Commit Graph

53 Commits

Author SHA1 Message Date
Przemyslaw Czerpak
f184dc34f7 2009-04-16 17:55 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/source/vm/garbage.c
    + added optional support for automatic GC activation.
      It's not enabled by default yet but by compilation with macro
      HB_GC_AUTO, f.e. after setting envvar:
         set HB_USER_CFLAGS=-DHB_GC_AUTO
      Automatic GC activation may be necessary for code which creates
      complex variables with cyclic references and does not execute
      any other code which may activate idle state GC call. It also
      makes unnecessary to explicitly call hb_gcAll() from user code,
      f.e. as some type of background task. If some of you were using
      code which needed such explicit GC activation then please remove
      it and make some tests with Harbour compiled with HB_GC_AUTO macro.

      This simple .prg code illustrates the problem. When linked with HVM
      without automatic GC it quite fast allocates all available memory
      and finished with out of memory error or is interrupted by OS.
      When automatic GC is enabled it can work unlimited time period
      with some fixed maximum memory usage.

            proc main()
               local a
               while .t.
                  a:={nil}
                  a[1]:=a
               enddo
            return
2009-04-16 15:48:13 +00:00
Przemyslaw Czerpak
d7af0eb431 2009-04-11 13:04 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/include/hbstack.h
  * harbour/source/vm/macro.c
  * harbour/source/vm/codebloc.c
  * harbour/source/vm/hashes.c
  * harbour/source/vm/dynsym.c
  * harbour/source/vm/itemapi.c
  * harbour/source/vm/garbage.c
  * harbour/source/vm/arrays.c
  * harbour/source/vm/thread.c
  * harbour/source/vm/memvars.c
  * harbour/source/vm/extend.c
  * harbour/source/vm/set.c
  * harbour/source/vm/classes.c
    * updated to optionally compile with HB_STACK_PRELOAD

  * harbour/source/vm/hvm.c
    % small cleanup
2009-04-11 10:57:29 +00:00
Przemyslaw Czerpak
7f1dcb2a81 2009-03-29 19:20 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/include/hbapi.h
  * harbour/include/hbstack.h
  * harbour/source/vm/estack.c
  * harbour/source/vm/fm.c
    + added support for thread local memory allocators by using MSPACE
      mechanism in DLALLOC.
      It can be enabled by compiling Harbour with HB_FM_DLMT_ALLOC macro.
      By default up to 16 (HB_MSPACE_COUNT macro) independent memory
      allocators is dynamically created for new threads. When more threads
      is used then allocators are shared between them and HVM tries to
      balance used allocators to reduce number of threads using the
      same allocator.
      It should give noticeable scalability improvement in some OS-es
      where default memory manages has pure MT performance.
      Please try to compiler speedtst.prg with Harbour compiled with
      and without HB_FM_DLMT_ALLOC and compare results in this test:
         speedtst --thread=2 --scale
      using real multiCPU machine.

  * harbour/source/vm/dlmalloc.c
    * pacified warning when FOOTERS are enabled

  * harbour/source/vm/garbage.c
    * cleanup comment
2009-03-29 17:13:52 +00:00
Przemyslaw Czerpak
58bb9ef089 2009-03-10 12:23 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/source/vm/garbage.c
    ! fixed one bad typo
    * cleanup

  * harbour/tests/speedtst.prg
    + added one new test
2009-03-10 11:17:18 +00:00
Przemyslaw Czerpak
16f9a67e9f 2008-12-02 11:27 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/contrib/xhb/Makefile
  * harbour/contrib/xhb/common.mak
  + harbour/contrib/xhb/xhbarr.c
    + added aSplice(), aRemove() and aMerge() functions - code borrowed
      from xHarbour by Ron Pinkas.
    ! fixed GPF trap in these functions

  * harbour/contrib/xhb/xhbfunc.c
    + added CSTR()

  * harbour/contrib/xhb/hbcompat.ch
    ! changed name of xHarbour include files - they where changed few
      months ago and now they are the same as in Harbour.
      To xHarbour users: please update hbcompat.ch in xHarbour CVS

  * harbour/contrib/xhb/filestat.c
    ! fixed UNICODE compilation

  * harbour/contrib/xhb/hblognet.prg
  * harbour/contrib/xhb/hblog.prg
    * formatting

  * harbour/contrib/hbnf/tempfile.prg
    ! do not use HB_ISBYREF() .prg function - this function does not
      exist in Harbour and does not work correctly in xHarbour

  * harbour/include/hbapiitm.h
  * harbour/source/vm/macro.c
  * harbour/source/vm/codebloc.c
  * harbour/source/vm/hashes.c
  * harbour/source/vm/garbage.c
  * harbour/source/vm/itemapi.c
  * harbour/source/vm/memvars.c
    * cleanup

  * harbour/contrib/gtwvg/Makefile
    ! fixed typo

  * harbour/contrib/gtwvg/hbgtwvg.ch
    * added new line at the end of file and changed non ANSI C // comments
      to /* */ - this file is included by C code too.

  * harbour/contrib/gtwvg/wvgwin.c
  * harbour/contrib/gtwvg/wincallb.c
    * pacified some warnings and fixed possible access to uninitialized data

  * harbour/source/compiler/harbour.y
  * harbour/source/compiler/harbour.yyc
    ! fixed possible double freeing of memory blocks in #line directives
      TOMERGE[1.0]

  * harbour/common.mak
  * harbour/source/compiler/hbmain.c
  + harbour/source/compiler/compi18n.c
    * moved hb_compI18n*() functions to separate file covered by GPL with
      Harbour exception - Thank to Mindaugas

  * harbour/include/hbcomp.h
  * harbour/include/hbcompdf.h
  * harbour/include/hbexpra.c
  * harbour/include/hbexprop.h
  * harbour/include/hbexprb.c
  * harbour/source/common/expropt1.c
  * harbour/source/compiler/Makefile
  * harbour/source/compiler/ppcomp.c
    * added support for plural forms:
         hb_i18n_ngettext[_noop|_strict]( <nExp>, <cText> | <acText> ;
                                          [, <cContext> )
      <acText> is accepted only as array of literal strings even if
      _strict suffix is missing - if it's a problem then we can change it.
      hb_i18n_ngettext_noop() is reduced only when it has valid parameters
      The default plural index expression used for reduction at compile
      time is: iif( <nExp> == 1, 1, 2 )
      If second parameter of hb_i18n_ngettext_noop() is <cText> or <acText>
      length is 1 then it's reduced to <cText> or acText[1] else if second
      parameter is <acText> with more then 1 item then it's reduced to
         <acText>[ iif( <nExp> == 1, 1, 2 ) ]
      and if <nExp> is literal numeric expression is farther reduced to
      given array item. Otherwise is not reduced and warning is generated.
      The plural forms in .pot files are generated as:
         msgid ""
         msgid_plural ""
         msgid_plural2 ""
         [...]
         msgid_pluralN ""
         msgstr[0] ""
      Then real message ID is only msgid (with context if any) and
      msgid_plural* is used only for information. When the same msgid
      is used more then once in different hb_i18n_ngettext*() calls then
      plural messages are merged.
      Please remember that for strict gettext compatibility only two plural
      forms are allowed.
    * extended i18n warnings for simple types validation, f.e.:
         hb_i18n_gettext( .t. )
    * do not generate empty .pot file when source code does not contain any
      hb_i18n_*() functions
    * store in .pot files references to real source file names with paths
      respecting #include directives
    * use hb_compIdentifierNew() to hash i18n messages at compile time
    ! fixed possible bad escape encoding of i18n strings
    + added support to control -j[01] flag using #pragma directive

      Before I'll begin to work on runtime support please test these
      modifications and inform me about problems you can see with the
      above version and missing functionality.
2008-12-02 10:26:51 +00:00
Przemyslaw Czerpak
f51b6c2f24 2008-10-10 21:22 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/source/vm/garbage.c
    * unblock HVM before executing destructors and releasing blocks

  * harbour/source/vm/fm.c
    ! do not call internal error with active lock when FM statistic
      is enabled

  * harbour/source/vm/thread.c
    ! stop other threads in hb_threadOnce() if the 1-st one
      executes bAction block to be sure that it will be completed
      before thread leave hb_threadOnce() function

  * harbour/source/vm/set.c
    ! do not call hb_inkeyReset() in set release. It's not necessary
      and it could change keyboard buffer size for other threads using
      the same GT driver.

  * harbour/source/vm/hvm.c
    % allocate new thread stack without lock

  * harbour/source/rtl/hbgtcore.c
  * harbour/source/rtl/gtapi.c
    * moved clipboard resetting from hbgtcore.c to gtapi.c

  * harbour/source/rtl/filesys.c
    ! do not use read/write operations with given file offset in Win9X
      which seems to not support such functionality
2008-10-10 19:23:11 +00:00
Przemyslaw Czerpak
e1ea6f3cec 2008-10-07 02:57 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/include/Makefile
  + harbour/include/hbatomic.h
  * harbour/include/hbthread.h
  * harbour/source/vm/garbage.c
  * harbour/source/vm/fm.c
    * moved atomic and spinlock functions into hbatomic.h

  * harbour/include/hbatomic.h
    + added atomic inc/dec for GCC and x86@64 and PPC@32
    + use OSAtomic*() and OSSpin*() functions for atomic inc/dec and
      spinlocks in Darwin builds 
    + added spinlocks to MS-Win builds
2008-10-07 00:57:54 +00:00
Przemyslaw Czerpak
12ac680ed3 2008-10-06 12:38 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/include/hbclass.ch
  * harbour/include/hboo.ch
    + added SYNC attribute to accepted syntax in class declaration
      it allows to compile code which uses this attribute but low
      level implementation is not ready yet - work in progress

  * harbour/source/vm/garbage.c
    ! added #define INCL_DOSPROCESS for OS2 builds. For some reasons
      #define INCL_DOSDATETIME I've found in DosSleep() documentation
      is note enough
2008-10-06 10:38:22 +00:00
Przemyslaw Czerpak
01fb05675c 2008-10-05 17:53 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/tests/speedtst.prg
    + added support for --scale switch - it enables special mode
      which compare scalability, f.e.:
         ./speedtst --thread=4 --scale
      executes each test loop 4 times by single thread then
      by 4 simultaneous threads, counts total real times in both
      cases and presents them with the scale factor.
      Please note that exactly the same loop tests are executed
      simultaneously so this test should well show all places which
      are not well scalable.
      This test allows me to locate yet another memory variable written by
      each thread on each function call just like uiPolls in main HVM loop.
      It's s_bDebugging which is not used in MT mode because we do not have
      any MT debugger yet but is was effectively killing the scalability
      in my hardware.
      If possible I would like to see some Windows results from multi CPU
      machine with --scale parameter, f.e.:
         speedtst --thread=8 --scale > speedtst.log
      Please make some tests.

  * harbour/source/vm/hvm.c
    % do not assign s_bDebugging in hb_vmDo()/hb_vmSend() when debugger
      is not linked

  * harbour/source/vm/garbage.c
    % enabled spinlocks in all x86 GCC builds
2008-10-05 15:53:51 +00:00
Przemyslaw Czerpak
23eae1e22c 2008-10-03 20:20 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/source/vm/garbage.c
    * Use spinlock instead of mutex in OS2 builds - performance test.
2008-10-03 18:20:50 +00:00
Przemyslaw Czerpak
64f97582d9 2008-09-13 18:49 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/include/hbpp.h
  * harbour/include/hbvm.h
  * harbour/include/hbcomp.h
  * harbour/include/hbcompdf.h
  * harbour/include/hbtrace.h
  * harbour/include/hbapilng.h
  * harbour/include/hbinit.h
  * harbour/source/rtl/langapi.c
  * harbour/source/pp/ppcore.c
  * harbour/source/pp/hbpp.c
  * harbour/source/vm/itemapi.c
  * harbour/source/vm/hvm.c
  * harbour/source/common/hbver.c
  * harbour/source/common/hbtrace.c
  * harbour/source/common/expropt2.c
  * harbour/source/compiler/complex.c
  * harbour/source/compiler/hbident.c
  * harbour/source/compiler/hbfunchk.c
    * changed some declarations from 'char *' to 'const char *' and
      fixed casting for some more pedantic compilers

  * harbour/source/pp/ppcore.c
    ! fixed one typo which could cause memory leak and even GPF

  * harbour/common.mak
  * harbour/source/vm/Makefile
  * harbour/source/rtl/Makefile
  - harbour/source/rtl/set.c
  + harbour/source/vm/set.c
  * harbour/include/hbstack.h
  * harbour/source/vm/estack.c
    * moved from RTL to HVM
    * eliminated hb_set global structure
    * moved set structure to HVM stack
    + added internal function hb_setClone() which is used to create
      copy of SET structure for child threads
    * hidden HB_SET_STRUCT declaration - 3-rd part code must not access it
      directly. Dedicated hb_set*() functions should be used instead.
    + added new function:
         BOOL hb_setSetItem( HB_set_enum set_specifier, PHB_ITEM pItem )
      which allow to change some set by 3-rd party code.
      TODO: not all SETs can be changed yet - if someone have a while
            then please add code for missing ones.

