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- /* lt_dlloader.h -- dynamic library loader interface
- Copyright (C) 2004, 2007-2008, 2011-2015 Free Software Foundation,
- Inc.
- Written by Gary V. Vaughan, 2004
- NOTE: The canonical source of this file is maintained with the
- GNU Libtool package. Report bugs to bug-libtool@gnu.org.
- GNU Libltdl is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
- As a special exception to the GNU Lesser General Public License,
- if you distribute this file as part of a program or library that
- is built using GNU Libtool, you may include this file under the
- same distribution terms that you use for the rest of that program.
- GNU Libltdl 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 Lesser General Public License for more details.
- You should have received a copy of the GNU Lesser General Public
- License along with GNU Libltdl; see the file COPYING.LIB. If not, a
- copy can be downloaded from http://www.gnu.org/licenses/lgpl.html,
- or obtained by writing to the Free Software Foundation, Inc.,
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
- #if !defined LT_DLLOADER_H
- #define LT_DLLOADER_H 1
- #include <libltdl/lt_system.h>
- LT_BEGIN_C_DECLS
- typedef void * lt_dlloader;
- typedef void * lt_module;
- typedef void * lt_user_data;
- typedef struct lt__advise * lt_dladvise;
- /* Function pointer types for module loader vtable entries: */
- typedef lt_module lt_module_open (lt_user_data data,
- const char *filename,
- lt_dladvise advise);
- typedef int lt_module_close (lt_user_data data,
- lt_module module);
- typedef void * lt_find_sym (lt_user_data data, lt_module module,
- const char *symbolname);
- typedef int lt_dlloader_init (lt_user_data data);
- typedef int lt_dlloader_exit (lt_user_data data);
- /* Default priority is LT_DLLOADER_PREPEND if none is explicitly given. */
- typedef enum {
- LT_DLLOADER_PREPEND = 0, LT_DLLOADER_APPEND
- } lt_dlloader_priority;
- /* This structure defines a module loader, as populated by the get_vtable
- entry point of each loader. */
- typedef struct {
- const char * name;
- const char * sym_prefix;
- lt_module_open * module_open;
- lt_module_close * module_close;
- lt_find_sym * find_sym;
- lt_dlloader_init * dlloader_init;
- lt_dlloader_exit * dlloader_exit;
- lt_user_data dlloader_data;
- lt_dlloader_priority priority;
- } lt_dlvtable;
- LT_SCOPE int lt_dlloader_add (const lt_dlvtable *vtable);
- LT_SCOPE lt_dlloader lt_dlloader_next (const lt_dlloader loader);
- LT_SCOPE lt_dlvtable * lt_dlloader_remove (const char *name);
- LT_SCOPE const lt_dlvtable *lt_dlloader_find (const char *name);
- LT_SCOPE const lt_dlvtable *lt_dlloader_get (lt_dlloader loader);
- /* Type of a function to get a loader's vtable: */
- typedef const lt_dlvtable *lt_get_vtable (lt_user_data data);
- #ifdef LT_DEBUG_LOADERS
- LT_SCOPE void lt_dlloader_dump (void);
- #endif
- LT_END_C_DECLS
- #endif /*!defined LT_DLLOADER_H*/
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