/src/unbound/services/outbound_list.c
Line | Count | Source |
1 | | /* |
2 | | * services/outbound_list.c - keep list of outbound serviced queries. |
3 | | * |
4 | | * Copyright (c) 2007, NLnet Labs. All rights reserved. |
5 | | * |
6 | | * This software is open source. |
7 | | * |
8 | | * Redistribution and use in source and binary forms, with or without |
9 | | * modification, are permitted provided that the following conditions |
10 | | * are met: |
11 | | * |
12 | | * Redistributions of source code must retain the above copyright notice, |
13 | | * this list of conditions and the following disclaimer. |
14 | | * |
15 | | * Redistributions in binary form must reproduce the above copyright notice, |
16 | | * this list of conditions and the following disclaimer in the documentation |
17 | | * and/or other materials provided with the distribution. |
18 | | * |
19 | | * Neither the name of the NLNET LABS nor the names of its contributors may |
20 | | * be used to endorse or promote products derived from this software without |
21 | | * specific prior written permission. |
22 | | * |
23 | | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
24 | | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
25 | | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
26 | | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
27 | | * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
28 | | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED |
29 | | * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
30 | | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
31 | | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
32 | | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
33 | | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
34 | | */ |
35 | | |
36 | | /** |
37 | | * \file |
38 | | * |
39 | | * This file contains functions to help a module keep track of the |
40 | | * queries it has outstanding to authoritative servers. |
41 | | */ |
42 | | #include "config.h" |
43 | | #include <sys/time.h> |
44 | | #include "services/outbound_list.h" |
45 | | #include "services/outside_network.h" |
46 | | |
47 | | void |
48 | | outbound_list_init(struct outbound_list* list) |
49 | 0 | { |
50 | 0 | list->first = NULL; |
51 | 0 | } |
52 | | |
53 | | void |
54 | | outbound_list_clear(struct outbound_list* list) |
55 | 0 | { |
56 | 0 | struct outbound_entry *p, *np; |
57 | 0 | p = list->first; |
58 | 0 | while(p) { |
59 | 0 | np = p->next; |
60 | 0 | outnet_serviced_query_stop(p->qsent, p); |
61 | | /* in region, no free needed */ |
62 | 0 | p = np; |
63 | 0 | } |
64 | 0 | outbound_list_init(list); |
65 | 0 | } |
66 | | |
67 | | void |
68 | | outbound_list_insert(struct outbound_list* list, struct outbound_entry* e) |
69 | 0 | { |
70 | 0 | if(list->first) |
71 | 0 | list->first->prev = e; |
72 | 0 | e->next = list->first; |
73 | 0 | e->prev = NULL; |
74 | 0 | list->first = e; |
75 | 0 | } |
76 | | |
77 | | void |
78 | | outbound_list_remove(struct outbound_list* list, struct outbound_entry* e) |
79 | 0 | { |
80 | 0 | if(!e) |
81 | 0 | return; |
82 | 0 | outnet_serviced_query_stop(e->qsent, e); |
83 | 0 | if(e->next) |
84 | 0 | e->next->prev = e->prev; |
85 | 0 | if(e->prev) |
86 | 0 | e->prev->next = e->next; |
87 | 0 | else list->first = e->next; |
88 | | /* in region, no free needed */ |
89 | 0 | } |