최종본

.vscode/settings.json

@@ -81,6 +81,11 @@
         "expected": "cpp",
         "complex": "cpp",
         "__config": "cpp",
-        "ranges": "cpp"
+        "ranges": "cpp",
+        "valarray": "cpp",
+        "__tree": "cpp",
+        "map": "cpp",
+        "iostream": "cpp",
+        "any": "cpp"
     }
 }

Client/CMakeLists.txt

@@ -33,6 +33,7 @@ FetchContent_MakeAvailable(JSONCPP)
 
 file(GLOB_RECURSE additional_sources CONFIGURE_DEPENDS
     "${CMAKE_CURRENT_SOURCE_DIR}/../impl/*.cpp"
+    "${CMAKE_CURRENT_SOURCE_DIR}/src/*.cpp"
 )
 
 add_executable(${PROJECT_NAME}

Client/include/ClientManager/ClientManager.hpp

@@ -0,0 +1,106 @@
+#pragma once
+#include "Utils/ThreadPool.hpp"
+#include "Utils/ConfigManager.hpp"
+#include "Socket/IOCP.hpp"
+#include "Packet/Packet.hpp"
+
+namespace Chattr {
+
+class ClientManager {
+public:
+    void _IOCPClient(ThreadPool* thread, IOCPPASSINDATA* data);
+
+    PacketSet packetParser(Packet Packet);
+
+	template<typename _Callable>
+	void init(_Callable _IOCPClient) {
+		auto config = ConfigManager::load();
+		log::setDefaultLogger(config.logLevel, config.logFileName, config.logfileSize, config.logfileCount);
+		threadPool_.init(0);
+		iocp_.init(&threadPool_, _IOCPClient);
+
+        struct Address serveraddr;
+        if (config.ipVersion == 4) {
+            sock_.init(AF_INET);
+            serveraddr.set(AF_INET, config.IP, config.Port);
+        }
+        else if (config.ipVersion == 6) {
+            sock_.init(AF_INET6);
+            serveraddr.set(AF_INET6, config.IP, config.Port);
+        }
+
+        if (sock_.connect(serveraddr) == INVALID_SOCKET) {
+            spdlog::error("{}", strerror(errno));
+            std::exit(EXIT_FAILURE);
+        }
+
+        data_ = new IOCPPASSINDATA;
+        ::memset(&data_->overlapped, 0, sizeof(OVERLAPPED));
+        data_->socket = std::make_shared<TCPSocket>(std::move(sock_));
+        data_->recvbytes = data_->sendbytes = 0;
+        data_->wsabuf.buf = data_->buf;
+        data_->wsabuf.len = 1500;
+        data_->IOCPInstance = &iocp_;
+        iocp_.registerSocket(data_);
+
+        spdlog::info("Connection established from [{}]", (std::string)serveraddr);
+	}
+
+    void init() {
+        init([this](ThreadPool* thread, IOCPPASSINDATA* data) {
+            this->_IOCPClient(thread, data);
+        });
+    }
+
+    void processResponsePacket(ResponsePacket responsePacket, IOCPPASSINDATA* data);
+    void processLoginResponsePacket(LoginResponsePacket loginResponsePacket, IOCPPASSINDATA* data);
+    void processRoomCreateResponsePacket(RoomCreateResponsePacket roomCreateResponsePacket, IOCPPASSINDATA* data);
+    void processRoomListResponse(RoomListResponsePacket roomListResponsePacket, IOCPPASSINDATA* data);
+    void processRoomJoinResponsePacket(RoomJoinResponsePacket roomJoinResponsePacket, IOCPPASSINDATA* data);
+    void processRoomExitResponsePacket(RoomExitResponsePacket roomExitResponsePacket, IOCPPASSINDATA* data);
+    void processUsersListResponsePacket(UsersListResponsePacket usersListResponsePacket, IOCPPASSINDATA* data);
+    void processDataPostPacket(DataPostPacket dataPostPacket, IOCPPASSINDATA* data);
+    void processContinuePacket(ContinuePacket continuePacket, IOCPPASSINDATA* data);
+
+    void sendMessage(Snowflake ID, std::string message);
+
+    void registerUser(std::string userName);
+    void deleteUser(Snowflake UID);
+    void getUserList();
+
+    void createRoom(std::string roomName);
+    void getRoomList();
+
+    void joinRoom(Snowflake UID, Snowflake RID);
+    void exitRoom(Snowflake UID, Snowflake RID);
+
+	void run();
+private:
+	ThreadPool threadPool_;
+	IOCP iocp_;
+
+    Snowflake myID_;
+    Snowflake myRoomID_;
+
+    IOCPPASSINDATA* data_;
+
+    bool inRoom_ = false;
+
+    std::future<ResponsePacket> lastResponsePacket_;
+
+    TCPSocket sock_;
+
+    std::mutex resourceMutex_;
+    std::mutex screenMutex_;
+
+    std::queue<std::string> messageQueue_;
+    std::vector<std::string> messageHistory_;
+
+    std::unordered_map<Snowflake, std::string> roomNames_;
+    std::unordered_map<std::string, Snowflake> findRoomId_;
+
+    std::unordered_map<Snowflake, std::string> userNames_;
+    std::unordered_map<std::string, Snowflake> findUserId_;
+};
+
+}

