* include/harbour.hbx
* src/vm/hvm.c
+ added new PRG function:
__RecoverErrorBlock() -> <bError> | NIL
It extracts previous error block pushed on HVM stack
by BEGIN SEQUENCE WITH ...
* src/rdd/dbf1.c
! fixed detecting VFP tables broken in my previous
modification - thanks to Mario H. Sabado for information
about the problem.
* config/dos/watcom.mk
* config/win/watcom.mk
* config/linux/watcom.mk
! enabled -bd OpenWatcom switch for code compiled as part of dynamic
libraries
* use CauseWay as default DOS extender for dynamic DOS builds
* config/dyn.mk
* config/lib.mk
* src/Makefile
! fixed list of libraries used to create Harbour DLL in DOS builds
* config/bin.mk
* src/vm/Makefile
* create hbmainstd library for OpenWatcom DOS shared builds
* src/vm/maindllh.c
+ added DLL entry function for CauseWay DLLs in OpenWatcom builds
* src/vm/main.c
* include maindllh.c in OpenWatcom DOS shared builds
* utils/hbmk2/hbmk2.prg
+ added support for dynamic binaries in DOS OpenWatcom builds.
Support for CauseWay DLLs is still broken in current OpenWatcom
builds so it will have to wait for the fix to be usable.
* src/vm/dynlibhb.c
+ added support for dynamic libraries to OpenWatcom DOS builds.
Now it's enabled only in harbour.dll due to problems with
CW and current OW.
* src/3rd/zlib/zconf.h
* src/3rd/zlib/zlib.dif
* use OS2 patch for exporting ZLIB symbols also in DOS builds
* src/rdd/dbf1.c
* pacified warning
* include/dbinfo.ch
* include/hbrdddbf.h
* src/rdd/dbf1.c
+ added new RDD switch RDDI_SETHEADER
It allows to define how DBF header is updated in tables which
will be opened later, i.e.:
// maximize performance reducing number of DBF header updating
// header is updated only when table is closed if before new
// record was added
hb_rddInfo( RDDI_SETHEADER, DB_SETHEADER_MINIMAL )
or:
// update header in the same moment as Clipper and xBase++
// and store only last two digit from the year for compatibility
// with old dBase and FoxPro versions
hb_rddInfo( RDDI_SETHEADER, ;
hb_bitOr( DB_SETHEADER_CLIPPER, DB_SETHEADER_YYEAR ) )
// DB_SETHEADER_CLIPPER
By default Harbour uses DB_SETHEADER_APPENDSYNC.
For more information look at comments for DB_SETHEADER_* switches
in dbinfo.ch
+ added new table switch DBI_SETHEADER
It has the same meaning as RDDI_SETHEADER but changes the header
updated mode of already open table by dbInfo() function.
* src/rtl/filebuf.c
! added missing redirection for Configure() method.
* src/rtl/hbproces.c
! fixed sysconf() emulation for OpenWatcom 1.9 and earlier to work with
_SC_PAGESIZE
* src/rdd/dbf1.c
* update DBF header only after modification in COMMIT and CLOSE methods.
It's Cl*pper and xBase++ compatible behavior anyhow it also means that
number of records in DBF header is not modified just after APPEND
so it cannot be used to synchronization in concurrent file access.
* src/rtl/hbproces.c
! safe and restore hb_fsError() when unused pipe handles are closed
in hb_fsProcessOpen()
! add extension (.com or .exe) in hb_fsProcessOpen()/hb_fsProcessRun()
when executed command is given with PATH part and without extension.
It's documented that DosExecPgm() needs full filename in such case.
It fixes problem with contrib/make.hb which calls hbmk2 with directory
part but without extension.
! enabled pipes instead of temporary files for stdio redirection in OS2
builds of hb_fsProcessRun() - now it should work correctly.
