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harbour-core/harbour/source/vm/runner.c
Przemyslaw Czerpak 0b660d8efd 2009-06-19 14:09 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl) 
- harbour/include/hbhrb.ch
  + harbour/include/hbhrb.ch
    * replaced hbhrb.ch with slightly different version and set SVN
      attributes:
         svn:keywords : Author Date Id Revision
         svn:eol-style : native
      Now optional HB_HRBLOAD()/HB_HRBRUN() parameter is bitfield and
      the following predefined values can be used to control function
      bindings in loaded .hrb files:
         HB_HRB_BIND_DEFAULT      - do not overwrite any functions, ignore
                                    public HRB functions if functions with
                                    the same names already exist in HVM
         HB_HRB_BIND_LOCAL        - do not overwrite any functions
                                    but keep local references, so
                                    if module has public function FOO and
                                    this function exists also in HVM
                                    then the function in HRB is converted
                                    to STATIC one
         HB_HRB_BIND_OVERLOAD     - overload all existing public functions
         HB_HRB_BIND_FORCELOCAL   - covert all public functions to
                                    STATIC ones
      Other HB_HRB_* defines will be added in the future

  * harbour/include/hbvm.h
    * declared hb_vmSetFunction() as internal function

  * harbour/source/vm/hvm.c
    * modified hb_vmSetFunction() to update references also in unused
      modules.

  * harbour/source/vm/runner.c
    * removed CanUnload - it was not fully functional. Modules which
      overloads public functions cen be unload just like any other ones
      but unloading does not restore references to overloaded functions.
      Now such references are simply lost and this should be fixed in the
      future.
    + added support for HB_HRB_BIND_FORCELOCAL
    ! fixed <nOptions> parameter decoding in HB_HRBLOAD() to strictly
      follow declaration:
         HB_HRBLOAD( [ <nOptions>, ] <cHrb> [, <xparams,...> ] )
    ! fixed init procedures parameters in HB_HRBLOAD() to no pass <nOptions>
    + added support for <nOptions> to HB_HRBRUN()
         HB_HRBRUN( [ <nOptions>, ] <cHrb> [, <xparams,...> ] ) -> <retVal>
    * changed HB_HRBRUN() return value - now it's the result of executed
      function instead of .T.
    ! fixed public symbol updating to keep valid references to HB_FS_LOCAL
      function
    ! fixed possible memory leak
    % added const to some char * declarations

   TOFIX/TODO: add support for restoring overloaded functions when module
               is unloaded.
2009-06-19 12:09:26 +00:00

863 lines
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/*
* $Id$
*/
/*
* Harbour Project source code:
* Harbour Portable Object (.hrb) file runner
*
* Copyright 1999 Eddie Runia <eddie@runia.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.