  * harbour/include/set.ch
  * harbour/include/hbset.h
    + added _SET_CODEPAGE which works like _SET_LANGUAGE giving common
      interface

  * harbour/include/hbsetup.h
    + added HB_CODEPAGE_DEFAULT which works like HB_LANG_DEFAULT

  * harbour/source/vm/hvm.c
    ! fixed builds which uses non EN lang or code page modules
      by forcing linking the chosen ones

  * harbour/include/hbstack.h
  * harbour/source/vm/estack.c
  * harbour/include/hbapicdp.h
  * harbour/source/rtl/cdpapi.c
    - removed global code page variable: hb_cdp_page and moved
      code page settings to HVM stack
    + added new function hb_cdpID() which returns current code page
      character ID
    + added new functions hb_vmCDP() and hb_vmSetCDP() to get/set
      active for given thread code page structure

  * harbour/include/hbstack.h
  * harbour/source/vm/estack.c
  * harbour/include/hbapilng.h
  * harbour/source/rtl/langapi.c
    + moved lang setting to HVM stack
    + added new functions hb_vmLang() and hb_vmSetLang() to get/set
      active for given thread language module

  * harbour/include/hbvmpub.h
  * harbour/include/hbstack.h
  * harbour/include/hbapi.h
  * harbour/source/vm/estack.c
  * harbour/source/vm/dynsym.c
  * harbour/source/vm/itemapi.c
  * harbour/source/vm/memvars.c
    * changed memvar handles for HB_HANDLE to void * which is directly
      casted to PHB_ITEM - new memvar references
    * changed HB_DYNS declarations for MT mode. In MT mode HB_DYNS does
      not contain area and memvar handles which are moved to thread
      local HVM stack
    + added array for thread local memvar and area handles to HVM stack
    % eliminated global continues array with all memvars and detached locals
    % changed HB_IT_MEMVAR to use pointers to HB_ITEM directly - it resolve
      synchronization problems in MT mode and should also improve the speed
      and reduce memory usage. It should be well visible in applications which
      uses lot of detached locals.
    - removed hb_memvarsInit() and hb_memvarsFree() - they are not necessary
      now because we do not longer use array with all allocated memvars
      and detached local and private stack initialization is made
      automatically
    + added internal functions hb_dynsymGetMemvar()/hb_dynsymSetMemvar()
    + added hb_memvarGetValueBySym() for debugger
    * moved PRIVATE variable stack to HVM stack
    * eliminated all static variables in memvars module

  * harbour/include/hbstack.h
  * harbour/source/vm/estack.c
  * harbour/source/rtl/fserror.c
    * moved IO errors to HVM stack
    + added special IO error handling which works without HVM stack
      It allows to use hb_fs*() functions without allocated stack
      by 3-rd party threads.

  * harbour/source/rtl/filesys.c
    * moved hb_fsCurDir() to HVM stack with special handling to work
      with HVM stack like IO errors

  * harbour/source/rdd/workarea.c
    * allocated RDD node array in bigger peaces to reduce later RT
      reallocations in MT mode. If user want to add dynamically more
      then 64 RDDs then it should synchronize this operation himself.

  * harbour/source/rdd/wacore.c
    * moved WA list, current WA, default RDD and neteer() flag to HVM stack

  * harbour/include/hbdefs.h
    - removed HB_HANDLE declaration

  * harbour/include/hbapi.h
    - removed HB_VALUE structure - it's not longer used due to different
      memvar handling
    * updated hb_struMemvar to new memvar handling
    * replaced hb_vmIsLocalRef() and hb_memvarsIsMemvarRef() with
      hb_vmIsStackRef() which respect multiple stack and new memvar
      and static structures and location in GC mark pass.

  * harbour/include/hbstack.h
  * harbour/source/vm/estack.c
  * harbour/source/vm/hvm.c
    + added support for thread specific data located on HVM stack
      Now it's possible to allocate static variables which are
      local to thread. Such variables are allocated on HVM stack
      and automatically destroyed. To declare new TSD variable use:
         HB_TSD_NEW( <name>, <size>, <init>, <destruct> )
      <name> - name of variable which holds TSD handler
      <size> - size of TSD are which has to be allocated
      <init> - init function, executed when new TSD is allocated by thread
               (thread access given TSD 1-st time). This function receives
               void * pointer to allocated area.
      <destruct> - destructor function executed when HVM stack is destroyed
      f.e.:
         static HB_TSD_NEW( s_scrData, sizeof( HB_SCRDATA ),
                            NULL, hb_xSaveRestRelease );
      To initialize dynamically allocated TSD variable use:
         HB_TSD_INIT( <name>, <size>, <init>, <destruct> )
      Pointer to TSD can be accessed using hb_stackGetTSD( &<name> )
      where <name> is name of variable which holds TSD handler, f.e.:
         PHB_SCRDATA pScrData = ( PHB_SCRDATA ) hb_stackGetTSD( &s_scrData );
      See source/rtl/xsavescr.c as an example
      It's also possible to test if data has been already allocated for
      current thread by:
         hb_stackTestTSD( &<name> ) => pData
      it works like hb_stackGetTSD() but return NULL if current thread data
      has not been allocated yet.

  * harbour/include/hbstack.h
  * harbour/source/vm/estack.c
    * changed hb_stack location to thread local storage in MT mode
    + added functions and macros to access/assign new HVM stack members
    + changed garbage collection mark functions to work with multiple
      stacks, thread local static and memvar variables

  * harbour/source/rtl/xsavescr.c
    * use TSD data for screen buffer to make __XSAVESCREEN()/__XRESTSCREEN()
      thread independent

  * harbour/source/rtl/idle.c
    * use TSD data for idle task settings and codeblocks
    - removed hb_idleShutDown() - it's not longer necessary

  * harbour/source/rtl/setkey.c
    * use TSD data for allocated keys to make SETKEY() thread independent

  * harbour/source/rtl/math.c
    * moved math error handler, math error block, math error mode and
      math error structure to TSD

  * harbour/source/rtl/errorapi.c
    * moved error handler, error block, error launch counter and DOS error
      value to TSD

  * harbour/source/rtl/inkey.c
    * moved inkey "before" and "after" blocks to TSD

  * harbour/source/rdd/hsx/hsx.c
    * moved HSX handles array to TSD

  * harbour/include/hbapigt.h
  * harbour/source/rtl/console.c
    - removed hb_setkeyInit() and hb_setkeyExit() - they are not longer
      necessary, allocated resources will be freed by TSD destructor
      function

  * harbour/include/hbapi.h
  * harbour/source/rtl/console.c
    * removed hb_conXSaveRestRelease() - it's not longer necessary,
      allocated resources will be freed by TSD destructor function

  * harbour/source/vm/macro.c
    * moved s_macroFlags to TSD

  * harbour/source/rtl/accept.c
    * moved accept buffer to TSD

  * harbour/include/hbcomp.h
  * harbour/include/hbcompdf.h
  * harbour/include/hbxvm.h
  * harbour/source/compiler/hbmain.c
  * harbour/source/compiler/hbfix.c
  * harbour/source/compiler/hbpcode.c
  * harbour/source/compiler/hbdead.c
  * harbour/source/compiler/complex.c
  * harbour/source/compiler/genc.c
  * harbour/source/compiler/gencc.c
  * harbour/source/compiler/hbopt.c
  * harbour/source/compiler/hblbl.c
  * harbour/source/compiler/hbstripl.c
  * harbour/source/compiler/harbour.y
  * harbour/source/compiler/harbour.yyc
  * harbour/source/compiler/harbour.yyh
  * harbour/source/vm/hvm.c
    + added new PCODE HB_P_THREADSTATICS
    + added support for static variables which are local to thread:
         THREAD STATIC <varname [:= <exp>], ...>
      They work like normal static variables but each thread operates
      on its own copy.
    * added protection against possible double call to hb_xfree()
      It can happen due to wrong marking expressions as used by bison
      and executing destructors after our free code when syntax error
      appear.

  * harbour/source/rtl/perfuncs.prg
  * harbour/source/rtl/menuto.prg
  * harbour/source/rtl/getlist.prg
  * harbour/source/rtl/readvar.prg
  * harbour/source/rtl/text.prg
    * use THREAD STATIC variables to make above code MT safe

  * harbour/include/hbgtcore.h
  * harbour/source/rtl/hbgtcore.c
    + added hb_gt_BaseFree() which will release current GT pointer
      locked by hb_gt_Base() function. This function will be used
      to optional automatic GT access synchronization when threads
      share the same GT.

  * harbour/source/rtl/gtapi.c
  * harbour/source/rtl/inkeyapi.c
  * harbour/source/rtl/mouseapi.c
  * harbour/contrib/hbct/ctwin.c
    * free GT pointer by hb_gt_BaseFree()
      TODO: CTWIN is not MT safe yet - it will be updated together
            with core GT when we add multi window interface for
            thread with own console window.

  * harbour/bin/hb-func.sh
  * harbour/config/linux/gcc.cf
    + added rt lib to Linux builds

  * harbour/bin/postinst.sh
    * create MT safe version of FM stat library: fmmt

  * harbour/bin/pack_src.sh
    + added support for ZIP packing

  * harbour/include/hbapi.h
  * harbour/include/hbvm.h
  * harbour/source/vm/hvm.c
    + added hb_vmThreadInit()/hb_vmThreadQuit() functions - they initialize
      HVM for calling thread so it can execute .prg code and call HVM
      functions. They can be used by 3-rd party code threads.
    + added hb_vmUnlock()/hb_vmLock() functions which informs that
      thread will not operate on HVM structures for some time allowing
      to execute single thread only processes like GC.
    + added hb_vmThreadQuitRequest() which sends stop request to given
       thread
    + added hb_vmWaitForThreads() which stops main thread execution waiting
      for other threads
    + added hb_vmSuspendThreads() and hb_vmResumeThreads() used be GC
      to stop all HVM threads before mark/swap scan
    + added linked list of HVM stacks
    + added hb_vmTerminateThreads() used by main HVM thread in QUIT state
    * moved EXIT procedures execution from QUIT request to HVM QUIT state
      in MT mode. It may effects some non structural code which tries to
      access private variables in EXIT functions but it's much cleaner
      and understandable for user. Please remember that we guaranties
      that ALWAYS code in BEGIN SEQUENCE is _always_ executed even after
      HVM QUIT request just like destructs. Personally I think that we
      should move EXIT procedures execution also in ST mode.
    * changed startup and cleanup code for new internal structures
    * changes startup and cleanup code for MT mode
    % removed some redundant HB_ITEM type settings
    ! eliminated non MT safe code which was using reference counters
      without protection

  * harbour/common.mak
  * harbour/source/vm/Makefile
  + harbour/include/hbthread.h
  + harbour/source/vm/thread.c
    + added C level functions to manage threads and synchronization objects
      See hbthread.h for detail description. They are based on PTHREAD API
      and PTHREAD documentation can be used as reference. I intentionally
      keep this list small for easier multiplatform porting.
      Now they have been implemented for PTHREADS (POSIX threads supported by
      many different OSes), MS-Win32/64 and OS2. The OS2 version is not tested
      at all. I do not even know if it can be compiled so please make tests.
      I used Internet resources and some part of xHarbour code as documentation
      for OS2 MT API. It should be quite easy to add other platforms if necessary.
      Harbour core code needs non recursive mutexes, conditional variables and
      TLS for one pointer. If platforms does not support conditional variables
      (f.e. MS-Win or OS2) then they can be emulated using multistate semaphores.
    + added .prg functions to manage threads and synchronization objects:
         hb_threadStart( <@sStart()> | <bStart> [, <params,...> ] ) -> <pThID>
         hb_threadJoin( <pThID> [, @<xRetCode> ] ) -> <lOK>
         hb_threadDetach( <pThID> ) -> <lOK>
         hb_threadQuitRequest( <pThID> ) -> <lOK>
         hb_threadWaitForAll() -> NIL
         hb_mutexCreate() -> <pMtx>
         hb_mutexLock( <pMtx> [, <nTimeOut> ] ) -> <lLocked>
         hb_mutexUnlock( <pMtx> ) -> <lOK>
         hb_mutexNotify( <pMtx> [, <xVal>] ) -> NIL
         hb_mutexNotifyAll( <pMtx> [, <xVal>] ) -> NIL
         hb_mutexSubscribe( <pMtx>, [ <nTimeOut> ] [, @<xSubscribed> ] ) -> <lSubscribed>
         hb_mutexSubscribeNow( <pMtx>, [ <nTimeOut> ] [, @<xSubscribed> ] ) -> <lSubscribed>
      The function list should give similar to xHarbour API but they are not exactly
      the same and except of hb_mutex*() functions which should replicate xHarbour behavior.

  + harbour/source/vm/vmmt
  + harbour/source/vm/vmmt/Makefile
    + added hbvmmt library to GNU make builds.
      Non GNU make builds should be updated.

  * harbour/contrib/hbct/pos1.c
  * harbour/contrib/gtwvg/gtwvg.c
  * harbour/contrib/rddads/ads1.c
  * harbour/contrib/hbmisc/spd.c
  * harbour/contrib/hbbmcdx/bmdbfcdx.c
  * harbour/contrib/examples/rdddbt/dbfdbt1.c
  * harbour/source/vm/runner.c
  * harbour/source/vm/itemapi.c
  * harbour/source/vm/hvm.c
  * harbour/source/rtl/console.c
  * harbour/source/rtl/strcase.c
  * harbour/source/rtl/spfiles.c
  * harbour/source/rtl/defpath.c
  * harbour/source/rtl/hbgtcore.c
  * harbour/source/rtl/dateshb.c
  * harbour/source/rtl/mlcfunc.c
  * harbour/source/rtl/fstemp.c
  * harbour/source/rtl/is.c
  * harbour/source/rtl/setcolor.c
  * harbour/source/rtl/errorint.c
  * harbour/source/rtl/transfrm.c
  * harbour/source/rtl/dates.c
  * harbour/source/rtl/filesys.c
  * harbour/source/rtl/gtdos/gtdos.c
  * harbour/source/rtl/gtwin/gtwin.c
  * harbour/source/rtl/gtwvt/gtwvt.c
  * harbour/source/rtl/gtxwc/gtxwc.c
  * harbour/source/rtl/gttrm/gttrm.c
  * harbour/source/rtl/gtpca/gtpca.c
  * harbour/source/rtl/gtcgi/gtcgi.c
  * harbour/source/rtl/gtcrs/gtcrs.c
  * harbour/source/rtl/gtstd/gtstd.c
  * harbour/source/rtl/gtsln/gtsln.c
  * harbour/source/rtl/gtsln/gtsln.h
  * harbour/source/rdd/dbf1.c
  * harbour/source/rdd/sdf1.c
  * harbour/source/rdd/delim1.c
  * harbour/source/rdd/dbcmd.c
  * harbour/source/rdd/hbdbsort.c
  * harbour/source/rdd/workarea.c
  * harbour/source/rdd/dbffpt/dbffpt1.c
  * harbour/source/rdd/dbfcdx/dbfcdx1.c
  * harbour/source/rdd/dbfntx/dbfntx1.c
  * harbour/source/rdd/hsx/hsx.c
  * harbour/source/rdd/hbsix/sxfname.c
    * use API functions instead of direct accessing to hb_cdp_page or hb_set

  * harbour/source/rtl/fstemp.c
  * harbour/source/rtl/fssize.c
  * harbour/source/rtl/hbffind.c
  * harbour/source/rtl/filesys.c
    * encapsulate potentially slow IO operation inside
      hb_vmUnlock()/hb_vmLock() calls to allow other thread GC
      activation

  * harbour/contrib/hbnf/fttext.c
    ! fixed casting

  * harbour/contrib/gtwvg/gtwvg.h
    - removed #include <comctl32.h> - my MinGW and MinGW/CE instalations do
      not have them. If it exists in some newer ones then it has to be
      covered by #if version checking.

