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39ffeed5f97a078944df4e257a154a0e2000f8f0
harbour-core/harbour/source/vm/estack.c
Przemyslaw Czerpak fa31aa6f70 2008-12-11 19:48 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl) 
* harbour/include/hbthread.h
  * harbour/source/vm/thread.c
    + added hb_atomic_set(), hb_atomic_get(), hb_atomic_inc() and
      hb_atomic_dec() functions which operates on HB_COUNTER or smaller
      type if it's necessary for some platforms which can be access/assign
      increment/decrement in MT safe atom operations.
      hb_atomic_dec() returns true if counter is 0 after decrementation

  * harbour/include/hbatomic.h
    ! fixed compilation in Linux and OpenWatcom

  * harbour/include/hbapiitm.h
  * harbour/source/rtl/itemseri.c
    + make hb_itemSerialize() and hb_itemDeserialize() public functions
    ! fixed serialization items with internal item references

  * harbour/source/vm/hvm.c
    * release memvars after closing RDDs

  * harbour/source/debug/dbgentry.c
    ! fixed buffer overflow reported by Rodrigo

  * harbour/source/vm/macro.c
  * harbour/source/compiler/hbmain.c
    * formatting

  * harbour/include/hbexprb.c
    ! fixed wrongly recognized functions with HB_I18N_ prefix as
      HB_I18N_GETTEXT()

  * harbour/include/hbapi.h
  * harbour/include/hbstack.h
  * harbour/include/hbthread.h
  * harbour/source/vm/estack.c
  * harbour/source/vm/thread.c
  * harbour/source/vm/hvm.c
    + added support for I18N in HVM.
      Each thread can have it's own i18n set.
      When new thread is created then it inherits i18n set from parent
      thread and both uses the same set (please remember about it if you
      will want to make some direct modifications on active i18n set
      internals).
      When thread change active i18n set then it effects only this thread
      and new threads which will be create later. It does not change i18n
      in other existing threads.
    + added functions to set/get pointer to active i18n set in HVM
         void * hb_vmI18N( void )
         void   hb_vmSetI18N( void * )

  * harbour/include/hbapi.h
  * harbour/source/rtl/hbi18n.c
    + added i18n module. Now only for internal Harbour usage without support
      for optional switching to alternative implementations.
      I'll add such functionality later when I will work on native gettext
      support.

      The following public .prg functions has been added:
         HB_I18N_GETTEXT[_STRICT]( <cMsgID> [, <cContext> ] )
               -> <cTranslatedMsgID> | <cMsgID>
         HB_I18N_NGETTEXT[_STRICT]( <nValue>, <cMsgID> | <acMsgID> ;
                                    [, <cContext> ] )
               -> <cTranslatedMsgID> | <cMsgID> | <acMsgID>[ <nIndex> ]
      This is minimal support necessary for .prg code which has to exists
      in each i18n module working with Harbour.

      The following functions had been added as public C API:
         PHB_ITEM hb_i18n_gettext( PHB_ITEM pMsgID, PHB_ITEM pContext )
         PHB_ITEM hb_i18n_ngettext( PHB_ITEM pNum,
                                    PHB_ITEM pMsgID, PHB_ITEM pContext )

      The following functions had been added as private HVM C API:
         void   hb_i18n_init( void )
         void   hb_i18n_exit( void )
         void   hb_i18n_release( void * cargo )
         void * hb_i18n_alloc( void * cargo )
      They have to be supported by alternative i18n modules

      The following functions has been added to manage Harbour i18n
      translations sets:

         HB_I18N_CREATE()
                  -> <pI18N>
            Creates new empty I18N translation set

         HB_I18N_CODEPAGE( [<pI18N>,] [<cNewCP>], [<lBase>], [<lTranslate>] )
                  -> <cOldCP>
            Gets or sets Harbour codepage used by translation set
            <pI18N> - I18N translation set,
                      if it's not given then currently active I18N set is used
            <cNewCP> - new CP ID. Must be linked with application
            <lBase> - when it's .T. then get/set base massages CP instead of
                      translated massages CP
            <lTranslate> - if it's .T. then translate base (<lBase>==.T.) or
                           final messages in I18N set from previous CP to
                           given one. Base messages translation in synced
                           with context ID translation.

         HB_I18N_PLURALFORM( [<pI18N>,] [<cNewForm>|<bNewForm>], [<lBase>] )
                  -> <cOldForm>|<bOldForm>
            Gets or sets plural form used for final or base messages
            <pI18N> - I18N translation set,
                      if it's not given then currently active I18N set is used
            <cNewForm> - language ID of plural form, f.e.: "EN", "PL", "LT".
                         Now only three above are supported. Please add rules
                         for other languages to source/rtl/hbi18n.c.
            <bNewForm> - codeblock used to calculate plural form indexes.
                         can be used instead of character representation but
                         it's not storred in serialized I18N set
            <lBase> - when it's .T. then get/set base massages plural form
                      instead of translated massages one.

         HB_I18N_DESCRIPTION( [<pI18N>,] [<cNewDescription>] )
                  -> <cOldDescription>
            Gets or sets translation set description. After serialization
            up to 32 bytes is stored in header which can be easy used to
            determinate type of translation file.
            <pI18N> - I18N translation set,
                      if it's not given then currently active I18N set is used
            <cNewDescription> - new description

         HB_I18N_ADDTEXT( <pI18N>, <cMsgID>, <cTrans> | <acTrans> [, <cContext> ] )
                  -> NIL
            Adds new message with translation to i18n translation set
            <pI18N> - I18N translation set
            <cMsgID> - original message
            <cTrans> - translated message
            <acTrans> - array with translated messages used for plural forms
            <cContext> - message context

         HB_I18N_SET( [ <pI18N> | NIL ] )
                  -> <lActive>
            Sets given I18N translation set as default one used by
            HB_I18N_[N]GETTEXT[_STRICT]() functions or remove translation
            set for calling thread when passed parameter is NIL
            <pI18N> - I18N translation set
            Returns logical value which is .T. when i18n set is active

         HB_I18N_SAVETABLE( [<pI18N>] )
                  -> <cTable>
            Returns I18N translation as string item which can be stored
            in file or database
            <pI18N> - I18N translation set, if it's not given then currently
                      active I18N set is used

         HB_I18N_RESTORETABLE( <cTable> )
                  -> <pI18N> | NIL
            Restores I18N translation set from strin item.
            <cTable> - I18N translation set in string representation
            On success it returns new <pI18N> set otherwise NIL if <cTable>
            is not valid item created by HB_I18N_SAVETABLE() or it's corrupted.