*
*/
/*
* The following functions are added Feb 01,2002 by
* Alexander Kresin <alex@belacy.belgorod.su>
*
* HB_HRBLOAD()
* HB_HRBDO()
* HB_HRBUNLOAD()
* HB_HRBGETFUNSYM()
*/
#include "hbvmint.h"
#include "hbapi.h"
#include "hbstack.h"
#include "hbapiitm.h"
#include "hbapierr.h"
#include "hbapifs.h"
#include "hbvm.h"
#include "hbpcode.h"
#include "hbset.h"
#include "hb_io.h"
#include "hbhrb.ch"
typedef struct
{
char * szName; /* Name of the function */
PHB_PCODEFUNC pCodeFunc; /* Dynamic function info */
BYTE * pCode; /* P-code */
} HB_DYNF, * PHB_DYNF;
typedef struct
{
ULONG ulSymbols; /* Number of symbols */
ULONG ulFuncs; /* Number of functions */
BOOL fInit; /* should be INIT functions executed */
BOOL fExit; /* should be EXIT functions executed */
LONG lSymStart; /* Startup Symbol */
PHB_SYMB pSymRead; /* Symbols read */
PHB_DYNF pDynFunc; /* Functions read */
PHB_SYMBOLS pModuleSymbols;
} HRB_BODY, * PHRB_BODY;
static const BYTE s_szHead[ 4 ] = { 192, 'H', 'R', 'B' };
#define SYM_NOLINK 0 /* symbol does not have to be linked */
#define SYM_FUNC 1 /* function defined in this module */
#define SYM_EXTERN 2 /* function defined in other module */
#define SYM_DEFERRED 3 /* lately bound function */
#define SYM_NOT_FOUND 0xFFFFFFFFUL /* Symbol not found. */
static int hb_hrbReadHead( const char * szBody, ULONG ulBodySize, ULONG * pulBodyOffset )
{
const char * pVersion;
HB_TRACE(HB_TR_DEBUG, ("hb_hrbReadHead(%p,%lu,%p)", szBody, ulBodySize, pulBodyOffset ));
if( ulBodySize < 6 || memcmp( s_szHead, szBody, 4 ) )
return 0;
pVersion = szBody + 4;
*pulBodyOffset += 6;
return HB_PCODE_MKSHORT( pVersion );
}
static BOOL hb_hrbReadValue( const char * szBody, ULONG ulBodySize, ULONG * pulBodyOffset, ULONG * pulValue )
{
HB_TRACE(HB_TR_DEBUG, ("hb_hrbReadValue(%p,%lu,%p,%p)", szBody, ulBodySize, pulBodyOffset, pulValue));
if( *pulBodyOffset + 4 < ulBodySize )
{
*pulValue = HB_PCODE_MKLONG( szBody + *pulBodyOffset );
*pulBodyOffset += 4;
if( *pulValue <= 0x00FFFFFFUL )
{
return TRUE;
}
}
return FALSE;
}
/* ReadId
Read the next (zero terminated) identifier */
static char * hb_hrbReadId( const char * szBody, ULONG ulBodySize, ULONG * ulBodyOffset )
{
const char * szIdx;
HB_TRACE(HB_TR_DEBUG, ("hb_hrbReadId(%p,%lu,%p)", szBody, ulBodySize, ulBodyOffset));
szIdx = &szBody[ *ulBodyOffset ];
do
{
if( *ulBodyOffset > ulBodySize )
return NULL;
}
while( szBody[ ( *ulBodyOffset )++ ] );
return hb_strdup( szIdx );
}
static ULONG hb_hrbFindSymbol( const char * szName, PHB_DYNF pDynFunc, ULONG ulLoaded )
{
ULONG ulRet;
HB_TRACE(HB_TR_DEBUG, ("hb_hrbFindSymbol(%s, %p, %lu)", szName, pDynFunc, ulLoaded));
for( ulRet = 0; ulRet < ulLoaded; ++ulRet )
{
if( ! strcmp( szName, pDynFunc[ ulRet ].szName ) )
return ulRet;
}
return SYM_NOT_FOUND;
}
static void hb_hrbInitStatic( PHRB_BODY pHrbBody )
{
if( ! pHrbBody->fInit && ! pHrbBody->fExit )
{
ULONG ul;
pHrbBody->fInit = TRUE;
/* Initialize static variables first */
for( ul = 0; ul < pHrbBody->ulSymbols; ul++ ) /* Check _INITSTATICS functions */
{
if( ( pHrbBody->pSymRead[ ul ].scope.value & HB_FS_INITEXIT ) == HB_FS_INITEXIT )
{
/* call (_INITSTATICS) function. This function assigns
* literal values to static variables only. There is no need
* to pass any parameters to this function because they
* cannot be used to initialize static variable.