  * harbour/source/vm/dynsym.c
    - removed hb_dynsymLog() and hb_dynsymMemvarHandle()
    * modified code to be MT safe and improved speed of some operations
    * added MUEXT protection for global dynamic table access

  * harbour/include/hbapi.h
  * harbour/source/vm/garbage.c
    * changed to work with MT HVM
    * changed to work with new memvar structures and thread local static and
      memvar variables
    * added MUEXT protection for linked block lists
    + added parameter to hb_gcCollectAll() which will force GC activation
      in MT mode by temporary suspending all executed threads.
    + added logical parameter to HB_GCALL() functions which is passed to
      hb_gcCollectAll()

  * harbour/source/vm/fm.c
    * added MUEXT protection for FM statistic module
    * added MT protection for reference counters. For platforms
      which supports atomic incrmenetation/decrementation (f.e.
      Interlocked*() functions in MS-Win) such operations are
      used. For other it's MUTEX protection. It gives MT safe
      readonly access for HVM complex variables without user
      synchronization. The MUTEX protection can cause some speed
      overhead so it's good to define MT safe version of
      HB_ATOM_INC()/HB_ATOM_DEC() in hbthread.h if given platform
      has them. Now they are defined only for Windows. For other
      platforms We can define can define them in assembler for some
      most popular CPUs in the future.

  * harbour/source/vm/classes.c
    * changed class definition array. Now it keeps pointers to class
      structures.
    * In MT mode allocated at HVM startup big enough array for class
      definitions to avoid later RT reallocations. It effectively eliminates
      MUTEX synchronization for class structure access.
    * protect by MUTEX code for new class creation

  * harbour/source/debug/dbgentry.c
    * eliminated hbvmopt.h and direct accessing to HVM structures

  * harbour/source/rtl/gtclip.c
    * protect with MUTEX access to internal clipboard data

  * harbour/source/rdd/nulsys/nulsys.c
    + added hb_rddCloseAll()

  + harbour/tests/mt
  + harbour/tests/mt/mttest01.prg
  + harbour/tests/mt/mttest02.prg
  + harbour/tests/mt/mttest03.prg
  + harbour/tests/mt/mttest04.prg
  + harbour/tests/mt/mttest05.prg
  + harbour/tests/mt/mttest06.prg
  + harbour/tests/mt/mttest07.prg
    + added some demonstration/test small MT programs written
      using Harbour language. Some of them can be also compiled
      by xHarbour but xHarbour does not pass any of my tests in
      real multi-CPU machine so do not expect they will work
      correctly.

   Harbour threads needs OS threads support. Each Harbour thread is directly
   mapped to OS thread. It's not very efficient on some older system where
   cost of thread creation and/or task switching is very expensive but it
   should not be bigger problem for modern OS-es which can support threads
   in practice nearly in user space only.
   I haven't touched Harbour function calling convention which comes from
   Clipper. It means that we do not pass pointer to VM to each functions
   like CLIP or xBase++. To resolve the problem I have to use thread local
   storage (TLS) where such pointer is kept. If platform does not support
   TLS then it can be emulated by us. Anyhow the speed of accessing TLS
   data and extracting HB_STACK poitner is critical for performance.
   Some compilers depending on used hardware and OS give native support
   for TLS (f.e. __thread keyword in GCC/BCC or __declspec( thread ) in MSVC).
   This should give optimal performance. On other Harbour uses TLS functions
   like TlsGetValue() (MS-WIN) or pthread_getspecific() (PTHREAD) are used.
   OS2 gives quite interesting TLS functionality which seems to be quite fast
   though it will be interesting to know how it is iplemented internally for
   real multi CPU machines (if it depends on CPU exception then the
   performance will be bad). We need TLS only for one pointer to HB_STACK
   structure.
   I haven't added any tricks like HB_THREAD_STUB in xHarbour to reduce
   the cost of TLS access. If it will be necessary for some platform the we
   can add it.
   Except TLS Harbour threads needs OS support for non recursive mutexes or
   critical sections and conditional variables. If platforms does not support
   conditional variables (f.e. MS-Win or OS2) then they can be emulated using
   multistate semaphores. I intentionally didn't create code which may need
   recursive mutexes. The non recursive ones are often faster and some
   platforms may not support recursive mutexes so they will have to be
   emulated by us.
   Harbour uses reference counters for complex variables. It means that even
   readonly access to complex item causes internal write operations necessary
   to increment/decrement its reference counter. To make such readonly access
   MT safe we have to make incrementation and decrementation with result
   checking atomic. By default it's done by mutex inside vm/fm.c but some
   platforms have native support for atomic inc/dec operations, f.e. 
   Interlocked*() functions in MS-Win. If they are available then such
   functions should be used to not reduce the performance by mutex call
   very often used functions. For many CPUs it should be quite easy to
   implement such atomic inc/dec functionality in assembler. F.e. for
   GCC and x86@32 it may looks like:

      static __inline__ void hb_atomic_inc32( volatile int * p )
      {
         __asm__ __volatile__(
            "lock incl %0"
            :"=m" (*p) :"m" (*p)
         );
      }

      static __inline__ int hb_atomic_dec32( volatile int * p )
      {
         unsigned char c;
         __asm__ __volatile__(
            "lock decl %0"
            "sete %1"
            :"=m" (*p), "=qm" (c) :"m" (*p) : "memory"
         );
         return c == 0;
      }

   and then it's enough to define in hbthreads.h:
      #define HB_ATOM_INC( p )    hb_atomic_inc32( ( volatile int * ) p )
      #define HB_ATOM_DEC( p )    hb_atomic_dec32( ( volatile int * ) p )

   Probably I'll make it for some most popular CPUs in the future.
   In Harbour each thread which wants to call HVM functions have to allocate
   it's own HVM stack. It's done hb_vmThreadInit(). The HVM stack is freed
   by calling hb_vmThreadQuit(). This functions can be called also by 3-rd
   party threads if they want to call HVM functions or execute .prg code.
   Calling HVM functions without allocated stack will cause GPF.
   I moved most of static variables to HVM stack to make them thread
   local. But some of them like FS errors have their own alternative
   copy which is used when thread does not allocate HVM stack. It allows
   to use hb_fs*() functions without HVM stack but programmer have to
   know that error codes return by hb_fs*Error() functions can be
   overwritten by other threads which also didn't allocated HVM stack.
   To execute garbage collector scan and mark pass it's necessary to
   stop other HVM threads. Otherwise the scan may give false results.
   It's also possible to not stop threads but protect with mutex all
   operations on GC items but it will probably cause performance reduction
   and will force some other modifications. Maybe I'll implement it
   in the future.
   I didn't use any OS level thread KILL or CANCEL calls. All HVM threads
   have to be cleanly removed without any resource leaks.
   QUIT command terminate only calling thread. If main (startup) HVM
   thread call QUIT then it sends QUIT request to all existing threads.
   In QUIT state ALWAYS statements and destructors are executed.
   New thread is created by:
      hb_threadStart( <@sStart()> | <bStart> [, <params,...> ] ) -> <pThID>
   The returned value is a pointer to internal thread structure which
   can be used in JOIN or DETACH operations. Each thread should be Joined
   or DETACHED to avoid resource leaks. If programmer does not store
   <pThID> or all instances of <pThID> are destroyed then thread is
   automatically detached. I do not know clear method of thread detaching
   in OS2. If some OS2 users knows it then plase update vm/hbthread.c.
   When thread terminates then all locked by this thread mutexes are
   released.
   Each thread uses its own memvars (PRIVATEs and PUBLICs) and work areas.
   When new thread is created then it inherits from parent thread:
      - code page
      - language
      - SETs
      - default RDD
   error block is initialized to default value by calling ERRORSYS()
   and PUBLIC variable GetList := {} is created.
   The following objects are initialized to default value:
         - error block
         - math error handler and math error block
         - macro compiler features setting (hb_setMacro())
           or move them to SETs.
   We can think about inheriting them. It's also possible to add
   inheriting of all visible memvars but I do not know it's good
   idea.

   Compilation and linking:
   For MT mode HVM library should be compiled with HB_MT_VM macro.
   GNU make automatically creates hbvmmt library which should be
   linked with Harbour MT programs instead of hbvm.
   Non GNU make files should be updated.
   If given compiler support TLS then you can try to set HB_USE_TLS
   to force using native compiler TLS support. Now it's enabled by
   default only for BCC. For Linux and GCC builds it may depend also
   on used GLIBC version. In older system there is no TLS support
   at all or TLS works only for shared binaries so I haven't enabled
   it. If you will test some other compiler then please add default
   native TLS support for them in hbthread.h
   Users using hb* scripts can simply use -mt switch when they want
   to create MT program, f.e.:
      hbmk -n -w3 -es2 -mt mttest01.prg

   There are still some minor things which should be done but I'll
   do them later. Current state seems to be fully functional.
   The most important and still missing is our own file lock server
   for RDD synchronization in POSIX systems. Kernel internally
   recognize POSIX locks by PID and file i-node - not PID and file
   handle. It means that the same file open more then once by one
   process shares locks. Because POSIX locks can be overwritten
   then we do not have any synchronization between aliased workareas
   or threads using the same table in *nixes. We have to make
   synchronization ourselves. I'll create such lock server ASAP.

   Please test and enjoy using Harbour threads.
2008-09-13 16:53:45 +00:00
Przemyslaw Czerpak
1bd32ce932 2008-06-03 19:59 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/source/vm/garbage.c
    % clear hb_stack return item in HB_GCALL() function before
      executing hb_gcCollectAll()
2008-06-03 17:59:45 +00:00
Przemyslaw Czerpak
7aa8292529 2007-11-04 19:20 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/include/hbcomp.h
  * harbour/include/hbmacro.h
  * harbour/source/compiler/hbmain.c
  * harbour/source/compiler/harbour.y
  * harbour/source/vm/macro.c
  * harbour/source/vm/garbage.c
  * harbour/source/vm/hvm.c
  * harbour/source/vm/classes.c
  * harbour/source/rdd/dbf1.c
  * harbour/source/rdd/dbffpt/dbffpt1.c
  * harbour/source/rtl/binnum.c
  * harbour/source/rtl/gtwvt/gtwvt.c
    * added explicit casting or changed some declarations to avoid
      warning about possible data lost in conversions
  * harbour/source/rtl/direct.c
    % optimized directory array creation and fixed one TOFIX note

   I left few warnings intentionally to mark places which should be
   updated in the future (f.e. HB_SYMBOLSCOPE translations).
   Victor, if you can please make build test with MSVC builds and
   send the list of warnings which still exist to harbour-devel.
2007-11-04 18:21:17 +00:00
Przemyslaw Czerpak
af5038b272 2007-09-28 14:08 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/include/hbapi.h
  * harbour/source/vm/itemapi.c
  * harbour/source/vm/garbage.c
    + added extended item references - it's universal reference which
      can be used by HVM for many different things without introducing
      new item types

  * harbour/include/hbexprb.c
    * respect -ks compiler also with <op>=, --, ++ operators

  * harbour/include/hbvm.h
  * harbour/source/vm/hvm.c
  * harbour/source/vm/classes.c
    + added extended references for SETGET methods used as object
      item references
    * use extended references to respect overloaded [] operator in
      object item references
    + added support for passing indexes to string item characters
      ( @cValue[n] ) by reference using extended references - extension
      enabled by -ks compiler switch and //flags:s RT switch. 
    + added hb_vmPushItemRef()

  * harbour/source/rdd/dbf1.c
  * harbour/source/rdd/usrrdd/usrrdd.c
    * use hb_vmPushItemRef()

  * harbour/contrib/xhb/xhbcomp.prg
  * harbour/contrib/xhb/xhbmsgs.c
    * overload +, -, *, %, ^, ++, -- in string and numeric scalar
      classes to emulated xHarbour behavior when 1 byte string is
      used as numeric value.
      Note: <nun> + <char1> in XHB lib gives numeric value when in
            xHarbour character. But because <nun> <anyOtherOper> <char1>
            in xHarbour gives numeric value then I guess that it's
            xHarbour bug and I should not replicate it, f.e.:
               proc main()
                  ? 1+"A", 131-"A", 33 * 2, 132 / chr(2), 133 % "C"
               return
    * overload +, - in hash scalar class to emulated xHarbour behavior
      for <hash> + <hash> and <hash> - <hash>
      Seems that now we can remove HB_COMPAT_XHB flag from HVM and keep
      Harbour compatibility only with -ks compile time switch and XHB
      library. Please make some tests with Harbour compiled without
      HB_COMPAT_XHB and xHarbour code using REQUEST XHB_LIB. It's possible
      that I missed sth but some basic test shows that our emulation is
      better then original and addresses places where xHarbour does not
      work at all or gives strange results, f.e.:

         #ifndef __XHARBOUR__
            request XHB_LIB
         #endif
         proc main()
            local h:={"ABC"=>123.45}
            ? h:abc
            h:abc+=1000   ; ? h:abc
            h["ABC"]+=1000; ? h:abc
            p(@h:abc)     ; ? h:abc
            p(@h["ABC"])  ; ? h:abc
         return
         proc p(x)
            x+=1000
         return

      or:

         #ifndef __XHARBOUR__
            request XHB_LIB
         #endif
         #include "hbclass.ch"
         proc main()
            local o:=myClass():new()
            o:setget:="ABC"; ? o:setget
            o:setget[2]:=42; ? o:setget
            o:setget[2]+=42; ? o:setget
            ? o:setget[2]+=42; ? o:setget
            ?
            o:var:="ABC"; ? o:var
            o:var[2]:=42; ? o:var
            o:var[2]+=42; ? o:var
            ? o:var[2]+=42; ? o:var
         return
         CREATE CLASS myClass
            VAR    var
            METHOD setget SETGET
         END CLASS
         METHOD setget( xNewVal ) CLASS myClass
            IF pcount() > 0
               ::var := xNewVal
            ENDIF
         RETURN ::var

