/tags/harbour-1.0.0/source/vm/dynlibhb.c
C | 214 lines | 125 code | 24 blank | 65 comment | 21 complexity | ead1a06a0b6466fadff57d25b7a9dcc7 MD5 | raw file
Possible License(s): AGPL-1.0, BSD-3-Clause, CC-BY-SA-3.0, LGPL-3.0, GPL-2.0, LGPL-2.0, LGPL-2.1
- /*
- * $Id: dynlibhb.c 9042 2008-08-01 01:06:47Z druzus $
- */
- /*
- * Harbour Project source code:
- * Dynamic link libraries management functions
- *
- * Copyright 2001 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 of the License, or
- * (at your option) any later version, with one exception:
- *
- * 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_OS_WIN_32_USED
- #include "hbvmopt.h"
- #include "hbapi.h"
- #include "hbapiitm.h"
- #include "hbstack.h"
- #include "hbvm.h"
- #if defined(HB_OS_LINUX) && !defined(__WATCOMC__)
- # include <dlfcn.h>
- #endif
- /* This releases regex when called from the garbage collector */
- static HB_GARBAGE_FUNC( hb_libRelease )
- {
- /* do nothing */
- HB_SYMBOL_UNUSED( Cargo );
- }
- #if defined(HB_OS_WIN_32) || ( defined(HB_OS_LINUX) && !defined(__WATCOMC__) )
- static void * hb_parlib( int iParam )
- {
- void ** pDynLibPtr = ( void ** ) hb_parptrGC( hb_libRelease, iParam );
- return pDynLibPtr ? * pDynLibPtr : NULL;
- }
- #endif
- HB_FUNC( HB_LIBLOAD )
- {
- void * hDynLib = NULL;
- #if defined(HB_OS_WIN_32)
- if( hb_parclen( 1 ) > 0 )
- {
- int argc = hb_pcount() - 1, i;
- char **argv = NULL;
- if( argc > 0 )
- {
- argv = ( char** ) hb_xgrab( sizeof( char* ) * argc );
- for( i = 0; i < argc; ++i )
- {
- argv[i] = hb_parcx( i + 2 );
- }
- }
- /* use stack address as first level marker */
- hb_vmBeginSymbolGroup( ( void * ) hb_stackId(), TRUE );
- hDynLib = ( void * ) LoadLibraryA( hb_parc( 1 ) );
- /* set real marker */
- hb_vmInitSymbolGroup( hDynLib, argc, argv );
- if( argv )
- {
- hb_xfree( argv );
- }
- }
- #elif defined(HB_OS_LINUX) && !defined(__WATCOMC__)
- if( hb_parclen( 1 ) > 0 )
- {
- int argc = hb_pcount() - 1, i;
- char **argv = NULL;
- if( argc > 0 )
- {
- argv = ( char** ) hb_xgrab( sizeof( char* ) * argc );
- for( i = 0; i < argc; ++i )
- {
- argv[i] = hb_parcx( i + 2 );
- }
- }
- /* use stack address as first level marker */
- hb_vmBeginSymbolGroup( ( void * ) hb_stackId(), TRUE );
- hDynLib = ( void * ) dlopen( hb_parc( 1 ), RTLD_LAZY | RTLD_GLOBAL );
- /* set real marker */
- hb_vmInitSymbolGroup( hDynLib, argc, argv );
- if( argv )
- {
- hb_xfree( argv );
- }
- }
- #endif
- if( hDynLib )
- {
- void ** pLibPtr = ( void ** ) hb_gcAlloc( sizeof( void * ), hb_libRelease );
- * pLibPtr = hDynLib;
- hb_retptrGC( pLibPtr );
- }
- else
- hb_ret();
- }
- HB_FUNC( HB_LIBFREE )
- {
- #if defined(HB_OS_WIN_32)
- void * hDynLib = hb_parlib( 1 );
- if( hDynLib )
- {
- hb_vmExitSymbolGroup( hDynLib );
- hb_retl( FreeLibrary( ( HMODULE ) hDynLib ) );
- }
- else
- #elif defined(HB_OS_LINUX) && !defined(__WATCOMC__)
- void * hDynLib = hb_parlib( 1 );
- if( hDynLib )
- {
- hb_vmExitSymbolGroup( hDynLib );
- hb_retl( dlclose( hDynLib ) == 0 );
- }
- else
- #endif
- {
- hb_retl( FALSE );
- }
- }
- HB_FUNC( HB_LIBERROR )
- {
- #if defined(HB_OS_LINUX) && !defined(__WATCOMC__)
- hb_retc( dlerror() );
- #else
- hb_retc( NULL );
- #endif
- }
- /* Executes a Harbour pcode dynamically loaded DLL function or procedure
- * Syntax: HB_libDo( <cFuncName> [,<params...>] ) --> [<uResult>]
- */
- HB_FUNC( HB_LIBDO )
- {
- if( hb_parclen( 1 ) > 0 )
- {
- PHB_DYNS pDynSym = hb_dynsymFindName( hb_parc( 1 ) );
- if( pDynSym )
- {
- USHORT uiPCount = hb_pcount();
- USHORT uiParam;
- hb_vmPushSymbol( pDynSym->pSymbol );
- hb_vmPushNil();
- /* same logic here as from HB_FUNC( EVAL ) */
- for( uiParam = 2; uiParam <= uiPCount; uiParam++ )
- {
- hb_vmPush( hb_stackItemFromBase( uiParam ) );
- }
- hb_vmDo( ( USHORT ) ( uiPCount - 1 ) );
- }
- }
- }