*/
/* changed to call VM execution instead of direct function address call
* pHrbBody->pSymRead[ ul ].value.pFunPtr();
* [MLombardo]
*/
hb_vmPushSymbol( &(pHrbBody->pSymRead[ ul ]) );
hb_vmPushNil();
hb_vmProc( 0 );
}
}
}
}
static void hb_hrbInit( PHRB_BODY pHrbBody, int iPCount, PHB_ITEM * pParams )
{
if( pHrbBody->fInit )
{
if( hb_vmRequestReenter() )
{
ULONG ul;
int i;
pHrbBody->fInit = FALSE;
pHrbBody->fExit = TRUE;
for( ul = 0; ul < pHrbBody->ulSymbols; ul++ ) /* Check INIT functions */
{
if( ( pHrbBody->pSymRead[ ul ].scope.value & HB_FS_INITEXIT ) == HB_FS_INIT )
{
hb_vmPushSymbol( pHrbBody->pSymRead + ul );
hb_vmPushNil();
for( i = 0; i < iPCount; i++ )
hb_vmPush( pParams[ i ] );
hb_vmProc( ( USHORT ) iPCount );
if( hb_vmRequestQuery() != 0 )
break;
}
}
hb_vmRequestRestore();
}
}
}
static void hb_hrbExit( PHRB_BODY pHrbBody )
{
if( pHrbBody->fExit )
{
if( hb_vmRequestReenter() )
{
ULONG ul;
pHrbBody->fExit = FALSE;
pHrbBody->fInit = TRUE;
for( ul = 0; ul < pHrbBody->ulSymbols; ul++ )
{
if( ( pHrbBody->pSymRead[ ul ].scope.value & HB_FS_INITEXIT ) == HB_FS_EXIT )
{
hb_vmPushSymbol( pHrbBody->pSymRead + ul );
hb_vmPushNil();
hb_vmProc( 0 );
if( hb_vmRequestQuery() != 0 )
break;
}
}
hb_vmRequestRestore();
}
}
}
static void hb_hrbUnLoad( PHRB_BODY pHrbBody )
{
ULONG ul;
hb_hrbExit( pHrbBody );
if( pHrbBody->pModuleSymbols )
{
hb_vmFreeSymbols( pHrbBody->pModuleSymbols );
}
if( pHrbBody->pDynFunc )
{
for( ul = 0; ul < pHrbBody->ulFuncs; ul++ )
{
PHB_DYNS pDyn;
if( pHrbBody->pDynFunc[ ul ].szName &&
pHrbBody->pDynFunc[ ul ].pCodeFunc )
{
pDyn = hb_dynsymFind( pHrbBody->pDynFunc[ ul ].szName );
if( pDyn && pDyn->pSymbol->value.pCodeFunc ==
pHrbBody->pDynFunc[ ul ].pCodeFunc )
{
pDyn->pSymbol->value.pCodeFunc = NULL;
}
}
if( pHrbBody->pDynFunc[ ul ].pCodeFunc )
hb_xfree( pHrbBody->pDynFunc[ ul ].pCodeFunc );
if( pHrbBody->pDynFunc[ ul ].pCode )
hb_xfree( pHrbBody->pDynFunc[ ul ].pCode );
if( pHrbBody->pDynFunc[ ul ].szName )
hb_xfree( pHrbBody->pDynFunc[ ul ].szName );
}
hb_xfree( pHrbBody->pDynFunc );
}
hb_xfree( pHrbBody );
}
static PHRB_BODY hb_hrbLoad( const char * szHrbBody, ULONG ulBodySize, USHORT usMode )
{
PHRB_BODY pHrbBody = NULL;
if( szHrbBody )
{
ULONG ulBodyOffset = 0;
ULONG ulSize; /* Size of function */
ULONG ul, ulPos;
char * buffer, ch;
USHORT usBind = ( usMode & HB_HRB_BIND_MASK );
PHB_SYMB pSymRead; /* Symbols read */