  * harbour/include/hbapirdd.h
  * harbour/source/rdd/dbcmd.c
  * harbour/source/rdd/workarea.c
  * harbour/source/rdd/dbf1.c
  * harbour/source/rdd/dbffpt/dbffpt1.c
  * harbour/source/rdd/dbfcdx/dbfcdx1.c
  * harbour/source/rdd/dbfdbt/dbfdbt1.c
  * harbour/source/rdd/usrrdd/usrrdd.c
  * harbour/contrib/rdd_ads/ads1.c
    * changed second parameter in RELTEXT() method to PHB_ITEM
      Now RELTEXT() works like FILTERTEXT() and the size of
      expression is not limited. It's a modification I wanted
      to make for a long time and I think that now is a good
      moment to make it together with HB_FT_* modifications
    - rmoved not longer necessary HARBOUR_MAX_RDD_RELTEXT_LENGTH

  * harbour/source/rtl/gttrm/gttrm.c
    * small cleanup
2007-09-28 12:08:46 +00:00
Przemyslaw Czerpak
0724963ab3 2007-05-26 09:05 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/source/pp/ppcore.c
    ! fixed bug reported by Lorenzo

  * harbour/contrib/rdd_ads/ads1.c
    * changed static variable name from iSetListenerHandle to
      s_iSetListenerHandle to keep common naming convention

  * harbour/include/hbapi.h
  * harbour/source/vm/hashes.c
  * harbour/source/vm/hashfunc.c
  * harbour/source/vm/hvm.c
    + added new 3-rd parameter to hb_hashGetItemPtr() to control
      independently hash autoadd behavior in access/assign operation

  * harbour/include/hbrdddbf.h
  * harbour/include/hbrddntx.h
  * harbour/source/rdd/dbfntx/dbfntx1.c
    * moved static variables holding RDDI_* settings to RDDNODE data so
      they can be set separately for each RDD which inherits from DBFNTX

  * harbour/source/vm/classes.c
    + added disabled code to access hash items using messages

  * harbour/source/vm/garbage.c
    * comment
2007-05-26 07:06:07 +00:00
Przemyslaw Czerpak
88cda3200d 2007-03-22 12:55 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/common.mak
    * updated for new files - please check

  * harbour/harbour.spec
    * added compiler library

  * harbour/bin/pack_src.sh
  * harbour/bin/hb-func.sh
    * updated for new files and libraries

  * harbour/config/w32/mingw32.cf
  * harbour/config/w32/watcom.cf
  * harbour/config/w32/xcc.cf
    * added winsock libraries

  * harbour/include/hbapicdp.h
  * harbour/source/rtl/cdpapi.c
    + added hb_cdpicmp() - not case sensitive version of hb_cdpcmp()

  * harbour/include/hbapiitm.h
  * harbour/source/vm/itemapi.c
    + hb_itemStrICmp(), hb_itemCopyFromRef(), hb_itemMoveFromRef()

  * harbour/include/hbapi.h
  * harbour/include/hbcomp.h
  * harbour/include/hbcompdf.h
  * harbour/include/hbexpra.c
  * harbour/include/hbexprb.c
  * harbour/include/hbexprop.h
  * harbour/include/hbmacro.h
  * harbour/include/hbpcode.h
  * harbour/include/hbvmpub.h
  * harbour/include/hbxvm.h
  * harbour/source/common/expropt1.c
  * harbour/source/compiler/complex.c
  * harbour/source/compiler/genc.c
  * harbour/source/compiler/gencc.c
  * harbour/source/compiler/gencli.c
  * harbour/source/compiler/genhrb.c
  * harbour/source/compiler/genobj32.c
  * harbour/source/compiler/harbour.y
  * harbour/source/compiler/harbour.yyc
  * harbour/source/compiler/harbour.yyh
  * harbour/source/compiler/hbdead.c
  * harbour/source/compiler/hbfix.c
  * harbour/source/compiler/hblbl.c
  * harbour/source/compiler/hbmain.c
  * harbour/source/compiler/hbopt.c
  * harbour/source/compiler/hbpcode.c
  * harbour/source/compiler/hbstripl.c
  * harbour/source/macro/macro.y
  * harbour/source/macro/macro.yyc
  * harbour/source/macro/macro.yyh
  * harbour/source/macro/macrolex.c
  * harbour/source/vm/Makefile
  * harbour/source/vm/arrays.c
  * harbour/source/vm/asort.c
  * harbour/source/vm/classes.c
  * harbour/source/vm/eval.c
  * harbour/source/vm/garbage.c
  * harbour/source/vm/hvm.c
  * harbour/source/vm/itemapi.c
  * harbour/source/vm/macro.c
  + harbour/source/vm/hashes.c
  + harbour/source/vm/hashfunc.c
    + added hash items, f.e.:
         local h1 := {=>}, h2 := { "a"=>1.234, "b"=>2.345 }
         ? h2[ "a" ], h2[ "b ]
    + added support for DYNAMIC function declaration - it allow to define
      functions which are lately bound at runtime, f.e.:
         /*** t01.prg ***/
         dynamic func1
         proc main()
         local h:=__hrbload("t02.hrb")
         ? func1()
         return

         /*** t02.prg ***/
         func func1
         return "Hello!!!"

    % use new FUNCALL structure to hold EXTERNAL and DYNAMIC functions,
      it reduce memory usage, FUNCALL is much smaller then FUNCTION
    % use symbol scope bits when possible instead of making some linear scan
    + added new enumarator message: __ENUMKEY - it allow to access
      key value when hash item is base enumerator value, f.e.:
         proc main()
         local v, h:={"a"=>1.000,"b"=>2.000,"c"=>3.000}
         heval( h, { |k,v,i| qout( k, v, i ) } ); ?
         for each v in h
            ? v, "=>", v:__enumKey(), v:__enumValue(), v:__enumIndex(), ;
                       valtype(v:__enumBase())
            v += 0.123
         next
         ? ;heval( h, { |k,v,i| qout( k, v, i ) } )
         return
    + added C level hb_hash*() functions
    + added support for full HASH item cloning and updated array cloning
      to also clone nested hashes - please note that xHarbour does not do
      that, in xHarbour ACLONE() clones _ONLY_ nested arrays and HCLONE()
      _DOES_NOT_ clone _ANY_ nested items.

  * harbour/include/hbextern.ch
    + added hash functions HB_H*()
    * changed INET*() functions to HB_INET*()
    + added hash functions H*() and socket functions INET*() when
      HB_COMPAT_XHB is set

  * harbour/include/hbtypes.h
    + added missing HB_EXTERN_BEGIN / HB_EXTERN_END

  * harbour/include/hbpp.h
  * harbour/source/pp/ppcore.c
    ! added protection against automatic word concatenation in some cases
    ! fixed preprocessing expressions when match marker matches ';' token

  * harbour/source/rtl/Makefile
  + harbour/source/rtl/itemseri.c
    + added functions for item serialization: HB_SERIALIZE() and
      HB_DESERIALIZE() - these function are not binary compatible
      with xHarbour functions with the same names but make very
      similar job with the exception to serialization of codeblock
      and object variables - Harbour does not allow to serialize
      codeblocks and serialize objects as arrays.
      In most cases these functions can replace the xHarbour ones
    + added HB_DESERIALBEGIN() and HB_DESERIALIZE() functions covered
      by HB_COMPAT_XHB macro - this functions are only for compatibility
      with existing xHarbour code, In Harbour HB_DESERIALBEGIN() is
      dummy function which returns first parameter and HB_DESERIALNEXT()
      is a simple wrapper to HB_DESERIALIZE() so it's not necessary to
      use them.

  * harbour/source/rtl/hbinet.c
    * changed INET*() functions to HB_INET*() and enable them for default
      build
    + added INET*() functions wrappers covered by HB_COMPAT_XHB macro

  * harbour/source/rtl/hbrandom.c
    + added HB_RANDOMINT() - xHarbour compatible

  * harbour/source/rtl/len.c
    + added support for HASHes

  * harbour/source/rtl/valtype.c
    + added support for HASHes
    + added set of HB_IS*() functions - they are a little bit faster then
      calling VALTYPE( v ) == <cVal>
    - removed HB_ISBYREF() - this function cannot longer work, it was using
      a Clipper incompatible anomalies in passing variables by reference I
      fixed so it has to stop to work. If it will be realy necessary to
      implement HB_ISBYREF() function then please inform me - it will have
      to be done at compiler level or with some much deeper HVM stack
      checking.

  * harbour/source/vm/extend.c
    ! fixed hb_extIsArray() and hb_extIsObject() to work well with
      parameters passed by reference.
      Please note that now hb_extIsArray() return TRUE only for pure arrays
      not object values.

  * harbour/contrib/Makefile
  + harbour/contrib/tip/Changelog
  + harbour/contrib/tip/Makefile
  + harbour/contrib/tip/atokens.c
  + harbour/contrib/tip/base64x.c
  + harbour/contrib/tip/cgi.prg
  + harbour/contrib/tip/client.prg
  + harbour/contrib/tip/credent.prg
  + harbour/contrib/tip/cstr.prg
  + harbour/contrib/tip/encb64.prg
  + harbour/contrib/tip/encmthd.c
  + harbour/contrib/tip/encoder.prg
  + harbour/contrib/tip/encqp.prg
  + harbour/contrib/tip/encurl.prg
  + harbour/contrib/tip/ftpcln.prg
  + harbour/contrib/tip/hbhex2n.c
  + harbour/contrib/tip/httpcln.prg
  + harbour/contrib/tip/mail.prg
  + harbour/contrib/tip/popcln.prg
  + harbour/contrib/tip/smtpcln.prg
  + harbour/contrib/tip/tip.ch
  + harbour/contrib/tip/url.prg
  + harbour/contrib/tip/utils.c
    + added TIP library - code borrowed from xHarbour



   Please test - a lot of above code is not well tested, also some peaces
   were written over year ago for different things (f.e. serialization for
   NETRDD) and now I collected them and committed.
   The TIP library was not tested at all. It can be compiled but I cannot
   say if it works - I hope that people familiar with it can make necessary
   test and fixes.
   It's also not the final version of low level HASH item code. I'm working
   on more efficient structure which uses binary tries but I cannot say when
   I'll finish it (maybe in this weekend or maybe in next year) so I committed
   working version now even if I'm not happy with overall performance (BTW
   not worser then in xHarbour)
2007-03-22 12:28:14 +00:00
Przemyslaw Czerpak
0ef0f1aab9 2007-03-13 19:40 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/include/hbapi.h
  * harbour/include/hbapiitm.h
  * harbour/source/vm/garbage.c
  * harbour/source/vm/extend.c
  * harbour/source/vm/itemapi.c
    + added hb_gcFunc(), hb_parptrGC(), hb_itemGetPtrGC()
      hb_parptrGC() and hb_itemGetPtrGC() uses GC cleanup function address
      to validate if pointer item points to expected memory block type

  * harbour/source/common/hbhash.c
  * harbour/source/compiler/hbident.c
    * formatting and minor modifications

  * harbour/source/pp/pplib.c
  * harbour/source/pp/pplib2.c
    * use hb_parptrGC() to be sure that given pointer item points
      to PP structure

  + harbour/include/hbregex.h
  + harbour/source/rtl/hbregex.c
  * harbour/source/rtl/Makefile
  * harbour/common.mak
    + added support for regular expressions. Now it's enabled by default
      only in *nixes (POSIX regex) and BCC 5.5 (PCRE regex). Setting
      HB_PCRE_REGEX macro enables Perl-Compatible Regular Expressions
      and HB_POSIX_REGEX - POSIX regular expressions. In xHarbour regex
      support is enabled for all builds because PCRE source code is stored
      in CVS. If you will want we can make the same.
    + the following C functions are available:
      hb_regexCompile(), hb_regexGet(), hb_regexFree(), hb_regexMatch()
    + the following PGR functions are available:
      HB_REGEXCOMP(), HB_ISREGEX(), HB_ATX(), HB_REGEX(), HB_REGEXMATCH(),
      HB_REGEXSPLIT(), HB_REGEXATX(), HB_REGEXALL()
      They are working in similar way to the ones in xHarbour with the
      exception to some bug fixes and form of compiled regular expression.
      In Harbour it's pointer item for which HB_ISREGEX() returns TRUE when
      in xHarbour it's binary string.

