1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #ifndef	_INJ_LIST_H
28 #define	_INJ_LIST_H
29 
30 #ifdef	__cplusplus
31 extern "C" {
32 #endif
33 
34 /*
35  * Simple doubly-linked list implementation.  This implementation assumes that
36  * each element contains an embedded inj_list_t structure.  An additional
37  * inj_list_t is used to store the head and tail pointers.  The caller can
38  * use inj_list_prev() on the master list_t to obtain the tail element, or
39  * inj_list_next() to obtain the head element.  The head and tail list elements
40  * have their previous and next pointers set to NULL, respectively.
41  */
42 
43 typedef struct inj_list {
44 	struct inj_list *ml_prev;	/* Link to previous list element */
45 	struct inj_list *ml_next;	/* Link to next list element */
46 } inj_list_t;
47 
48 #define	inj_list_prev(elem)	((void *)(((inj_list_t *)(elem))->ml_prev))
49 #define	inj_list_next(elem)	((void *)(((inj_list_t *)(elem))->ml_next))
50 
51 extern void inj_list_append(inj_list_t *, void *);
52 extern void inj_list_prepend(inj_list_t *, void *);
53 
54 #ifdef	__cplusplus
55 }
56 #endif
57 
58 #endif	/* _INJ_LIST_H */
59