xref: /openbsd/usr.sbin/npppd/common/slist.h (revision d415bd75)
1 /*	$OpenBSD: slist.h,v 1.5 2015/12/17 08:01:55 tb Exp $ */
2 /*-
3  * Copyright (c) 2009 Internet Initiative Japan Inc.
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  */
27 #ifndef SLIST_H
28 #define SLIST_H 1
29 
30 typedef struct {
31 	void **list;
32 	int last_idx;
33 	int first_idx;
34 	int list_size;
35 
36 	int itr_next;
37 	int itr_curr;
38 } slist;
39 
40 #ifdef __cplusplus
41 extern "C" {
42 #endif
43 
44 void  slist_init (slist *);
45 void  slist_fini (slist *);
46 int   slist_length (slist *);
47 int   slist_set_size (slist *, int);
48 void  *slist_add (slist *, void *);
49 int   slist_add_all (slist *, slist *);
50 void  slist_remove_all (slist *);
51 void  *slist_get (slist *, int);
52 int   slist_set (slist *, int, void *);
53 void  *slist_remove_first (slist *);
54 void  *slist_remove_last (slist *);
55 void  slist_swap (slist *, int, int);
56 void  *slist_remove (slist *, int);
57 void  slist_shuffle (slist *);
58 void  slist_itr_first (slist *);
59 int   slist_itr_has_next (slist *);
60 void  *slist_itr_next (slist *);
61 void  *slist_itr_remove (slist *);
62 void  slist_qsort (slist *, int (*compar)(const void *, const void *));
63 
64 #ifdef __cplusplus
65 }
66 #endif
67 
68 #endif
69