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/*
This file is part of GNUnet.
Copyright (C) 2020--2021 GNUnet e.V.
GNUnet is free software: you can redistribute it and/or modify it
under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License,
or (at your option) any later version.
GNUnet is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
SPDX-License-Identifier: AGPL3.0-or-later
*/
/**
* @author Tobias Frisch
* @file src/messenger/gnunet-service-messenger_basement.c
* @brief GNUnet MESSENGER service
*/
#include "gnunet-service-messenger_basement.h"
size_t
count_of_tunnels (const struct GNUNET_MESSENGER_ListTunnels *tunnels)
{
GNUNET_assert(tunnels);
const struct GNUNET_MESSENGER_ListTunnel *element;
size_t count = 0;
for (element = tunnels->head; element; element = element->next)
count++;
return count;
}
int
should_connect_tunnel_to (size_t count,
size_t src,
size_t dst)
{
if ((src + 1) % count == dst % count)
return GNUNET_YES;
return GNUNET_NO;
}
int
required_connection_between (size_t count,
size_t src,
size_t dst)
{
if (GNUNET_YES == should_connect_tunnel_to (count, src, dst))
return GNUNET_YES;
if (GNUNET_YES == should_connect_tunnel_to (count, dst, src))
return GNUNET_YES;
return GNUNET_NO;
}
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