1 /* 2 Minetest 3 Copyright (C) 2017 nerzhul, Loic Blot <loic.blot@unix-experience.fr> 4 5 This program is free software; you can redistribute it and/or modify 6 it under the terms of the GNU Lesser General Public License as published by 7 the Free Software Foundation; either version 2.1 of the License, or 8 (at your option) any later version. 9 10 This program is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 GNU Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public License along 16 with this program; if not, write to the Free Software Foundation, Inc., 17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 18 */ 19 20 #pragma once 21 22 #include <unordered_map> 23 #include <string> 24 #include <vector> 25 #include <memory> 26 #include "network/networkprotocol.h" 27 #include "irrlichttypes.h" 28 29 enum ModChannelState : u8 30 { 31 MODCHANNEL_STATE_INIT, 32 MODCHANNEL_STATE_READ_WRITE, 33 MODCHANNEL_STATE_READ_ONLY, 34 MODCHANNEL_STATE_MAX, 35 }; 36 37 class ModChannel 38 { 39 public: ModChannel(const std::string & name)40 ModChannel(const std::string &name) : m_name(name) {} 41 ~ModChannel() = default; 42 getName()43 const std::string &getName() const { return m_name; } 44 bool registerConsumer(session_t peer_id); 45 bool removeConsumer(session_t peer_id); getChannelPeers()46 const std::vector<u16> &getChannelPeers() const { return m_client_consumers; } 47 bool canWrite() const; 48 void setState(ModChannelState state); 49 50 private: 51 std::string m_name; 52 ModChannelState m_state = MODCHANNEL_STATE_INIT; 53 std::vector<u16> m_client_consumers; 54 }; 55 56 enum ModChannelSignal : u8 57 { 58 MODCHANNEL_SIGNAL_JOIN_OK, 59 MODCHANNEL_SIGNAL_JOIN_FAILURE, 60 MODCHANNEL_SIGNAL_LEAVE_OK, 61 MODCHANNEL_SIGNAL_LEAVE_FAILURE, 62 MODCHANNEL_SIGNAL_CHANNEL_NOT_REGISTERED, 63 MODCHANNEL_SIGNAL_SET_STATE, 64 }; 65 66 class ModChannelMgr 67 { 68 public: 69 ModChannelMgr() = default; 70 ~ModChannelMgr() = default; 71 72 void registerChannel(const std::string &channel); 73 bool setChannelState(const std::string &channel, ModChannelState state); 74 bool joinChannel(const std::string &channel, session_t peer_id); 75 bool leaveChannel(const std::string &channel, session_t peer_id); 76 bool channelRegistered(const std::string &channel) const; 77 ModChannel *getModChannel(const std::string &channel); 78 /** 79 * This function check if a local mod can write on the channel 80 * 81 * @param channel 82 * @return true if write is allowed 83 */ 84 bool canWriteOnChannel(const std::string &channel) const; 85 void leaveAllChannels(session_t peer_id); 86 const std::vector<u16> &getChannelPeers(const std::string &channel) const; 87 88 private: 89 bool removeChannel(const std::string &channel); 90 91 std::unordered_map<std::string, std::unique_ptr<ModChannel>> 92 m_registered_channels; 93 }; 94