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/*
* dlf.h
*
* $Id: dlf.h,v 1.4 2008/09/16 14:52:23 source Exp $
*
* dynamic load functions
*
* This file is part of the OpenLink Software Virtuoso Open-Source (VOS)
* project.
*
* Copyright (C) 1998-2006 OpenLink Software
*
* This project 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; only version 2 of the License, dated June 1991.
*
* 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 program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifndef __DLF_H__
#define __DLF_H__
#if defined (__APPLE__)
#include <AvailabilityMacros.h>
/*
* Mac OS X < 10.3 does not have dlopen
* Mac OS X 10.3 has dlopen, but has some problems so we use DLDAPI_MACX instead
*/
# if MAC_OS_X_VERSION_MIN_REQUIRED <= 1030
# undef HAVE_LIBDL
# define DLDAPI_MACX 1
# else
# define DLDAPI_SVR4_DLFCN 1
# endif /* MAC_OS_X_VERSION_MIN_REQUIRED */
#endif /* defined (__APPLE_) */
/* dlopen stuff */
#if defined(HAVE_LIBDL) || defined(__FreeBSD__)
#define DLDAPI_SVR4_DLFCN
#elif defined(HAVE_SHL_LOAD)
#define DLDAPI_HP_SHL
#elif defined(HAVE_DYLD)
#define DLDAPI_DYLD
#endif
#ifndef DLDAPI_SVR4_DLFCN
/*
* Create internal namespace for dlopen functions
*/
#define dlopen __virtuoso_dlopen
#define dlsym __virtuoso_dlsym
#define dlerror __virtuoso_dlerror
#define dlclose __virtuoso_dlclose
extern void *dlopen (char * path, int mode);
extern void *dlsym (void * hdll, char * sym);
extern char *dlerror ();
extern int dlclose (void * hdll);
#endif
#if defined(DLDAPI_SVR4_DLFCN)
#include <dlfcn.h>
#elif defined(DLDAPI_AIX_LOAD)
#include <dlfcn.h>
#endif
#ifndef RTLD_LAZY
#define RTLD_LAZY 1
#endif
#ifndef RTLD_GLOBAL
#define RTLD_GLOBAL 0x00100
#endif
#define DLL_OPEN(dll) (void*)dlopen((char*)(dll), RTLD_LAZY)
#define DLL_OPEN_GLOBAL(dll) (void*)dlopen((char*)(dll), RTLD_LAZY | RTLD_GLOBAL)
#define DLL_PROC(hdll, sym) (void*)dlsym((void*)(hdll), (char*)sym)
#define DLL_ERROR() (char*)dlerror()
#define DLL_CLOSE(hdll) dlclose((void*)(hdll))
#define DLF_VERSION(msg) \
char __virtuoso_dlf_sccsid[] = "@(#)dynamic load interface -- " msg
#endif /* __DLF_H__ */
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