting
HB_USE_BSDLOCKS and disabled by HB_USE_BSDLOCKS_OFF. By default
it's enabled in Linux and BSD* based systems.
Please not that it BSD locks work in differ way then POSIX ones.
They are bound with file handle and process ID not i-node and PID.
It will allow to synchronize even single process but it will not
work in NFS and some old BSD and Linux kernels. This synchronization
cannot be used also between different platforms. If someone needs
such synchronization then he should build Harbour on all platforms
with HB_USE_BSDLOCKS_OFF and HB_USE_SHARELOCKS with valid multi
platform lock offset
* harbour/source/rdd/dbcmd.c
* removed all explicit NETERR setting - now it can be set only
by NETERR() function (executed by default errorsys)
* changed ordListAdd()/dbSetIndex() - now they return logical value
with information about success
* harbour/source/rdd/wafunc.c
* changed hb_rddOpenTable()/hb_rddCreateTable() to make dbUseArea()/
dbCreate() more Clipper compatible - it's not exact Clipper behavior
but I intentionally do not want to replicate some strange for me
things, f.e. I do not know why Clipper ignores RDDNAME when it has
only one character
+ harbour/tests/tstuse.prg
+ test code for dbUseArea()
* source/rdd/wafunc.c
* change of the behavior of DbUseArea opening, so that one behaves like made Clipper, when it fails the
opening of a table, does not recover the previous area.
+ contrib/bmdbfcdx/Makefile
+ contrib/bmdbfcdx/bmdbfcdx1.c
+ contrib/bmdbfcdx/bmsixcdx1.c
+ contrib/bmdbfcdx/hbrddbmcdx.h
+ contrib/bmdbfcdx/make_b32.bat
+ contrib/bmdbfcdx/makefile.bc
+ contrib/bmdbfcdx/readme.txt
+ BMDBFCDX RDD:
Is a DBFCDX RDD compatible with clipper 5.3, use SET OPTIMIZE ON to make a
static bitmap filters, with SET OPTIMIZE OFF works as harbour DBFCDX.
Addons:
BM_DbSeekWild( uKey, [lSoftSeek], [lFindLast], [lNext], [lAll] ) => .T./.F. or aSeekRec when lAll clause
BM_Turbo( lOnOff ) // Is only recomendable to use it on creating FILTERS
BM_DbGetFilterArray() => aFilterRec
BM_DbSetFilterArray( aFilterRec )
BM_DbSetFilterArrayAdd( aFilterRec )
BM_DbSetFilterArrayDel( aFilterRec )
Respecting command:
SET OPTIMIZE
Change the setting that determines whether to optimize using the open orders
when processing a filtered database file
------------------------------------------------------------------------------
Syntax
SET OPTIMIZE ON | OFF | (<lToggle>)
Arguments
ON enables optimization.
OFF disables optimization.
<lToggle> is a logical expression that must be enclosed in
parentheses. A value of true (.T.) is the same as ON, and a value of
false (.F.) is the same as OFF.
Note: The initial default of this setting depends on the RDD.
Description
For RDDs that support optimization, such as BMDBFCDX, SET OPTIMIZE
determines whether to optimize filters based on the orders open in the
current work area. If this flag is ON, the RDD will optimize the search
for records that meet the filter condition to the fullest extent
possible, minimizing the need to read the actual data from the database
file.
If this flag is OFF, the RDD will not optimize.
Examples
¦ The following example enables optimization for the Inventor
database file using the SET OPTIMIZE command:
USE Inventor NEW VIA "BMDBFCDX"
SET OPTIMIZE ON
* harbour/common.mak
* harbour/include/hbapirdd.h
- harbour/include/hbrddwrk.h
* harbour/source/rdd/Makefile
+ harbour/source/rdd/wacore.c
+ harbour/source/rdd/wafunc.c
* harbour/source/rdd/workarea.c
* cleaned RDD code:
* the default work area implementation from which each RDD inherits
and RDD management is now in workarea.c file - this part will be
common for all threads in future MT version
* the code to mange workareas and aliases moved to wacore.c - this
code uses some static variables which will be moved to HVM stack
in MT version
* helper RDD functions thread independent moved to wafunc.c
* harbour/source/rdd/dbcmd.c
* removed RDD/WorkArea management code - only independent HB_FUNCs
left. IMHO it will be good to divide this file into few ones.
* changed dbCreate() and dbUseArea() to return logical value
* harbour/config/global.cf
- removed nulsys from linked library list - it should not be here
because it can confuse some linkers and wrong library will be
created
* harbour/contrib/rdd_ads/ads1.c
* harbour/source/rdd/dbf1.c
* harbour/source/rdd/delim1.c
* harbour/source/rdd/sdf1.c
* harbour/source/rdd/dbfcdx/dbfcdx1.c
* harbour/source/rdd/dbfdbt/dbfdbt1.c
* harbour/source/rdd/dbffpt/dbffpt1.c
* harbour/source/rdd/dbfntx/dbfntx1.c
* harbour/source/rdd/nulsys/nulsys.c
* updated for recent modifications in RDD API
* harbour/include/hbextern.ch
- removed __RDDSETDEFAULT() - this function was necessary with old
rdd register code and we not not need it for few years. It's not
Clipper function so I do not see any reason to keep it but if you
want we can add wrapper to standard RDDSETDEFAULT()
* harbour/source/rdd/hbsix/sxcompr.c
+ added workaround for SIX3 bug which I intentionally replicated in
[x]Harbour but it may cause data corruption so IMHO it will be better
to fix it.
* harbour/source/rtl/errorsys.prg
* added default action for EG_LOCK - it's Clipper compatible behavior
but done in differ way. Due to some differences in linker we are
using we cannot exactly replicate Clipper behavior because it will
not work on some platforms as expected so I decided to add it here.
I think it's even more Clear then the trick with source/sys/ntxerr.prg
done by Clipper. Many people do not even knows about it.
* harbour/source/rtl/gtcrs/chrmap.c
* changed environment variable name from HB_CHRMAP to HB_CHARMAP to
be compatible with description in default map file