* src/rtl/hbprocfn.c
+ update FError() in hb_Proces*() functions
* include/harbour.hbx
* src/rtl/dateshb.c
+ added two new PRG functions:
hb_SecToT( <nSeconds> ) -> <tTime>
hb_MSecToT( <nMilliseconds> ) -> <tTime>
* include/hbset.h
* src/vm/set.c
+ added new C function:
int hb_setUpdateEpoch( int iYear );
if necessary it converts year respecting _SET_EPOCH settings
* src/rtl/dates.c
* use hb_setUpdateEpoch() instead of local code
* src/rdd/dbf1.c
! respect _SET_EPOCH decoding DBF update time from DBF HEADER
(LUpdate() function).
It's not Cl*pper compatible anyhow looks that most of tools
stores only last two digits from the year (just like in the
DBF documentation) and -1900 trick is not used so it helps
to decode correct update date.
* store 'year % 100' instead of 'year - 1900' in DBF header
when DBF table with VFP signature is used (DB_DBF_VFP).
* include/hbapirdd.h
* src/rdd/wacore.c
* changed 4-th parameter of hb_rddRequestArea() from HB_BOOL fWait to
HB_ULONG ulMilliSec
[INCOMPATIBLE]
* src/rdd/dbdetach.c
+ accept optionally as 4-th parameter of hb_dbRequest() numeric value
with timeout in seconds. The previous version using xBase++ compatible
parameters (logical value <lWait> in 4-th parameter) is still working.
; above modifications are based on request and patch sent to harbour-devel
list by Rolf (many thanks), ref:
https://groups.google.com/forum/?hl=pl#!topic/harbour-devel/Pu2b1M5VXjU
* src/rdd/dbf1.c
+ reserve space for DBC name in newly created DBF files with VFP DBF
signature, Thanks to Nikos Christophi, Jeff Stone and other who
reported this problem.
+ added RTE when size of DBF header is exceed by "_NullFlags" field
* src/vm/thread.c
! typo in comment
* ChangeLog.txt
! fixed typo in ChangeLog entry. I used hb_socketNew() instead of
hb_socketSetFilter()
* include/hbapifs.h
* src/rtl/filebuf.c
+ added helper C function:
HB_SIZE hb_fileResult( HB_SIZE nSize );
It converts ( HB_SIZE ) FS_ERROR to 0 so it can be used to wrap
hb_fileRead()/hb_fileWrite() to force previous results.
* src/rdd/dbffpt/dbffpt1.c
* reduced variable scope
* src/rtl/copyfile.c
! fixed typo in last commit - thanks to Viktor.
* include/hbapifs.h
* src/rtl/filebuf.c
* src/rtl/filebufd.c
* src/rtl/filesys.c
* src/rtl/vfile.c
* src/rtl/iousr.c
* src/rdd/dbfcdx/dbfcdx1.c
* src/rdd/dbffpt/dbffpt1.c
* src/rdd/dbfnsx/dbfnsx1.c
* src/rdd/dbfntx/dbfntx1.c
* src/rdd/hsx/hsx.c
* contrib/hbcomio/comio.c
* contrib/hbmemio/memio.c
* contrib/hbtcpio/tcpio.c
* contrib/hbnetio/netio.h
* contrib/hbnetio/netiocli.c
* contrib/hbnetio/netiosrv.c
* changed HB_USHORT uiAttr parameter to HB_FATTR nAttr
in hb_fsExtOpen() and hb_fileExtOpen()
* include/fileio.ch
* src/rtl/vfile.c
+ added support for FO_DEFAULTS in hb_vfOpen().
When this flag is used in <nModeAttr> parameters then new
_SET_DEFAULT is respected when new file is created and
_SET_DEFAULT + _SET_PATH when file is opened.
+ added support for checking file size by it's in hb_vfSize()
so it can work like hb_FSize() but for virtual FS not only
for local files. Now this function has the following syntax:
hb_vfSize( <pHandle> | <cFileName> [, <lUseDirEntry> ] ) -> <nSize>
The 2-nd parameter <lUseDirEntry> is significant only when
the 1-st one <cFileName> is character value.
