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/*
This file is part of GNUnet.
Copyright (C) 2020 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/messenger_api_list_tunnels.c
* @brief messenger api: client and service implementation of GNUnet MESSENGER service
*/
#include "messenger_api_list_tunnels.h"
void
init_list_tunnels (struct GNUNET_MESSENGER_ListTunnels *tunnels)
{
GNUNET_assert(tunnels);
tunnels->head = NULL;
tunnels->tail = NULL;
}
void
clear_list_tunnels (struct GNUNET_MESSENGER_ListTunnels *tunnels)
{
GNUNET_assert(tunnels);
struct GNUNET_MESSENGER_ListTunnel *element;
for (element = tunnels->head; element; element = tunnels->head)
{
GNUNET_CONTAINER_DLL_remove(tunnels->head, tunnels->tail, element);
GNUNET_PEER_change_rc (element->peer, -1);
GNUNET_free(element);
}
tunnels->head = NULL;
tunnels->tail = NULL;
}
static int
compare_list_tunnels (void *cls, struct GNUNET_MESSENGER_ListTunnel *element0,
struct GNUNET_MESSENGER_ListTunnel *element1)
{
return ((int) element0->peer) - ((int) element1->peer);
}
void
add_to_list_tunnels (struct GNUNET_MESSENGER_ListTunnels *tunnels, const struct GNUNET_PeerIdentity *peer)
{
struct GNUNET_MESSENGER_ListTunnel *element = GNUNET_new(struct GNUNET_MESSENGER_ListTunnel);
element->peer = GNUNET_PEER_intern (peer);
GNUNET_CONTAINER_DLL_insert_sorted(struct GNUNET_MESSENGER_ListTunnel, compare_list_tunnels, NULL, tunnels->head,
tunnels->tail, element);
}
struct GNUNET_MESSENGER_ListTunnel*
find_list_tunnels (struct GNUNET_MESSENGER_ListTunnels *tunnels, const struct GNUNET_PeerIdentity *peer, size_t *index)
{
struct GNUNET_MESSENGER_ListTunnel *element;
struct GNUNET_PeerIdentity pid;
if (index)
*index = 0;
for (element = tunnels->head; element; element = element->next)
{
GNUNET_PEER_resolve (element->peer, &pid);
if (0 == GNUNET_memcmp(&pid, peer))
return element;
if (index)
(*index) = (*index) + 1;
}
return NULL;
}
int
contains_list_tunnels (struct GNUNET_MESSENGER_ListTunnels *tunnels, const struct GNUNET_PeerIdentity *peer)
{
return find_list_tunnels (tunnels, peer, NULL) != NULL ? GNUNET_YES : GNUNET_NO;
}
struct GNUNET_MESSENGER_ListTunnel*
remove_from_list_tunnels (struct GNUNET_MESSENGER_ListTunnels *tunnels, struct GNUNET_MESSENGER_ListTunnel *element)
{
struct GNUNET_MESSENGER_ListTunnel *next = element->next;
GNUNET_CONTAINER_DLL_remove(tunnels->head, tunnels->tail, element);
GNUNET_PEER_change_rc (element->peer, -1);
GNUNET_free(element);
return next;
}
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