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92 lines
3.1 KiB
C
92 lines
3.1 KiB
C
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/* lt_dlloader.h -- dynamic library loader interface
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Copyright (C) 2004, 2007-2008, 2011-2015 Free Software Foundation,
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Inc.
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Written by Gary V. Vaughan, 2004
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NOTE: The canonical source of this file is maintained with the
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GNU Libtool package. Report bugs to bug-libtool@gnu.org.
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GNU Libltdl is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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As a special exception to the GNU Lesser General Public License,
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if you distribute this file as part of a program or library that
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is built using GNU Libtool, you may include this file under the
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same distribution terms that you use for the rest of that program.
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GNU Libltdl is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with GNU Libltdl; see the file COPYING.LIB. If not, a
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copy can be downloaded from http://www.gnu.org/licenses/lgpl.html,
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or obtained by writing to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#if !defined LT_DLLOADER_H
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#define LT_DLLOADER_H 1
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#include <libltdl/lt_system.h>
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LT_BEGIN_C_DECLS
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typedef void * lt_dlloader;
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typedef void * lt_module;
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typedef void * lt_user_data;
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typedef struct lt__advise * lt_dladvise;
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/* Function pointer types for module loader vtable entries: */
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typedef lt_module lt_module_open (lt_user_data data,
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const char *filename,
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lt_dladvise advise);
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typedef int lt_module_close (lt_user_data data,
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lt_module module);
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typedef void * lt_find_sym (lt_user_data data, lt_module module,
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const char *symbolname);
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typedef int lt_dlloader_init (lt_user_data data);
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typedef int lt_dlloader_exit (lt_user_data data);
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/* Default priority is LT_DLLOADER_PREPEND if none is explicitly given. */
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typedef enum {
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LT_DLLOADER_PREPEND = 0, LT_DLLOADER_APPEND
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} lt_dlloader_priority;
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/* This structure defines a module loader, as populated by the get_vtable
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entry point of each loader. */
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typedef struct {
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const char * name;
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const char * sym_prefix;
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lt_module_open * module_open;
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lt_module_close * module_close;
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lt_find_sym * find_sym;
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lt_dlloader_init * dlloader_init;
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lt_dlloader_exit * dlloader_exit;
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lt_user_data dlloader_data;
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lt_dlloader_priority priority;
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} lt_dlvtable;
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LT_SCOPE int lt_dlloader_add (const lt_dlvtable *vtable);
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LT_SCOPE lt_dlloader lt_dlloader_next (const lt_dlloader loader);
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LT_SCOPE lt_dlvtable * lt_dlloader_remove (const char *name);
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LT_SCOPE const lt_dlvtable *lt_dlloader_find (const char *name);
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LT_SCOPE const lt_dlvtable *lt_dlloader_get (lt_dlloader loader);
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/* Type of a function to get a loader's vtable: */
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typedef const lt_dlvtable *lt_get_vtable (lt_user_data data);
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#ifdef LT_DEBUG_LOADERS
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LT_SCOPE void lt_dlloader_dump (void);
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#endif
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LT_END_C_DECLS
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#endif /*!defined LT_DLLOADER_H*/
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