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#ifndef IVL_ivl_dlfcn_H
#define IVL_ivl_dlfcn_H
/*
* Copyright (c) 2001-2014 Stephen Williams (steve@icarus.com)
*
* This source code is free software; you can redistribute it
* and/or modify it in source code form 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.
*
* 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 Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#if defined(__MINGW32__)
# include <windows.h>
# include <stdio.h>
typedef void * ivl_dll_t;
#elif defined(HAVE_DLFCN_H)
# include <dlfcn.h>
typedef void* ivl_dll_t;
#elif defined(HAVE_DL_H)
# include <dl.h>
typedef shl_t ivl_dll_t;
#endif
#if defined(__MINGW32__)
static __inline__ ivl_dll_t ivl_dlopen(const char *name)
{ return (void *)LoadLibrary(name); }
static __inline__ void *ivl_dlsym(ivl_dll_t dll, const char *nm)
{ return (void *)GetProcAddress((HINSTANCE)dll,nm);}
static __inline__ void ivl_dlclose(ivl_dll_t dll)
{ (void)FreeLibrary((HINSTANCE)dll);}
static __inline__ const char *dlerror(void)
{
static char msg[256];
unsigned long err = GetLastError();
FormatMessage(
FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
err,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
(LPTSTR) &msg,
sizeof(msg) - 1,
NULL
);
return msg;
}
#elif defined(HAVE_DLFCN_H)
static __inline__ ivl_dll_t ivl_dlopen(const char*name)
{ return dlopen(name,RTLD_LAZY); }
static __inline__ void* ivl_dlsym(ivl_dll_t dll, const char*nm)
{
void*sym = dlsym(dll, nm);
/* Not found? try without the leading _ */
if (sym == 0 && nm[0] == '_')
sym = dlsym(dll, nm+1);
return sym;
}
static __inline__ void ivl_dlclose(ivl_dll_t dll)
{ dlclose(dll); }
#elif defined(HAVE_DL_H)
static __inline__ ivl_dll_t ivl_dlopen(const char*name)
{ return shl_load(name, BIND_IMMEDIATE, 0); }
static __inline__ void* ivl_dlsym(ivl_dll_t dll, const char*nm)
{
void*sym;
int rc = shl_findsym(&dll, nm, TYPE_PROCEDURE, &sym);
return (rc == 0) ? sym : 0;
}
static __inline__ void ivl_dlclose(ivl_dll_t dll)
{ shl_unload(dll); }
static __inline__ const char*dlerror(void)
{ return strerror( errno ); }
#endif
#endif /* IVL_ivl_dlfcn_H */
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