PHB_DYNF pDynFunc; /* Functions read */
PHB_DYNS pDynSym;
int iVersion = hb_hrbReadHead( szHrbBody, ulBodySize, &ulBodyOffset );
if( iVersion == 0 )
{
hb_errRT_BASE( EG_CORRUPTION, 9995, NULL, HB_ERR_FUNCNAME, 0 );
return NULL;
}
pHrbBody = ( PHRB_BODY ) hb_xgrab( sizeof( HRB_BODY ) );
pHrbBody->fInit = FALSE;
pHrbBody->fExit = FALSE;
pHrbBody->lSymStart = -1;
pHrbBody->ulFuncs = 0;
pHrbBody->pSymRead = NULL;
pHrbBody->pDynFunc = NULL;
pHrbBody->pModuleSymbols = NULL;
if( ! hb_hrbReadValue( szHrbBody, ulBodySize, &ulBodyOffset, &pHrbBody->ulSymbols ) ||
pHrbBody->ulSymbols == 0 )
{
hb_hrbUnLoad( pHrbBody );
hb_errRT_BASE( EG_CORRUPTION, 9996, NULL, HB_ERR_FUNCNAME, 0 );
return NULL;
}
/* calculate the size of dynamic symbol table */
ulPos = ulBodyOffset;
ulSize = 0;
for( ul = 0; ul < pHrbBody->ulSymbols; ul++ ) /* Read symbols in .hrb */
{
while( ulBodyOffset < ulBodySize )
{
++ulSize;
if( szHrbBody[ ulBodyOffset++ ] == 0 )
break;
}
ulBodyOffset += 2;
if( ulBodyOffset >= ulBodySize )
{
hb_hrbUnLoad( pHrbBody );
hb_errRT_BASE( EG_CORRUPTION, 9997, NULL, HB_ERR_FUNCNAME, 0 );
return NULL;
}
}
ulBodyOffset = ulPos;
ul = pHrbBody->ulSymbols * sizeof( HB_SYMB );
pSymRead = ( PHB_SYMB ) hb_xgrab( ulSize + ul );
buffer = ( ( char * ) pSymRead ) + ul;
for( ul = 0; ul < pHrbBody->ulSymbols; ul++ ) /* Read symbols in .hrb */
{
pSymRead[ ul ].szName = buffer;
do
ch = *buffer++ = szHrbBody[ ulBodyOffset++ ];
while( ch );
pSymRead[ ul ].scope.value = ( BYTE ) szHrbBody[ ulBodyOffset++ ];
pSymRead[ ul ].value.pCodeFunc = ( PHB_PCODEFUNC ) ( HB_PTRDIFF ) szHrbBody[ ulBodyOffset++ ];
pSymRead[ ul ].pDynSym = NULL;
if( pHrbBody->lSymStart == -1 &&
( pSymRead[ ul ].scope.value & HB_FS_FIRST ) != 0 &&
( pSymRead[ ul ].scope.value & HB_FS_INITEXIT ) == 0 )
{
pHrbBody->lSymStart = ul;
}
}
/* Read number of functions */
if( ! hb_hrbReadValue( szHrbBody, ulBodySize, &ulBodyOffset, &pHrbBody->ulFuncs ) )
{
hb_xfree( pSymRead );
hb_hrbUnLoad( pHrbBody );
hb_errRT_BASE( EG_CORRUPTION, 9997, NULL, HB_ERR_FUNCNAME, 0 );
return NULL;
}
pHrbBody->pSymRead = pSymRead;
if( pHrbBody->ulFuncs )
{
pDynFunc = ( PHB_DYNF ) hb_xgrab( pHrbBody->ulFuncs * sizeof( HB_DYNF ) );
memset( pDynFunc, 0, pHrbBody->ulFuncs * sizeof( HB_DYNF ) );
pHrbBody->pDynFunc = pDynFunc;
for( ul = 0; ul < pHrbBody->ulFuncs; ul++ )
{
/* Read name of function */
pDynFunc[ ul ].szName = hb_hrbReadId( szHrbBody, ulBodySize, &ulBodyOffset );