         HB_I18N_HEADERSIZE()
                  -> <nHeaderSize>
            Returns size of header used by i18n serialized version

         HB_I18N_CHEK( <cTable> | <cHeader> [, @<cDescription> ] )
                  -> <lValid>
            <cTable> - i18n translation set serialized by HB_I18N_SAVETABLE
            <cHeader> - header of i18n translation set
                        ( LEFT( <cTable>, HB_I18N_HEADERSIZE() )
            <cDescription> - optional parameter passed by reference where
                             will be sored i18n translation set description
                             extracted from valid header
            Returns logical value indicating if given table or header is
            valid serialized by HB_I18N_SAVETABLE() data. It does not
            decode the table though it validates size and control sums.

      These functions are optional and some future alternative implementations
      may not support all of them and/or may provide some other functions.

    + added unofficial .prg function __I18N_HASHTABLE() which allows to
      access hash table used by i18n translation set or create new translation
      set with given hash table. It's helper functions for developers which
      will work on Harbour i18n tools and should not be used by Harbour users.

      Unlike original gettext Harbour allows to use language with many
      plural forms as base one. In such case programmer should activate
      at application startup default i18n translation set with base plural
      form valid for base application language, f.e. by:
         pI18N := hb_i18n_create()
         hb_i18n_pluralForm( pI18N, <cLangID> | <bForm>, .t. )
         hb_i18n_set( pI18N )
      .prg code example:

         #xtranslate _( <x,...> ) => hb_i18n_gettext_strict( <x> )
         #xtranslate _N( <x,...> ) => hb_i18n_ngettext_strict( <x> )

         proc main()
            local pI18N, i

            pI18N := hb_i18n_create()
            hb_i18n_pluralForm( pI18N, "PL", .t. )
            hb_i18n_set( pI18N )

            for i := 0 to 30
               ? i, _N( i, {"grosz", "grosze", "groszy"} )
               if i > 0 .and. i % 10 == 0
                  wait
               endif
            next
         return

      In .pot files created during compilation by Harbour with -j option
      for above code we have the following entries for message with plural
      forms:
            msgid "grosz"
            msgid_plural "grosze"
            msgid_plural2 "groszy"
            msgstr[0] ""
      The msgid_plural2 (and others if language has more plural forms)
      is Harbour extension which is not gettext compatible.


      The above implementation is base version but should be fully functional.
      Now we will need functions to safe/read i18n files and tools to mange
      .pot files: merge them, edit translations, create final binary i18n
      translation sets. Because we are using gettext compatible .pot files
      then for some of such jobs we can use original gettext tools but we
      need at least function which will create translation set from one or
      more .pot files.
      We should also agree some default localization(s) for files containing
      translated data, their name convention and environment variable(s)
      to set default language. It's not strictly necessary and each user
      can have his own implementation but it would help in adding new
      translations by final users to any Harbour application which will
      respect them. We can use LANG envvar to extract preferred language
      and use the same path as executed application looking for files
      <appname>-<lang>.hil files though it may create some problems for
      OSes which support only 8.3 file names so we can also define that
      HB_I18N envvar has higher priority and points to expected translation
      file.

  * harbour/include/hbextern.ch
    - removed old __i18n_*() functions
    + added current i18n functions
2008-12-11 18:47:46 +00:00

