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/*
This file is part of GNUnet.
Copyright (C) 2024 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_message_control.h
* @brief messenger api: client and service implementation of GNUnet MESSENGER service
*/
#ifndef GNUNET_MESSENGER_API_MESSAGE_CONTROL_H
#define GNUNET_MESSENGER_API_MESSAGE_CONTROL_H
#include "gnunet_common.h"
#include "gnunet_messenger_service.h"
#include "gnunet_util_lib.h"
struct GNUNET_MESSENGER_Message;
struct GNUNET_MESSENGER_MessageControl;
struct GNUNET_MESSENGER_MessageControlQueue
{
struct GNUNET_MESSENGER_MessageControl *control;
struct GNUNET_HashCode sender;
struct GNUNET_HashCode context;
struct GNUNET_HashCode hash;
struct GNUNET_MESSENGER_Message *message;
enum GNUNET_MESSENGER_MessageFlags flags;
struct GNUNET_SCHEDULER_Task *task;
struct GNUNET_MESSENGER_MessageControlQueue *prev;
struct GNUNET_MESSENGER_MessageControlQueue *next;
};
struct GNUNET_MESSENGER_Room;
struct GNUNET_MESSENGER_MessageControl
{
struct GNUNET_MESSENGER_Room *room;
struct GNUNET_CONTAINER_MultiShortmap *peer_messages;
struct GNUNET_CONTAINER_MultiShortmap *member_messages;
struct GNUNET_MESSENGER_MessageControlQueue *head;
struct GNUNET_MESSENGER_MessageControlQueue *tail;
};
/**
* Creates and allocates a new message control for a <i>room</i> of the client API.
*
* @param[in,out] room Room
* @return New message control
*/
struct GNUNET_MESSENGER_MessageControl*
create_message_control (struct GNUNET_MESSENGER_Room *room);
/**
* Destroys a message control and frees its memory fully from the client API.
*
* @param[in,out] control Message control
*/
void
destroy_message_control (struct GNUNET_MESSENGER_MessageControl *control);
/**
* Processes a new <i>message</i> with its <i>hash</i> and regarding information about
* <i>sender</i>, <i>context</i> and message <i>flags</i> using a selected message
* <i>control</i>.
*
* The message control will ensure order of messages so that senders of messages
* can be identified via previously processed messages.
*
* @param[in,out] control Message control
* @param[in] sender Sender hash
* @param[in] context Context hash
* @param[in] hash Message hash
* @param[in] message Message
* @param[in] flags Message flags
*/
void
process_message_control (struct GNUNET_MESSENGER_MessageControl *control,
const struct GNUNET_HashCode *sender,
const struct GNUNET_HashCode *context,
const struct GNUNET_HashCode *hash,
const struct GNUNET_MESSENGER_Message *message,
enum GNUNET_MESSENGER_MessageFlags flags);
#endif //GNUNET_MESSENGER_API_MESSAGE_CONTROL_H
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