if( pDynFunc[ ul ].szName == NULL )
break;
/* Read size of function */
if( ! hb_hrbReadValue( szHrbBody, ulBodySize, &ulBodyOffset, &ulSize ) ||
ulBodyOffset + ulSize > ulBodySize )
break;
/* Copy function body */
pDynFunc[ ul ].pCode = ( BYTE * ) hb_xgrab( ulSize );
memcpy( ( char * ) pDynFunc[ ul ].pCode, szHrbBody + ulBodyOffset, ulSize );
ulBodyOffset += ulSize;
pDynFunc[ ul ].pCodeFunc = (PHB_PCODEFUNC) hb_xgrab( sizeof( HB_PCODEFUNC ) );
pDynFunc[ ul ].pCodeFunc->pCode = pDynFunc[ ul ].pCode;
pDynFunc[ ul ].pCodeFunc->pSymbols = pSymRead;
}
if( ul < pHrbBody->ulFuncs )
{
hb_xfree( pSymRead );
hb_hrbUnLoad( pHrbBody );
hb_errRT_BASE( EG_CORRUPTION, 9998, NULL, HB_ERR_FUNCNAME, 0 );
return NULL;
}
}
/* End of PCODE loading, now linking */
for( ul = 0; ul < pHrbBody->ulSymbols; ul++ )
{
if( pSymRead[ ul ].value.pCodeFunc == ( PHB_PCODEFUNC ) SYM_FUNC )
{
ulPos = hb_hrbFindSymbol( pSymRead[ ul ].szName, pHrbBody->pDynFunc, pHrbBody->ulFuncs );
if( ulPos == SYM_NOT_FOUND )
{
pSymRead[ ul ].value.pCodeFunc = ( PHB_PCODEFUNC ) SYM_EXTERN;
}
else
{
pSymRead[ ul ].value.pCodeFunc = ( PHB_PCODEFUNC ) pHrbBody->pDynFunc[ ulPos ].pCodeFunc;
pSymRead[ ul ].scope.value |= HB_FS_PCODEFUNC | HB_FS_LOCAL |
( usBind == HB_HRB_BIND_FORCELOCAL ? HB_FS_STATIC : 0 );
}
}
else if( pSymRead[ ul ].value.pCodeFunc == ( PHB_PCODEFUNC ) SYM_DEFERRED )
{
pSymRead[ ul ].value.pCodeFunc = ( PHB_PCODEFUNC ) SYM_EXTERN;
pSymRead[ ul ].scope.value |= HB_FS_DEFERRED;
}
/* External function */
if( pSymRead[ ul ].value.pCodeFunc == ( PHB_PCODEFUNC ) SYM_EXTERN )
{
pDynSym = hb_dynsymFind( pSymRead[ ul ].szName );
if( pDynSym )
{
pSymRead[ ul ].value.pFunPtr = pDynSym->pSymbol->value.pFunPtr;
if( pDynSym->pSymbol->scope.value & HB_FS_PCODEFUNC )
{
pSymRead[ ul ].scope.value |= HB_FS_PCODEFUNC;
}
}
else if( ( pSymRead[ ul ].scope.value & HB_FS_DEFERRED ) == 0 )
{
char szName[ HB_SYMBOL_NAME_LEN + 1 ];
hb_strncpy( szName, pSymRead[ ul ].szName, sizeof( szName ) - 1 );
hb_xfree( pSymRead );
hb_hrbUnLoad( pHrbBody );
hb_errRT_BASE( EG_ARG, 6101, "Unknown or unregistered symbol", szName, 0 );
return NULL;
}
}
}
if( hb_vmLockModuleSymbols() )
{
if( usBind == HB_HRB_BIND_LOCAL || usBind == HB_HRB_BIND_OVERLOAD )
{
for( ul = 0; ul < pHrbBody->ulSymbols; ul++ )
{
if( pSymRead[ ul ].value.pCodeFunc != ( PHB_PCODEFUNC ) SYM_EXTERN &&
