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-rw-r--r--src/messenger/gnunet-service-messenger_list_messages.h114
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diff --git a/src/messenger/gnunet-service-messenger_list_messages.h b/src/messenger/gnunet-service-messenger_list_messages.h
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1/*
2 This file is part of GNUnet.
3 Copyright (C) 2020--2021 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_messages.h
23 * @brief GNUnet MESSENGER service
24 */
25
26#ifndef GNUNET_SERVICE_MESSENGER_LIST_MESSAGES_H
27#define GNUNET_SERVICE_MESSENGER_LIST_MESSAGES_H
28
29#include "platform.h"
30#include "gnunet_crypto_lib.h"
31#include "gnunet_container_lib.h"
32#include "gnunet_disk_lib.h"
33
34struct GNUNET_MESSENGER_ListMessage
35{
36 struct GNUNET_MESSENGER_ListMessage *prev;
37 struct GNUNET_MESSENGER_ListMessage *next;
38
39 struct GNUNET_HashCode hash;
40};
41
42struct GNUNET_MESSENGER_ListMessages
43{
44 struct GNUNET_MESSENGER_ListMessage *head;
45 struct GNUNET_MESSENGER_ListMessage *tail;
46};
47
48/**
49 * Initializes list of message hashes as empty list.
50 *
51 * @param[out] messages List of hashes
52 */
53void
54init_list_messages (struct GNUNET_MESSENGER_ListMessages *messages);
55
56/**
57 * Clears the list of message hashes.
58 *
59 * @param[in/out] messages List of hashes
60 */
61void
62clear_list_messages (struct GNUNET_MESSENGER_ListMessages *messages);
63
64/**
65 * Adds a specific <i>hash</i> from a message to the end of the list.
66 *
67 * @param[in/out] messages List of hashes
68 * @param[in] hash Hash of message
69 */
70void
71add_to_list_messages (struct GNUNET_MESSENGER_ListMessages *messages,
72 const struct GNUNET_HashCode *hash);
73
74/**
75 * Copies all message hashes from an <i>origin</i> to another list.
76 *
77 * @param[in/out] messages Destination list of hashes
78 * @param[in] origin Source list of hashes
79 */
80void
81copy_list_messages (struct GNUNET_MESSENGER_ListMessages *messages,
82 const struct GNUNET_MESSENGER_ListMessages *origin);
83
84/**
85 * Removes the first entry with a matching <i>hash</i> from the list.
86 *
87 * @param[in/out] messages List of hashes
88 * @param[in] hash Hash of message
89 */
90void
91remove_from_list_messages (struct GNUNET_MESSENGER_ListMessages *messages,
92 const struct GNUNET_HashCode *hash);
93
94/**
95 * Loads the list of message hashes from a file under a given <i>path</i>.
96 *
97 * @param[out] messages List of hashes
98 * @param[in] path Path of file
99 */
100void
101load_list_messages (struct GNUNET_MESSENGER_ListMessages *messages,
102 const char *path);
103
104/**
105 * Saves the list of message hashes to a file under a given <i>path</i>.
106 *
107 * @param[in] messages List of hashes
108 * @param[in] path Path of file
109 */
110void
111save_list_messages (const struct GNUNET_MESSENGER_ListMessages *messages,
112 const char *path);
113
114#endif //GNUNET_SERVICE_MESSENGER_LIST_MESSAGES_H