  * harbour/source/rdd/dbfcdx/dbfcdx1.c
  * harbour/source/rdd/dbfntx/dbfntx1.c
    * enabled code to seek in index using regular expressions
      (DBOI_SKIPREGEX[BACK])
2007-03-13 18:40:56 +00:00
Przemyslaw Czerpak
30f56abce2 2007-01-09 15:10 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/source/compiler/hbusage.c
    * update the year in hb_compPrintLogo() from 2006 to 2007

  * harbour/source/vm/garbage.c
    ! fixed potentially very serious bug - when I added array items
      references I forgot to update GC. Fortunately it was caught
      by code to detect bugs in object destructors so only RT error
      was reported instead of internal HVM memory corruption

  * harbour/tests/hbinline.prg
    * updated comments
2007-01-09 14:10:22 +00:00
Przemyslaw Czerpak
a35053003b 2006-09-15 04:55 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
+ harbour/doc/destruct.txt
    + added description for object destructors in Harbour

  * harbour/include/error.ch
    + added new error code EG_DESTRUCTOR

  * harbour/source/lang/msgpl852.c
  * harbour/source/lang/msgpliso.c
  * harbour/source/lang/msgplmaz.c
  * harbour/source/lang/msgplwin.c
  * harbour/source/rtl/langapi.c
    + added desription for new error code - other language modules
      have to be updated

  * harbour/include/hbapi.h
    + added hb_gcRefCheck() and cover some hb_gc* functions by
      _HB_API_INTERNAL_ macro

  * harbour/source/vm/itemapi.c
    ! fixed possible RT error generation when some exception is active

  * harbour/include/hbapicls.h
  * harbour/include/hbclass.ch
  * harbour/include/hboo.ch
  * harbour/source/rtl/tclass.prg
  * harbour/source/vm/arrays.c
  * harbour/source/vm/classes.c
    + added support for object destructors

  * harbour/source/vm/garbage.c
    + added support for object destructors
    + added logic to detect buggu .prg code which uses destructors
      see doc/destruct.txt for more info.
      It's also possible that this code will exploit some bugs
      in other code which uses GC allocated memory blocks.
2006-09-15 03:10:38 +00:00
Przemyslaw Czerpak
c35391da65 2006-09-14 15:10 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/source/vm/garbage.c
    * minor cleanup

  * harbour/source/rtl/cdpapi.c
  * harbour/include/hbextern.ch
    + added HB_CDPLIST() - it returns array with all registered CODEPAGEs

  * harbour/source/rtl/set.c
    ! fixed typo in _SET_DEFEXTENSIONS

  * harbour/tests/testrpt.prg
    ! fixed syntax
    ! use lower name in report name to work properly on case sensitive
      file systems
2006-09-14 13:09:01 +00:00
Przemyslaw Czerpak
ae466d178d 2006-08-16 15:12 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/common.mak
  * harbour/source/codepage/Makefile
  + harbour/source/codepage/cpfrdos.c
  + harbour/source/codepage/cphr1250.c
  + harbour/source/codepage/cphr437.c
  + harbour/source/codepage/cphr852.c
  + harbour/source/codepage/cpit437.c
  + harbour/source/codepage/cpit850.c
  + harbour/source/codepage/cpitisb.c
  + harbour/source/codepage/cpitiso.c
  + harbour/source/codepage/cpltwin.c
  + harbour/source/codepage/cpua866.c
  + harbour/source/codepage/cpuakoi.c
  + harbour/source/codepage/cpuawin.c
    + added codepages from xHarbour

  * harbour/source/vm/garbage.c
  * harbour/source/vm/hvm.c
    * formatting and code cleanup
2006-08-16 13:25:27 +00:00
Przemyslaw Czerpak
5cbcaa09f0 2006-06-27 10:50 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/include/hbapi.h
  * harbour/source/vm/proc.c
    + added BOOL hb_procinfo( int iLevel, char * szName,
                              USHORT * puiLine, char * szFile )

  * harbour/include/hbstack.h
  * harbour/source/vm/estack.c
    + added hb_stackTotalItems(), hb_stackDateBuffer(),
      hb_stackGetStaticsBase(), hb_stackSetStaticsBase(),
      hb_stackBaseProcInfo()

  * harbour/source/vm/garbage.c
    * indenting

  * harbour/source/vm/classes.c
  * harbour/source/vm/codebloc.c
  * harbour/source/vm/extend.c
  * harbour/source/vm/fm.c
  * harbour/source/vm/hvm.c
    * replaced direct stack access by stack functions/macros

  * harbour/source/vm/debug.c
    * removed hb_stackLenGlobal() and replace it by hb_stackTopOffset()
      Warning!!! hb_stackTopOffset() returnes results smaller by 1.
      The TOP stack item is undefined and should not be accessed by
      debuger.
    * changed HB_DBG_VMSTKGLIST() to operate on functions/macros.
      It's possible that the above will badly interact with core debugger
      code so I stop farther modifications leaving them for someone who
      knows debugger core code.
2006-06-27 08:53:26 +00:00
Ryszard Glab
5c01e3a134 2006-06-26 16:35 UTC+0100 Ryszard Glab <rglab//imid.med.pl>
* include/hbapi.h
   * source/vm/garbage.c
      * changed hb_gcUnregistedSweep to static function
      * fixed handling of sweeper functions
      * there is no need to call hb_UnregisterSweep - this
        is done automatically inside hb_gcFree and during
        garbage collecting
2006-06-26 14:27:57 +00:00
Przemyslaw Czerpak
d082893701 2006-06-26 15:00 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/source/rtl/gtgui/Makefile
  * harbour/source/rtl/gtgui/gtgui.c
  + harbour/source/rtl/gtgui/gtdef.c
    + added GT version info
    * modified the hack which overwrite the default GT name
      Now original GTGUI is always present and only separate
      file add linker bindings. It will be cleaner solution which
      will allow to use REQUEST HB_GT_GUI in valid programs and
      libraries.

  * harbour/source/rtl/gtwin/gtwin.c
    * indenting

  * harbour/source/vm/garbage.c
    * minor modification: use HB_GC_PTR() to take HB_GRABAGE pointer
    + added alternate code for sweep function execution - disabled by
      default, maybe it will be used when we agree the sweep function
      behavior

  * harbour/contrib/rdd_ads/ads1.c
    * BCC warnings clean-up - synced with xHarbour

  * harbour/source/rtl/empty.c
    * added HB_IT_SYMBOL
2006-06-26 13:02:32 +00:00
Ryszard Glab
aa07c5e26a 2006-06-26 12:55 UTC+0100 Ryszard Glab <rglab//imid.med.pl>
* TODO
      * assigned SQLRDD to me

   * source/compiler/harbour.c
   * source/compiler/harbour.y
      * fixed one more warning (function with no RETURN) in cases:
         IF tmp>0
            RETURN 1
         ELSE
            RETURN 0
         ENDIF

   * include/hbapi.h
   * source/vm/garbage.c
      * fixed to call hb_gcUnregisterSweep before the memory
      block clean-up
2006-06-26 10:42:18 +00:00
Ryszard Glab
16450c2e30 2006-06-22 10:55 UTC+0100 Ryszard Glab <rglab//imid.med.pl>
* harbour.spec
   * include/hbver.h
      * updated to set version 0.46.2

   * include/hbapi.h
   * source/vm/garbage.c
      + added possibility to register a sweep function that will scan
      memory block allocated with hb_gcAlloc

   * source/compiler/harbour.c
   * source/compiler/harbour.y
      * fixed 'unreachable code' warning in IF/ELSEIF
      * fixed 'variable unused' warnings when -w3 switvh was used
2006-06-22 08:45:54 +00:00
Przemyslaw Czerpak
5f67da8896 2006-06-19 23:10 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/include/Makefile
    + added hbapicls.h

  * harbour/include/hbapi.h
  * harbour/source/vm/garbage.c
    * added some testing macros

  * harbour/include/hbmath.h
    * HB_MATH_ERRNO enabled for MINGW build. Seems that MinGW doesn't
      activate math error handler and only sets errno

  * harbour/include/hbtypes.h
  * harbour/source/vm/maindllp.c
    ! fixed VM_PROCESS_SYMBOLS_EX definition
    * cleaned a little bit code to not return uninitialized values
      when original function cannot be detected

  * harbour/source/compiler/genc.c
    * minor modifications

  * harbour/source/rtl/math.c
    ! fixed possible memory leak
    * indenting

  * harbour/source/vm/classes.c
    ! fixed possible GPF in __GETMSGPRF
    * use only one function for method name hashing

  * harbour/source/vm/hvm.c
    * minor fix
2006-06-19 21:11:59 +00:00
Przemyslaw Czerpak
917c8057e6 2006-06-14 13:05 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/config/linux/dir.cf
  * harbour/config/linux/gcc.cf
    * formatting

  * harbour/config/linux/global.cf
  * harbour/config/linux/install.cf
    * added -ldl to linked library list and RANLIB executing after library
      creation

  * harbour/contrib/ole/ole2.c
    * added #include "hbapicls.h"

  + harbour/include/hbapicls.h
  * harbour/include/hbapi.h
    + added HB_IT_ENUM item
    + added collect member to HB_IT_POINTER structure for POINTER items
      inspected by GC
    * changed the order of HB_CODEBLOCK members to safe few bytes on
      alignment
    * removed counters from HB_CODEBLOCK and HB_BASEARRAY structure
    + added hb_xRefInc(), hb_xRefDec(), hb_xRefFree(), hb_xRefCount(),
      hb_xRefResize() functions. They are internal Harbour VM functions
      and covered by internal API macro. Should not be used by 3-rd
      party code because we may change them in the future or even remove.
    + added hb_gcRefInc(), hb_gcRefDec(), hb_gcRefFree(), hb_gcRefCount()
      functions. These are also internal function which corresponds to the
      above hb_x*() ones.
    - removed hb_arrayRelease() function. This function is not longer
      necessary and it should never be public function - it was implemented
      in very dangerous way.
    - removed hb_codeblockDelete() function.
    - removed hb_memvarValueDecGarbageRef()
    + added USHORT usLen parameter to hb_codeblockMacroNew() - when sets
      to non 0 value it informs that PCODE should be copied to dynamically
      allocated buffer.
    * moved all classes/object functions to separate file: hbapicls.h
    + added hb_retptrGC()
    + added internal function hb_memvarGetItem()

  * harbour/include/hbapiitm.h
    - removed hb_itemForwardValue() and added macro which translates
      hb_itemForwardValue() to hb_itemMove()
    + added hb_itemUnShareString() and hb_itemReSizeString() functions
    + added hb_itemSetNil() macro

  * harbour/include/hbdefs.h
    * some cleanups in macro definitions

  * harbour/include/hbexprb.c
    * indenting

  * harbour/include/hbvm.h
  * harbour/include/hbinit.h
    + added hb_vmProcessSymbolsExt(), hb_vmRegisterSymbols(),
      hb_vmFreeSymbols(), hb_vmBeginSymbolGroup(),
      hb_vmInitSymbolGroup(), hb_vmExitSymbolGroup()
    * changed hb_vmProcessSymbols() to return address of register symbol
      table. For normal code it's the same address as given in parameter
      so it does not break backward binary compatibility.
    * changed symbol init macros to work correctly with modified address
      of symbol table

  * harbour/include/hbsetup.h
    * added support for HB_USE_PROFILER macro. Now profiler code is
      is disable in HVM by default
    * commented out HB_ASORT_OPT_ITEMCOPY - it's not longer used - see note.

  * harbour/include/hbstack.h
    * added missing parenthesis in hb_stackItem() macro

  * harbour/include/hbtypes.h
    * updated VM_PROCESS_DLL_SYMBOLS definition
    + added VM_PROCESS_SYMBOLS_EXT
    - removed HB_ARRAYRELEASE

  * harbour/include/hbver.h
    * changed revision number to 2

  * harbour/include/hbvmpub.h
    - remove pFunPtr from HB_DYNS and cover profiler member by
      #ifndef HB_NO_PROFILER
    + added HB_PCODEFUNC structure
    + added HB_FS_PCODEFUNC, HB_FS_DYNCODE and HB_FS_LOCAL - the last one
      is not used yet.

  * harbour/include/hbxvm.h
    * added some multipcode functions for some speed optimization in -gc3
      output

  * harbour/include/hbapicdp.h
  * harbour/source/codepage/cpbg866.c
  * harbour/source/codepage/cpbgiso.c
  * harbour/source/codepage/cpbgwin.c
  * harbour/source/codepage/cpeldos.c
  * harbour/source/codepage/cpelwin.c
  * harbour/source/codepage/cpesdos.c
  * harbour/source/codepage/cpesmwi.c
  * harbour/source/codepage/cpeswin.c
  * harbour/source/codepage/cpgedos.c
  * harbour/source/codepage/cpgewin.c
  * harbour/source/codepage/cphu852.c
  * harbour/source/codepage/cphuiso.c
  * harbour/source/codepage/cphuwin.c
  * harbour/source/codepage/cppl852.c
  * harbour/source/codepage/cppliso.c
  * harbour/source/codepage/cpplmaz.c
  * harbour/source/codepage/cpplwin.c
  * harbour/source/codepage/cppt850.c
  * harbour/source/codepage/cpptiso.c
  * harbour/source/codepage/cpru866.c
  * harbour/source/codepage/cprukoi.c
  * harbour/source/codepage/cpruwin.c
  * harbour/source/codepage/cpsl437.c
  * harbour/source/codepage/cpsl852.c
  * harbour/source/codepage/cpsliso.c
  * harbour/source/codepage/cpslwin.c
  * harbour/source/codepage/cpsrwin.c
  * harbour/source/common/hbfhnd.c
  * harbour/source/common/hbstr.c
  * harbour/source/common/hbver.c
  * harbour/source/compiler/gencli.c
  * harbour/source/rtl/fstemp.c
  * harbour/source/rtl/hbgtcore.c
  * harbour/source/rtl/langapi.c
  * harbour/source/rtl/gtalleg/gtalleg.c
  * harbour/source/rtl/gtalleg/ssf.h
  * harbour/source/rtl/gtcgi/gtcgi.c
  * harbour/source/rtl/gtcrs/gtcrs.c
  * harbour/source/rtl/gtdos/gtdos.c
  * harbour/source/rtl/gtos2/gtos2.c
  * harbour/source/rtl/gtpca/gtpca.c
  * harbour/source/rtl/gtsln/gtsln.c
  * harbour/source/rtl/gtstd/gtstd.c
  * harbour/source/rtl/gtwin/gtwin.c
  * harbour/source/rtl/gtwvt/gtwvt.c
  * harbour/source/rtl/gtxwc/gtxwc.c
    * cleaned the code to avoid warnings for some non ANSI C constructions

  * harbour/source/compiler/cmdcheck.c
    * formatting

  * harbour/source/compiler/gencc.c
    * added some multipcode optimizations

  * harbour/source/compiler/genc.c
    * keep function name set by compiler for static initstatics

  * harbour/source/compiler/harbour.c
    * extend init statics name with the number of used static variables
    * formatting

  * harbour/source/compiler/hbusage.c
    + added my name to developers list - I hope that there is enough
      of my code in Harbour (BTW for quite long time) ;-)

  * harbour/source/rdd/dbcmd.c
    - removed DBF2TEXT() function

  * harbour/source/rdd/dbf1.c
  * harbour/source/rdd/dbffpt/dbffpt1.c
    * generate RT error when someone tries to create DBF with memo fields
      without MEMO RDD linked.