Client/src/ClientManager/ClientManager.cpp

@@ -0,0 +1,490 @@
+#include "ClientManager/ClientManager.hpp"
+#include "Utils/ConfigManager.hpp"
+#include "Utils/StringTokenizer.hpp"
+#include "Socket/Log.hpp"
+#include <iostream>
+
+namespace Chattr {
+
+void ClientManager::_IOCPClient(Chattr::ThreadPool* thread, Chattr::IOCPPASSINDATA* data) {
+    if (data->event == IOCPEVENT::QUIT) {
+        delete data;
+        return;
+    }
+
+    Chattr::Packet pack;
+    int packetSize = data->transferredbytes;
+
+    if (data->event == IOCPEVENT::WRITE && data->transferredbytes >= data->wsabuf.len) {
+        data->event = IOCPEVENT::READ;
+        data->wsabuf.len = 1500;
+        data->IOCPInstance->recv(data, 1);
+        return;
+    }
+
+    memcpy(pack.serialized, data->wsabuf.buf, data->wsabuf.len);
+
+    std::uint16_t packetLength = ::ntohs(pack.__data.packetLength);
+
+    // if (data->event == IOCPEVENT::READ && data->transferredbytes < packetLength + 8) {
+    //     data->IOCPInstance->recv(data, 1);
+    //     data->wsabuf.len = 1500;
+    //     return;
+    // }
+
+    pack.convToH();
+    PacketSet packetSet = packetParser(pack);
+    pack.convToN();
+    switch (packetSet) {
+    case PacketSet::LOGINRESPONSE: {
+            LoginResponsePacket loginResponsePacket;
+            std::memcpy(&loginResponsePacket.serialized, &pack.serialized, 8 + packetLength);
+            loginResponsePacket.convToH();
+
+            lastResponsePacket_ = std::future<ResponsePacket>();
+            auto promise = std::promise<ResponsePacket>();
+            lastResponsePacket_ = promise.get_future();
+            promise.set_value(loginResponsePacket);
+
+            processLoginResponsePacket(loginResponsePacket, data);
+        }
+        break;
+    case PacketSet::ROOMCREATERESPONSE:
+    case PacketSet::ROOMLISTRESPONSE: {
+            RoomListResponsePacket roomListResponsePacket;
+            std::memcpy(&roomListResponsePacket.serialized, &pack.serialized, 8 + packetLength);
+            roomListResponsePacket.convToH();
+
+            lastResponsePacket_ = std::future<ResponsePacket>();
+            auto promise = std::promise<ResponsePacket>();
+            lastResponsePacket_ = promise.get_future();
+            promise.set_value(roomListResponsePacket);
+            processRoomListResponse(roomListResponsePacket, data);
+        }
+        break;
+    case PacketSet::ROOMJOINRESPONSE:
+    case PacketSet::ROOMEXITRESPONSE:
+    case PacketSet::USERSLISTRESPONSE: {
+            UsersListResponsePacket usersListResponsePacket;
+            std::memcpy(&usersListResponsePacket.serialized, &pack.serialized, 8 + packetLength);
+            usersListResponsePacket.convToH();
+
+            lastResponsePacket_ = std::future<ResponsePacket>();
+            auto promise = std::promise<ResponsePacket>();
+            lastResponsePacket_ = promise.get_future();
+            promise.set_value(usersListResponsePacket);
+            processUsersListResponsePacket(usersListResponsePacket, data);
+    }
+    case PacketSet::RESPONSE: {
+            ResponsePacket responsePacket;
+            std::memcpy(&responsePacket.serialized, &pack.serialized, 8 + packetLength);
+            responsePacket.convToH();
+            
+            lastResponsePacket_ = std::future<ResponsePacket>();
+            auto promise = std::promise<ResponsePacket>();
+            lastResponsePacket_ = promise.get_future();
+            promise.set_value(responsePacket);
+
+            processResponsePacket(responsePacket, data);
+        }
+        break;
+    case PacketSet::DATAPOST: {
+            DataPostPacket dataPostPacket;
+            std::memcpy(&dataPostPacket.serialized, &pack.serialized, 8 + packetLength);
+            dataPostPacket.convToH();
+            processDataPostPacket(dataPostPacket, data);
+        }
+        break;
+    case PacketSet::CONTINUE: {
+            ContinuePacket continuePacket;
+            std::memcpy(&continuePacket.serialized, &pack.serialized, 8 + packetLength);
+            continuePacket.convToH();
+            processContinuePacket(continuePacket, data);
+        }
+        break;
+    case PacketSet::INVALID:
+    default: {
+        }
+        break;
+    }
+
+    iocp_.recv(data_, 1);
+}
+
+PacketSet ClientManager::packetParser(Packet Packet) {
+    if (Packet.__data.packetLength < 0 || Packet.__data.packetLength > 1492)
+        return PacketSet::INVALID;
+
+    switch (Packet.__data.packetType) {
+    case PacketCategory::PACKET_POST:
+        if (Packet.__data.requestType != RequestType::DATA) {
+            return PacketSet::INVALID;
+        }
+        switch (Packet.__data.dataType) {
+        case DataType::TEXT:
+        case DataType::BINARY:
+            return PacketSet::DATAPOST;
+        default:
+            return PacketSet::INVALID;
+        }
+        break;
+    case PacketCategory::PACKET_REQUEST:
+        switch (Packet.__data.requestType) {
+        case RequestType::LOGIN:
+            return PacketSet::LOGINREQUEST;
+        case RequestType::ROOM_CREATE:
+            return PacketSet::ROOMCREATEREQUEST;
+        case RequestType::ROOM_LIST:
+            return PacketSet::ROOMLISTREQUEST;
+        case RequestType::ROOM_JOIN:
+            return PacketSet::ROOMJOINREQUEST;
+        case RequestType::ROOM_EXIT:
+            return PacketSet::ROOMEXITREQUEST;
+        case RequestType::USERS_LIST:
+            return PacketSet::USERSLISTREQUEST;
+        case RequestType::ROOM_USERS_LIST:
+            return PacketSet::ROOMUSERSLISTREQUEST;
+        case RequestType::DATA:
+            return PacketSet::INVALID;
+        }
+        break;
+    case PacketCategory::PACKET_RESPONSE:
+        switch (Packet.__data.requestType) {
+        case RequestType::LOGIN:
+            return PacketSet::LOGINRESPONSE;
+        case RequestType::ROOM_CREATE:
+            return PacketSet::ROOMCREATERESPONSE;
+        case RequestType::ROOM_LIST:
+            return PacketSet::ROOMLISTRESPONSE;
+        case RequestType::ROOM_JOIN:
+            return PacketSet::ROOMJOINRESPONSE;
+        case RequestType::ROOM_EXIT:
+            return PacketSet::ROOMEXITRESPONSE;
+        case RequestType::USERS_LIST:
+            return PacketSet::USERSLISTRESPONSE;
+        case RequestType::ROOM_USERS_LIST:
+            return PacketSet::ROOMUSERSLISTRESPONSE;
+        case RequestType::DATA:
+            return PacketSet::RESPONSE;
+        default:
+            return PacketSet::INVALID;
+        }
+        break;
+    case PacketCategory::PACKET_CONTINUE:
+        return PacketSet::CONTINUE;
+    default:
+        return PacketSet::INVALID;
+    }
+
+    return PacketSet::INVALID;
+}
+
+void ClientManager::processResponsePacket(ResponsePacket responsePacket, IOCPPASSINDATA* data) {
+    responsePacket;
+}
+
+
+void ClientManager::processLoginResponsePacket(LoginResponsePacket loginResponsePacket, IOCPPASSINDATA* data) {
+    ::memcpy(&myID_.snowflake, loginResponsePacket.__data.yourId, sizeof(Snowflake));
+}
+
+void ClientManager::processRoomCreateResponsePacket(RoomCreateResponsePacket roomCreateResponsePacket, Chattr::IOCPPASSINDATA* data) {
+}
+
+void ClientManager::processRoomListResponse(RoomListResponsePacket roomListResponsePacket, Chattr::IOCPPASSINDATA* data) {
+    Snowflake roomId;
+    ::memcpy(&roomId.snowflake, roomListResponsePacket.__data.roomId, sizeof(Snowflake));
+    std::string roomName((char*)roomListResponsePacket.__data.name, roomListResponsePacket.__data.packetLength - (sizeof(std::uint16_t) * 7));
+    roomNames_[roomId] = roomName;
+    findRoomId_[roomName] = roomId;
+
+    spdlog::info("{}", roomName);
+}
+
+void ClientManager::processRoomJoinResponsePacket(RoomJoinResponsePacket roomJoinResponsePacket, Chattr::IOCPPASSINDATA* data) {
+}
+
+void ClientManager::processRoomExitResponsePacket(RoomExitResponsePacket roomExitResponsePacket, Chattr::IOCPPASSINDATA* data) {
+}
+
+void ClientManager::processUsersListResponsePacket(UsersListResponsePacket usersListResponsePacket, Chattr::IOCPPASSINDATA* data) {
+    Snowflake userId;
+    ::memcpy(&userId.snowflake, usersListResponsePacket.__data.userId, sizeof(Snowflake));
+    std::string userName((char*)usersListResponsePacket.__data.name, usersListResponsePacket.__data.packetLength - (sizeof(std::uint16_t) * 7));
+    userNames_[userId] = userName;
+    findUserId_[userName] = userId;
+
+    spdlog::info("{}", userName);
+}
+
+void ClientManager::processDataPostPacket(DataPostPacket dataPostPacket, IOCPPASSINDATA* data) {
+    Snowflake sentUserId;
+    ::memcpy(&sentUserId.snowflake, dataPostPacket.__data.sourceId, sizeof(Snowflake));
+    std::string sentUserName = userNames_[sentUserId];
+    std::string message((char*)dataPostPacket.__data.data, dataPostPacket.__data.packetLength - (sizeof(std::uint16_t) * 5));
+
+    spdlog::info("[{}] {}", sentUserName, message); // todo: pass data to main thread
+}
+
+void ClientManager::processContinuePacket(ContinuePacket continuePacket, IOCPPASSINDATA* data) {
+}
+
+void ClientManager::sendMessage(Snowflake ID, std::string message) {
+    DataPostPacket dataPostPacket;
+    dataPostPacket.__data.packetType = PacketCategory::PACKET_POST;
+    dataPostPacket.__data.requestType = RequestType::DATA;
+    dataPostPacket.__data.dataType = DataType::TEXT;
+    dataPostPacket.__data.packetLength = message.size() + sizeof(Snowflake) * 2;
+    memcpy(dataPostPacket.__data.sourceId, &myID_.snowflake, sizeof(Snowflake));
+    memcpy(dataPostPacket.__data.destId, &ID.snowflake, sizeof(Snowflake));
+    memcpy(dataPostPacket.__data.data, message.c_str(), message.size());
+
+    int packetLength = dataPostPacket.__data.packetLength;
