115 lines
5.1 KiB
C
115 lines
5.1 KiB
C
/*
|
|
* $Id$
|
|
*/
|
|
|
|
/*
|
|
* Harbour Project source code:
|
|
* Header file for the Virtual Machine API
|
|
*
|
|
* 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.
|
|
*
|
|
*/
|
|
|
|
#ifndef HB_VM_H_
|
|
#define HB_VM_H_
|
|
|
|
#include "hbapi.h"
|
|
|
|
#if defined(HB_EXTERN_C)
|
|
extern "C" {
|
|
#endif
|
|
|
|
/* Harbour virtual machine init/exit functions */
|
|
extern void hb_vmInit( BOOL bStartMainProc );
|
|
extern void hb_vmQuit( void ); /* Immediately quits the virtual machine */
|
|
|
|
/* Harbour virtual machine functions */
|
|
extern void hb_vmExecute( const BYTE * pCode, PHB_SYMB pSymbols ); /* invokes the virtual machine */
|
|
extern void hb_vmProcessSymbols( PHB_SYMB pSymbols, USHORT uiSymbols ); /* statics symbols initialization */
|
|
extern void hb_vmSymbolInit_RT( void ); /* initialization of runtime support symbols */
|
|
|
|
/* Harbour virtual machine escaping API */
|
|
extern void hb_vmRequestQuit( void );
|
|
extern void hb_vmRequestEndProc( void );
|
|
extern void hb_vmRequestCancel( void );
|
|
extern void hb_vmRequestBreak( PHB_ITEM pItem );
|
|
extern USHORT hb_vmRequestQuery( void );
|
|
|
|
/* Return values of hb_vmRequestQuery() */
|
|
#define HB_QUIT_REQUESTED 1 /* immediately quit the application */
|
|
#define HB_BREAK_REQUESTED 2 /* break to nearest RECOVER/END sequence */
|
|
#define HB_ENDPROC_REQUESTED 4 /* immediately return from procedure (error handler in macro evaluation) */
|
|
|
|
/* Public PCode functions */
|
|
|
|
/* Object */
|
|
extern void hb_vmMessage( PHB_SYMB pSymMsg ); /* sends a message to an object */
|
|
|
|
/* Execution */
|
|
extern void hb_vmDo( USHORT uiParams ); /* invoke the virtual machine */
|
|
extern void hb_vmFunction( USHORT uiParams ); /* executes a function saving its result */
|
|
extern void hb_vmSend( USHORT uiParams ); /* sends a message to an object */
|
|
extern PHB_ITEM hb_vmEvalBlock( PHB_ITEM pBlockItem ); /* executes passed codeblock with no arguments */
|
|
/* executes passed codeblock with variable number of arguments */
|
|
extern PHB_ITEM hb_vmEvalBlockV( PHB_ITEM pBlockItem, USHORT uiArgCount, ... );
|
|
|
|
/* Push */
|
|
extern void hb_vmPush( PHB_ITEM pItem ); /* pushes a generic item onto the stack */
|
|
extern void hb_vmPushNil( void ); /* in this case it places nil at self */
|
|
extern void hb_vmPushNumber( double dNumber, int iDec ); /* pushes a number on to the stack and decides if it is integer, long or double */
|
|
extern void hb_vmPushInteger( int iNumber ); /* pushes a integer number onto the stack */
|
|
extern void hb_vmPushLong( long lNumber ); /* pushes a long number onto the stack */
|
|
extern void hb_vmPushDouble( double lNumber, int iDec ); /* pushes a double number onto the stack */
|
|
extern void hb_vmPushLogical( BOOL bValue ); /* pushes a logical value onto the stack */
|
|
extern void hb_vmPushString( char * szText, ULONG length ); /* pushes a string on to the stack */
|
|
extern void hb_vmPushDate( long lDate ); /* pushes a long date onto the stack */
|
|
extern void hb_vmPushSymbol( PHB_SYMB pSym ); /* pushes a function pointer onto the stack */
|
|
extern void hb_vmPushPointer( void * ); /* push an item of HB_IT_POINTER type */
|
|
|
|
#if defined(HB_EXTERN_C)
|
|
}
|
|
#endif
|
|
|
|
#endif /* HB_VM_H_ */
|
|
|