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/*
Minetest
Copyright (C) 2017 nerzhul, Loic Blot <loic.blot@unix-experience.fr>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#pragma once
#include <unordered_map>
#include <string>
#include <vector>
#include <memory>
#include "network/networkprotocol.h"
#include "irrlichttypes.h"
enum ModChannelState : u8
{
MODCHANNEL_STATE_INIT,
MODCHANNEL_STATE_READ_WRITE,
MODCHANNEL_STATE_READ_ONLY,
MODCHANNEL_STATE_MAX,
};
class ModChannel
{
public:
ModChannel(const std::string &name) : m_name(name) {}
~ModChannel() = default;
const std::string &getName() const { return m_name; }
bool registerConsumer(session_t peer_id);
bool removeConsumer(session_t peer_id);
const std::vector<u16> &getChannelPeers() const { return m_client_consumers; }
bool canWrite() const;
void setState(ModChannelState state);
private:
std::string m_name;
ModChannelState m_state = MODCHANNEL_STATE_INIT;
std::vector<u16> m_client_consumers;
};
enum ModChannelSignal : u8
{
MODCHANNEL_SIGNAL_JOIN_OK,
MODCHANNEL_SIGNAL_JOIN_FAILURE,
MODCHANNEL_SIGNAL_LEAVE_OK,
MODCHANNEL_SIGNAL_LEAVE_FAILURE,
MODCHANNEL_SIGNAL_CHANNEL_NOT_REGISTERED,
MODCHANNEL_SIGNAL_SET_STATE,
};
class ModChannelMgr
{
public:
ModChannelMgr() = default;
~ModChannelMgr() = default;
void registerChannel(const std::string &channel);
bool setChannelState(const std::string &channel, ModChannelState state);
bool joinChannel(const std::string &channel, session_t peer_id);
bool leaveChannel(const std::string &channel, session_t peer_id);
bool channelRegistered(const std::string &channel) const;
ModChannel *getModChannel(const std::string &channel);
/**
* This function check if a local mod can write on the channel
*
* @param channel
* @return true if write is allowed
*/
bool canWriteOnChannel(const std::string &channel) const;
void leaveAllChannels(session_t peer_id);
const std::vector<u16> &getChannelPeers(const std::string &channel) const;
private:
bool removeChannel(const std::string &channel);
std::unordered_map<std::string, std::unique_ptr<ModChannel>>
m_registered_channels;
};
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