  * harbour/source/rtl/errorapi.c
    * replace all hb_vmDo() with hb_vmSend()

  * harbour/source/rtl/math.c
    * use hb_errPutArgs() to pass parameters to error object

  * harbour/source/rtl/philes.c
  * harbour/source/rtl/space.c
  * harbour/source/rtl/strpeek.c
    * some minor optimizations

  * harbour/source/vm/arrays.c
    - removed hb_arrayRelease() function.
    * changed hb_arrayReleaseGarbage() to be safe for recursive call
    * updated to use GC counters

  * harbour/source/vm/arrayshb.c
    * use stack function/macros instead of direct accessing HB_STACK members

  * harbour/source/vm/asort.c
    * removed unused HB_ASORT_OPT_ITEMCOPY

  * harbour/source/vm/classes.c
    * added class code from HVM
    % added fast overloaded operator detection and execution
    + added hb_objHasOperator(), hb_objOperatorCall()
    + added separated overloading of "=" and "==" operators
    * operate on PHB_SYMB not PHB_FUNC - support for pure PCODE function
      without any machine code
    * use stack function/macros instead of direct accessing HB_STACK members
    * separated profiler code
    * some code cleaning

  * harbour/source/vm/codebloc.c
    + added USHORT usLen parameter to hb_codeblockMacroNew() - when sets
      to non 0 value it informs that PCODE should be copied to dynamically
      allocated buffer.
    * updated to use GC counters
    - removed hb_codeblockDelete() function.
    * changed hb_codeblockDeleteGarbage() to be safe for recursive call
    - removed restoring statics base in hb_codeblockEvaluate()

  * harbour/source/vm/debug.c
    * cleaned and optimized some code

  * harbour/source/vm/dynlibhb.c
    + added support for loading and unloading dynamic libraries with PCODE
    + added support for dynamic libraries in Linux (.so)
    + added HB_LIBERROR() - returns error string with last error in
      HB_LIBLOAD() - now works only in Linux

  * harbour/source/vm/dynsym.c
    * separated profiler code
    + use pDynSym->pSymbol->value.pFunPtr instead of pDynSym->pFunPtr

  * harbour/source/vm/estack.c
    + added #include "hbapicls.h"
    + added hb_stackPushReturn(), hb_stackPopReturn()

  * harbour/source/vm/eval.c
  * harbour/source/vm/extend.c
    * use stack function/macros instead of direct accessing HB_STACK members
    + added hb_retptrGC()

  * harbour/source/vm/fm.c
    + added hb_xRefInc(), hb_xRefDec(), hb_xRefFree(), hb_xRefCount(),
      hb_xRefResize() functions. They are internal Harbour VM functions
      and covered by internal API macro. Should not be used by 3-rd
      party code because we may change them in the future or even remove.

  * harbour/source/vm/garbage.c
    + added hb_gcRefInc(), hb_gcRefDec(), hb_gcRefFree(), hb_gcRefCount()
      functions. These are also internal function which corresponds to the
      above hb_x*() ones.
    * changed Step 3 of GC pass and execution of clean-up function to be
      safe for recursive calls and additional activity.
      Ryszard see my note and s_pDeletedBlock
    + added GC inspected HB_IT_POINTER items.

  * harbour/source/vm/hvm.c
    * separated profiler code
    * separated class code from HVM
    + added support for loading and unloading libraries with PCODE modules
    + added support for pure PCODE functions
    + added support for string item resizing and preallocating string buffer
    + added some new multipcode functions for -gc3 optimization
    + added hb_vmProcessSymbolsExt(), hb_vmRegisterSymbols(),
      hb_vmFreeSymbols(), hb_vmBeginSymbolGroup(),
      hb_vmInitSymbolGroup(), hb_vmExitSymbolGroup()
    * changed hb_vmProcessSymbols() to return address of register symbol
      table. For normal code it's the same address as given in parameter
      so it does not break backward binary compatibility.
    + use new code for operator overloading
    * changed FOR EACH to dynamically check iteration scope in
      hb_vmEnumNext()/hb_vmEnumPrev() and remove max number of iteration
      stored on HVM stack
    * temporary use hb_itemUnRefOnce() instead of hb_itemUnRefRefer() as
      workaround for possible GPF. I'd like Ryszard will chose the final
      version

  * harbour/source/vm/itemapi.c
    + added support for preallocating string buffer size
    + added hb_itemUnShareString() and hb_itemReSizeString()
    * updated string items to use counters allocated with each
      memory block by xh_xgrab()/hb_xalloc()
    * updated codeblock and array items to use GC reference counters
    + added GC inspected HB_IT_POINTER items.
    * generate RT error in hb_itemUnreOnce() for enumerator items
      out of scope
    + added hb_itemPutPtrGC()

  * harbour/source/vm/macro.c
    * use pDynSym->pSymbol->value.pFunPtr instead of pDynSym->pFunPtr

  * harbour/source/vm/maindllp.c
    * updated usage of hb_vmProcessSymbols()
    * added hb_vmProcessSymbolsExt()

  * harbour/source/vm/memvars.c
    + added hb_memvarGetItem()
    - removed hb_memvarValueDecGarbageRef()

  * harbour/source/vm/proc.c
    + added #include "hbapicls.h"

  * harbour/source/vm/pvalue.c
    * do not access stack structure directly but use hb_stack*()
      functions (macros)

  * harbour/source/vm/runner.c
    * synced with xHarbour

  * harbour/utils/hbtest/rt_misc.prg
   * added overloading "=" operator. Now "==" and "=" can be overloaded
     with different methods

   All names I used for new functions/macros can be changed. Please look at
   it and if you will some better propositions then we can use it.
   hb_vmProcessSymbolsExt() is added but not used yet.
2006-06-14 11:21:26 +00:00
Przemyslaw Czerpak
a290c984e7 2006-02-04 17:05 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/harbour.spec
  * harbour/make_bsd.sh
  * harbour/make_drw.sh
  * harbour/make_gnu.sh
  * harbour/make_rpm.sh
  * harbour/make_tgz.sh
  * harbour/bin/hb-func.sh
  * harbour/bin/pack_src.sh
  * harbour/config/c.cf
  * harbour/config/global.cf
  * harbour/config/rules.cf
  * harbour/config/darwin/gcc.cf
  * harbour/config/darwin/global.cf
  * harbour/config/dos/djgpp.cf
  * harbour/config/dos/global.cf
  * harbour/config/dos/install.cf
  * harbour/config/dos/owatcom.cf
  * harbour/config/hpux/gcc.cf
  * harbour/config/hpux/global.cf
  * harbour/config/linux/gcc.cf
  * harbour/config/linux/global.cf
  * harbour/config/linux/owatcom.cf
  * harbour/config/sunos/gcc.cf
  * harbour/config/w32/watcom.cf
    * include ADSRDD by default in RPMs
    * updated for new RPM which does not accept some old tags
    * set -fPIC on 64bit platforms
    + added /etc/harbour/hb-charmap.def
    * updated for new GT system and drivers

  * harbour/contrib/dot/pp.prg
  * harbour/contrib/dot/pp_harb.ch
    * use _APMAIN as startup function
    * cleaned direct access to item internals

  * harbour/contrib/libct/Makefile
  + harbour/contrib/libct/ctwfunc.c
  + harbour/contrib/libct/ctwin.c
  + harbour/contrib/libct/ctwin.h
    * added CT3 like Window System - it's a GT driver which inherits
      from the existing one and adds CTW functionality

  * harbour/contrib/libct/screen1.c
    * updated for GTAPI modifications

  * harbour/contrib/libnf/Makefile
  * harbour/contrib/libnf/chdir.c
  * harbour/contrib/libnf/mkdir.c
  * harbour/contrib/libnf/rmdir.c
    * use hb_fs*() API functions instead of calling DOS interrupts
      Now NF dir functions works on all platforms - it will be nice
      to update other functions too.

  * harbour/contrib/libnf/dispc.c
  * harbour/contrib/libnf/ftattr.c
    * updated for GT API modifications, some of this code still depends
      on EGA/VGA video buffer so will work only if user will force in GT
      using it - it will be nice to rewrite them

  * harbour/contrib/odbc/odbc.c
  * harbour/contrib/ole/ole2.c
    * casting and cleaning direct access to item internals

  * harbour/contrib/rdd_ads/ads1.c
  * harbour/contrib/rdd_ads/adsfunc.c
  * harbour/contrib/rdd_ads/adsmgmnt.c
    * synced with xHarbour

  * harbour/include/Makefile
    * added new header files

  + harbour/include/hbgtinfo.ch
    + added GTI_* defintions for hb_gtInfo() function.
      This function works in similar way to dbInfo() in RDD.
      The GTI_* definitions are taken from xHarbour "as is" and
      they should be cleaned - not all functionality are supported
      in Harbour and some others should be implemented in differ
      way then in xHarbour.

  + harbour/include/hbgtcore.h
  * harbour/include/hbapigt.h
    * new GTAPI
      hbgtcore.h file should not be included by user code
      it's only for internal use in GT drivers
    * HB_inkey_enum changed to int - this is bit field not enumerated type.
      Many of C/C++ compilers forbid bit operations on enum types and
      forcing it by casting which finally exceeds the enum range is defined
      as bug because it may badly interacts with some compiler optimizations

  * harbour/include/hbapi.h
  * harbour/include/hbapicdp.h
  * harbour/include/hbapierr.h
  * harbour/include/hbapifs.h
  * harbour/include/hbapiitm.h
  * harbour/include/hbapilng.h
  * harbour/include/hbapirdd.h
  * harbour/include/hbdate.h
  * harbour/include/hbdefs.h
  * harbour/include/hbinit.h
  * harbour/include/hbpcode.h
  * harbour/include/hbrdddbf.h
  * harbour/include/hbset.h
  * harbour/include/hbstack.h
  * harbour/include/hbvm.h
  * harbour/include/hbvmopt.h
  * harbour/include/hbvmpub.h
    * separated internal and external API. Now the definitions for
      internal HVM structures and functions are excluded by default
      they could be enabled if user include hbvmopt.h before other
      header files. Such operation should be done _ONLY_ by core
      code - if 3-rd party developers make sth like that then it's
      for their own risk and such code may stop to work with next
      Harbour versions. Without hbvmopt.h the internal structures
      like HB_ITEM, HB_DYNS, ... are  mapped to 'void' so there is
      no way to access their members so we can modify them in the
      future without afford for 3-rd party code.
      There is one small exception 'type' should be the first member
      for HB_ITEM structure because I used a small ugly hack in
      HB_IS_*() macros with castin PHB_ITEM to HB_TYPE* - it works
      without speed overhead but if you think that it will be
      better/cleaner to not use such tricks then it's enough to
      change HB_ITEM_TYPE() definitions in hbvmpub.h - see note.
    * cleared the usage of HB_EXPORT - to avoid problems with some C/C++
      compilers we agreed that the only one common way of using HB_EXPORT
      is adding it ad begining of declaration - please keep this convention
      in the future.
    + added new functions:
      hb_extIsObject(), hb_codeblockId(), hb_idleSleep(),
      hb_fsGetOsHandle(),
      hb_dynsymFindSymbol(), hb_dynsymGetSymbol(),
      hb_dynsymSymbol(), hb_dynsymName(),
      hb_dynsymMemvarHandle(), hb_dynsymAreaHandle(), hb_dynsymSetAreaHandle()
    * changed hb_arrayClone() declaration to:
         PHB_ITEM hb_arrayClone( PHB_ITEM pArray )
    * changed hb_arrayFromParams() declaration to:
         PHB_ITEM hb_arrayFromParams( int iLevel )
      The previous version needed a pointer to stack relocatable area
      so any stack resizing could cause GPF.

  * harbour/include/inkey.ch
    * added definitions for extended mouse keys/events and some key
      combinations

  * harbour/source/codepage/uc1250.c
  * harbour/source/codepage/uc1251.c
  * harbour/source/codepage/uc1253.c
  * harbour/source/codepage/uc1257.c
  * harbour/source/codepage/uc737.c
  * harbour/source/codepage/uc850.c
  * harbour/source/codepage/uc852.c
  * harbour/source/codepage/uc866.c
  * harbour/source/codepage/uc88591b.c
  * harbour/source/codepage/uc8859_1.c
  * harbour/source/codepage/uc8859_2.c
  * harbour/source/codepage/uc8859_5.c
  * harbour/source/codepage/uckoi8.c
  * harbour/source/codepage/uckoi8u.c
  * harbour/source/codepage/ucmaz.c
    * updated unicode values for characters in rabge 1-31 to keep
      DOS compatibility

  * harbour/source/common/expropt1.c
  * harbour/source/common/hbarch.c
  * harbour/source/common/hbdate.c
  * harbour/source/common/hbstr.c
  * harbour/source/common/hbver.c
    * keep HB_EXPORT at the beginning of function declaration

  * harbour/include/hbpcode.h
  * harbour/include/hbcomp.h
  * harbour/source/compiler/harbour.c
  * harbour/source/compiler/harbour.y
  * harbour/source/compiler/hbfix.c
  + harbour/source/compiler/hbdead.c
  * harbour/source/compiler/hbpcode.c
  + harbour/source/compiler/hbstripl.c
    % rewritten jump optimization
      ! fixed some minor problems
      * do not optimize jumps and local variable access by shorter
        PCODE version and HB_P_NOOP when jump optimization is
        disabled, this is a note I left in source code in few places:
         /*
          * optimizing jumps here by shorting them and setting HB_P_NOOPs
          * only slow down the compilation process for three reasons:
          * 1. When it's dummy jump to next instruction we need two passes
          *    in hb_compOptimizeJumps() to fully remove it
          * 2. hb_compOptimizeJumps() also make jump shortcutting in each pass
          * 3. When Jump Optimization is disabled (-kJ) then it cause slowness
          *    at runtime because we will have more HVM loops: first  for the
          *    shorter jump and next for the HB_P_NOOP PCODE(s)
          * [druzuz]
          */

      + added support for multi passes in jump/dead code elimination
        (hb_compOptimizeJumps())
        By default is set upto three passes.
        Now hb_compOptimizeJumps() keeps all compiler internal data clean
        on exist and can be called any times and does not change other
        compiler's functions behaviors
      + added dummy jumps elimination
      + added optimization for:
            IF .T.
            IF .F.
            WHILE .T.
            WHILE .F.
         etc.
      * restored empty BEGIN/RECOVER sequence block elimination
        if Jump Optimization is enabled then it marks the block
        with HB_P_NOOPS else it cut the generated PCODE
      + added dead code eliminator (new functions hb_compCodeTraceMarkDead()/
        hb_compPCodeTrace() - it works only when Jump Optimization is
        not disabled)
      As a result of the above we have smaller and faster PCODE.