1245 lines
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/*
* $Id$
*/
/*
* Harbour Project source code:
* The eval stack management functions
*
* Copyright 1999 Antonio Linares <alinares@fivetech.com>
* www - http://www.harbour-project.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307 USA (or visit the web site http://www.gnu.org/).
*
* As a special exception, the Harbour Project gives permission for
* additional uses of the text contained in its release of Harbour.
*
* The exception is that, if you link the Harbour libraries with other
* files to produce an executable, this does not by itself cause the
* resulting executable to be covered by the GNU General Public License.
* Your use of that executable is in no way restricted on account of
* linking the Harbour library code into it.
*
* This exception does not however invalidate any other reasons why
* the executable file might be covered by the GNU General Public License.
*
* This exception applies only to the code released by the Harbour
* Project under the name Harbour. If you copy code from other
* Harbour Project or Free Software Foundation releases into a copy of
* Harbour, as the General Public License permits, the exception does
* not apply to the code that you add in this way. To avoid misleading
* anyone as to the status of such modified files, you must delete
* this exception notice from them.
*
* If you write modifications of your own for Harbour, it is your choice
* whether to permit this exception to apply to your modifications.
* If you do not wish that, delete this exception notice.
*
*/
#define HB_STACK_PRELOAD
#define INCL_DOSPROCESS
#include "hbvmopt.h"
#include "hbapi.h"
#include "hbapicls.h"
#include "hbdefs.h"
#include "hbstack.h"
#include "hbapiitm.h"
#include "hbapierr.h"
#include "hbapirdd.h"
/* ------------------------------- */
#if !defined( STACK_INITHB_ITEMS )
#define STACK_INITHB_ITEMS 200
#endif
#if !defined( STACK_EXPANDHB_ITEMS )
#define STACK_EXPANDHB_ITEMS 20
#endif
/* ------------------------------- */
#if defined( HB_MT_VM )
# include "hbthread.h"
static HB_CRITICAL_NEW( TSD_counter );
static int s_iTSDCounter = 0;
# ifdef HB_USE_TLS
/* compiler has native support for TLS */
# if defined( HB_STACK_MACROS )
# if defined( __BORLANDC__ )
PHB_STACK HB_TLS_ATTR hb_stack_ptr = NULL;
# else
HB_TLS_ATTR PHB_STACK hb_stack_ptr = NULL;
# endif
# else
static HB_TLS_ATTR PHB_STACK hb_stack_ptr = NULL;
# endif
# define hb_stack_alloc() do { hb_stack_ptr = ( PHB_STACK ) \
hb_xgrab( sizeof( HB_STACK ) ); } while ( 0 )
# define hb_stack_dealloc() do { hb_xfree( hb_stack_ptr ); \
hb_stack_ptr = NULL; } while ( 0 )
# define hb_stack_ready() (hb_stack_ptr != NULL)
#else
/* compiler has no native TLS support, we have to implement it ourselves */
# if defined( HB_STACK_MACROS )
HB_TLS_KEY hb_stack_key;
# else
static HB_TLS_KEY hb_stack_key;
# define hb_stack_ptr ( ( PHB_STACK ) hb_tls_get( hb_stack_key ) )
# endif
static volatile BOOL s_fInited = FALSE;
# define hb_stack_alloc() do { if( !s_fInited ) { \
hb_tls_init( hb_stack_key ); \
s_fInited = TRUE; } \
hb_tls_set( hb_stack_key, \
hb_xgrab( sizeof( HB_STACK ) ) ); \
} while ( 0 )
# define hb_stack_dealloc() do { hb_xfree( ( void * ) hb_tls_get( hb_stack_key ) ); \
hb_tls_set( hb_stack_key, NULL ); } \
while ( 0 )
# define hb_stack_ready() ( s_fInited && hb_tls_get( hb_stack_key ) )
#endif /* HB_USE_TLS */
# if !defined( HB_STACK_PRELOAD )
# undef hb_stack
# define hb_stack ( * hb_stack_ptr )
# endif
#else
/* no MT mode */
# if defined( HB_STACK_MACROS )
HB_STACK hb_stack;
# else
static HB_STACK hb_stack;
# endif
# define hb_stack_alloc()
# define hb_stack_dealloc()
# define hb_stack_ready() (TRUE)
#endif /* HB_MT_VM */
/* ------------------------------- */
static BYTE s_byDirBuffer[ _POSIX_PATH_MAX + 1 ];
static HB_IOERRORS s_IOErrors;
/* ------------------------------- */
static HB_SYMB s_initSymbol = { "hb_stackInit", { HB_FS_STATIC }, { NULL }, NULL };
/* ------------------------------- */
static void hb_stack_init( PHB_STACK pStack )
{
LONG i;
HB_TRACE(HB_TR_DEBUG, ("hb_stack_init(%p)", pStack));
memset( pStack, 0, sizeof( HB_STACK ) );
pStack->pItems = ( PHB_ITEM * ) hb_xgrab( sizeof( PHB_ITEM ) * STACK_INITHB_ITEMS );
pStack->pBase = pStack->pItems;
pStack->pPos = pStack->pItems; /* points to the first stack item */
pStack->wItems = STACK_INITHB_ITEMS;