+
+    data_->recvbytes = data_->sendbytes = 0;
+    data_->transferredbytes = 0;
+    data_->wsabuf.len = data_->sendbytes = packetLength + 8;
+
+    dataPostPacket.convToN();
+    memcpy(data_->wsabuf.buf, dataPostPacket.serialized, packetLength + 8);
+    iocp_.send(data_, 1, 0);
+}
+
+void ClientManager::registerUser(std::string userName) {
+    LoginRequestPacket loginRequestPacket;
+    loginRequestPacket.__data.packetType = PacketCategory::PACKET_REQUEST;
+    loginRequestPacket.__data.requestType = RequestType::LOGIN;
+    loginRequestPacket.__data.dataType = DataType::BINARY;
+    loginRequestPacket.__data.packetLength = userName.size();
+    memcpy(loginRequestPacket.__data.data, userName.c_str(), userName.size());
+
+    int packetLength = loginRequestPacket.__data.packetLength;
+
+    data_->recvbytes = data_->sendbytes = 0;
+    data_->transferredbytes = 0;
+    data_->wsabuf.len = packetLength + 8;
+
+    loginRequestPacket.convToN();
+    memcpy(data_->wsabuf.buf, loginRequestPacket.serialized, packetLength + 8);
+    data_->sendbytes = packetLength + 8;
+    iocp_.send(data_, 1, 0);
+}
+
+void ClientManager::getUserList() {
+    if (inRoom_) {
+        RoomUsersListRequestPacket roomUsersListRequestPacket;
+        roomUsersListRequestPacket.__data.packetType = PacketCategory::PACKET_REQUEST;
+        roomUsersListRequestPacket.__data.requestType = RequestType::ROOM_USERS_LIST;
+        roomUsersListRequestPacket.__data.dataType = DataType::BINARY;
+        roomUsersListRequestPacket.__data.packetLength = sizeof(Snowflake);
+        memcpy(roomUsersListRequestPacket.__data.roomId, &myRoomID_.snowflake, sizeof(Snowflake));
+
+        int packetLength = roomUsersListRequestPacket.__data.packetLength;
+
+        data_->recvbytes = data_->sendbytes = 0;
+        data_->transferredbytes = 0;
+        data_->wsabuf.len = packetLength + 8;
+
+        roomUsersListRequestPacket.convToN();
+        memcpy(data_->wsabuf.buf, roomUsersListRequestPacket.serialized, packetLength + 8);
+        iocp_.send(data_, 1, 0);
+    }
+    else {
+        UsersListRequestPacket usersListRequestPacket;
+        usersListRequestPacket.__data.packetType = PacketCategory::PACKET_REQUEST;
+        usersListRequestPacket.__data.requestType = RequestType::USERS_LIST;
+        usersListRequestPacket.__data.dataType = DataType::BINARY;
+        usersListRequestPacket.__data.packetLength = 0;
+
+        int packetLength = usersListRequestPacket.__data.packetLength;
+
+        data_->recvbytes = data_->sendbytes = 0;
+        data_->transferredbytes = 0;
+        data_->wsabuf.len = packetLength + 8;
+
+        usersListRequestPacket.convToN();
+        memcpy(data_->wsabuf.buf, usersListRequestPacket.serialized, packetLength + 8);
+        iocp_.send(data_, 1, 0);
+    }
+}
+
+void ClientManager::createRoom(std::string roomName) {
+    RoomCreateRequestPacket roomCreateRequestPacket;
+    roomCreateRequestPacket.__data.packetType = PacketCategory::PACKET_REQUEST;
+    roomCreateRequestPacket.__data.requestType = RequestType::ROOM_CREATE;
+    roomCreateRequestPacket.__data.dataType = DataType::BINARY;
+    roomCreateRequestPacket.__data.packetLength = roomName.size();
+    memcpy(roomCreateRequestPacket.__data.data, roomName.c_str(), roomName.size());
+
+    int packetLength = roomCreateRequestPacket.__data.packetLength;
+
+    data_->recvbytes = data_->sendbytes = 0;
+    data_->transferredbytes = 0;
+    data_->wsabuf.len = packetLength + 8;
+
+    roomCreateRequestPacket.convToN();
+    memcpy(data_->wsabuf.buf, roomCreateRequestPacket.serialized, packetLength + 8);
+    iocp_.send(data_, 1, 0);
+}
+
+void ClientManager::getRoomList() {
+    RoomListRequestPacket roomListRequestPacket;
+    roomListRequestPacket.__data.packetType = PacketCategory::PACKET_REQUEST;
+    roomListRequestPacket.__data.requestType = RequestType::ROOM_LIST;
+    roomListRequestPacket.__data.dataType = DataType::BINARY;
+    roomListRequestPacket.__data.packetLength = 0;
+
+    int packetLength = roomListRequestPacket.__data.packetLength;
+
+    data_->recvbytes = data_->sendbytes = 0;
+    data_->transferredbytes = 0;
+    data_->wsabuf.len = packetLength + 8;
+
+    roomListRequestPacket.convToN();
+    memcpy(data_->wsabuf.buf, roomListRequestPacket.serialized, packetLength + 8);
+    iocp_.send(data_, 1, 0);
+}
+
+void ClientManager::joinRoom(Snowflake UID, Snowflake RID) {
+    RoomJoinRequestPacket roomJoinRequestPacket;
+    roomJoinRequestPacket.__data.packetType = PacketCategory::PACKET_REQUEST;
+    roomJoinRequestPacket.__data.requestType = RequestType::ROOM_JOIN;
+    roomJoinRequestPacket.__data.dataType = DataType::BINARY;
+    roomJoinRequestPacket.__data.packetLength = sizeof(Snowflake) * 2;
+    memcpy(roomJoinRequestPacket.__data.myId, &UID.snowflake, sizeof(Snowflake));
+    memcpy(roomJoinRequestPacket.__data.roomId, &RID.snowflake, sizeof(Snowflake));
+
+    int packetLength = roomJoinRequestPacket.__data.packetLength;
+
+    data_->recvbytes = data_->sendbytes = 0;
+    data_->transferredbytes = 0;
+    data_->wsabuf.len = packetLength + 8;
+    roomJoinRequestPacket.convToN();
+    memcpy(data_->wsabuf.buf, roomJoinRequestPacket.serialized, packetLength + 8);
+    iocp_.send(data_, 1, 0);
+    inRoom_ = true;
+    myRoomID_ = RID;
+}
+
+void ClientManager::exitRoom(Snowflake UID, Snowflake RID) {
+    RoomExitRequestPacket roomExitRequestPacket;
+    roomExitRequestPacket.__data.packetType = PacketCategory::PACKET_REQUEST;
+    roomExitRequestPacket.__data.requestType = RequestType::ROOM_EXIT;
+    roomExitRequestPacket.__data.dataType = DataType::BINARY;
+    roomExitRequestPacket.__data.packetLength = sizeof(Snowflake) * 2;
+    memcpy(roomExitRequestPacket.__data.myId, &UID.snowflake, sizeof(Snowflake));
+    memcpy(roomExitRequestPacket.__data.roomId, &RID.snowflake, sizeof(Snowflake));
+
+    int packetLength = roomExitRequestPacket.__data.packetLength;
+
+    data_->recvbytes = data_->sendbytes = 0;
+    data_->transferredbytes = 0;
+    data_->wsabuf.len = packetLength + 8;
+
+    roomExitRequestPacket.convToN();
+    memcpy(data_->wsabuf.buf, roomExitRequestPacket.serialized, packetLength + 8);
+    iocp_.send(data_, 1, 0);
+    inRoom_ = false;
+}
+
+void ClientManager::run() {
+    StringTokenizer tokenizer;
+    std::string nickname;
+
+    std::cout << "Please enter your nickname: ";
+    std::getline(std::cin, nickname);
+    tokenizer.set(nickname.c_str(), nickname.size());
+
+    registerUser(tokenizer.get()[0]);
+
+    std::cout << "Commads:" << std::endl;
+    std::cout << "/w <username> : Send direct message to specified user" << std::endl;
+    std::cout << "/join <roomname> : Enter specified room" << std::endl;
+    std::cout << "/exit : Exit current room" << std::endl;
+    std::cout << "/create <roomname> : Create room" << std::endl;
+    std::cout << "/userlist : Print all registred users" << std::endl;
+    std::cout << "/roomlist : Print all registred rooms" << std::endl;
+    std::cout << "/quit : Terminate this program" << std::endl;
+
+    while (true) {
+        std::string input;
+
+        std::unique_lock<std::mutex> lock2(screenMutex_);
+        if (inRoom_) {
+            std::cout << "[" + nickname + "@" + roomNames_[myRoomID_] + "]" + " ";
+        }
+        else {
+            std::cout << "[" + nickname + "]" + " ";
+        }
+        lock2.unlock();
+
+        std::getline(std::cin, input);
+        tokenizer.set(input.c_str(), input.size());
+        auto tokens = tokenizer.get();
+        if (tokens.size() == 0)
+            continue;
+
+        if (tokens[0] == "/w") {
+            if (findUserId_.find(tokens[1]) == findUserId_.end()) {
+                resourceMutex_.lock();
+                messageQueue_.push("User not found");
+                resourceMutex_.unlock();
+                continue;
+            }
+
+            Snowflake destId = findUserId_[tokens[1]];
+
+            std::string message;
+            for (int i = 2; i < tokens.size(); i++)
+                message += tokens[i] + " ";
+                
+            sendMessage(destId, message);
+        }
+        else if (tokens[0] == "/join") {
+            std::string roomName;
+            for (int i = 1; i < tokens.size(); i++)
+                roomName += tokens[i];
+
+            if (findRoomId_.find(roomName) == findRoomId_.end()) {
+                resourceMutex_.lock();
+                messageQueue_.push("Room not found");
+                resourceMutex_.unlock();
+                continue;
+            }
+            joinRoom(myID_, findRoomId_[roomName]);
+        }
+        else if (tokens[0] == "/exit") {
+            if (!inRoom_) {
+                resourceMutex_.lock();
+                messageQueue_.push("You are not in any room");
+                resourceMutex_.unlock();
+                continue;
+            }
+            exitRoom(myID_, myRoomID_);
+        }
+        else if (tokens[0] == "/create") {
+            std::string roomName = tokens[1];
+            createRoom(roomName);
+        }
+        else if (tokens[0] == "/userlist")
+            getUserList();
+        else if (tokens[0] == "/roomlist")
+            getRoomList();
+        else if (tokens[0] == "/quit") {
+            break;
+        }
+        else if (inRoom_) {
+            std::string message;
+            for (int i = 0; i < tokens.size(); i++)
+                message += tokens[i];
+            sendMessage(myRoomID_, message);
+        }
+        else {
+            resourceMutex_.lock();
+            messageQueue_.push("Command not found");
+            resourceMutex_.unlock();
+        }
+    }
+}
+
+}

