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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_list_handles.c
* @brief GNUnet MESSENGER service
*/
#include "gnunet-service-messenger_list_handles.h"
#include "gnunet-service-messenger_handle.h"
void
init_list_handles (struct GNUNET_MESSENGER_ListHandles *handles)
{
GNUNET_assert(handles);
handles->head = NULL;
handles->tail = NULL;
}
void
clear_list_handles (struct GNUNET_MESSENGER_ListHandles *handles)
{
GNUNET_assert(handles);
while (handles->head)
{
struct GNUNET_MESSENGER_ListHandle *element = handles->head;
GNUNET_CONTAINER_DLL_remove(handles->head, handles->tail, element);
destroy_handle (element->handle);
GNUNET_free(element);
}
handles->head = NULL;
handles->tail = NULL;
}
void
add_list_handle (struct GNUNET_MESSENGER_ListHandles *handles,
struct GNUNET_MESSENGER_SrvHandle *handle)
{
GNUNET_assert((handles) && (handle));
struct GNUNET_MESSENGER_ListHandle *element = GNUNET_new(struct GNUNET_MESSENGER_ListHandle);
element->handle = handle;
GNUNET_CONTAINER_DLL_insert_tail(handles->head, handles->tail, element);
}
int
remove_list_handle (struct GNUNET_MESSENGER_ListHandles *handles,
struct GNUNET_MESSENGER_SrvHandle *handle)
{
GNUNET_assert((handles) && (handle));
struct GNUNET_MESSENGER_ListHandle *element;
for (element = handles->head; element; element = element->next)
if (element->handle == handle)
break;
if (!element)
return GNUNET_NO;
GNUNET_CONTAINER_DLL_remove(handles->head, handles->tail, element);
GNUNET_free(element);
return GNUNET_YES;
}
struct GNUNET_MESSENGER_SrvHandle*
find_list_handle_by_member (const struct GNUNET_MESSENGER_ListHandles *handles,
const struct GNUNET_HashCode *key)
{
GNUNET_assert((handles) && (key));
struct GNUNET_MESSENGER_ListHandle *element;
for (element = handles->head; element; element = element->next)
if (get_handle_member_id ((struct GNUNET_MESSENGER_SrvHandle*) element->handle, key))
return element->handle;
return NULL;
}
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