( pSymRead[ ul ].scope.value & HB_FS_LOCAL ) != 0 )
{
pDynSym = hb_dynsymFind( pSymRead[ ul ].szName );
if( pDynSym )
{
if( usBind == HB_HRB_BIND_LOCAL )
{
/* convert public function to static one */
pSymRead[ ul ].scope.value |= HB_FS_STATIC;
}
else
{
/* overload existing public function */
hb_vmSetFunction( pDynSym->pSymbol, &pSymRead[ ul ] );
pDynSym->pSymbol = &pSymRead[ ul ];
}
}
}
}
}
pHrbBody->pModuleSymbols = hb_vmRegisterSymbols( pHrbBody->pSymRead,
( USHORT ) pHrbBody->ulSymbols, "pcode.hrb", 0, TRUE, FALSE );
if( pHrbBody->pModuleSymbols->pModuleSymbols != pSymRead )
{
/*
* Old unused symbol table has been recycled - free the one
* we allocated and disactivate static initialization [druzus]
*/
pHrbBody->pSymRead = pHrbBody->pModuleSymbols->pModuleSymbols;
hb_xfree( pSymRead );
pHrbBody->fInit = TRUE;
}
else
{
/* mark symbol table as dynamically allocated so HVM will free it on exit */
pHrbBody->pModuleSymbols->fAllocated = TRUE;
/* initialize static variables */
hb_hrbInitStatic( pHrbBody );
}
hb_vmUnlockModuleSymbols();
}
else
{
hb_xfree( pSymRead );
hb_hrbUnLoad( pHrbBody );
pHrbBody = NULL;
}
}
return pHrbBody;
}
static PHRB_BODY hb_hrbLoadFromFile( const char * szHrb, USHORT usMode )
{
char szFileName[ HB_PATH_MAX ];
PHRB_BODY pHrbBody = NULL;
PHB_FNAME pFileName;
HB_FHANDLE hFile;
/* Create full filename */
pFileName = hb_fsFNameSplit( szHrb );
if( pFileName->szExtension == NULL && hb_stackSetStruct()->HB_SET_DEFEXTENSIONS )
{
pFileName->szExtension = ".hrb";
}
hb_fsFNameMerge( szFileName, pFileName );
hb_xfree( pFileName );
/* Open as binary */
do
{
hFile = hb_fsOpen( ( BYTE * ) szFileName, FO_READ );
}
while( hFile == FS_ERROR &&
hb_errRT_BASE_Ext1( EG_OPEN, 6102, NULL, szFileName, hb_fsError(),
EF_CANDEFAULT | EF_CANRETRY,
HB_ERR_ARGS_BASEPARAMS ) == E_RETRY );
if( hFile != FS_ERROR )
{
ULONG ulBodySize = hb_fsSeek( hFile, 0, FS_END );
if( ulBodySize )
{
BYTE * pbyBuffer;
pbyBuffer = ( BYTE * ) hb_xgrab( ulBodySize + sizeof( char ) + 1 );
hb_fsSeek( hFile, 0, FS_SET );
hb_fsReadLarge( hFile, pbyBuffer, ulBodySize );
pbyBuffer[ ulBodySize ] = '\0';
pHrbBody = hb_hrbLoad( ( const char * ) pbyBuffer, ( ULONG ) ulBodySize, usMode );
hb_xfree( pbyBuffer );
}
hb_fsClose( hFile );
}
return pHrbBody;
}
static void hb_hrbDo( PHRB_BODY pHrbBody, int iPCount, PHB_ITEM * pParams )
{
PHB_ITEM pRetVal = NULL;
int i;
hb_hrbInit( pHrbBody, iPCount, pParams );