pStack->pEnd = pStack->pItems + pStack->wItems;
for( i = 0; i < pStack->wItems; ++i )
{
pStack->pItems[ i ] = ( PHB_ITEM ) hb_xgrab( sizeof( HB_ITEM ) );
pStack->pItems[ i ]->type = HB_IT_NIL;
}
pStack->pPos++;
hb_itemPutSymbol( * pStack->pItems, &s_initSymbol );
( * pStack->pItems )->item.asSymbol.stackstate = &pStack->state;
pStack->rdd.uiCurrArea = 1;
pStack->iKeyPoll = 1;
}
static void hb_stack_destroy_TSD( PHB_STACK pStack )
{
HB_TRACE(HB_TR_DEBUG, ("hb_stack_destroy_TSD(%p)", pStack));
while( pStack->iTSD )
{
if( pStack->pTSD[pStack->iTSD].pTSD )
{
if( pStack->pTSD[pStack->iTSD].pTSD->pCleanFunc )
pStack->pTSD[pStack->iTSD].pTSD->pCleanFunc(
pStack->pTSD[pStack->iTSD].value );
hb_xfree( pStack->pTSD[pStack->iTSD].value );
#if !defined( HB_MT_VM )
pStack->pTSD[pStack->iTSD].pTSD->iHandle = 0;
#endif
}
if( --pStack->iTSD == 0 )
{
hb_xfree( pStack->pTSD );
pStack->pTSD = NULL;
}
}
}
static void hb_stack_free( PHB_STACK pStack )
{
LONG i;
HB_TRACE(HB_TR_DEBUG, ("hb_stack_free(%p)", pStack));
hb_stack_destroy_TSD( pStack );
if( pStack->privates.stack )
{
hb_xfree( pStack->privates.stack );
pStack->privates.stack = NULL;
pStack->privates.size = pStack->privates.count =
pStack->privates.base = 0;
}
i = pStack->wItems - 1;
while( i >= 0 )
hb_xfree( pStack->pItems[ i-- ] );
hb_xfree( pStack->pItems );
pStack->pItems = pStack->pPos = pStack->pBase = NULL;
#if defined( HB_MT_VM )
if( pStack->byDirBuffer )
{
hb_xfree( pStack->byDirBuffer );
pStack->byDirBuffer = NULL;
}
if( pStack->iDynH )
{
hb_xfree( pStack->pDynH );
pStack->pDynH = NULL;
pStack->iDynH = 0;
}
#endif
}
void hb_stackDestroyTSD( void )
{
HB_STACK_TLS_PRELOAD
HB_TRACE(HB_TR_DEBUG, ("hb_stackDestroyTSD()"));
hb_stack_destroy_TSD( &hb_stack );
}
void * hb_stackGetTSD( PHB_TSD pTSD )
{
HB_STACK_TLS_PRELOAD
HB_TRACE(HB_TR_DEBUG, ("hb_stackGetTSD(%p)", pTSD));
#if defined( HB_MT_VM )
if( pTSD->iHandle == 0 || pTSD->iHandle > hb_stack.iTSD ||
hb_stack.pTSD[pTSD->iHandle].pTSD == NULL )
{
if( pTSD->iHandle == 0 )
{
hb_threadEnterCriticalSection( &TSD_counter );
/* repeated test protected by mutex to avoid race condition */
if( pTSD->iHandle == 0 )
pTSD->iHandle = ++s_iTSDCounter;
hb_threadLeaveCriticalSection( &TSD_counter );
}
if( pTSD->iHandle > hb_stack.iTSD )
{
hb_stack.pTSD = ( PHB_TSD_HOLDER )
hb_xrealloc( hb_stack.pTSD, ( pTSD->iHandle + 1 ) *
sizeof( HB_TSD_HOLDER ) );
memset( &hb_stack.pTSD[hb_stack.iTSD + 1], 0,
( pTSD->iHandle - hb_stack.iTSD ) * sizeof( HB_TSD_HOLDER ) );
hb_stack.iTSD = pTSD->iHandle;
}
#else
if( pTSD->iHandle == 0 )
{
ULONG ulSize = ( hb_stack.iTSD + 2 ) * sizeof( HB_TSD_HOLDER );
if( hb_stack.iTSD == 0 )
{
hb_stack.pTSD = ( PHB_TSD_HOLDER ) hb_xgrab( ulSize );
memset( hb_stack.pTSD, 0, ulSize );
}
else
{
hb_stack.pTSD = ( PHB_TSD_HOLDER ) hb_xrealloc( hb_stack.pTSD, ulSize );
}
pTSD->iHandle = ++hb_stack.iTSD;
#endif
hb_stack.pTSD[pTSD->iHandle].pTSD = pTSD;
hb_stack.pTSD[pTSD->iHandle].value = hb_xgrab( pTSD->iSize );
memset( hb_stack.pTSD[pTSD->iHandle].value, 0, pTSD->iSize );
if( pTSD->pInitFunc )
pTSD->pInitFunc( hb_stack.pTSD[pTSD->iHandle].value );
}
return hb_stack.pTSD[pTSD->iHandle].value;
}
void * hb_stackTestTSD( PHB_TSD pTSD )
{
HB_STACK_TLS_PRELOAD
HB_TRACE(HB_TR_DEBUG, ("hb_stackTestTSD(%p)", pTSD));
#if defined( HB_MT_VM )
return ( pTSD->iHandle && pTSD->iHandle <= hb_stack.iTSD ) ?
hb_stack.pTSD[pTSD->iHandle].value : NULL;
#else
return pTSD->iHandle ? hb_stack.pTSD[pTSD->iHandle].value : NULL;
#endif
}
void hb_stackReleaseTSD( PHB_TSD pTSD )
{
HB_STACK_TLS_PRELOAD
HB_TRACE(HB_TR_DEBUG, ("hb_stackReleaseTSD(%p)", pTSD));
if( pTSD->iHandle && pTSD->iHandle <= hb_stack.iTSD &&
hb_stack.pTSD[pTSD->iHandle].value )
{
if( pTSD->pCleanFunc )
pTSD->pCleanFunc( hb_stack.pTSD[pTSD->iHandle].value );
hb_xfree( hb_stack.pTSD[pTSD->iHandle].value );
hb_stack.pTSD[pTSD->iHandle].value = NULL;
hb_stack.pTSD[pTSD->iHandle].pTSD = NULL;
pTSD->iHandle = 0;
}
}
void hb_stackInit( void )
{
HB_TRACE(HB_TR_DEBUG, ("hb_stackInit()"));
#if defined( HB_MT_VM )
hb_stack_alloc();
#endif
{
HB_STACK_TLS_PRELOAD
hb_stack_init( &hb_stack );
}
}
void hb_stackFree( void )
{
HB_STACK_TLS_PRELOAD
HB_TRACE(HB_TR_DEBUG, ("hb_stackFree()"));
hb_stack_free( &hb_stack );
#if defined( HB_MT_VM )
hb_stack_dealloc();
#endif
}
#if defined( HB_MT_VM )
#undef hb_stackList
void * hb_stackList( void )
{
HB_STACK_TLS_PRELOAD
HB_TRACE(HB_TR_DEBUG, ("hb_stackList()"));