Client/src/Socket/Log.cpp

@@ -0,0 +1,25 @@
+#include "Socket/Log.hpp"
+
+#include "spdlog/sinks/stdout_color_sinks.h"
+#include "spdlog/sinks/rotating_file_sink.h"
+#ifdef _WIN32
+#include "spdlog/sinks/msvc_sink.h"
+#endif
+
+#include "precomp.hpp"
+
+namespace Chattr::log {
+
+void setDefaultLogger(spdlog::level::level_enum logLevel, gsl::czstring logFileName, std::uint32_t logFileSize, std::uint32_t logFileCount) {
+    std::vector<spdlog::sink_ptr> sinks;
+    sinks.push_back(std::make_shared<spdlog::sinks::stdout_color_sink_mt>());
+    sinks.push_back(std::make_shared<spdlog::sinks::rotating_file_sink_mt>(logFileName, logFileSize, logFileCount, false));
+#ifdef _WIN32
+    sinks.push_back(std::make_shared<spdlog::sinks::msvc_sink_mt>());
+#endif
+    auto chatteringLogger = std::make_shared<spdlog::logger>("Chattering Logger", begin(sinks), end(sinks));
+    chatteringLogger->set_level(logLevel);
+    spdlog::set_default_logger(chatteringLogger);
+}
+
+}

Client/src/Utils/ConfigManager.cpp

@@ -0,0 +1,56 @@
+#include "Utils/ConfigManager.hpp"
+#include "precomp.hpp"
+#include <fstream>
+#include <json/json.h>
+#include <iostream>
+#include <string>
+
+namespace Chattr {
+ConfigManager::Config ConfigManager::load() {
+  Config config;
+
+  std::ifstream configfile("config.json", std::ifstream::binary);
+  if (!configfile.is_open()) {
+    std::ofstream defaultConfig("config.json", std::ios::out);
+    config.configJsonRoot["IP Version"] = 6;
+    config.configJsonRoot["IP"] = "::1";
+    config.configJsonRoot["Port"] = 9010;
+    config.configJsonRoot["LogLevel"] = 1;
+    config.configJsonRoot["LogfileName"] = "Chattering.log";
+    config.configJsonRoot["LogfileSize"] = UINT32_MAX;
+    config.configJsonRoot["LogfileCount"] = 5;
+    defaultConfig << config.configJsonRoot;
+    defaultConfig.close();
+    spdlog::critical("\"config.json\" is missing. Default configuration has been written.");
+  }
+  try {
+    if (configfile.is_open())
+      configfile >> config.configJsonRoot;
+
+    config.ipVersion = config.configJsonRoot["IP Version"].asInt();
+    if (config.ipVersion != 4 && config.ipVersion != 6)
+      throw std::runtime_error("Invalid IP Version.");
+
+    config.IP = config.configJsonRoot["IP"].asCString();
+
+    config.Port = config.configJsonRoot["Port"].asInt();
+    if (config.Port < 0 || config.Port > 65535)
+      throw std::runtime_error("Invalid listen port.");
+
+    int ll_ = config.configJsonRoot["LogLevel"].asInt();
+    if (ll_ >= 0 && ll_ < spdlog::level::n_levels)
+      config.logLevel = (spdlog::level::level_enum)ll_;
+    else
+      throw std::runtime_error("Invalid log level.");
+
+    config.logFileName = config.configJsonRoot["LogfileName"].asCString();
+    config.logfileSize = config.configJsonRoot["LogfileSize"].asUInt();
+    config.logfileCount = config.configJsonRoot["LogfileCount"].asUInt();
+  }
+  catch (Json::RuntimeError e) {
+      spdlog::critical(std::string(std::string("[Json Error: ]") + e.what()).c_str());
+      std::exit(EXIT_FAILURE);
+  }
+  return config;
+}
+}