* src/rtl/gttrm/gttrm.c
* replaced C++ comments with ANSI ones
* src/rtl/vfile.c
* updated casing of function names in comments
* return F_ERROR instead of NIL hb_vfHandle() when wrong parameter
is given (borrowed from Viktor's branch)
* added C function hb_fileParamGet() borrowed from Viktor's branch
* src/rtl/filesys.c
* variable localization (synced with Viktor's branch)
* src/rtl/disksphb.c
! fixed bug with potentially uninitialized buffer
(fix borrowed from Viktor's branch)
* src/rdd/workarea.c
! fixed typo in RDDI_AUTOORDER type - it should be numeric
just like in _SET_AUTORDER. Many thanks to Rolf for locating
the problem
* src/debug/dbgentry.c
! fixed typo in my previous commit for AltD() function detection
Thanks to Franček Prijatelj for reporting the problem and Abe
for self contain example
* src/rdd/dbfcdx/dbfcdx1.c
* reverted byte order in Harbour CDX signature - by mistake I used
little endian. When existsing index is open then reverted signatures
are accepted for backward compatiblity though they will be removed
in the future.
* src/rdd/workarea.c
* move results of EVALBLOCK() RDD method from Harbour stack return item
to workarea valResult item instead of copping it.
; Warning: This modification may exploit problems in code which
wrongly looks for result of EVALBLOCK() RDD method in
HVM stack return item instead of workarea valResult item.
* include/hbapirdd.h
* include/hbusrrdd.ch
+ added DBTF_RECALL flag which disables transferring record DELETED flag
* src/rdd/dbcmd.c
* src/rdd/workarea.c
! disable transferring DELETED flag to destination area in SORT TO /
__dbArrange() operations
* src/rdd/delim1.c
* src/rdd/sdf1.c
+ added dummy RECALL() methods - now RECALL() can be executed by workarea
TRANSREC() method when DBTF_RECALL flag is set
* src/rdd/dbf1.c
! restored the line with initialization of allocated memory buffer
I deleted by mistake removing my private comments before commit.
Without this line sort could randomly crash on small tables (less
then 65537 sorted records)
* include/Makefile
- include/hbdbsort.h
* src/rdd/Makefile
- src/rdd/hbdbsort.c
* src/rdd/dbf1.c
- completely removed old code used in DBF* RDDs as low level backend
for SORT TO ... command and __dbArrange() function.
It was buggy and extremely inefficient in some cases, i.e. after
20 hours I killed process which was sorting table with 2'000'000
records in reverted order so I cannot even say how much time it
needed.
* src/rdd/dbf1.c
+ added new code for table sorting in DBF* RDDs
(SORT TO ... / __dbArrange() backend)
New code fixes many different problems which existed in previous one
like missing support for national collation, wrong descending orders,
wrong sorting of numeric fields with negative values, missing support
for sorting many field types, missing support for transferring MEMO
fields, missing support for transferring records to table with different
field structure or serving by different RDD, etc.
New code is also many times faster then the old one. In practice it
means is now usable for tables with more then few thousands records,
i.e. the test table with 2'000'000 records I used with old code was
copied in sorted order in 13 secs. when pure COPY TO needed 10 secs.
Now it's possible to export sorted tables to different RDDs, i.e.
using DELIM or SDF RDDs in desitnation area.
New code is written in general form without any local to DBF* RDDs
extensions so it can be adopted as base in any other RDD. Probably
I'll move it to default workarea methods so it will be inherited by
all Harbour RDDs and only if necessary authors of some RDDs may
overload it, i.e. to move the operation to the server side in remote
RDDs when source and destination tables are processed by the same
server.
This modification closes the last known for years bug or rather bag
of bugs ;-) in Harbour.
