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Commit | Line | Data |
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7453a54e SL |
1 | /* |
2 | * List definitions. | |
3 | */ | |
1a4d82fc | 4 | #define ql_head(a_type) \ |
970d7e83 LB |
5 | struct { \ |
6 | a_type *qlh_first; \ | |
7 | } | |
8 | ||
1a4d82fc | 9 | #define ql_head_initializer(a_head) {NULL} |
970d7e83 | 10 | |
1a4d82fc | 11 | #define ql_elm(a_type) qr(a_type) |
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12 | |
13 | /* List functions. */ | |
1a4d82fc | 14 | #define ql_new(a_head) do { \ |
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15 | (a_head)->qlh_first = NULL; \ |
16 | } while (0) | |
17 | ||
1a4d82fc | 18 | #define ql_elm_new(a_elm, a_field) qr_new((a_elm), a_field) |
970d7e83 | 19 | |
1a4d82fc | 20 | #define ql_first(a_head) ((a_head)->qlh_first) |
970d7e83 | 21 | |
1a4d82fc | 22 | #define ql_last(a_head, a_field) \ |
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23 | ((ql_first(a_head) != NULL) \ |
24 | ? qr_prev(ql_first(a_head), a_field) : NULL) | |
25 | ||
1a4d82fc | 26 | #define ql_next(a_head, a_elm, a_field) \ |
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27 | ((ql_last(a_head, a_field) != (a_elm)) \ |
28 | ? qr_next((a_elm), a_field) : NULL) | |
29 | ||
1a4d82fc | 30 | #define ql_prev(a_head, a_elm, a_field) \ |
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31 | ((ql_first(a_head) != (a_elm)) ? qr_prev((a_elm), a_field) \ |
32 | : NULL) | |
33 | ||
1a4d82fc | 34 | #define ql_before_insert(a_head, a_qlelm, a_elm, a_field) do { \ |
970d7e83 LB |
35 | qr_before_insert((a_qlelm), (a_elm), a_field); \ |
36 | if (ql_first(a_head) == (a_qlelm)) { \ | |
37 | ql_first(a_head) = (a_elm); \ | |
38 | } \ | |
39 | } while (0) | |
40 | ||
1a4d82fc | 41 | #define ql_after_insert(a_qlelm, a_elm, a_field) \ |
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42 | qr_after_insert((a_qlelm), (a_elm), a_field) |
43 | ||
1a4d82fc | 44 | #define ql_head_insert(a_head, a_elm, a_field) do { \ |
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45 | if (ql_first(a_head) != NULL) { \ |
46 | qr_before_insert(ql_first(a_head), (a_elm), a_field); \ | |
47 | } \ | |
48 | ql_first(a_head) = (a_elm); \ | |
49 | } while (0) | |
50 | ||
1a4d82fc | 51 | #define ql_tail_insert(a_head, a_elm, a_field) do { \ |
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52 | if (ql_first(a_head) != NULL) { \ |
53 | qr_before_insert(ql_first(a_head), (a_elm), a_field); \ | |
54 | } \ | |
55 | ql_first(a_head) = qr_next((a_elm), a_field); \ | |
56 | } while (0) | |
57 | ||
1a4d82fc | 58 | #define ql_remove(a_head, a_elm, a_field) do { \ |
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59 | if (ql_first(a_head) == (a_elm)) { \ |
60 | ql_first(a_head) = qr_next(ql_first(a_head), a_field); \ | |
61 | } \ | |
62 | if (ql_first(a_head) != (a_elm)) { \ | |
63 | qr_remove((a_elm), a_field); \ | |
64 | } else { \ | |
65 | ql_first(a_head) = NULL; \ | |
66 | } \ | |
67 | } while (0) | |
68 | ||
1a4d82fc | 69 | #define ql_head_remove(a_head, a_type, a_field) do { \ |
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70 | a_type *t = ql_first(a_head); \ |
71 | ql_remove((a_head), t, a_field); \ | |
72 | } while (0) | |
73 | ||
1a4d82fc | 74 | #define ql_tail_remove(a_head, a_type, a_field) do { \ |
970d7e83 LB |
75 | a_type *t = ql_last(a_head, a_field); \ |
76 | ql_remove((a_head), t, a_field); \ | |
77 | } while (0) | |
78 | ||
1a4d82fc | 79 | #define ql_foreach(a_var, a_head, a_field) \ |
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80 | qr_foreach((a_var), ql_first(a_head), a_field) |
81 | ||
1a4d82fc | 82 | #define ql_reverse_foreach(a_var, a_head, a_field) \ |
970d7e83 | 83 | qr_reverse_foreach((a_var), ql_first(a_head), a_field) |