9aaaadbc6f
* harbour/make_rpm.sh
* check for rpmbuild also when BUGGY_RPM is set
* harbour/make_tgz.sh
* removed rebuild hbpptest with shared libraries
* harbour/include/hbapicls.h
+ added definitions for hb_clsCreate(), hb_clsAdd(), hb_clsAssociate()
* harbour/include/hbapierr.h
* harbour/source/rtl/errorapi.c
+ added hb_errFuncName - pseudo function name which can be used as
operation description in new error object. It should help to simplify
some code and fix function names when RT error is generated from C
function which can be executed from different .prg functions.
* harbour/include/hbclass.ch
+ added some missing Classy(y) compatible object variable type
descriptions: Int, Integer, Block
* harbour/source/rdd/dbfcdx/dbfcdx1.c
! disabled early retrieving from the cache key position and key count
* harbour/include/hbvm.h
* harbour/source/vm/hvm.c
+ added: void hb_vmPushEvalSym( void ) for the code which do not
want to access any [P]HB_SYMB structures
* changed symbol name in hb_symEval from __EVAL to EVAL and modified
hb_symEval registration method to not register hb_vmDoBlock as global
function. Having PHB_DYNS address for "EVAL" in hb_symEval.pDynSym
allows to eliminate some strcmp() when we are looking for EVAL public
symbol.
! fixed symbol table updating in PCODE functions for future multi module
.hrb files
* harbour/source/vm/proc.c
* use hb_symEval.pDynSym instead of strcmp()
* harbour/source/vm/arrays.c
* harbour/source/vm/debug.c
* minor code cleanup
* harbour/source/rtl/tclass.prg
* harbour/source/vm/classes.c
% separate message hash table from methods table - it will cause farther
reduction of allocated memory - many thanks to all people who send
me statistics about number of used classes and symbols from their code.
% use hb_symEval.pDynSym
+ added support for object variable type scope checking like in Class(y).
! fixed typo in pushing object class variables by reference
% s_pClasses is now indexed directly by class handle
% some other optimiztions
! make hidden and non virtual invisible in child classes if it overloaded
some other non hidden method. In such case the overloaded method is used
and can be accessed.
! make friend functions real method class oriented not (super)object for
hidden messages
157 lines
8.6 KiB
C
157 lines
8.6 KiB
C
/*
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* $Id$
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*/
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/*
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* Harbour Project source code:
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* Header file for the Virtual Machine API
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*
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* Copyright 1999 Antonio Linares <alinares@fivetech.com>
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* www - http://www.harbour-project.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307 USA (or visit the web site http://www.gnu.org/).
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*
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* As a special exception, the Harbour Project gives permission for
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* additional uses of the text contained in its release of Harbour.
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*
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* The exception is that, if you link the Harbour libraries with other
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* files to produce an executable, this does not by itself cause the
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* resulting executable to be covered by the GNU General Public License.
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* Your use of that executable is in no way restricted on account of
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* linking the Harbour library code into it.
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*
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* This exception does not however invalidate any other reasons why
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* the executable file might be covered by the GNU General Public License.
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*
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* This exception applies only to the code released by the Harbour
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* Project under the name Harbour. If you copy code from other
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* Harbour Project or Free Software Foundation releases into a copy of
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* Harbour, as the General Public License permits, the exception does
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* not apply to the code that you add in this way. To avoid misleading
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* anyone as to the status of such modified files, you must delete
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* this exception notice from them.
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*
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* If you write modifications of your own for Harbour, it is your choice
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* whether to permit this exception to apply to your modifications.
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* If you do not wish that, delete this exception notice.
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*
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*/
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#ifndef HB_VM_H_
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#define HB_VM_H_
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#include "hbapi.h"
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HB_EXTERN_BEGIN
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/* Harbour virtual machine init/exit functions */
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extern HB_EXPORT void hb_vmInit( BOOL bStartMainProc );
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extern HB_EXPORT int hb_vmQuit( void ); /* Immediately quits the virtual machine, return ERRORLEVEL code */
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/* registration AtInit and AtExit functions - they are executed
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* just before (after) .prg INIT (EXIT) procedures.