Client/src/client.cpp

@@ -1,91 +1,14 @@
+#define _CLIENT
 #include "Socket/TCPSocket.hpp"
 #include "Socket/Address.hpp"
 #include "Socket/Log.hpp"
 #include "Packet/Packet.hpp"
 #include "Utils/Snowflake.hpp"
+#include "ClientManager/ClientManager.hpp"
 #include "precomp.hpp"
 
 int main() {
-    Chattr::TCPSocket sock;
-    sock.init(AF_INET6);
-
-    Chattr::Address serveraddr(AF_INET6, "::1", 9011);
-
-    if (sock.connect(serveraddr) == INVALID_SOCKET) {
-        spdlog::error("{}", strerror(errno));
-        return 0;
-    }
-    spdlog::info("Connection established from {}", (std::string)serveraddr);
-
-    Chattr::Snowflake myId;
-
-    Chattr::LoginRequestPacket loginRequestPacket;
-    loginRequestPacket.__data.packetType = Chattr::PacketCategory::PACKET_REQUEST;
-    loginRequestPacket.__data.requestType = Chattr::RequestType::LOGIN;
-    loginRequestPacket.__data.dataType = Chattr::DataType::BINARY;
-    loginRequestPacket.__data.packetLength = 14;
-    memcpy(loginRequestPacket.__data.data, "Hello, World!", 14);
-    loginRequestPacket.convToN();
-    sock.send(loginRequestPacket.serialized, 8 + 14, 0);
-
-    Chattr::LoginResponsePacket loginResponsePacket;
-    sock.recv(loginResponsePacket.serialized, 18, 0);
-    loginResponsePacket.convToH();
-    ::memcpy(&myId, loginResponsePacket.__data.yourId, sizeof(Chattr::Snowflake));
-
-    Chattr::UsersListRequestPacket usersListRequestPacket;
-    usersListRequestPacket.__data.packetType = Chattr::PacketCategory::PACKET_REQUEST;
-    usersListRequestPacket.__data.requestType = Chattr::RequestType::USERS_LIST;
-    usersListRequestPacket.__data.dataType = Chattr::DataType::TEXT;
-    usersListRequestPacket.__data.packetLength = 0;
-    usersListRequestPacket.convToN();
-    sock.send(usersListRequestPacket.serialized, 8, 0);
-
-    std::vector<std::pair<Chattr::Snowflake, std::string>> users;
-
-    Chattr::UsersListResponsePacket usersListResponsePacket;
-    sock.recv(usersListResponsePacket.serialized, 8, 0);
-    std::uint16_t dataLength = ::ntohs(usersListResponsePacket.__data.packetLength);
-    sock.recv(usersListResponsePacket.serialized + 8, dataLength, 0);
-    usersListRequestPacket.convToH();
-
-    int usersCount = usersListResponsePacket.__data.usersCount;
-    users.reserve(usersCount);
-    Chattr::Snowflake userId;
-    ::memcpy(&userId.snowflake, usersListResponsePacket.__data.userId, sizeof(Chattr::Snowflake));
-    users.emplace_back(
-        userId,
-        std::string((char*)usersListResponsePacket.__data.name, usersListResponsePacket.__data.packetLength - 14)
-    );
-
-    for (int i = 0; i < usersCount - 1; i++) {
-        sock.recv(usersListResponsePacket.serialized, 8, 0);
-        std::uint16_t dataLength = ::ntohs(usersListResponsePacket.__data.packetLength);
-        sock.recv(usersListResponsePacket.serialized + 8, dataLength, 0);
-        usersListRequestPacket.convToH();
-
-        ::memcpy(&userId.snowflake, usersListResponsePacket.__data.userId, sizeof(Chattr::Snowflake));
-        users.emplace_back(
-            userId,
-            std::string((char*)usersListResponsePacket.__data.name, usersListResponsePacket.__data.packetLength - 14)
-        );
-    }
-
-    Chattr::DataPostPacket dataPostPacket;
-    dataPostPacket.__data.packetType = Chattr::PacketCategory::PACKET_POST;
-    dataPostPacket.__data.requestType = Chattr::RequestType::DATA;
-    dataPostPacket.__data.dataType = Chattr::DataType::TEXT;
-    dataPostPacket.__data.packetLength = 14 + 8;
-    for (auto user : users)
-        if (user.first != myId) {
-            ::memcpy(dataPostPacket.__data.destId, &user.first.snowflake, sizeof(Chattr::Snowflake));
-            break;
-        }
-    memcpy(dataPostPacket.__data.data, "Hello, World!", 14);
-    dataPostPacket.convToN();
-    sock.send(&dataPostPacket.serialized, 6 + 14 + 8, 0);
-
-    Chattr::ResponsePacket packet;
-    sock.recv(&packet.serialized, 10, 0);
-    packet.convToH();
+    Chattr::ClientManager client;
+    client.init();
+    client.run();
 }

Server/include/ServerManager/ServerManager.hpp

@@ -22,21 +22,23 @@ public:
         struct Address serveraddr;
         if (config.ipVersion == 4) {
             listenSock_.init(AF_INET);
-            serveraddr.set(AF_INET, INADDR_ANY, config.listenPort);
+            serveraddr.set(AF_INET, config.IP, config.Port);
             clientAddr_.setType(AF_INET);
         }
         else if (config.ipVersion == 6) {
             listenSock_.init(AF_INET6);
-            serveraddr.set(AF_INET6, in6addr_any, config.listenPort);
+            serveraddr.set(AF_INET6, config.IP, config.Port);
             clientAddr_.setType(AF_INET6);
         }
         listenSock_.bind(serveraddr);
         listenSock_.listen(SOMAXCONN);
+        
+        spdlog::info("Server listening on [{}]", (std::string)serveraddr);
 	}
 
     void init() {
         init([this](ThreadPool* thread, IOCPPASSINDATA* data) {
-            _IOCPClient(thread, data);
+            this->_IOCPClient(thread, data);
         });
     }
 
