1 #ifndef __LLIST_H
2 #define __LLIST_H
3 /***************************************************************************
4  *                                  _   _ ____  _
5  *  Project                     ___| | | |  _ \| |
6  *                             / __| | | | |_) | |
7  *                            | (__| |_| |  _ <| |___
8  *                             \___|\___/|_| \_\_____|
9  *
10  * Copyright (C) 1998 - 2008, Daniel Stenberg, <daniel@haxx.se>, et al.
11  *
12  * This software is licensed as described in the file COPYING, which
13  * you should have received as part of this distribution. The terms
14  * are also available at http://curl.haxx.se/docs/copyright.html.
15  *
16  * You may opt to use, copy, modify, merge, publish, distribute and/or sell
17  * copies of the Software, and permit persons to whom the Software is
18  * furnished to do so, under the terms of the COPYING file.
19  *
20  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
21  * KIND, either express or implied.
22  *
23  * $Id: llist.h,v 1.9 2008-01-16 12:24:00 bagder Exp $
24  ***************************************************************************/
25 
26 #include "setup.h"
27 #include <stddef.h>
28 
29 typedef void (*curl_llist_dtor)(void *, void *);
30 
31 struct curl_llist_element {
32   void *ptr;
33 
34   struct curl_llist_element *prev;
35   struct curl_llist_element *next;
36 };
37 
38 struct curl_llist {
39   struct curl_llist_element *head;
40   struct curl_llist_element *tail;
41 
42   curl_llist_dtor dtor;
43 
44   size_t size;
45 };
46 
47 void Curl_llist_init(struct curl_llist *, curl_llist_dtor);
48 struct curl_llist *Curl_llist_alloc(curl_llist_dtor);
49 int Curl_llist_insert_next(struct curl_llist *, struct curl_llist_element *,
50                            const void *);
51 int Curl_llist_insert_prev(struct curl_llist *, struct curl_llist_element *,
52                            const void *);
53 int Curl_llist_remove(struct curl_llist *, struct curl_llist_element *,
54                       void *);
55 int Curl_llist_remove_next(struct curl_llist *, struct curl_llist_element *,
56                            void *);
57 size_t Curl_llist_count(struct curl_llist *);
58 void Curl_llist_destroy(struct curl_llist *, void *);
59 int Curl_llist_move(struct curl_llist *, struct curl_llist_element *,
60                     struct curl_llist *, struct curl_llist_element *);
61 
62 #endif
63