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1 | /* |
1 | /* |
2 | * Copyright (C) 2001-2004 Jakub Jermar |
2 | * Copyright (C) 2001-2004 Jakub Jermar |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | #ifndef __LIST_H__ |
29 | #ifndef __LIST_H__ |
30 | #define __LIST_H__ |
30 | #define __LIST_H__ |
31 | 31 | ||
32 | #include <arch/types.h> |
32 | #include <arch/types.h> |
33 | #include <typedefs.h> |
33 | #include <typedefs.h> |
34 | 34 | ||
35 | struct link { |
35 | struct link { |
36 | link_t *prev; |
36 | link_t *prev; |
37 | link_t *next; |
37 | link_t *next; |
38 | }; |
38 | }; |
39 | 39 | ||
40 | 40 | ||
41 | #define link_initialize(link) { \ |
41 | #define link_initialize(link) { \ |
42 | (link)->prev = NULL; \ |
42 | (link)->prev = NULL; \ |
43 | (link)->next = NULL; \ |
43 | (link)->next = NULL; \ |
44 | } |
44 | } |
45 | 45 | ||
46 | #define list_initialize(head) { \ |
46 | #define list_initialize(head) { \ |
47 | (head)->prev = (head); \ |
47 | (head)->prev = (head); \ |
48 | (head)->next = (head); \ |
48 | (head)->next = (head); \ |
49 | } |
49 | } |
50 | 50 | ||
51 | #define list_prepend(link, head) { \ |
51 | #define list_prepend(link, head) { \ |
52 | (link)->next = (head)->next; \ |
52 | (link)->next = (head)->next; \ |
53 | (link)->prev = (head); \ |
53 | (link)->prev = (head); \ |
54 | (head)->next->prev = (link); \ |
54 | (head)->next->prev = (link); \ |
55 | (head)->next = (link); \ |
55 | (head)->next = (link); \ |
56 | } |
56 | } |
57 | 57 | ||
58 | #define list_append(link, head) { \ |
58 | #define list_append(link, head) { \ |
59 | (link)->prev = (head)->prev; \ |
59 | (link)->prev = (head)->prev; \ |
60 | (link)->next = (head); \ |
60 | (link)->next = (head); \ |
61 | (head)->prev->next = (link); \ |
61 | (head)->prev->next = (link); \ |
62 | (head)->prev = (link); \ |
62 | (head)->prev = (link); \ |
63 | } |
63 | } |
64 | 64 | ||
65 | #define list_remove(link) { \ |
65 | #define list_remove(link) { \ |
66 | (link)->next->prev = (link)->prev; \ |
66 | (link)->next->prev = (link)->prev; \ |
67 | (link)->prev->next = (link)->next; \ |
67 | (link)->prev->next = (link)->next; \ |
68 | link_initialize(link); \ |
68 | link_initialize(link); \ |
69 | } |
69 | } |
70 | 70 | ||
71 | #define list_empty(head) (((head)->next == (head))?1:0) |
71 | #define list_empty(head) (((head)->next == (head))?1:0) |
72 | 72 | ||
73 | #define list_get_instance(link,type,member) (type *)(((__u8*)(link))-((__u8*)&(((type *)NULL)->member))) |
73 | #define list_get_instance(link,type,member) (type *)(((__u8*)(link))-((__u8*)&(((type *)NULL)->member))) |
74 | 74 | ||
75 | extern int list_member(link_t *link, link_t *head); |
75 | extern bool list_member(const link_t *link, const link_t *head); |
76 | extern void list_concat(link_t *head1, link_t *head2); |
76 | extern void list_concat(link_t *head1, link_t *head2); |
77 | 77 | ||
78 | #endif |
78 | #endif |
79 | 79 |