@@ -46,14 +48,16 @@ public:
     void processRoomJoinRequestPacket(RoomJoinRequestPacket roomJoinRequestPacket, IOCPPASSINDATA* data);
     void processRoomExitRequestPacket(RoomExitRequestPacket roomExitRequestPacket, IOCPPASSINDATA* data);
     void processUsersListRequestPacket(UsersListRequestPacket usersListRequestPacket, IOCPPASSINDATA* data);
+    void processUsersListInRoomRequestPacket(RoomUsersListRequestPacket roomUsersListRequestPacket, IOCPPASSINDATA* data);
     void processDataPostPacket(DataPostPacket dataPostPacket, IOCPPASSINDATA* data);
     void processContinuePacket(ContinuePacket continuePacket, IOCPPASSINDATA* data);
 
-    void registerUser(std::string userName, std::shared_ptr<TCPSocket> sock);
+    bool registerUser(std::string userName, std::shared_ptr<TCPSocket> sock);
     void deleteUser(Snowflake UID);
     std::vector<std::pair<Snowflake, std::string>> getUserList();
+    std::vector<std::pair<Snowflake, std::string>> getUserListInRoom(Snowflake RID);
 
-    void createRoom(std::string roomName);
+    Snowflake createRoom(std::string roomName);
     void deleteRoom(Snowflake RID);
     std::vector<std::pair<Snowflake, std::string>> getRoomList();
 
@@ -80,7 +84,7 @@ private:
     std::unordered_map<std::shared_ptr<TCPSocket>, Snowflake> userSocket2UID_;
 
     std::unordered_map<Snowflake, std::string> userNames_;
-
+    std::unordered_map<std::string, Snowflake> userName2ID_;
 
 };
 

Server/src/ServerManager/ServerManager.cpp

@@ -5,9 +5,24 @@
 namespace Chattr {
 
 void ServerManager::_IOCPClient(Chattr::ThreadPool* thread, Chattr::IOCPPASSINDATA* data) {
+    if (data->event == IOCPEVENT::QUIT) {
+        if (userSocket2UID_.find(data->socket) != userSocket2UID_.end()) {
+            for (auto room : rooms_) {
+                if (room.second.find(userSocket2UID_[data->socket]) != room.second.end()) {
+                    exitRoom(userSocket2UID_[data->socket], room.first);
+                }
+            }
+            deleteUser(userSocket2UID_[data->socket]);
+        }
+        delete data;
+        return;
+    }
+
     Chattr::Packet pack;
     int packetSize = data->transferredbytes;
 
+    memcpy(pack.serialized, data->wsabuf.buf, data->wsabuf.len);
+
     if (data->event == IOCPEVENT::WRITE && data->transferredbytes >= data->wsabuf.len) {
         data->event = IOCPEVENT::READ;
         data->wsabuf.len = 1500;
@@ -15,8 +30,6 @@ void ServerManager::_IOCPClient(Chattr::ThreadPool* thread, Chattr::IOCPPASSINDA
         return;
     }
 
-    memcpy(pack.serialized, data->wsabuf.buf, data->wsabuf.len);
-
     std::uint16_t packetLength = ::ntohs(pack.__data.packetLength);
 
     if (data->event == IOCPEVENT::READ && data->transferredbytes < packetLength + 8) {
@@ -71,6 +84,13 @@ void ServerManager::_IOCPClient(Chattr::ThreadPool* thread, Chattr::IOCPPASSINDA
             processUsersListRequestPacket(usersListRequestPacket, data);
         }
         break;
+    case PacketSet::ROOMUSERSLISTREQUEST: {
+            RoomUsersListRequestPacket roomUsersListRequestPacket;
+            std::memcpy(&roomUsersListRequestPacket.serialized, pack.serialized, 8 + packetLength);
+            roomUsersListRequestPacket.convToH();
+            processUsersListInRoomRequestPacket(roomUsersListRequestPacket, data);
+        }
+        break;
     case PacketSet::DATAPOST: {
             DataPostPacket dataPostPacket;
             std::memcpy(&dataPostPacket.serialized, &pack.serialized, 8 + packetLength);
@@ -135,6 +155,8 @@ PacketSet ServerManager::packetParser(Packet Packet) {
             return PacketSet::ROOMEXITREQUEST;
         case RequestType::USERS_LIST:
             return PacketSet::USERSLISTREQUEST;
+        case RequestType::ROOM_USERS_LIST:
+            return PacketSet::ROOMUSERSLISTREQUEST;
         case RequestType::DATA:
             return PacketSet::INVALID;
         }
@@ -153,6 +175,8 @@ PacketSet ServerManager::packetParser(Packet Packet) {
             return PacketSet::ROOMEXITRESPONSE;
         case RequestType::USERS_LIST:
             return PacketSet::USERSLISTRESPONSE;
+        case RequestType::ROOM_USERS_LIST:
+            return PacketSet::ROOMUSERSLISTRESPONSE;
         case RequestType::DATA:
             return PacketSet::INVALID;
         }
@@ -167,40 +191,141 @@ PacketSet ServerManager::packetParser(Packet Packet) {
 }
 
 void ServerManager::processLoginRequestPacket(LoginRequestPacket loginRequestPacket, Chattr::IOCPPASSINDATA* data) {
+    std::unique_lock<std::mutex> lock(resourceMutex_);
     std::string userName(
         (char*)loginRequestPacket.__data.data,
         loginRequestPacket.__data.packetLength);
-    registerUser(userName, data->socket);
+    if (registerUser(userName, data->socket)) {
+        LoginResponsePacket loginResponsePacket;
+        loginResponsePacket.__data.packetType = Chattr::PacketCategory::PACKET_RESPONSE;
+        loginResponsePacket.__data.requestType = Chattr::RequestType::LOGIN;
+        loginResponsePacket.__data.dataType = Chattr::DataType::BINARY;
+        loginResponsePacket.__data.packetLength = sizeof(Chattr::ResponseStatusCode) + sizeof(Snowflake);
+        loginResponsePacket.__data.responseStatusCode = Chattr::ResponseStatusCode::RES_OK;
+        Snowflake yourId = userSocket2UID_[data->socket];
+        ::memcpy(loginResponsePacket.__data.yourId, &yourId, sizeof(Snowflake));
 
-    LoginResponsePacket loginResponsePacket;
-    loginResponsePacket.__data.packetType = Chattr::PacketCategory::PACKET_RESPONSE;
-    loginResponsePacket.__data.requestType = Chattr::RequestType::LOGIN;
-    loginResponsePacket.__data.dataType = Chattr::DataType::TEXT;
-    loginResponsePacket.__data.packetLength = sizeof(Chattr::ResponseStatusCode) + sizeof(Snowflake);
-    loginResponsePacket.__data.responseStatusCode = Chattr::ResponseStatusCode::OK;
-    Snowflake yourId = userSocket2UID_[data->socket];
-    ::memcpy(loginResponsePacket.__data.yourId, &yourId, sizeof(Snowflake));
+        loginResponsePacket.convToN();
+        memcpy(data->wsabuf.buf, loginResponsePacket.serialized, 18);
+        data->sendbytes = 18;
+        data->wsabuf.len = 18;
+        data->IOCPInstance->send(data, 1, 0);
+    }
+    else {
+        LoginResponsePacket loginResponsePacket;
+        loginResponsePacket.__data.packetType = Chattr::PacketCategory::PACKET_RESPONSE;
+        loginResponsePacket.__data.requestType = Chattr::RequestType::LOGIN;
+        loginResponsePacket.__data.dataType = Chattr::DataType::BINARY;
+        loginResponsePacket.__data.packetLength = sizeof(Chattr::ResponseStatusCode);
+        loginResponsePacket.__data.responseStatusCode = Chattr::ResponseStatusCode::BAD_REQUEST;
 