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*/
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extern HB_EXPORT void hb_vmAtInit( HB_INIT_FUNC pFunc, void * cargo );
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extern HB_EXPORT void hb_vmAtExit( HB_INIT_FUNC pFunc, void * cargo );
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/* Harbour virtual machine functions */
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extern HB_EXPORT void hb_vmExecute( const BYTE * pCode, PHB_SYMB pSymbols ); /* invokes the virtual machine */
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extern HB_EXPORT PHB_SYMB hb_vmProcessSymbols( PHB_SYMB pSymbols, USHORT uiSymbols ); /* old module symbols initialization */
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extern HB_EXPORT PHB_SYMB hb_vmProcessSymbolsEx( PHB_SYMB pSymbols, USHORT uiSymbols, char * szModuleName, ULONG ulID, USHORT uiPcodeVer ); /* module symbols initialization with extended information */
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#ifdef _HB_API_INTERNAL_
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typedef struct _HB_SYMBOLS
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{
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PHB_SYMB pModuleSymbols; /* pointer to module symbol table */
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USHORT uiModuleSymbols; /* number of symbols on that table */
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struct _HB_SYMBOLS * pNext; /* pointer to the next SYMBOLS structure */
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HB_SYMBOLSCOPE hScope; /* scope collected from all symbols in module used to speed initialization code */
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void * hDynLib; /* handler to dynamic library */
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BOOL fAllocated; /* the symbol table is dynamically allocated and should be freed on HVM exit */
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BOOL fActive; /* the symbol table is currently active */
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BOOL fInitStatics; /* static initialization should be executed */
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char * szModuleName; /* module name */
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ULONG ulID; /* module unique identifier */
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} HB_SYMBOLS, * PHB_SYMBOLS; /* structure to keep track of all modules symbol tables */
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extern PHB_SYMBOLS hb_vmRegisterSymbols( PHB_SYMB pModuleSymbols, USHORT uiSymbols, char * szModuleName, ULONG ulID, BOOL fDynLib, BOOL fClone );
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extern void hb_vmFreeSymbols( PHB_SYMBOLS pSymbols );
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extern void hb_vmBeginSymbolGroup( void * hDynLib, BOOL fClone );
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extern void hb_vmInitSymbolGroup( void * hNewDynLib, int argc, char * argv[] );
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extern void hb_vmExitSymbolGroup( void * hDynLib );
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extern char * hb_vmFindModuleSymbolName( PHB_SYMB pSym );
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extern BOOL hb_vmFindModuleSymbols( PHB_SYMB pSym, PHB_SYMB * pSymbols, USHORT * puiSymbols );
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extern PHB_SYMB hb_vmGetRealFuncSym( PHB_SYMB pSym );
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extern void hb_vmEnumRelease( PHB_ITEM pBase, PHB_ITEM pValue );
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#endif
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extern HB_EXPORT void hb_vmSymbolInit_RT( void ); /* initialization of runtime support symbols */
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/* Harbour virtual machine escaping API */
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extern HB_EXPORT void hb_vmRequestDebug( void );
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extern HB_EXPORT void hb_vmRequestBreak( PHB_ITEM pItem );
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extern HB_EXPORT void hb_vmRequestCancel( void );
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extern HB_EXPORT void hb_vmRequestQuit( void );
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extern HB_EXPORT void hb_vmRequestEndProc( void );
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extern HB_EXPORT USHORT hb_vmRequestQuery( void );
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extern HB_EXPORT BOOL hb_vmRequestReenter( USHORT * puiAction );
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extern HB_EXPORT void hb_vmRequestRestore( USHORT uiAction );
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/* Return values of hb_vmRequestQuery() */
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#define HB_QUIT_REQUESTED 1 /* immediately quit the application */
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#define HB_BREAK_REQUESTED 2 /* break to nearest RECOVER/END sequence */
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#define HB_ENDPROC_REQUESTED 4 /* immediately return from procedure (error handler in macro evaluation) */
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/* Public PCode functions */
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/* Execution */
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extern HB_EXPORT void hb_vmDo( USHORT uiParams ); /* invoke the virtual machine */
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extern HB_EXPORT void hb_vmFunction( USHORT uiParams ); /* executes a function */
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extern HB_EXPORT void hb_vmSend( USHORT uiParams ); /* sends a message to an object */
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extern HB_EXPORT PHB_ITEM hb_vmEvalBlock( PHB_ITEM pBlockItem ); /* executes passed codeblock with no arguments */
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/* executes passed codeblock with variable number of arguments */
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extern HB_EXPORT PHB_ITEM hb_vmEvalBlockV( PHB_ITEM pBlockItem, ULONG ulArgCount, ... );
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extern HB_EXPORT PHB_ITEM hb_vmEvalBlockOrMacro( PHB_ITEM pItem ); /* executes codeblock or macro pointed by given item */
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extern HB_EXPORT void hb_vmDestroyBlockOrMacro( PHB_ITEM pItem ); /* destroy codeblock or macro in given item */
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/* Push */
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extern HB_EXPORT void hb_vmPush( PHB_ITEM pItem ); /* pushes a generic item onto the stack */
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extern HB_EXPORT void hb_vmPushNil( void ); /* in this case it places nil at self */
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extern HB_EXPORT void hb_vmPushNumber( double dNumber, int iDec ); /* pushes a number on to the stack and decides if it is integer, long or double */
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extern HB_EXPORT void hb_vmPushInteger( int iNumber ); /* pushes a integer number onto the stack */
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extern HB_EXPORT void hb_vmPushLong( long lNumber ); /* pushes a long number onto the stack */
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extern HB_EXPORT void hb_vmPushDouble( double lNumber, int iDec ); /* pushes a double number onto the stack */
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extern HB_EXPORT void hb_vmPushLogical( BOOL bValue ); /* pushes a logical value onto the stack */
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extern HB_EXPORT void hb_vmPushString( char * szText, ULONG length ); /* pushes a string on to the stack */
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extern HB_EXPORT void hb_vmPushStringPcode( char * szText, ULONG length ); /* pushes a string from pcode on to the stack */
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extern HB_EXPORT void hb_vmPushDate( long lDate ); /* pushes a long date onto the stack */
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extern HB_EXPORT void hb_vmPushSymbol( PHB_SYMB pSym ); /* pushes a function pointer onto the stack */
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extern HB_EXPORT void hb_vmPushDynSym( PHB_DYNS pDynSym ); /* pushes a function/method pointer onto the stack */
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extern HB_EXPORT void hb_vmPushEvalSym( void ); /* pushes a codeblock eval symbol onto the stack */
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extern HB_EXPORT void hb_vmPushPointer( void * ); /* push an item of HB_IT_POINTER type */
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extern HB_EXPORT void hb_vmPushState( void ); /* push current VM state on stack */
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extern HB_EXPORT void hb_vmPopState( void ); /* pop current VM state from stack */
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/* various flags for supported features */
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#define HB_VMFLAG_HARBOUR 1 /* enable Harbour extension */
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#define HB_VMFLAG_ARRSTR 2 /* support for string as array of bytes -ks */
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extern HB_EXPORT ULONG hb_vmFlagEnabled( ULONG flag );
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HB_EXTERN_END
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#endif /* HB_VM_H_ */
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