/* May not have a startup symbol, if first symbol was an INIT Symbol (was executed already).*/
if( pHrbBody->lSymStart >= 0 && hb_vmRequestQuery() == 0 )
{
hb_vmPushSymbol( &pHrbBody->pSymRead[ pHrbBody->lSymStart ] );
hb_vmPushNil();
for( i = 0; i < iPCount; i++ )
hb_vmPush( pParams[ i ] );
hb_vmProc( ( USHORT ) iPCount );
pRetVal = hb_itemNew( NULL );
hb_itemMove( pRetVal, hb_stackReturnItem() );
}
hb_hrbExit( pHrbBody );
if( pRetVal )
{
hb_itemReturnRelease( pRetVal );
}
}
/* HRB module destructor */
static HB_GARBAGE_FUNC( hb_hrb_Destructor )
{
PHRB_BODY * pHrbPtr = ( PHRB_BODY * ) Cargo;
if( *pHrbPtr )
{
hb_hrbUnLoad( *pHrbPtr );
*pHrbPtr = NULL;
}
}
static PHRB_BODY hb_hrbParam( int iParam )
{
PHRB_BODY * pHrbPtr = ( PHRB_BODY * ) hb_parptrGC( hb_hrb_Destructor, iParam );
return pHrbPtr ? *pHrbPtr : NULL;
}
static void hb_hrbReturn( PHRB_BODY pHrbBody )
{
PHRB_BODY * pHrbPtr = ( PHRB_BODY * ) hb_gcAlloc( sizeof( PHRB_BODY ),
hb_hrb_Destructor );
*pHrbPtr = pHrbBody;
hb_retptrGC( pHrbPtr );
}
/*
HB_HRBRUN( [ <nOptions>, ] <cHrb> [, <xparams,...> ] ) -> <retVal>
This program will get the data from the .hrb file and run the p-code
contained in it.
In due time it should also be able to collect the data from the
binary/executable itself
*/
HB_FUNC( HB_HRBRUN )
{
USHORT usMode = HB_HRB_BIND_DEFAULT;
USHORT nParam = 1;
ULONG ulLen;
if( HB_ISNUM( 1 ) )
{
usMode = ( USHORT ) hb_parni( 1 );
nParam++;
}
ulLen = hb_parclen( nParam );
if( ulLen > 0 )
{
const char * fileOrBody = hb_parc( nParam );
PHRB_BODY pHrbBody;
if( ulLen > 4 && memcmp( s_szHead, fileOrBody, 4 ) == 0 )
pHrbBody = hb_hrbLoad( fileOrBody, ulLen, usMode );
else
pHrbBody = hb_hrbLoadFromFile( fileOrBody, usMode );
if( pHrbBody )
{
int iPCount = hb_pcount() - nParam, i;
PHB_ITEM * pParams = NULL;
if( iPCount > 0 )
{
pParams = ( PHB_ITEM * ) hb_xgrab( sizeof( PHB_ITEM ) * iPCount );
for( i = 0; i < iPCount; i++ )
pParams[ i ] = hb_stackItemFromBase( i + 1 + nParam );
}
hb_hrbDo( pHrbBody, iPCount, pParams );
if( pParams )
hb_xfree( pParams );
hb_hrbUnLoad( pHrbBody );
}
}
else
hb_errRT_BASE( EG_ARG, 6103, NULL, HB_ERR_FUNCNAME, HB_ERR_ARGS_BASEPARAMS );
}
/* HB_HRBLOAD( [ <nOptions>, ] <cHrb> [, <xparams,...> ] ) */
HB_FUNC( HB_HRBLOAD )
{
USHORT usMode = HB_HRB_BIND_DEFAULT;
USHORT nParam = 1;
ULONG ulLen;
if( HB_ISNUM( 1 ) )
{
usMode = ( USHORT ) hb_parni( 1 );
nParam++;