      I do not think that we will have meta code support in the reasonable
      time and because I need some valid compiler data/structures like
      updated table of all jumps for real C code (not PCODE in .c files)
      generation then I decide to make some modifications and the above
      is in practice a side effect of this work.

  * harbour/source/rdd/dbcmd.c
  * harbour/source/rdd/dbf1.c
  * harbour/source/rdd/rddord.prg
  * harbour/source/rdd/workarea.c
  * harbour/source/rdd/dbfcdx/dbfcdx1.c
  * harbour/source/rdd/dbffpt/dbffpt1.c
  * harbour/source/rdd/dbfntx/dbfntx1.c
  * harbour/source/rdd/nulsys/nulsys.c
    * synced with my modifications in xHarbour
    * updated for API modifications

  * harbour/source/rtl/Makefile
    + added gtsys.c, gtfunc.c, hbgtcore.c

  * harbour/source/rtl/accept.c
  * harbour/source/rtl/alert.prg
  * harbour/source/rtl/cdpapi.c
  * harbour/source/rtl/console.c
  * harbour/source/rtl/dates.c
  * harbour/source/rtl/do.c
  * harbour/source/rtl/errorapi.c
  * harbour/source/rtl/errorsys.prg
  * harbour/source/rtl/file.c
  * harbour/source/rtl/fserror.c
  * harbour/source/rtl/fstemp.c
  * harbour/source/rtl/hbffind.c
  * harbour/source/rtl/idle.c
  * harbour/source/rtl/math.c
  * harbour/source/rtl/oldclear.c
  * harbour/source/rtl/strmatch.c
  * harbour/source/rtl/strpeek.c
  * harbour/source/rtl/valtype.c
  * harbour/source/rtl/xsavescr.c
    * updated for API modifications
    * cleaned some compiler warnings

  * harbour/source/rtl/filesys.c
    + added hb_fsGetOsHandle()
    * updated for API modifications

  * harbour/source/rtl/gt.c
  * harbour/source/rtl/gtapi.c
  * harbour/source/rtl/gtapiu.c
  + harbour/source/rtl/gtfunc.c
  + harbour/source/rtl/gtsys.c
  + harbour/source/rtl/hbgtcore.c
  * harbour/source/rtl/inkey.c
  * harbour/source/rtl/maxrow.c
  * harbour/source/rtl/mouseapi.c
  * harbour/source/rtl/setcolor.c
  * harbour/source/rtl/setposbs.c
  * harbour/source/rtl/shadow.c
    * new GT API code

  * harbour/source/rtl/saverest.c
    * changed default behavior in SEVESCREEN/RESTSCREEN with parameters
      out of screen range to be Clipper compatible. Added last logical
      parameter to keep previous behavior for programs which begins to
      use it.

  * harbour/source/rtl/seconds.c
    * include missing header file to fix C++ compilation
    * make hb_secondsCPU global function

  * harbour/source/rtl/set.c
    * make HB_SET_TYPEAHEAD Clipper compatible

  * harbour/source/rtl/gtcgi/Makefile
  * harbour/source/rtl/gtcgi/gtcgi.c
  - harbour/source/rtl/gtcgi/mousecgi.c
    * rewritten for new GT API
      some detail behaviors has been changed but I think the current
      implementation is better for CGI programs output - please check
      and fix me if necessary

  * harbour/source/rtl/gtcrs/Makefile
  - harbour/source/rtl/gtcrs/charmap.prg
  + harbour/source/rtl/gtcrs/chrmap.c
  - harbour/source/rtl/gtcrs/debug.map
  - harbour/source/rtl/gtcrs/eterm.map
  * harbour/source/rtl/gtcrs/gtcrs.c
  + harbour/source/rtl/gtcrs/gtcrs.h
  + harbour/source/rtl/gtcrs/hb-charmap.def
  - harbour/source/rtl/gtcrs/kbdcrs.c
  - harbour/source/rtl/gtcrs/keymap.prg
  - harbour/source/rtl/gtcrs/linux.map
  - harbour/source/rtl/gtcrs/mousecrs.c
    * new GTCRS based on my xHarbour and Flagship curses code
      Please not that at runtime it looks for a file
      /etc/harbour/hb-charmap.def where user can fully tune output
      for his terminal. This file is included with proper path in
      binaries created by make_rpm.sh and make_tgz.sh
      Ryszard I've removed some of your extensions which are no longer
      necessary and some other (keyboard sequence redefinition) should
      be done in a little bit differ way. I would like to talk about it
      when you test current code.
      Added support for extended mouse keys (middle button and wheel).

  * harbour/source/rtl/gtdos/Makefile
  * harbour/source/rtl/gtdos/gtdos.c
  - harbour/source/rtl/gtdos/mousedos.c
    * rewritten for new GT API
      Fixed some small problems, finished mouse code which for DJGPP
      is fully Clipper compatible with real mouse SAVE/RESTORE code.
      For other compilers it should be updated depending on memory
      model and used DPMI driver (if any).

  * harbour/source/rtl/gtos2/Makefile
  * harbour/source/rtl/gtos2/gtos2.c
  - harbour/source/rtl/gtos2/mouseos2.c
    * rewritten for new GT API
      Fixed some problems and finished the mouse code.
      Please test it - I made all modifications without OS2 and
      I was not able to make any test. I'm interesting in information
      if it works and the speed difference - f.e. results from
      tests/vidtest.prg run with previous and current version.

  * harbour/source/rtl/gtpca/Makefile
  * harbour/source/rtl/gtpca/gtpca.c
  - harbour/source/rtl/gtpca/kbdos2.gcc
  - harbour/source/rtl/gtpca/mousepca.c
    * rewritten for new GT API
      and finished so now it's full functional GT driver
      I'm interesting in keyboard sequences used by PC-ANSI drivers
      in DOS so it will be possible to implement also support for
      extended keys input.

  * harbour/source/rtl/gtsln/Makefile
  * harbour/source/rtl/gtsln/gtsln.c
  + harbour/source/rtl/gtsln/gtsln.h
  * harbour/source/rtl/gtsln/kbsln.c
  * harbour/source/rtl/gtsln/keytrans.c
  * harbour/source/rtl/gtsln/mousesln.c
    * rewritten for new GT API basing on current xHarbour code
      added support for slang 1.4x patched for UNICODE (Debian
      patches used by most of current Linux distributions) and
      slang 2.x - It's unicode ready, tries to detect terminal mode
      (utf-8/iso) at startup and switch the internal logic to
      iso/unicode mode. When compiled with slang 1.4x or 2.x
      and terminal is in UTF-8 it can display all characters like
      in DOS if only used font have them or good fall-back table is
      loaded (f.e. the one created by QRCZAK)
      Added support for extended mouse keys (middle button and wheel).

  * harbour/source/rtl/gtstd/Makefile
  * harbour/source/rtl/gtstd/gtstd.c
  - harbour/source/rtl/gtstd/mousestd.c
    * rewritten for new GT API
      Now it can work as full screen GT driver redrawing the previous
      screen contents from internal GT core buffers. I run with this
      GT some of my programs and they work quite well ;-) of course
      without colors.

  * harbour/source/rtl/gtwin/Makefile
  * harbour/source/rtl/gtwin/gtwin.c
  - harbour/source/rtl/gtwin/mousewin.c
    * updated for new GT API

  + harbour/source/rtl/gtxwc/Makefile
  + harbour/source/rtl/gtxwc/gtxwc.c
  + harbour/source/rtl/gtxwc/gtxwc.h
    * new XWindow Console GT driver based on my and Giancarlo Niccolai
      code form xHarbour - this GT can work in XWindow environment only
      and create its own window for  console output. It delays the
      initialization to the moment when user try to display anything on
      the screen so even without X Window system programs which uses this
      GT can work as long as use only outstd/outerr output.

  * harbour/source/vm/arrays.c
    * updated for API modifications
    + added hb_arrayId(),
    * changed hb_arrayClone() declaration to:
         HB_EXPORT PHB_ITEM hb_arrayClone( PHB_ITEM pSrcArray )
    * changed hb_arrayFromParams() declaration to:
         PHB_ITEM hb_arrayFromParams( int iLevel )

  * harbour/source/vm/arrayshb.c
    * updated for API modifications
    + added new parameter iLevel to function HB_APARAMS()

  * harbour/source/vm/classes.c
  * harbour/source/vm/cmdarg.c
  * harbour/source/vm/dynlibhb.c
  * harbour/source/vm/estack.c
  * harbour/source/vm/fm.c
  * harbour/source/vm/garbage.c
  * harbour/source/vm/maindll.c
  * harbour/source/vm/maindllh.c
  * harbour/source/vm/maindllp.c
  * harbour/source/vm/mainstd.c
  * harbour/source/vm/mainwin.c
  * harbour/source/vm/memvars.c
  * harbour/source/vm/pcount.c
  * harbour/source/vm/proc.c
    * updated for API modifications

  * harbour/source/vm/codebloc.c
    * updated for API modifications
    + added hb_codeblockId()

  * harbour/source/vm/dynsym.c
    * updated for API modifications
    + added new functions:
      hb_dynsymFindSymbol(), hb_dynsymGetSymbol(),
      hb_dynsymSymbol(), hb_dynsymName(),
      hb_dynsymMemvarHandle(), hb_dynsymAreaHandle(), hb_dynsymSetAreaHandle()

  * harbour/source/vm/eval.c
    * updated for API modifications
    * call hb_vmPushState()/hb_vmPopState() in hb_itemDo()/hb_itemDoC()
      functions - it's necessary to make HVM reentrant safe.

  * harbour/source/vm/extend.c
    * updated for API modifications
    + added hb_extIsObject() similar to existing hb_extIsArray()

  * harbour/source/vm/hvm.c
    * updated for API modifications
    + added new functions: hb_vmPushState(), hb_vmPopState()
      which save/restore HVM state (the top stack value which can be
      processed and return item and maybe sth else in the future) making
      HVM ready for reentrant.

  * harbour/source/vm/itemapi.c
    * updated for API modifications
    + added new function:
         HB_EXPORT PHB_SYMB hb_itemGetSymbol( PHB_ITEM pItem );
    ! fixed bug in hb_itemPutNInt()

  * harbour/tests/Makefile
  * harbour/utils/hbdoc/Makefile
  * harbour/utils/hbextern/Makefile
  * harbour/utils/hbmake/Makefile
  * harbour/utils/hbrun/Makefile
  * harbour/utils/hbtest/Makefile
    - removed badly added: dbfntx, dbfcdx, dbffpt, hbsix libraries.
      what broke GNU make compilation for some compilers
      This libraries should be included automatically when RDD lib
      is included by *.cf files