return hb_stack.pStackLst;
}
#undef hb_stackListSet
void hb_stackListSet( void * pStackLst )
{
HB_STACK_TLS_PRELOAD
HB_TRACE(HB_TR_DEBUG, ("hb_stackListSet(%p)", pStackLst));
hb_stack.pStackLst = pStackLst;
}
#undef hb_stackIdSetActionRequest
void hb_stackIdSetActionRequest( void * pStackId, USHORT uiAction )
{
( ( PHB_STACK ) pStackId )->uiActionRequest = uiAction;
}
PHB_DYN_HANDLES hb_stackGetDynHandle( PHB_DYNS pDynSym )
{
HB_STACK_TLS_PRELOAD
int iDynSym;
HB_TRACE(HB_TR_DEBUG, ("hb_stackGetDynHandle()"));
iDynSym = pDynSym->uiSymNum;
if( iDynSym > hb_stack.iDynH )
{
hb_stack.pDynH = ( PHB_DYN_HANDLES ) hb_xrealloc( hb_stack.pDynH,
iDynSym * sizeof( HB_DYN_HANDLES ) );
memset( &hb_stack.pDynH[ hb_stack.iDynH ], 0,
( iDynSym - hb_stack.iDynH ) * sizeof( HB_DYN_HANDLES ) );
hb_stack.iDynH = iDynSym;
}
return &hb_stack.pDynH[ iDynSym - 1 ];
}
#undef hb_stackQuitState
BOOL hb_stackQuitState( void )
{
HB_STACK_TLS_PRELOAD
return hb_stack.uiQuitState != 0;
}
#undef hb_stackSetQuitState
void hb_stackSetQuitState( USHORT uiState )
{
HB_STACK_TLS_PRELOAD
hb_stack.uiQuitState = uiState;
}
#undef hb_stackUnlock
int hb_stackUnlock( void )
{
HB_STACK_TLS_PRELOAD
return ++hb_stack.iUnlocked;
}
#undef hb_stackLock
int hb_stackLock( void )
{
HB_STACK_TLS_PRELOAD
return --hb_stack.iUnlocked;
}
#endif
#undef hb_stackKeyPolls
int * hb_stackKeyPolls( void )
{
HB_STACK_TLS_PRELOAD
HB_TRACE(HB_TR_DEBUG, ("hb_stackKeyPolls()"));
return &hb_stack.iKeyPoll;
}
#undef hb_stackDebugRequest
BOOL * hb_stackDebugRequest( void )
{
HB_STACK_TLS_PRELOAD
HB_TRACE(HB_TR_DEBUG, ("hb_stackDebugRequest()"));
return &hb_stack.fDebugRequest;
}
#undef hb_stackDebugInfo
void ** hb_stackDebugInfo( void )
{
HB_STACK_TLS_PRELOAD
HB_TRACE(HB_TR_DEBUG, ("hb_stackDebugInfo()"));
return &hb_stack.pDebugInfo;
}
#undef hb_stackGetPrivateStack
PHB_PRIVATE_STACK hb_stackGetPrivateStack( void )
{
HB_STACK_TLS_PRELOAD
HB_TRACE(HB_TR_DEBUG, ("hb_stackGetPrivateStack()"));
return &hb_stack.privates;
}
#undef hb_stackSetStruct
PHB_SET_STRUCT hb_stackSetStruct( void )
{
HB_STACK_TLS_PRELOAD
HB_TRACE(HB_TR_DEBUG, ("hb_stackSetStruct()"));
return &hb_stack.set;
}
#undef hb_stackId
void * hb_stackId( void )
{
HB_STACK_TLS_PRELOAD
HB_TRACE(HB_TR_DEBUG, ("hb_stackId()"));
return ( void * ) &hb_stack;
}
#undef hb_stackPop
void hb_stackPop( void )
{
HB_STACK_TLS_PRELOAD
HB_TRACE(HB_TR_DEBUG, ("hb_stackPop()"));
if( --hb_stack.pPos <= hb_stack.pBase )
hb_errInternal( HB_EI_STACKUFLOW, NULL, NULL, NULL );
if( HB_IS_COMPLEX( * hb_stack.pPos ) )
hb_itemClear( * hb_stack.pPos );
}
#undef hb_stackPopReturn
void hb_stackPopReturn( void )
{
HB_STACK_TLS_PRELOAD
HB_TRACE(HB_TR_DEBUG, ("hb_stackPopReturn()"));
if( HB_IS_COMPLEX( &hb_stack.Return ) )
hb_itemClear( &hb_stack.Return );
if( --hb_stack.pPos <= hb_stack.pBase )
hb_errInternal( HB_EI_STACKUFLOW, NULL, NULL, NULL );
hb_itemRawMove( &hb_stack.Return, * hb_stack.pPos );
}
#undef hb_stackDec
void hb_stackDec( void )
{
HB_STACK_TLS_PRELOAD
HB_TRACE(HB_TR_DEBUG, ("hb_stackDec()"));
if( --hb_stack.pPos <= hb_stack.pBase )
hb_errInternal( HB_EI_STACKUFLOW, NULL, NULL, NULL );
}
#undef hb_stackDecrease
void hb_stackDecrease( ULONG ulItems )
{
HB_STACK_TLS_PRELOAD
HB_TRACE(HB_TR_DEBUG, ("hb_stackDecrease()"));
if( ( hb_stack.pPos -= ulItems ) <= hb_stack.pBase )
hb_errInternal( HB_EI_STACKUFLOW, NULL, NULL, NULL );
}
#undef hb_stackPush
void hb_stackPush( void )
{
HB_STACK_TLS_PRELOAD
HB_TRACE(HB_TR_DEBUG, ("hb_stackPush()"));
/* enough room for another item ? */
if( ++hb_stack.pPos == hb_stack.pEnd )
hb_stackIncrease();
}
#undef hb_stackAllocItem
HB_ITEM_PTR hb_stackAllocItem( void )
{
HB_STACK_TLS_PRELOAD
HB_TRACE(HB_TR_DEBUG, ("hb_stackAllocItem()"));
if( ++hb_stack.pPos == hb_stack.pEnd )
hb_stackIncrease();
return * ( hb_stack.pPos - 1 );
}
#undef hb_stackPushReturn
void hb_stackPushReturn( void )
{
HB_STACK_TLS_PRELOAD
HB_TRACE(HB_TR_DEBUG, ("hb_stackPushReturn()"));
hb_itemRawMove( * hb_stack.pPos, &hb_stack.Return );
/* enough room for another item ? */
if( ++hb_stack.pPos == hb_stack.pEnd )
hb_stackIncrease();
}
void hb_stackIncrease( void )
{
HB_STACK_TLS_PRELOAD
LONG BaseIndex; /* index of stack base */
LONG CurrIndex; /* index of current top item */
LONG EndIndex; /* index of current top item */
HB_TRACE(HB_TR_DEBUG, ("hb_stackIncrease()"));
BaseIndex = hb_stack.pBase - hb_stack.pItems;
CurrIndex = hb_stack.pPos - hb_stack.pItems;
