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diff --git a/src/messenger/gnunet-service-messenger_basement.c b/src/messenger/gnunet-service-messenger_basement.c
deleted file mode 100644
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--- a/src/messenger/gnunet-service-messenger_basement.c
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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_basement.c
23 * @brief GNUnet MESSENGER service
24 */
25
26#include "gnunet-service-messenger_basement.h"
27
28size_t
29count_of_tunnels (const struct GNUNET_MESSENGER_ListTunnels *tunnels)
30{
31 GNUNET_assert(tunnels);
32
33 const struct GNUNET_MESSENGER_ListTunnel *element;
34 size_t count = 0;
35
36 for (element = tunnels->head; element; element = element->next)
37 count++;
38
39 return count;
40}
41
42int
43should_connect_tunnel_to (size_t count, size_t src, size_t dst)
44{
45 if ((src + 1) % count == dst % count)
46 return GNUNET_YES;
47
48 return GNUNET_NO;
49}
50
51int
52required_connection_between (size_t count, size_t src, size_t dst)
53{
54 if (GNUNET_YES == should_connect_tunnel_to (count, src, dst))
55 return GNUNET_YES;
56 if (GNUNET_YES == should_connect_tunnel_to (count, dst, src))
57 return GNUNET_YES;
58
59 return GNUNET_NO;
60}