}
ulLen = hb_parclen( nParam );
if( ulLen > 0 )
{
const char * fileOrBody = hb_parc( nParam );
PHRB_BODY pHrbBody;
if( ulLen > 4 && memcmp( s_szHead, fileOrBody, 4 ) == 0 )
pHrbBody = hb_hrbLoad( fileOrBody, ulLen, usMode );
else
pHrbBody = hb_hrbLoadFromFile( fileOrBody, usMode );
if( pHrbBody )
{
int iPCount = hb_pcount() - nParam;
PHB_ITEM * pParams = NULL;
int i;
if( iPCount > 0 )
{
pParams = ( PHB_ITEM * ) hb_xgrab( sizeof( PHB_ITEM ) * iPCount );
for( i = 0; i < iPCount; i++ )
pParams[ i ] = hb_stackItemFromBase( i + 1 + nParam );
}
hb_hrbInit( pHrbBody, iPCount, pParams );
if( pParams )
hb_xfree( pParams );
}
hb_hrbReturn( pHrbBody );
}
else
hb_errRT_BASE( EG_ARG, 9998, NULL, HB_ERR_FUNCNAME, HB_ERR_ARGS_BASEPARAMS );
}
HB_FUNC( HB_HRBDO )
{
PHRB_BODY pHrbBody = hb_hrbParam( 1 );
if( pHrbBody )
{
int iPCount = hb_pcount() - 1;
PHB_ITEM * pParams = NULL;
int i;
if( iPCount > 0 )
{
pParams = ( PHB_ITEM * ) hb_xgrab( sizeof( PHB_ITEM ) * iPCount );
for( i = 0; i < iPCount; i++ )
pParams[ i ] = hb_stackItemFromBase( i + 2 );
}
hb_hrbDo( pHrbBody, iPCount, pParams );
if( pParams )
hb_xfree( pParams );
}
else
hb_errRT_BASE( EG_ARG, 6104, NULL, HB_ERR_FUNCNAME, HB_ERR_ARGS_BASEPARAMS );
}
HB_FUNC( HB_HRBUNLOAD )
{
PHRB_BODY * pHrbPtr = ( PHRB_BODY * ) hb_parptrGC( hb_hrb_Destructor, 1 );
if( pHrbPtr )
{
PHRB_BODY pHrbBody = *pHrbPtr;
if( pHrbBody )
{
*pHrbPtr = NULL;
hb_hrbUnLoad( pHrbBody );
}
}
else
hb_errRT_BASE( EG_ARG, 6105, NULL, HB_ERR_FUNCNAME, HB_ERR_ARGS_BASEPARAMS );
}
HB_FUNC( HB_HRBGETFUNSYM )
{
PHRB_BODY pHrbBody = hb_hrbParam( 1 );
const char * szName = hb_parc( 2 );
if( pHrbBody && szName )
{
PHB_SYMB pSym;
ULONG ulPos;
for( ulPos = 0, pSym = pHrbBody->pSymRead; ulPos < pHrbBody->ulSymbols; ++pSym, ++ulPos )
{
if( pSym->value.pFunPtr != NULL && hb_stricmp( szName, pSym->szName ) == 0 )
{
hb_itemPutSymbol( hb_stackReturnItem(), pSym );
break;
}
}
}
else
hb_errRT_BASE( EG_ARG, 6106, NULL, HB_ERR_FUNCNAME, HB_ERR_ARGS_BASEPARAMS );
}
/* NOTE: Deprecated compatibility functions. */
#ifdef HB_LEGACY_LEVEL2
HB_FUNC( __HRBRUN )
{
HB_FUNC_EXEC( HB_HRBRUN );
}
HB_FUNC( __HRBLOAD )
{
HB_FUNC_EXEC( HB_HRBLOAD );
}
HB_FUNC( __HRBUNLOAD )
{
HB_FUNC_EXEC( HB_HRBUNLOAD );
}
HB_FUNC( __HRBDO )
{
HB_FUNC_EXEC( HB_HRBDO );
}
HB_FUNC( __HRBGETFU )
{
HB_FUNC_EXEC( HB_HRBGETFUNSYM );
}
#endif
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