; NOTE: For large tables new sorting algorithm may access source records
more then once. It means that results may be wrongly sorted when
sorted fields in exported records are modified concurrently by
other station during exporting. This can be easy eliminated by
copping source records to temporary file anyhow it will introduce
additional overhead in all cases and user can easy eliminate the
problem by simple FLOCK before sort or making export to temporary
file and then sorting this file or he can simply ignore this
problem as unimportant in the specific situation so I decided to
not implement double copping.
I haven't tested what Cl*pper exactly does in such case so
I cannot say if current behavior is or isn't Cl*pper compatible.
* src/rdd/dbcmd.c
! fixed __dbArrange() to allow record transfer with the same conditions
as __dbTrans() just like Cl*pper does.
Low level RDD code should respect it, i.e. it should be possible to
sort using fields which exist only in source workarea, the order
and number of fields in source and destination workareas can be
completely different, etc.
Low level DBF* SORT() method is completely broken in such cases and
has to be rewritten.
* contrib/hbtip/smtpcli.prg
! do not execute STARTTLS command if server does not report it's supported
(issue #90)
* src/rdd/dbcmd.c
* use DBI_TRANSREC in __dbTrans() and __dbArrange() (pure record copping
without sorting)
* include/hbapi.h
* src/vm/garbage.c
+ added hb_gcDummyClear() function
* include/hbapirdd.h
* include/hbusrrdd.ch
+ added DBTF_CPYCTR constant value - when set in dbTransInfo.uiFlags
then after record transfer field counters should to be copied from
source to destination area
* include/hbapirdd.h
* src/rdd/wafunc.c
+ added new C functions hb_dbTransInfoPut() and hb_dbTransInfoGet()
which allow to store and retrieve pointer to DBTRANSINFO structure
into/from HB_ITEM with strict type verification.
* src/rdd/wafunc.c
* pass pointer to DBTRANSINFO structure as argument of DBI_TRANSREC
action. It allows RDD serving destination area to decide which
fields and how should be transferred updating uiFlags, uiItemCount
and lpTransItems members of DBTRANSINFO.
If RDD removes all fields from DBTRANSINFO structure (uiItemCount==0)
or does not return HB_SUCCESS for DBI_TRANSREC action (default WA
implementation returns HB_SUCCESS so it's not necessary to overload
it if RDD does not make any additional operations) then record
transfer is interrupted.
* copy field counters only when destination area asked about it setting
DBTF_CPYCTR in dbTransInfo.uiFlags in DBI_TRANSREC action.
* src/rdd/dbf1.c
* do not copy automatically updated fields when destination area
is not empty
* set DBTF_CPYCTR to indicate that counters should be copied from
source to destination area when original value of automatically
updated fields are transferred
; Now DBF* RDDs in Harbour respects the following rules for record
transfer operations (COPY TO / APPEND FROM) with automatically
updated fields:
- COPY TO transfers original values to destination table and
finally copy counters from the source table to destination one
so autoincrement fields in both tables after next append will be
initialized with the same values regardless of number of copied
records - even if only single record is copied then counters in
destination table will inherit next values for new record from
the source table. Also values of RowVer and ModTime fields are
copied from source to destination table and not updated during
transfer operation.
- APPEND FROM works like COPY TO (original field values and then
counters are copied to destination table) if the source table
supports counters and destination table is empty and FLocked()
or opened in exclusive mode.
If source table does not support counters for given fields, i.e.
it is processed by transfer RDD like DELIM or SDF (RDT_TRANSFER)
or destination table is not empty or opened in shared mode and
FLock is not set when APPEND FROM is executed then automatically
updated fields (counters, RowVer, ModTime) are not copied and
initialized with new values like for each new record added to
destination table.