EndIndex = hb_stack.pEnd - hb_stack.pItems;
/* no, make more headroom: */
hb_stack.pItems = ( PHB_ITEM * ) hb_xrealloc( ( void * ) hb_stack.pItems,
sizeof( PHB_ITEM ) * ( hb_stack.wItems + STACK_EXPANDHB_ITEMS ) );
/* fix possibly modified by realloc pointers: */
hb_stack.pPos = hb_stack.pItems + CurrIndex;
hb_stack.pBase = hb_stack.pItems + BaseIndex;
hb_stack.wItems += STACK_EXPANDHB_ITEMS;
hb_stack.pEnd = hb_stack.pItems + hb_stack.wItems;
do
{
hb_stack.pItems[ EndIndex ] = ( PHB_ITEM ) hb_xgrab( sizeof( HB_ITEM ) );
hb_stack.pItems[ EndIndex ]->type = HB_IT_NIL;
}
while( ++EndIndex < hb_stack.wItems );
}
void hb_stackRemove( LONG lUntilPos )
{
HB_STACK_TLS_PRELOAD
HB_ITEM_PTR * pEnd = hb_stack.pItems + lUntilPos;
while( hb_stack.pPos > pEnd )
{
--hb_stack.pPos;
if( HB_IS_COMPLEX( * hb_stack.pPos ) )
hb_itemClear( * hb_stack.pPos );
}
}
HB_ITEM_PTR hb_stackNewFrame( PHB_STACK_STATE pFrame, USHORT uiParams )
{
HB_STACK_TLS_PRELOAD
HB_ITEM_PTR * pBase, pItem;
pBase = hb_stack.pPos - uiParams - 2;
pItem = * pBase; /* procedure symbol */
if( ! HB_IS_SYMBOL( pItem ) )
{
hb_stackDispLocal();
hb_errInternal( HB_EI_VMNOTSYMBOL, NULL, "hb_vmDo()", NULL );
}
pFrame->lBaseItem = hb_stack.pBase - hb_stack.pItems;
pFrame->lStatics = hb_stack.lStatics;
pFrame->ulPrivateBase = hb_memvarGetPrivatesBase();
pFrame->uiClass = pFrame->uiMethod = pFrame->uiLineNo = 0;
pFrame->fDebugging = FALSE;
pItem->item.asSymbol.stackstate = pFrame;
pItem->item.asSymbol.paramcnt = uiParams;
/* set default value of 'paramdeclcnt' - it will be updated
* in hb_vm[V]Frame only
*/
pItem->item.asSymbol.paramdeclcnt = uiParams;
hb_stack.pBase = pBase;
return pItem;
}
void hb_stackOldFrame( PHB_STACK_STATE pFrame )
{
HB_STACK_TLS_PRELOAD
if( hb_stack.pPos <= hb_stack.pBase )
hb_errInternal( HB_EI_STACKUFLOW, NULL, NULL, NULL );
do
{
--hb_stack.pPos;
if( HB_IS_COMPLEX( * hb_stack.pPos ) )
hb_itemClear( * hb_stack.pPos );
}
while( hb_stack.pPos > hb_stack.pBase );
hb_stack.pBase = hb_stack.pItems + pFrame->lBaseItem;
hb_stack.lStatics = pFrame->lStatics;
hb_memvarSetPrivatesBase( pFrame->ulPrivateBase );
}
#undef hb_stackItem
HB_ITEM_PTR hb_stackItem( LONG iItemPos )
{
HB_STACK_TLS_PRELOAD
if( iItemPos < 0 )
hb_errInternal( HB_EI_STACKUFLOW, NULL, NULL, NULL );
return * ( hb_stack.pItems + iItemPos );
}
#undef hb_stackItemFromTop
HB_ITEM_PTR hb_stackItemFromTop( int iFromTop )
{
HB_STACK_TLS_PRELOAD
if( iFromTop >= 0 )
hb_errInternal( HB_EI_STACKUFLOW, NULL, NULL, NULL );
return * ( hb_stack.pPos + iFromTop );
}
#undef hb_stackItemFromBase
HB_ITEM_PTR hb_stackItemFromBase( int iFromBase )
{
HB_STACK_TLS_PRELOAD
if( iFromBase < 0 )
hb_errInternal( HB_EI_STACKUFLOW, NULL, NULL, NULL );
return * ( hb_stack.pBase + iFromBase + 1 );
}
#undef hb_stackLocalVariable
HB_ITEM_PTR hb_stackLocalVariable( int *piFromBase )
{
HB_STACK_TLS_PRELOAD
HB_ITEM_PTR pBase = *hb_stack.pBase;
/*
if( *piFromBase <= 0 )
hb_errInternal( HB_EI_STACKUFLOW, NULL, NULL, NULL );
*/
if( pBase->item.asSymbol.paramcnt > pBase->item.asSymbol.paramdeclcnt )
{
/* function with variable number of parameters:
* FUNCTION foo( a,b,c,...)
* LOCAL x,y,z
* number of passed parameters is bigger then number of declared
* parameters - skip additional parameters only for local variables
*/
if( *piFromBase > pBase->item.asSymbol.paramdeclcnt )
*piFromBase += pBase->item.asSymbol.paramcnt - pBase->item.asSymbol.paramdeclcnt;
}
return * ( hb_stack.pBase + *piFromBase + 1 );
}
#undef hb_stackBaseItem
HB_ITEM_PTR hb_stackBaseItem( void )
{
HB_STACK_TLS_PRELOAD
return * hb_stack.pBase;
}
/* Returns SELF object, an evaluated codeblock or NIL for normal func/proc
*/
#undef hb_stackSelfItem
HB_ITEM_PTR hb_stackSelfItem( void )
{
HB_STACK_TLS_PRELOAD
return * ( hb_stack.pBase + 1 );
}
#undef hb_stackReturnItem
HB_ITEM_PTR hb_stackReturnItem( void )
{
HB_STACK_TLS_PRELOAD
HB_TRACE(HB_TR_DEBUG, ("hb_stackReturnItem()"));
return &hb_stack.Return;
}
#undef hb_stackTopOffset
LONG hb_stackTopOffset( void )
{
HB_STACK_TLS_PRELOAD
return hb_stack.pPos - hb_stack.pItems;
}
#undef hb_stackBaseOffset
LONG hb_stackBaseOffset( void )
{
HB_STACK_TLS_PRELOAD
return hb_stack.pBase - hb_stack.pItems + 1;
}
#undef hb_stackTotalItems
LONG hb_stackTotalItems( void )
{
HB_STACK_TLS_PRELOAD
return hb_stack.wItems;
}
#undef hb_stackDateBuffer
char * hb_stackDateBuffer( void )
{
HB_STACK_TLS_PRELOAD
return hb_stack.szDate;
}