   Summary:
      The whole patch (cvs diff -uN) is ~1.5MB length and I cannot describe
      everything in details - sorry but it was too much modifications in
      one commit so now just some of general notes.
      The header files included as is does not have any information about
      internal HVM structures and some functions. In practice only HB_SYMB
      is public and it has to be public for .c files generated from .prg
      so I force the fixed size of this structure (alignment independent)
      by redefining some members to union with void * - it's a little bit
      ugly trick but it effectively eliminates the problem of linking
      binaries compiled with differ alignment C compiler switches.
      The structures like HB_ITEM, HB_CODEBLOCK, HB_STACK, HB_DYNS are not
      longer defined and pointers to the defined as void * - like in Clipper
      the ITEM structure. It caused that I had to add some new functions
      to make some operation still possible to implement. If I missed sth
      and any of you will have a problem with your code then please inform
      me about it and after a small discussion on Harbour developers list
      we can decide if other functions should be added.
      The internal API is still accessible. It's enough to include "hbvmopt.h"
      file before other header files to enable it. Now only files in
      source/vm directory include it.
      The 3-rd party code which does not include hbvmopt.h (or tries to
      set some internals macros) should be safe for future HVM modifications
      and will work also with new binaries so 3-rd party library developers
      should remember about it. If they won't then it's only their and
      their clients problem not Harbour developers.
      With this modifications I also create new GT model which is similar
      to the one used by RDD with multi inheritance. It can be quite easy
      extended to simultaneously load more then one GT subsystem (sth like
      work areas in RDD) but I left it for the future when someone may
      need it. hbapigt.h file now contains only information about public
      functions and does not have any code which depends on current
      internal implementation - it should be backword compatible as long
      as somone did not try to use internal GT functions.
      The internal GT system use hbgtcore.h file which should not be
      included by 3-rd party code as long as someone will not make new
      GT driver. The internal GT code is new so I expect that it will
      be changed yet in the nearest future (I'm waiting for other developers
      feedback) and in such case any 3-rd party GTs will have to be updated.
      How it works:
         The base GT driver (GTNUL) is fully functional GT driver which
         makes all operations on memory buffer. After each screen write
         Flush() method is called which check for dispcount() and if
         it's 0 then call Refresh() method to update modified area by
         Redraw() method. This method is dummy in GTNUL and external
         output with this GT can be reached by outstd()/outerr() which
         are now redirected to GT methods. A simple GT driver may overload
         only Refresh() method to give full screen output.
         Application can use only this GT driver and it seems to be very
         good choice for GUI and background daemon/service programs.
         This GT is loaded at startup then all other GTs can be loaded
         later and inherit from the previously loaded GT drivers.
         The new GT driver can overload as much method as wants/needs.
         Now all GT operations are implemented as GT method so GT driver
         can easy change their default behavior, f.e. it may fully overload
         color parsing methods and use differ or extended to Clipper color
         definitions.
         I rewrote all existing GTs to work with new GT model.
         OS2 users - please test GTOS2 which I was not able to test and
         see the note in Redraw() method. If possible please make some
         speed tests.
         In fact now there is much more internal operations then it was
         before but because they are done on memory only then current
         code is much faster in this GT drivers which so far makes all
         operations on real video area. I made some tests with GTNUL
         and tests/vidtest.prg and the total overhead is minimal. Now
         dipbegin()/dispend() in practice does not cost anything so it
         gives additional speed improvement in application which extensively
         use it.
         More then one GT driver can be linked with final binaries and
         chose on application startup by //GT<NAME> switch and/or environment
         variable HB_GT=<name>
         In the RTL is new GT function GTSYS() which works in similar way
         to RDDSYS() in RDD subsystem and for linking default GT driver
         for given platform. When RTL is compiled the default GT driver
         is set to HB_GT_DEFAULT envvar and if not exist to HB_GT_LIB
         envvar and if it also does not exist to hard coded platfom GTs
         (see source/rtl/gtsys.c and source/rtl/Makefile for rules)
         Adding to source code:
            ANNOUNCE GTSYS
         disable linking the default GT driver and:
            REQUEST HB_GT_<name>
         for linking given (<name>) GT driver, f.e.: REQUEST HB_GT_WIN
         If you are working in SH environment (Linux and other *nixes users,
         DJGPP bash, MinGW shell then it's possible to use -gt<name> switch
         in hblnk / hbmk scripts to force linking GT drivers (it could be
         repeated with different <name>) and the first one becomes the default
         one. F.e.:
            xhbmk -m -n -w -es2 -gtcrs -gtsln -gtstd -gtpca vidtest.prg
         Usually the GT driver are loaded at HVM startup but it's possible
         to load it later. I created new GT driver CTW which gives full
         CT3 like Window system. The CT3 extended driver change the behavior
         of some function in Clipper extended driver, f.e WRITECON() or
         SETPOS() with parameters out of screen range. So I implemented it
         CTW as RT GTs which is loaded when some of CTWIN function is used
         (f.e. WOPEN()/WBOARD()) and inherits from any existing GT driver.
         This is full CT3 WIN implementation with all detail behaviors I
         found (with some CT3 bug fixes). It does not have any CT3 limitations
         and can be used for any virtual screen/window size though I hardcoded
         CT3 limitation for backword compatibility. If somone will want to
         remove it then it will be enough to delete few lines from ctwin.c
         file. I'm not CTWIN Clipper user so maybe I missed some side effects
         in this driver and was not able to well test it so if you will find
         any incompatibilities then please inform me.
         THe default GT buffer uses 32bit character cell internally but
         in savescreen/restscreen it uses VGA compatible two bytes character
         cell. Some GT drivers may want to use differ character cell.
         Now GTCRS and GTSLN use 32bit character cell by default. They
         need additional information about character set (box/normal) to
         properly display box characters. It is possible to force in this
         GT drivers using Clipper compatible character cell by calling:
            hb_gtInfo( GTI_COMPATBUFFER, <lCompat> ) -> <lPreviousSeting>
         but in may cause that box drawing characters will be lost in
         some countries after RESTSCREEN(). It will depend on used code
         page.
         HB_GTINFO() is new function which works in similar way to DBINFO()
         in RDD. It allows to retrieve/change some of GT driver settings.
         GTI_* actions are defined in hbgtinfo.ch - it has all GTI_*
         definitions used in xHarbour. Now in Harbour only few of them
         are implemented.
         The new three .prg functions:
            HB_SETKEYCP( <cTermCP> [,<cHostCP>] )
            HB_SETDISPCP( <cTermCP> [,<cHostCP>] [,<lBoxChar>] )
            HB_SETTERMCP( <cTermCP> [,<cHostCP>] [,<lBoxChar>] )
         have been added. They set automatic input (HB_SETKEYCP)
         and output (HB_SETDISPCP) (or both: HB_SETTERMCP) character
         translation. They are also important for some GTs which
         informing them about used internal code page for unicode
         translation (GTXWC, GTSLN) and/or chosing proper character
         set (standard/alternate) for letters and other (f.e. box
         drawing characters) (GTCRS, GTSLN),
            <cTermCP> is encoding used on external (terminal) side
            <cHostCP> is encoding used internally, if not given then
                      current code page set HB_SETCODEPAGE() is used.
                      some of GTs which uses unicode output may
                      ignore <cTermCP>
            <lBoxChar> is optional parameter which interacts with dispbox()
                       output disabling switching to alternate character
                       set in some GTs. It effectively causes that if internal
                       (host) code page contains some letters on the box char
                       positions then they will be shown also by box drawing
                       functions like dispbox() instead of CP437 characters.
                       In some cases it could be useful. By default lBoxChar
                       is not set and GTs which can switch between standard
                       and alternate character set (GTCRS, GTSLN) will try to
                       use alternate character set for box drawing functions.

      Victor: I removed some of your functions. They can be very easy
      implemented with hb_gt_GetChar()/hb_gt_PutChar() but I do not want to
      make them part of documented external API because some GT drivers may
      want to use absolutely differ color definitions and they will stop to
      work so I do not want to make this functions documented external API.

      Ryszard: Setting alternative debug keys does not longer work.
      I like such possibilities but it should be implemented in differ
      way to f.e. using HB_GTINFO interface to allow low level GT driver
      extensions, f.e. in *nixes using CTRL+[A-Z] and SIGINT, SIGQUIT,
      SIGTSTP signals for real asynchronous setting of debug/cancel flag
      without keyboard polling from main HVM loop. I would like to discus
      about such more general solution.

   *** Please updated non GNU make files ***
2006-02-04 16:16:48 +00:00
Przemyslaw Czerpak
2e751d16e9 2005-11-08 01:56 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/source/vm/garbage.c
    - removed unnecessary memset()

  * harbour/source/vm/hvm.c
    % use startup initialized symbols: hb_symEnumIndex, hb_symEnumBase,
      hb_symEnumValue instead of strcmp( pSym->szName, ... ) in hb_vmSend()
    % remove unnecessary temporary item in hb_vmEnumStart() and use
      hb_itemMove() instead of hb_itemCopy()+hb_itemClear()
    % changed main VM loop to eliminate one comparision done on each
      loop. Now HB_P_ENDBLOCK and HB_P_ENDPROC pcodes set HB_ENDPROC_REQUESTED
      and the main loop can be exited only from one place. It gives some
      small but noticeable speed improvement.
      Ryszard please check this modification. AFAIK it should not cause
      any bad side effect and IMHO the code is cleaner now.

  * harbour/source/vm/itemapi.c
    % removed two unnecessary hb_itemClear() before hb_itemRelease()
2005-11-08 01:07:00 +00:00
Przemyslaw Czerpak
188575920d 2005-10-24 02:50 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/contrib/dot/pp.prg
  * harbour/contrib/dot/pp_harb.ch
  * harbour/include/hbapi.h
  * harbour/include/hbapirdd.h
  * harbour/include/hbdefs.h
  * harbour/include/hbextern.ch
  * harbour/include/hbinit.h
  * harbour/include/hbstack.h
  * harbour/include/hbsxfunc.h
  * harbour/include/hbvm.h
  + harbour/include/hbvmopt.h
  * harbour/include/hbvmpub.h
  * harbour/source/codepage/cdp_tpl.c
  * harbour/source/codepage/cdppl852.c
  * harbour/source/codepage/cdppliso.c
  * harbour/source/codepage/cdpplmaz.c
  * harbour/source/codepage/cdpplwin.c
  * harbour/source/compiler/genc.c
  * harbour/source/compiler/harbour.c
  * harbour/source/lang/msgca.c
  * harbour/source/lang/msgpl852.c
  * harbour/source/lang/msgpliso.c
  * harbour/source/lang/msgplmaz.c
  * harbour/source/lang/msgplwin.c
  * harbour/source/rdd/Makefile
  * harbour/source/rdd/dbcmd.c
  -  harbour/source/rdd/dbf0.prg
  * harbour/source/rdd/dbf1.c
  -  harbour/source/rdd/delim0.prg
  * harbour/source/rdd/delim1.c
  * harbour/source/rdd/rddsys.prg
  -  harbour/source/rdd/sdf0.prg
  * harbour/source/rdd/sdf1.c
  * harbour/source/rdd/dbfcdx/Makefile
  -  harbour/source/rdd/dbfcdx/dbfcdx0.prg
  * harbour/source/rdd/dbfcdx/dbfcdx1.c
  -  harbour/source/rdd/dbfcdx/sixcdx0.prg
  * harbour/source/rdd/dbfdbt/Makefile
  -  harbour/source/rdd/dbfdbt/dbfdbt0.prg
  * harbour/source/rdd/dbfdbt/dbfdbt1.c
  * harbour/source/rdd/dbffpt/Makefile
  -  harbour/source/rdd/dbffpt/dbffpt0.prg
  * harbour/source/rdd/dbffpt/dbffpt1.c
  * harbour/source/rdd/dbfntx/Makefile
  * harbour/source/rdd/dbfntx/dbfntx0.prg
  * harbour/source/rdd/dbfntx/dbfntx1.c
  * harbour/source/rdd/hbsix/Makefile
  * harbour/source/rdd/hbsix/sxcompr.c
  * harbour/source/rdd/hbsix/sxcrypt.c
  * harbour/source/rdd/hbsix/sxdate.c
  * harbour/source/rdd/hsx/hsx.c
  * harbour/source/rdd/nulsys/nulsys.prg
  * harbour/source/rtl/browdbx.prg
  * harbour/source/rtl/cdpapi.c
  * harbour/source/vm/arrays.c
  * harbour/source/vm/arrayshb.c
  * harbour/source/vm/asort.c
  * harbour/source/vm/break.c
  * harbour/source/vm/classes.c
  * harbour/source/vm/cmdarg.c
  * harbour/source/vm/codebloc.c
  * harbour/source/vm/debug.c
  * harbour/source/vm/dynlibhb.c
  * harbour/source/vm/dynsym.c
  * harbour/source/vm/estack.c
  * harbour/source/vm/eval.c
  * harbour/source/vm/evalhb.c
  * harbour/source/vm/extend.c
  * harbour/source/vm/fm.c
  * harbour/source/vm/garbage.c
  * harbour/source/vm/hvm.c
  * harbour/source/vm/initsymb.c
  * harbour/source/vm/itemapi.c
  * harbour/source/vm/macro.c
  * harbour/source/vm/maindllp.c
  * harbour/source/vm/memvars.c
  * harbour/source/vm/memvclip.c
  * harbour/source/vm/pcount.c
  * harbour/source/vm/proc.c
  * harbour/source/vm/pvalue.c
  * harbour/source/vm/runner.c
    * remove default API and stack macros. Now API/stack macros can be
      enabled by including hb_vmopt.h file.
      This file should be included _ONLY_ by core code because binary
      object/libraries generated after can work only with _EXACTLY_ the
      same HVM compiled the same C alignment switches
    * cleaned some HB_EXTERN_C declaration - Anotonio you should be able
      to build FWH now
    * cleaned startup initialization code -
      please update lang and codepage files - I only updated
      source/codepage/cdppl*.c and source/lang/msgpl*.c files
      Or other files should be updated or they will not work MSC
    * synced with recent xHarbour modification in RDD init code
2005-10-24 00:52:42 +00:00
Przemyslaw Czerpak
8859472755 2004-10-24 20:10 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/config/bsd/global.cf
    + added suppot for HB_COMMERCE and HB_WITHOUT_GTSLN env vars

  * harbour/source/compiler/Makefile
    * formating

  * harbour/include/hbdefs.h
  * harbour/source/vm/fm.c
  * harbour/source/vm/garbage.c
    + added macro HB_ALLOC_ALIGNMENT which forces allocated memory
      alignment in FM and GC modules to given value - by default used
      only when set HB_OS_SUNOS with 8 bytes alignment
2004-10-24 18:09:49 +00:00
Jean-Francois Lefebvre
55d2c9a9a6 2001-12-18 07:21 UTC+0100 JFL (Mafact) <jfl@mafact.com> 2001-12-18 06:20:04 +00:00
Jean-Francois Lefebvre
d4f626b2a9 2001-12-17 07:20 UTC+0100 JFL (Mafact) <jfl@mafact.com> 2001-12-17 06:19:22 +00:00
David G. Holm
cc172e3091 See ChangeLog entry 2001-06-14 17:15 UTC-0400 David G. Holm <dholm@jsd-llc.com> 2001-06-14 21:20:43 +00:00
Ryszard Glab
d82a9ea53c ChangeLog 2001-03-16 16:10 UTC+0100 2001-03-16 15:01:20 +00:00
Ryszard Glab
ccc567b1d0 ChangeLog 2000-12-12 21:25 UTC+0100 2000-12-12 20:22:23 +00:00
Ryszard Glab
0598030751 ChangeLog 2000-11-08 15:40 UTC+0100 2000-11-08 14:29:26 +00:00
Viktor Szakats
d407f71aa5 2000-07-24 22:28 UTC+0100 Victor Szakats <info@szelvesz.hu> 2000-07-24 20:30:05 +00:00
Ryszard Glab
f3fd7233db ChangeLog 2000-07-16 17:40 UTC+0100 2000-07-16 15:37:11 +00:00
Ryszard Glab
4317b0b71b ChangeLog 2000-07-14 20:25 UTC+0100 2000-07-14 18:20:21 +00:00
Ryszard Glab
d142ce7a92 ChangeLog 2000-07-10 19:55 UTC+0100 2000-07-10 17:54:03 +00:00
Ryszard Glab
24a16531ea ChangeLog 2000-07-10 11:10 UTC+0100 2000-07-10 09:03:42 +00:00
Ryszard Glab
2440c7a2d4 ChangeLog 2000-07-08 10:40 UTC+0100 2000-07-08 08:33:37 +00:00
Ryszard Glab
70b7ca95b8 ChangeLog 2000-07-07 10:30 UTC+0100 2000-07-07 08:26:43 +00:00
Ryszard Glab
6d13e23d68 ChangeLog 2000-07-03 20:00 UTC+0100 2000-07-03 17:53:40 +00:00
Ryszard Glab
38411220a9 ChangeLog 2000-07-03 11:40 UTC+0100 2000-07-03 09:35:57 +00:00
Ryszard Glab
3240600248 ChangeLog 2000-06-02 12:30 UTC+0100 2000-07-02 10:25:51 +00:00
Ryszard Glab
6b2a523c96 ChangeLog 2000-06-30 08:50 UTC+0100 2000-06-30 06:44:25 +00:00
Ryszard Glab
df9fab8ad8 ChangeLog 2000-06-27 11:10 UTC+0100 2000-06-28 09:03:55 +00:00