-    loginResponsePacket.convToN();
-    memcpy(data->wsabuf.buf, loginResponsePacket.serialized, 16);
-    data->sendbytes = 16;
-    data->wsabuf.len = 16;
-    data->IOCPInstance->send(data, 1, 0);
+        loginResponsePacket.convToN();
+        memcpy(data->wsabuf.buf, loginResponsePacket.serialized, 10);
+        data->sendbytes = 10;
+        data->wsabuf.len = 10;
+        data->IOCPInstance->send(data, 1, 0);
+    }
 }
 
 void ServerManager::processRoomCreateRequestPacket(RoomCreateRequestPacket roomCreateRequestPacket, Chattr::IOCPPASSINDATA* data) {
+    std::unique_lock<std::mutex> lock(resourceMutex_);
+    std::string roomName(
+        (char*)roomCreateRequestPacket.__data.data,
+        roomCreateRequestPacket.__data.packetLength);
+    Snowflake RID = createRoom(roomName);
+
+    RoomCreateResponsePacket roomCreateResponsePacket;
+    roomCreateResponsePacket.__data.packetType = Chattr::PacketCategory::PACKET_RESPONSE;
+    roomCreateResponsePacket.__data.requestType = Chattr::RequestType::ROOM_CREATE;
+    roomCreateResponsePacket.__data.dataType = Chattr::DataType::BINARY;
+    roomCreateResponsePacket.__data.packetLength = sizeof(Chattr::ResponseStatusCode) + sizeof(Snowflake);
+    roomCreateResponsePacket.__data.responseStatusCode = Chattr::ResponseStatusCode::RES_OK;
+    ::memcpy(roomCreateResponsePacket.__data.createdRoomId, &RID, sizeof(Snowflake));
+
+    roomCreateResponsePacket.convToN();
+    memcpy(data->wsabuf.buf, roomCreateResponsePacket.serialized, 18);
+    data->sendbytes = 18;
+    data->wsabuf.len = 18;
+    data->IOCPInstance->send(data, 1, 0);
 }
 
 void ServerManager::processRoomListRequest(RoomListRequestPacket roomListRequestPacket, Chattr::IOCPPASSINDATA* data) {
+    std::unique_lock<std::mutex> lock(resourceMutex_);
+    auto roomsList = getRoomList();
+
+    for (auto room : roomsList) {
+        RoomListResponsePacket roomListResponsePacket;
+        roomListResponsePacket.__data.packetType = Chattr::PacketCategory::PACKET_RESPONSE;
+        roomListResponsePacket.__data.requestType = Chattr::RequestType::ROOM_LIST;
+        roomListResponsePacket.__data.dataType = Chattr::DataType::BINARY;
+        roomListResponsePacket.__data.packetLength = sizeof(Chattr::ResponseStatusCode) + sizeof(std::uint32_t) + sizeof(Snowflake) + room.second.size();
+        roomListResponsePacket.__data.responseStatusCode = Chattr::ResponseStatusCode::RES_OK;
+        roomListResponsePacket.__data.roomCount = roomsList.size();
+        ::memcpy(roomListResponsePacket.__data.roomId, &room.first, sizeof(Snowflake));
+        ::memcpy(roomListResponsePacket.__data.name, room.second.c_str(), room.second.size());
+
+        int packetLength = roomListResponsePacket.__data.packetLength;
+
+        Chattr::IOCPPASSINDATA* ptr = new Chattr::IOCPPASSINDATA(*data);
+        ptr->wsabuf.len = packetLength + 8;
+
+        roomListResponsePacket.convToN();
+        memcpy(ptr->wsabuf.buf, roomListResponsePacket.serialized, packetLength + 8);
+        data->sendbytes = packetLength + 8;
+        data->IOCPInstance->send(ptr, 1, 0);
+    }
 }
 
 void ServerManager::processRoomJoinRequestPacket(RoomJoinRequestPacket roomJoinRequestPacket, Chattr::IOCPPASSINDATA* data) {
+    std::unique_lock<std::mutex> lock(resourceMutex_);
+    Snowflake myID, roomID;
+    ::memcpy(&myID.snowflake, roomJoinRequestPacket.__data.myId, sizeof(Snowflake));
+    ::memcpy(&roomID.snowflake, roomJoinRequestPacket.__data.roomId, sizeof(Snowflake));
+
+    joinRoom(myID, roomID);
+
+    RoomJoinResponsePacket roomJoinResponsePacket;
+    roomJoinResponsePacket.__data.packetType = Chattr::PacketCategory::PACKET_RESPONSE;
+    roomJoinResponsePacket.__data.requestType = Chattr::RequestType::ROOM_JOIN;
+    roomJoinResponsePacket.__data.dataType = Chattr::DataType::BINARY;
+    roomJoinResponsePacket.__data.packetLength = sizeof(Chattr::ResponseStatusCode);
+    roomJoinResponsePacket.__data.responseStatusCode = Chattr::ResponseStatusCode::RES_OK;
+
+    int packetLength = roomJoinResponsePacket.__data.packetLength;
+
+    roomJoinResponsePacket.convToN();
+    ::memcpy(data->wsabuf.buf, roomJoinResponsePacket.serialized, 10);
+    data->sendbytes = 10;
+    data->wsabuf.len = 10;
+    data->IOCPInstance->send(data, 1, 0);
 }
 
 void ServerManager::processRoomExitRequestPacket(RoomExitRequestPacket roomExitRequestPacket, Chattr::IOCPPASSINDATA* data) {
+    std::unique_lock<std::mutex> lock(resourceMutex_);
+    Snowflake myID, roomID;
+    ::memcpy(&myID.snowflake, roomExitRequestPacket.__data.myId, sizeof(Snowflake));
+    ::memcpy(&roomID.snowflake, roomExitRequestPacket.__data.roomId, sizeof(Snowflake));
+
+    exitRoom(myID, roomID);
+
+    RoomExitResponsePacket roomExitResponsePacket;
+    roomExitResponsePacket.__data.packetType = Chattr::PacketCategory::PACKET_RESPONSE;
+    roomExitResponsePacket.__data.requestType = Chattr::RequestType::ROOM_EXIT;
+    roomExitResponsePacket.__data.dataType = Chattr::DataType::BINARY;
+    roomExitResponsePacket.__data.packetLength = sizeof(Chattr::ResponseStatusCode);
+    roomExitResponsePacket.__data.responseStatusCode = Chattr::ResponseStatusCode::RES_OK;
+
+    int packetLength = roomExitResponsePacket.__data.packetLength;
+
+    roomExitResponsePacket.convToN();
+    ::memcpy(data->wsabuf.buf, roomExitResponsePacket.serialized, 10);
+    data->sendbytes = 10;
+    data->wsabuf.len = 10;
+    data->IOCPInstance->send(data, 1, 0);
 }
 
 void ServerManager::processUsersListRequestPacket(UsersListRequestPacket usersListRequestPacket, Chattr::IOCPPASSINDATA* data) {
+    std::unique_lock<std::mutex> lock(resourceMutex_);
     auto usersList = getUserList();
 
     for (auto user : usersList) {
@@ -209,20 +334,15 @@ void ServerManager::processUsersListRequestPacket(UsersListRequestPacket usersLi
         usersListResponsePacket.__data.requestType = Chattr::RequestType::USERS_LIST;
         usersListResponsePacket.__data.dataType = Chattr::DataType::BINARY;
         usersListResponsePacket.__data.packetLength = sizeof(Chattr::ResponseStatusCode) + sizeof(std::uint32_t) + sizeof(Snowflake) + user.second.size();
-        usersListResponsePacket.__data.responseStatusCode = Chattr::ResponseStatusCode::OK;
+        usersListResponsePacket.__data.responseStatusCode = Chattr::ResponseStatusCode::RES_OK;
         usersListResponsePacket.__data.usersCount = usersList.size();
         ::memcpy(usersListResponsePacket.__data.userId, &user.first, sizeof(Snowflake));
         ::memcpy(usersListResponsePacket.__data.name, user.second.c_str(), user.second.size());
 
         int packetLength = usersListResponsePacket.__data.packetLength;
 