* ChangeLog.txt
! typo in last ChangeLog entry
* src/rdd/dbf1.c
* src/rtl/hbinet.c
* pacified warnings (Thanks to Grigory)
* src/rdd/dbcmd.c
* src/rdd/wafunc.c
* small code simplification and cleanup
! protection against GPF when wrong parameters are passed to __dbArrange()
+ added support for transferring records using __dbArrange() to area with
different fields order (low level driver may refuse to finish such
operation but not it's possible.
* contrib/rddads/ads1.c
! use AdsSetLongLong() (if available) instead of AdsSetDouble() to not
strip less significant bits from 64bit integer number during conversion
to double
* allow ADS to decide if writing into rowver and modtime fields is legal
instead of generating our own arbitrary RTE
* include/dbinfo.ch
* src/rdd/workarea.c
+ added new dbInfo() action DBI_TRANSREC
It indicates if area is destination table of currently processed COPY TO
or APPEND FROM operation.
* include/hbapirdd.h
* src/rdd/wafunc.c
+ added new C function:
HB_ERRCODE hb_dbTransCounters( LPDBTRANSINFO lpdbTransInfo );
It copies field counters from source into destination table used
in transfer operation.
* src/rdd/dbcmd.c
* src/rdd/wafunc.c
+ call DBI_TRANSREC to inform destination area that record transfer
operation starts and stop. It allows destination RDD to change
rules used for assign to automatically updated fields, i.e. unblock
such operation.
+ call hb_dbTransCounters() to update counters in destination table
after COPY TO operation
* src/rdd/sdf1.c
* src/rdd/delim1.c
* clear AutoInc flag
* src/rdd/dbf1.c
+ allow to set get and set counter for RowVer fields using DBS_COUNTER
action
* return HB_FAILURE for DBS_COUNTER and DBS_STEP if it's not supported
by given field.
+ added support for DBI_TRANSREC - in case of DBF* RDDs it unblocks
writing to automatically updated fields
* src/rdd/delim1.c
* src/rdd/sdf1.c
! disabled code which allows to delete just added record.
It was not Cl*pper compatible and caused bad side effects
in COPY TO ... DELIM | SDF - deleted records were nor
copied
* src/rdd/dbf1.c
+ added support for autoincrement fields with counter longer then 4 bytes
Warning: if someone created tables with such fields i.e. { "I:+", 8, 0 }
after my modification which added support for AutoInc flags in
all numeric DBF fields then he should update counters manually
using DBS_COUNTER flag. New code uses 64bit counters for such
field located in different part of DBFFIELD structure.
* src/rdd/dbf1.c
* moved AutoInc field initialization to separate function
% removed unnecessary AutoInc initialization from RowVer fields
* cleanup few static function names
* src/rdd/dbf1.c
+ finished support for AutoInc flag (+) for all numeric fields (N, F, I, B)
in DBF* RDDs. Now user can define field like:
{ "COUNTER", "I:+", 4, 0 }
and they will work like autoincrement fields but without any assign
restrictions.
* src/rdd/workarea.c
+ added support for field flags in dbCreate()/dbStruct().
Flags can be passed in string with field type after ":", i.e.
"C:U"
means Unicode character field.
The following flags are recognized:
"N" - column can store null values
"B" - binary column
"+" - column is autoincrementing
"Z" - column is compressed
"E" - column is encrypted
"U" - column stores Unicode strings
* src/rdd/dbf1.c
+ added support for field flags in core DBF* RDDs.
; In core DBF* RDDs "N", "B", "U" and "+" flags are supported.
When "N" flag is used then special hidden field with NULL bits
is created. Such implementation is compatible with DBF created
by VFP.
* contrib/rddads/ads1.c
+ added support for field flags in ADS* RDDs
! added missing RTE when wrong field types are passed to dbCreate()
; The old format with long field names corresponding to ADS types is
still supported but I had to rewrite this code so please make real
life test and verify me. In few cases I slightly change the code and
now it can be a little bit more restrictive, i.e. typos in "AtutoInc"
field type will be detected (previous code checked only for 1-st
letter "A").
