1#ifndef JEMALLOC_INTERNAL_QL_H
2#define JEMALLOC_INTERNAL_QL_H
3
4#include "jemalloc/internal/qr.h"
5
6/* List definitions. */
7#define ql_head(a_type) \
8struct { \
9 a_type *qlh_first; \
10}
11
12#define ql_head_initializer(a_head) {NULL}
13
14#define ql_elm(a_type) qr(a_type)
15
16/* List functions. */
17#define ql_new(a_head) do { \
18 (a_head)->qlh_first = NULL; \
19} while (0)
20
21#define ql_elm_new(a_elm, a_field) qr_new((a_elm), a_field)
22
23#define ql_first(a_head) ((a_head)->qlh_first)
24
25#define ql_last(a_head, a_field) \
26 ((ql_first(a_head) != NULL) \
27 ? qr_prev(ql_first(a_head), a_field) : NULL)
28
29#define ql_next(a_head, a_elm, a_field) \
30 ((ql_last(a_head, a_field) != (a_elm)) \
31 ? qr_next((a_elm), a_field) : NULL)
32
33#define ql_prev(a_head, a_elm, a_field) \
34 ((ql_first(a_head) != (a_elm)) ? qr_prev((a_elm), a_field) \
35 : NULL)
36
37#define ql_before_insert(a_head, a_qlelm, a_elm, a_field) do { \
38 qr_before_insert((a_qlelm), (a_elm), a_field); \
39 if (ql_first(a_head) == (a_qlelm)) { \
40 ql_first(a_head) = (a_elm); \
41 } \
42} while (0)
43
44#define ql_after_insert(a_qlelm, a_elm, a_field) \
45 qr_after_insert((a_qlelm), (a_elm), a_field)
46
47#define ql_head_insert(a_head, a_elm, a_field) do { \
48 if (ql_first(a_head) != NULL) { \
49 qr_before_insert(ql_first(a_head), (a_elm), a_field); \
50 } \
51 ql_first(a_head) = (a_elm); \
52} while (0)
53
54#define ql_tail_insert(a_head, a_elm, a_field) do { \
55 if (ql_first(a_head) != NULL) { \
56 qr_before_insert(ql_first(a_head), (a_elm), a_field); \
57 } \
58 ql_first(a_head) = qr_next((a_elm), a_field); \
59} while (0)
60
61#define ql_remove(a_head, a_elm, a_field) do { \
62 if (ql_first(a_head) == (a_elm)) { \
63 ql_first(a_head) = qr_next(ql_first(a_head), a_field); \
64 } \
65 if (ql_first(a_head) != (a_elm)) { \
66 qr_remove((a_elm), a_field); \
67 } else { \
68 ql_first(a_head) = NULL; \
69 } \
70} while (0)
71
72#define ql_head_remove(a_head, a_type, a_field) do { \
73 a_type *t = ql_first(a_head); \
74 ql_remove((a_head), t, a_field); \
75} while (0)
76
77#define ql_tail_remove(a_head, a_type, a_field) do { \
78 a_type *t = ql_last(a_head, a_field); \
79 ql_remove((a_head), t, a_field); \
80} while (0)
81
82#define ql_foreach(a_var, a_head, a_field) \
83 qr_foreach((a_var), ql_first(a_head), a_field)
84
85#define ql_reverse_foreach(a_var, a_head, a_field) \
86 qr_reverse_foreach((a_var), ql_first(a_head), a_field)
87
88#endif /* JEMALLOC_INTERNAL_QL_H */
89