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Diffstat (limited to 'src/messenger/gnunet-service-messenger_list_handles.c')
-rw-r--r--src/messenger/gnunet-service-messenger_list_handles.c95
1 files changed, 95 insertions, 0 deletions
diff --git a/src/messenger/gnunet-service-messenger_list_handles.c b/src/messenger/gnunet-service-messenger_list_handles.c
new file mode 100644
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+++ b/src/messenger/gnunet-service-messenger_list_handles.c
@@ -0,0 +1,95 @@
1/*
2 This file is part of GNUnet.
3 Copyright (C) 2020 GNUnet e.V.
4
5 GNUnet is free software: you can redistribute it and/or modify it
6 under the terms of the GNU Affero General Public License as published
7 by the Free Software Foundation, either version 3 of the License,
8 or (at your option) any later version.
9
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Affero General Public License for more details.
14
15 You should have received a copy of the GNU Affero General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
17
18 SPDX-License-Identifier: AGPL3.0-or-later
19 */
20/**
21 * @author Tobias Frisch
22 * @file src/messenger/gnunet-service-messenger_list_handles.c
23 * @brief GNUnet MESSENGER service
24 */
25
26#include "gnunet-service-messenger_list_handles.h"
27
28#include "gnunet-service-messenger_handle.h"
29
30void
31init_list_handles (struct GNUNET_MESSENGER_ListHandles *handles)
32{
33 GNUNET_assert(handles);
34
35 handles->head = NULL;
36 handles->tail = NULL;
37}
38
39void
40clear_list_handles (struct GNUNET_MESSENGER_ListHandles *handles)
41{
42 GNUNET_assert(handles);
43
44 while (handles->head)
45 {
46 struct GNUNET_MESSENGER_ListHandle *element = handles->head;
47
48 GNUNET_CONTAINER_DLL_remove(handles->head, handles->tail, element);
49 destroy_handle (element->handle);
50 GNUNET_free(element);
51 }
52
53 handles->head = NULL;
54 handles->tail = NULL;
55}
56
57void
58add_list_handle (struct GNUNET_MESSENGER_ListHandles *handles, void *handle)
59{
60 struct GNUNET_MESSENGER_ListHandle *element = GNUNET_new(struct GNUNET_MESSENGER_ListHandle);
61
62 element->handle = handle;
63
64 GNUNET_CONTAINER_DLL_insert_tail(handles->head, handles->tail, element);
65}
66
67int
68remove_list_handle (struct GNUNET_MESSENGER_ListHandles *handles, void *handle)
69{
70 struct GNUNET_MESSENGER_ListHandle *element;
71
72 for (element = handles->head; element; element = element->next)
73 if (element->handle == handle)
74 break;
75
76 if (!element)
77 return GNUNET_NO;
78
79 GNUNET_CONTAINER_DLL_remove(handles->head, handles->tail, element);
80 GNUNET_free(element);
81
82 return GNUNET_YES;
83}
84
85void*
86find_list_handle_by_member (struct GNUNET_MESSENGER_ListHandles *handles, const struct GNUNET_HashCode *key)
87{
88 struct GNUNET_MESSENGER_ListHandle *element;
89
90 for (element = handles->head; element; element = element->next)
91 if (get_handle_member_id ((struct GNUNET_MESSENGER_SrvHandle*) element->handle, key))
92 return element->handle;
93
94 return NULL;
95}