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Annotation of gforth/libltdl/libltdl/lt_dlloader.h, revision 1.1

1.1     ! anton       1: /* lt_dlloader.h -- dynamic library loader interface
        !             2: 
        !             3:    Copyright (C) 2004, 2007 Free Software Foundation, Inc.
        !             4:    Written by Gary V. Vaughan, 2004
        !             5: 
        !             6:    NOTE: The canonical source of this file is maintained with the
        !             7:    GNU Libtool package.  Report bugs to bug-libtool@gnu.org.
        !             8: 
        !             9: GNU Libltdl is free software; you can redistribute it and/or
        !            10: modify it under the terms of the GNU Lesser General Public
        !            11: License as published by the Free Software Foundation; either
        !            12: version 2 of the License, or (at your option) any later version.
        !            13: 
        !            14: As a special exception to the GNU Lesser General Public License,
        !            15: if you distribute this file as part of a program or library that
        !            16: is built using GNU Libtool, you may include this file under the
        !            17: same distribution terms that you use for the rest of that program.
        !            18: 
        !            19: GNU Libltdl is distributed in the hope that it will be useful,
        !            20: but WITHOUT ANY WARRANTY; without even the implied warranty of
        !            21: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        !            22: GNU Lesser General Public License for more details.
        !            23: 
        !            24: You should have received a copy of the GNU Lesser General Public
        !            25: License along with GNU Libltdl; see the file COPYING.LIB.  If not, a
        !            26: copy can be downloaded from  http://www.gnu.org/licenses/lgpl.html,
        !            27: or obtained by writing to the Free Software Foundation, Inc.,
        !            28: 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
        !            29: */
        !            30: 
        !            31: #if !defined(LT_DLLOADER_H)
        !            32: #define LT_DLLOADER_H 1
        !            33: 
        !            34: #include <libltdl/lt_system.h>
        !            35: 
        !            36: LT_BEGIN_C_DECLS
        !            37: 
        !            38: typedef        void *  lt_dlloader;
        !            39: typedef void * lt_module;
        !            40: typedef void * lt_user_data;
        !            41: typedef void * lt_dladvise;
        !            42: 
        !            43: /* Function pointer types for module loader vtable entries:  */
        !            44: typedef lt_module   lt_module_open     (lt_user_data data,
        !            45:                                         const char *filename,
        !            46:                                         lt_dladvise advise);
        !            47: typedef int        lt_module_close     (lt_user_data data,
        !            48:                                         lt_module module);
        !            49: typedef void *     lt_find_sym         (lt_user_data data, lt_module module,
        !            50:                                         const char *symbolname);
        !            51: typedef int        lt_dlloader_init    (lt_user_data data);
        !            52: typedef int        lt_dlloader_exit    (lt_user_data data);
        !            53: 
        !            54: /* Default priority is LT_DLLOADER_PREPEND if none is explicitly given.  */
        !            55: typedef enum {
        !            56:   LT_DLLOADER_PREPEND = 0, LT_DLLOADER_APPEND
        !            57: } lt_dlloader_priority;
        !            58: 
        !            59: /* This structure defines a module loader, as populated by the get_vtable
        !            60:    entry point of each loader.  */
        !            61: typedef struct {
        !            62:   const char *         name;
        !            63:   const char *         sym_prefix;
        !            64:   lt_module_open *     module_open;
        !            65:   lt_module_close *    module_close;
        !            66:   lt_find_sym *                find_sym;
        !            67:   lt_dlloader_init *   dlloader_init;
        !            68:   lt_dlloader_exit *   dlloader_exit;
        !            69:   lt_user_data         dlloader_data;
        !            70:   lt_dlloader_priority priority;
        !            71: } lt_dlvtable;
        !            72: 
        !            73: LT_SCOPE int           lt_dlloader_add    (const lt_dlvtable *vtable);
        !            74: LT_SCOPE lt_dlloader   lt_dlloader_next   (const lt_dlloader loader);
        !            75: 
        !            76: LT_SCOPE lt_dlvtable * lt_dlloader_remove      (char *name);
        !            77: LT_SCOPE const lt_dlvtable *lt_dlloader_find   (char *name);
        !            78: LT_SCOPE const lt_dlvtable *lt_dlloader_get    (lt_dlloader loader);
        !            79: 
        !            80: 
        !            81: /* Type of a function to get a loader's vtable:  */
        !            82: typedef  const lt_dlvtable *lt_get_vtable      (lt_user_data data);
        !            83: 
        !            84: #ifdef LT_DEBUG_LOADERS
        !            85: LT_SCOPE void          lt_dlloader_dump        (void);
        !            86: #endif
        !            87: 
        !            88: LT_END_C_DECLS
        !            89: 
        !            90: #endif /*!defined(LT_DLLOADER_H)*/