BYTE * hb_stackDirBuffer( void )
{
#if defined( HB_MT_VM )
if( hb_stack_ready() )
{
HB_STACK_TLS_PRELOAD
if( !hb_stack.byDirBuffer )
hb_stack.byDirBuffer = ( BYTE * ) hb_xgrab( _POSIX_PATH_MAX + 1 );
return hb_stack.byDirBuffer;
}
#endif
return s_byDirBuffer;
}
PHB_IOERRORS hb_stackIOErrors( void )
{
#if defined( HB_MT_VM )
if( hb_stack_ready() )
{
HB_STACK_TLS_PRELOAD
return &hb_stack.IOErrors;
}
#endif
return &s_IOErrors;
}
void * hb_stackGetGT( void )
{
#if defined( HB_MT_VM )
if( hb_stack_ready() )
{
HB_STACK_TLS_PRELOAD
return hb_stack.hGT;
}
else
return NULL;
#else
HB_STACK_TLS_PRELOAD
return hb_stack.hGT;
#endif
}
void hb_stackSetGT( void * hGT )
{
HB_STACK_TLS_PRELOAD
hb_stack.hGT = hGT;
}
PHB_STACKRDD hb_stackRDD( void )
{
HB_STACK_TLS_PRELOAD
return &hb_stack.rdd;
}
#undef hb_stackGetStaticsBase
LONG hb_stackGetStaticsBase( void )
{
HB_STACK_TLS_PRELOAD
return hb_stack.lStatics;
}
#undef hb_stackSetStaticsBase
void hb_stackSetStaticsBase( LONG lBase )
{
HB_STACK_TLS_PRELOAD
hb_stack.lStatics = lBase;
}
#undef hb_stackGetRecoverBase
LONG hb_stackGetRecoverBase( void )
{
HB_STACK_TLS_PRELOAD
return hb_stack.lRecoverBase;
}
#undef hb_stackSetRecoverBase
void hb_stackSetRecoverBase( LONG lBase )
{
HB_STACK_TLS_PRELOAD
hb_stack.lRecoverBase = lBase;
}
#undef hb_stackGetActionRequest
USHORT hb_stackGetActionRequest( void )
{
HB_STACK_TLS_PRELOAD
return hb_stack.uiActionRequest;
}
#undef hb_stackSetActionRequest
void hb_stackSetActionRequest( USHORT uiAction )
{
HB_STACK_TLS_PRELOAD
hb_stack.uiActionRequest = uiAction;
}
#undef hb_stackWithObjectItem
PHB_ITEM hb_stackWithObjectItem( void )
{
HB_STACK_TLS_PRELOAD
return hb_stack.lWithObject ?
* ( hb_stack.pItems + hb_stack.lWithObject ) : NULL;
}
#undef hb_stackWithObjectOffset
LONG hb_stackWithObjectOffset( void )
{
HB_STACK_TLS_PRELOAD
return hb_stack.lWithObject;
}
#undef hb_stackWithObjectSetOffset
void hb_stackWithObjectSetOffset( LONG lOffset )
{
HB_STACK_TLS_PRELOAD
hb_stack.lWithObject = lOffset;
}
#undef hb_stackGetCDP
void * hb_stackGetCDP( void )
{
HB_STACK_TLS_PRELOAD
return hb_stack.pCDP;
}
#undef hb_stackSetCDP
void hb_stackSetCDP( void * pCDP )
{
HB_STACK_TLS_PRELOAD
hb_stack.pCDP = pCDP;
}
#undef hb_stackGetLang
void * hb_stackGetLang( void )
{
HB_STACK_TLS_PRELOAD
return hb_stack.pLang;
}
#undef hb_stackSetLang
void hb_stackSetLang( void * pLang )
{
HB_STACK_TLS_PRELOAD
hb_stack.pLang = pLang;
}
#undef hb_stackGetI18N
void * hb_stackGetI18N( void )
{
HB_STACK_TLS_PRELOAD
return hb_stack.pI18N;
}
#undef hb_stackSetI18N
void hb_stackSetI18N( void * pI18N )
{
HB_STACK_TLS_PRELOAD
hb_stack.pI18N = pI18N;
}
#undef hb_stackItemBasePtr
PHB_ITEM ** hb_stackItemBasePtr( void )
{
HB_STACK_TLS_PRELOAD
return &hb_stack.pItems;
}
void hb_stackClearMevarsBase( void )
{
HB_STACK_TLS_PRELOAD
PHB_ITEM pBase;
HB_TRACE(HB_TR_DEBUG, ("hb_stackClearMevarsBase()"));
pBase = * hb_stack.pBase;
while( pBase->item.asSymbol.stackstate->ulPrivateBase != 0 )
{
pBase->item.asSymbol.stackstate->ulPrivateBase = 0;
pBase = * ( hb_stack.pItems + pBase->item.asSymbol.stackstate->lBaseItem );
}
}
int hb_stackCallDepth( void )
{
HB_STACK_TLS_PRELOAD
LONG lOffset = hb_stack.pBase - hb_stack.pItems;
int iLevel = 0;
while( lOffset > 0 )
{
lOffset = ( * ( hb_stack.pItems + lOffset ) )->item.asSymbol.stackstate->lBaseItem;
++iLevel;
}
return iLevel;
}
LONG hb_stackBaseProcOffset( int iLevel )
{
HB_STACK_TLS_PRELOAD
LONG lOffset = hb_stack.pBase - hb_stack.pItems;
while( iLevel-- > 0 && lOffset > 0 )
lOffset = ( * ( hb_stack.pItems + lOffset ) )->item.asSymbol.stackstate->lBaseItem;
if( iLevel < 0 && ( lOffset > 0 || HB_IS_SYMBOL( * hb_stack.pItems ) ) )
return lOffset;
else
return -1;
}
void hb_stackBaseProcInfo( char * szProcName, USHORT * puiProcLine )
{
/*
* This function is called by FM module and has to be ready for execution
* before hb_stack initialization, [druzus]
* szProcName should be at least HB_SYMBOL_NAME_LEN + 1 bytes buffer
*/
#if defined( HB_MT_VM )
if( !hb_stack_ready() )
{
szProcName[ 0 ] = '\0';
* puiProcLine = 0;
return;
}
#endif
{
HB_STACK_TLS_PRELOAD
if( hb_stack.pPos > hb_stack.pBase )
{
hb_strncpy( szProcName, ( * hb_stack.pBase )->item.asSymbol.value->szName,
HB_SYMBOL_NAME_LEN );
* puiProcLine = ( * hb_stack.pBase )->item.asSymbol.stackstate->uiLineNo;
}
else
{
szProcName[ 0 ] = '\0';
* puiProcLine = 0;
}
}
}
/* NOTE: DEBUG function */
void hb_stackDispLocal( void )
{
