]>
Commit | Line | Data |
---|---|---|
bbc27441 AJ |
1 | /* |
2 | * Copyright (C) 1996-2014 The Squid Software Foundation and contributors | |
3 | * | |
4 | * Squid software is distributed under GPLv2+ license and includes | |
5 | * contributions from numerous individuals and organizations. | |
6 | * Please see the COPYING and CONTRIBUTORS files for details. | |
7 | */ | |
8 | ||
f7f3304a | 9 | #include "squid.h" |
e1f7507e AJ |
10 | #include "dlink.h" |
11 | ||
ed6e9fb9 AJ |
12 | /* dlink_node use explicit alloc()/freeOne() |
13 | * XXX: convert to MEMPROXY_CLASS() API | |
14 | */ | |
15 | #include "mem/Pool.h" | |
e1f7507e | 16 | |
e1f7507e AJ |
17 | dlink_list ClientActiveRequests; |
18 | ||
19 | MemAllocator *dlink_node_pool = NULL; | |
20 | ||
21 | dlink_node * | |
22 | dlinkNodeNew() | |
23 | { | |
24 | if (dlink_node_pool == NULL) | |
25 | dlink_node_pool = memPoolCreate("Dlink list nodes", sizeof(dlink_node)); | |
26 | ||
27 | /* where should we call delete dlink_node_pool;dlink_node_pool = NULL; */ | |
28 | return (dlink_node *)dlink_node_pool->alloc(); | |
29 | } | |
30 | ||
31 | /** The node needs to be unlinked FIRST */ | |
32 | void | |
33 | dlinkNodeDelete(dlink_node * m) | |
34 | { | |
35 | if (m == NULL) | |
36 | return; | |
37 | ||
dc47f531 | 38 | dlink_node_pool->freeOne(m); |
e1f7507e AJ |
39 | } |
40 | ||
41 | void | |
42 | dlinkAdd(void *data, dlink_node * m, dlink_list * list) | |
43 | { | |
44 | m->data = data; | |
45 | m->prev = NULL; | |
46 | m->next = list->head; | |
47 | ||
48 | if (list->head) | |
49 | list->head->prev = m; | |
50 | ||
51 | list->head = m; | |
52 | ||
53 | if (list->tail == NULL) | |
54 | list->tail = m; | |
55 | } | |
56 | ||
57 | void | |
58 | dlinkAddAfter(void *data, dlink_node * m, dlink_node * n, dlink_list * list) | |
59 | { | |
60 | m->data = data; | |
61 | m->prev = n; | |
62 | m->next = n->next; | |
63 | ||
64 | if (n->next) | |
65 | n->next->prev = m; | |
66 | else { | |
67 | assert(list->tail == n); | |
68 | list->tail = m; | |
69 | } | |
70 | ||
71 | n->next = m; | |
72 | } | |
73 | ||
74 | void | |
75 | dlinkAddTail(void *data, dlink_node * m, dlink_list * list) | |
76 | { | |
77 | m->data = data; | |
78 | m->next = NULL; | |
79 | m->prev = list->tail; | |
80 | ||
81 | if (list->tail) | |
82 | list->tail->next = m; | |
83 | ||
84 | list->tail = m; | |
85 | ||
86 | if (list->head == NULL) | |
87 | list->head = m; | |
88 | } | |
89 | ||
90 | void | |
91 | dlinkDelete(dlink_node * m, dlink_list * list) | |
92 | { | |
93 | if (m->next) | |
94 | m->next->prev = m->prev; | |
95 | ||
96 | if (m->prev) | |
97 | m->prev->next = m->next; | |
98 | ||
99 | if (m == list->head) | |
100 | list->head = m->next; | |
101 | ||
102 | if (m == list->tail) | |
103 | list->tail = m->prev; | |
104 | ||
105 | m->next = m->prev = NULL; | |
106 | } | |
f53969cc | 107 |