* include/dbinfo.ch
+ added new rddInfo() action: RDDI_DECIMALS
* include/hbrdddbf.h
* src/rdd/dbf1.c
+ added support for RDDI_DECIMALS - when set it's used as default number
of decimal places in conversions to string for fields type "B" and "8"
with 0 number of decimal places in DBF header.
* ChangeLog.txt
* doc/xhb-diff.txt
! typos
* doc/clipper.txt
! removed completely false information about 'LIST &cMacro'
* updated information about FOR EACH
; in general information in this file are outdated and does not
correctly describe current Harbour behavior. I strongly suggest
to not use it in any other documentation. In some spare time
I'll update this file or remove.
* doc/cmpopt.txt
+ added information about unsupported by Clipper syntax extension:
iif( <expr1>, <expr2>, <expr3> ) <op>= <expr4>
* include/hbrddnsx.h
* minor modification in comment
* src/macro/macrolex.c
* accept unconditionally hash 'key => value' operator
* src/rdd/dbfnsx/dbfnsx1.c
! fixed very bad bug in leaf key compression. This problem could be
exploited by keys containing containing CHR( 255 ) in encoded keys
just before trailing empty key characters.
This bug could cause index corruption.
* use hb_xgrabz()
* formatting
* contrib/rddads/ads1.c
* contrib/rddads/adsfunc.c
* contrib/rddads/rddads.h
+ added support for RDDI_INDEXPAGESIZE in ADI indexes
* src/rdd/dbf1.c
* minor cleanup
* include/hbrddcdx.h
* src/rdd/dbfcdx/dbfcdx1.c
+ added support for long index keys when bigger pages are used.
Now maximum index key size is 4082 for 8192 bytes length index pages.
Indexes are critical for database applications so please make
tests with current code and report problems if you find any.
* include/hbrddcdx.h
* src/rdd/dbfcdx/dbfcdx1.c
* renamed CDX_TYPE_TEMPORARY to CDX_TYPE_PARTIAL
* eliminated Temporary member from CDXTAG structure
* cleaned tag signature flag setting to strictly follow
CL5.2 (SIx3) and CL5.3 (COMIX)
* contrib/rddads/ads1.c
* contrib/rddads/adsfunc.c
! check if AE_VALUE_OVERFLOW macro exists before use
! fixed memory leak
% use char* instead of UNSIGNED8* to eliminate unnecessary casting
* use HB_IT_EVALITEM instead of HB_IT_BLOCK
* formatting and minor cleanups
* include/hbrddcdx.h
* src/rdd/dbfcdx/dbfcdx1.c
* modifications for longer index keys when bigger pages are used
(work in progress)
* include/hbrddcdx.h
* src/rdd/dbfcdx/dbfcdx1.c
* force default index page size when CDX header does not contain
Harbour signature
* added RTE when index expression returns item with unsupported
type during indexing
* modifications for longer index keys when bigger pages are used
(work in progress)
* formatting
* include/hbrddcdx.h
* src/rdd/dbfcdx/dbfcdx1.c
* added support for user defined index page size in DBFCDX.
To change page size for newly created index it's enough to call:
hb_rddInfo( RDDI_INDEXPAGESIZE, <nNewSize>,, "DBFCDX" )
DBFCDX accepts page sizes which are power of 2 in from 512 to 8192.
The upper range is my personal decision and can be easy changed
in Harbour source code. 512 is default CDX index page size and
only such indexes can be read by other RDDs.
In some cases bigger pages can increase performance and reduce
index size. In local networks probably 1024 should give optimal
performance because can be transferred in single ethernet frame.
Just make a tests.
; In next step I plan to add support for longer index keys when
bigger pages are used.
* utils/hbmk2/hbmk2.prg
! added -stop fix borrowed from Viktor's branch