HB_STACK_TLS_PRELOAD
PHB_ITEM * pBase;
HB_TRACE(HB_TR_DEBUG, ("hb_stackDispLocal()"));
printf( "%s", hb_conNewLine() );
printf( HB_I_("Virtual Machine Stack Dump at %s(%i):"),
( *hb_stack.pBase )->item.asSymbol.value->szName,
( *hb_stack.pBase )->item.asSymbol.stackstate->uiLineNo );
printf( "%s", hb_conNewLine() );
printf( "--------------------------" );
for( pBase = hb_stack.pBase; pBase <= hb_stack.pPos; pBase++ )
{
printf( "%s", hb_conNewLine() );
switch( hb_itemType( *pBase ) )
{
case HB_IT_NIL:
printf( HB_I_("NIL ") );
break;
case HB_IT_ARRAY:
if( hb_arrayIsObject( *pBase ) )
printf( HB_I_("OBJECT = %s "), hb_objGetClsName( *pBase ) );
else
printf( HB_I_("ARRAY ") );
break;
case HB_IT_BLOCK:
printf( HB_I_("BLOCK ") );
break;
case HB_IT_DATE:
{
char szDate[ 9 ];
printf( HB_I_("DATE = \"%s\" "), hb_itemGetDS( *pBase, szDate ) );
}
break;
case HB_IT_DOUBLE:
printf( HB_I_("DOUBLE = %f "), hb_itemGetND( *pBase ) );
break;
case HB_IT_LOGICAL:
printf( HB_I_("LOGICAL = %s "), hb_itemGetL( *pBase ) ? ".T." : ".F." );
break;
case HB_IT_LONG:
{
char szBuf[ 24 ];
printf( HB_I_("LONG = %s ") , hb_numToStr( szBuf, sizeof( szBuf ), hb_itemGetNInt( *pBase ) ) );
break;
}
case HB_IT_INTEGER:
printf( HB_I_("INTEGER = %i "), hb_itemGetNI( *pBase ) );
break;
case HB_IT_STRING:
printf( HB_I_("STRING = \"%s\" "), hb_itemGetCPtr( *pBase ) );
break;
case HB_IT_SYMBOL:
printf( HB_I_("SYMBOL = %s "), ( *pBase )->item.asSymbol.value->szName );
break;
case HB_IT_POINTER:
printf( HB_I_("POINTER = %p "), ( *pBase )->item.asPointer.value );
break;
default:
printf( HB_I_("UNKNOWN = TYPE %i "), hb_itemType( *pBase ) );
break;
}
}
}
void hb_stackDispCall( void )
{
char buffer[ HB_SYMBOL_NAME_LEN + HB_SYMBOL_NAME_LEN + 5 + 10 ]; /* additional 10 bytes for line info (%hu) overhead */
char file[ _POSIX_PATH_MAX + 1 ];
USHORT uiLine;
int iLevel;
HB_TRACE(HB_TR_DEBUG, ("hb_stackDispCall()"));
iLevel = 0;
while( hb_procinfo( iLevel++, buffer, &uiLine, file ) )
{
int l = strlen( buffer );
hb_snprintf( buffer + l, sizeof( buffer ) - l, "(%hu)%s%s", uiLine, *file ? HB_I_(" in ") : "", file );
hb_conOutErr( "Called from ", 0 );
hb_conOutErr( buffer, 0 );
hb_conOutErr( hb_conNewLine(), 0 );
}
}
/* ------------------------------------------------------------------------ */
/* The garbage collector interface */
/* ------------------------------------------------------------------------ */
#if !defined( HB_MT_VM )
/* helper function to scan all visible memvar variables
*/
static HB_DYNS_FUNC( hb_stackMemvarScan )
{
PHB_ITEM pMemvar;
HB_SYMBOL_UNUSED( Cargo );
pMemvar = hb_dynsymGetMemvar( pDynSymbol );
if( pMemvar && HB_IS_GCITEM( pMemvar ) )
hb_gcItemRef( pMemvar );
return TRUE;
}
#endif
/* Mark all memvars (PRIVATEs and PUBLICs) */
static void hb_stackIsMemvarRef( PHB_STACK pStack )
{
/* 1. Mark all hidden memvars (PRIVATEs and PUBLICs) */
PHB_PRIVATE_STACK pPrivateStack = &pStack->privates;
ULONG ulCount = pPrivateStack->count;
while( ulCount )
{
PHB_ITEM pMemvar = pPrivateStack->stack[ --ulCount ].pPrevMemvar;
if( pMemvar && HB_IS_GCITEM( pMemvar ) )
hb_gcItemRef( pMemvar );
}
/* 2. Mark all visible memvars (PRIVATEs and PUBLICs) */
#if defined( HB_MT_VM )
{
int iDynSym = pStack->iDynH;
while( --iDynSym >= 0 )
{
PHB_ITEM pMemvar = ( PHB_ITEM ) pStack->pDynH[ iDynSym ].pMemvar;
if( pMemvar && HB_IS_GCITEM( pMemvar ) )
hb_gcItemRef( pMemvar );
}
}
#else
hb_dynsymEval( hb_stackMemvarScan, NULL );
#endif
}
/* Mark all thread static variables */
static void hb_stackIsTsdRef( PHB_STACK pStack, PHB_TSD_FUNC pCleanFunc )
{
int iTSD = pStack->iTSD;
while( iTSD )
{
if( pStack->pTSD[iTSD].pTSD &&
pStack->pTSD[iTSD].pTSD->pCleanFunc == pCleanFunc )
{
PHB_ITEM pItem = ( PHB_ITEM ) pStack->pTSD[iTSD].value;
if( HB_IS_GCITEM( pItem ) )
hb_gcItemRef( pItem );
}
--iTSD;
}
}
/* Mark all locals as used so they will not be released by the
* garbage collector
*/
void hb_stackIsStackRef( void * pStackId, PHB_TSD_FUNC pCleanFunc )
{
PHB_STACK pStack;
long lCount;
HB_TRACE(HB_TR_DEBUG, ("hb_stackIsStackRef()"));
pStack = ( PHB_STACK ) pStackId;
lCount = pStack->pPos - pStack->pItems;
while( lCount > 0 )
{
PHB_ITEM pItem = pStack->pItems[ --lCount ];
if( HB_IS_GCITEM( pItem ) )
hb_gcItemRef( pItem );
}
hb_gcItemRef( &pStack->Return );
hb_stackIsMemvarRef( pStack );
if( pCleanFunc )
hb_stackIsTsdRef( pStack, pCleanFunc );
}
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