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1 /* -*- mode: C; c-file-style: "gnu" -*- */
2 /* dbus-list.h Generic linked list utility (internal to D-Bus implementation)
3  *
4  * Copyright (C) 2002, 2003 Red Hat, Inc.
5  *
6  * Licensed under the Academic Free License version 2.1
7  *
8  * This program is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License as published by
10  * the Free Software Foundation; either version 2 of the License, or
11  * (at your option) any later version.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with this program; if not, write to the Free Software
20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
21  *
22  */
23 
24 #ifndef DBUS_LIST_H
25 #define DBUS_LIST_H
26 
27 #include <dbus/dbus-internals.h>
28 #include <dbus/dbus-memory.h>
29 #include <dbus/dbus-types.h>
30 #include <dbus/dbus-sysdeps.h>
31 
32 DBUS_BEGIN_DECLS
33 
34 struct DBusList
35 {
36   DBusList *prev; /**< Previous list node. */
37   DBusList *next; /**< Next list node. */
38   void     *data; /**< Data stored at this element. */
39 };
40 dbus_bool_t _dbus_list_append             (DBusList **list,
41                                            void      *data);
42 dbus_bool_t _dbus_list_prepend            (DBusList **list,
43                                            void      *data);
44 dbus_bool_t _dbus_list_insert_before      (DBusList **list,
45                                            DBusList  *before_this_link,
46                                            void      *data);
47 dbus_bool_t _dbus_list_insert_after       (DBusList **list,
48                                            DBusList  *after_this_link,
49                                            void      *data);
50 void        _dbus_list_insert_before_link (DBusList **list,
51                                            DBusList  *before_this_link,
52                                            DBusList  *link);
53 void        _dbus_list_insert_after_link  (DBusList **list,
54                                            DBusList  *after_this_link,
55                                            DBusList  *link);
56 dbus_bool_t _dbus_list_remove             (DBusList **list,
57                                            void      *data);
58 dbus_bool_t _dbus_list_remove_last        (DBusList **list,
59                                            void      *data);
60 void        _dbus_list_remove_link        (DBusList **list,
61                                            DBusList  *link);
62 DBusList*   _dbus_list_find_last          (DBusList **list,
63                                            void      *data);
64 void        _dbus_list_clear              (DBusList **list);
65 DBusList*   _dbus_list_get_first_link     (DBusList **list);
66 DBusList*   _dbus_list_get_last_link      (DBusList **list);
67 void*       _dbus_list_get_last           (DBusList **list);
68 void*       _dbus_list_get_first          (DBusList **list);
69 void*       _dbus_list_pop_first          (DBusList **list);
70 void*       _dbus_list_pop_last           (DBusList **list);
71 DBusList*   _dbus_list_pop_first_link     (DBusList **list);
72 DBusList*   _dbus_list_pop_last_link      (DBusList **list);
73 dbus_bool_t _dbus_list_copy               (DBusList **list,
74                                            DBusList **dest);
75 int         _dbus_list_get_length         (DBusList **list);
76 DBusList*   _dbus_list_alloc_link         (void      *data);
77 void        _dbus_list_free_link          (DBusList  *link);
78 void        _dbus_list_unlink             (DBusList **list,
79                                            DBusList  *link);
80 void        _dbus_list_append_link        (DBusList **list,
81                                            DBusList  *link);
82 void        _dbus_list_prepend_link       (DBusList **list,
83                                            DBusList  *link);
84 dbus_bool_t _dbus_list_length_is_one      (DBusList **list);
85 
86 
87 
88 
89 void _dbus_list_foreach (DBusList            **list,
90                          DBusForeachFunction   function,
91                          void                 *data);
92 
93 #define _dbus_list_get_next_link(list, link) ((link)->next == *(list) ? NULL : (link)->next)
94 #define _dbus_list_get_prev_link(list, link) ((link) == *(list) ? NULL : (link)->prev)
95 
96 DBUS_END_DECLS
97 
98 #endif /* DBUS_LIST_H */
99