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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_message_state.h
23 * @brief GNUnet MESSENGER service
24 */
25
26#ifndef GNUNET_SERVICE_MESSENGER_MESSAGE_STATE_H
27#define GNUNET_SERVICE_MESSENGER_MESSAGE_STATE_H
28
29#include "platform.h"
30#include "gnunet_crypto_lib.h"
31
32#include "messenger_api_message.h"
33#include "gnunet-service-messenger_list_messages.h"
34
35struct GNUNET_MESSENGER_MessageState
36{
37 struct GNUNET_MESSENGER_ListMessages last_messages;
38};
39
40void
41init_message_state (struct GNUNET_MESSENGER_MessageState *state);
42
43void
44clear_message_state (struct GNUNET_MESSENGER_MessageState *state);
45
46void
47get_message_state_chain_hash (const struct GNUNET_MESSENGER_MessageState *state,
48 struct GNUNET_HashCode *hash);
49
50const struct GNUNET_HashCode*
51get_message_state_merge_hash (const struct GNUNET_MESSENGER_MessageState *state);
52
53void
54update_message_state (struct GNUNET_MESSENGER_MessageState *state, int requested,
55 const struct GNUNET_MESSENGER_Message *message, const struct GNUNET_HashCode *hash);
56
57void
58load_message_state (struct GNUNET_MESSENGER_MessageState *state, const char *path);
59
60void
61save_message_state (const struct GNUNET_MESSENGER_MessageState *state, const char *path);
62
63#endif //GNUNET_SERVICE_MESSENGER_MESSAGE_STATE_H