-        Chattr::IOCPPASSINDATA* ptr = new Chattr::IOCPPASSINDATA;
-        ::memset(&ptr->overlapped, 0, sizeof(OVERLAPPED));
-        ptr->socket = data->socket;
-        ptr->recvbytes = ptr->sendbytes = 0;
-        ptr->wsabuf.buf = ptr->buf;
+        Chattr::IOCPPASSINDATA* ptr = new Chattr::IOCPPASSINDATA(*data);
         ptr->wsabuf.len = packetLength + 8;
-        ptr->IOCPInstance = data->IOCPInstance;
 
         usersListResponsePacket.convToN();
         memcpy(ptr->wsabuf.buf, usersListResponsePacket.serialized, packetLength + 8);
@@ -231,7 +351,38 @@ void ServerManager::processUsersListRequestPacket(UsersListRequestPacket usersLi
     }
 }
 
-void ServerManager::processDataPostPacket(DataPostPacket dataPostPacket, IOCPPASSINDATA* data) {
+void ServerManager::processUsersListInRoomRequestPacket(RoomUsersListRequestPacket roomUsersListRequestPacket, IOCPPASSINDATA *data) {
+    std::unique_lock<std::mutex> lock(resourceMutex_);
+    Snowflake roomID;
+    ::memcpy(&roomID.snowflake, roomUsersListRequestPacket.__data.roomId, sizeof(Snowflake));
+    auto usersList = getUserListInRoom(roomID);
+
+    for (auto user : usersList) {
+        UsersListResponsePacket usersListResponsePacket;
+        usersListResponsePacket.__data.packetType = Chattr::PacketCategory::PACKET_RESPONSE;
+        usersListResponsePacket.__data.requestType = Chattr::RequestType::USERS_LIST;
+        usersListResponsePacket.__data.dataType = Chattr::DataType::BINARY;
+        usersListResponsePacket.__data.packetLength = sizeof(Chattr::ResponseStatusCode) + sizeof(std::uint32_t) + sizeof(Snowflake) + user.second.size();
+        usersListResponsePacket.__data.responseStatusCode = Chattr::ResponseStatusCode::RES_OK;
+        usersListResponsePacket.__data.usersCount = usersList.size();
+        ::memcpy(usersListResponsePacket.__data.userId, &user.first, sizeof(Snowflake));
+        ::memcpy(usersListResponsePacket.__data.name, user.second.c_str(), user.second.size());
+
+        int packetLength = usersListResponsePacket.__data.packetLength;
+
+        Chattr::IOCPPASSINDATA* ptr = new Chattr::IOCPPASSINDATA(*data);
+        ptr->wsabuf.len = packetLength + 8;
+
+        usersListResponsePacket.convToN();
+        memcpy(ptr->wsabuf.buf, usersListResponsePacket.serialized, packetLength + 8);
+        data->sendbytes = packetLength + 8;
+        data->IOCPInstance->send(ptr, 1, 0);
+    }
+}
+
+void ServerManager::processDataPostPacket(DataPostPacket dataPostPacket, IOCPPASSINDATA *data)
+{
+    std::unique_lock<std::mutex> lock(resourceMutex_);
     Snowflake destID;
     ::memcpy(&destID.snowflake, dataPostPacket.__data.destId, sizeof(Snowflake));
 
@@ -253,7 +404,7 @@ void ServerManager::processDataPostPacket(DataPostPacket dataPostPacket, IOCPPAS
     responsePacket.__data.requestType = Chattr::RequestType::DATA;
     responsePacket.__data.dataType = Chattr::DataType::TEXT;
     responsePacket.__data.packetLength = sizeof(Chattr::ResponseStatusCode);
-    responsePacket.__data.responseStatusCode = Chattr::ResponseStatusCode::OK;
+    responsePacket.__data.responseStatusCode = Chattr::ResponseStatusCode::RES_OK;
 
     responsePacket.convToN();
     memcpy(data->wsabuf.buf, responsePacket.serialized, 10);
@@ -263,36 +414,76 @@ void ServerManager::processDataPostPacket(DataPostPacket dataPostPacket, IOCPPAS
 
     int packetLength = dataPostPacket.__data.packetLength;
 
+    dataPostPacket.convToN();
     for (auto dest : destinationSockets) {
-
-        Chattr::IOCPPASSINDATA* ptr = new Chattr::IOCPPASSINDATA;
-        ::memset(&ptr->overlapped, 0, sizeof(OVERLAPPED));
+        Chattr::IOCPPASSINDATA* ptr = new Chattr::IOCPPASSINDATA(*data);
         ptr->socket = dest;
-        ptr->recvbytes = ptr->sendbytes = 0;
-        ptr->wsabuf.buf = ptr->buf;
-        ptr->wsabuf.len = packetLength + 6;
-        ptr->IOCPInstance = data->IOCPInstance;
+        ptr->wsabuf.len = packetLength + 8;
 
-        dataPostPacket.convToN();
-        memcpy(ptr->wsabuf.buf, dataPostPacket.serialized, packetLength + 6);
-        data->sendbytes = packetLength + 6;
+        memcpy(ptr->wsabuf.buf, dataPostPacket.serialized, packetLength + 8);
+        data->sendbytes = packetLength + 8;
         data->IOCPInstance->send(ptr, 1, 0);
     }
 }
 
 void ServerManager::processContinuePacket(ContinuePacket continuePacket, IOCPPASSINDATA* data) {
+    std::unique_lock<std::mutex> lock(resourceMutex_);
+    Snowflake destID;
+    ::memcpy(&destID.snowflake, continuePacket.__data.destId, sizeof(Snowflake));
+
+    std::vector<std::shared_ptr<TCPSocket>> destinationSockets;
+
+    if (userNames_.find(destID) != userNames_.end())
+        destinationSockets.push_back(UID2userSocket_[destID]);
+    else
+        for (auto user : rooms_[destID])
+            destinationSockets.push_back(user.second);
+
+    spdlog::info("Received [{}] from : [{}] to : [{}]",
+        std::string((char*)continuePacket.__data.data, continuePacket.__data.packetLength - (sizeof(std::uint16_t) * 5)),
+        (std::string)data->socket->remoteAddr,
+        destID.snowflake);
+
+    ResponsePacket responsePacket;
+    responsePacket.__data.packetType = Chattr::PacketCategory::PACKET_RESPONSE;
+    responsePacket.__data.requestType = Chattr::RequestType::DATA;
+    responsePacket.__data.dataType = Chattr::DataType::TEXT;
+    responsePacket.__data.packetLength = sizeof(Chattr::ResponseStatusCode);
+    responsePacket.__data.responseStatusCode = Chattr::ResponseStatusCode::RES_OK;
+
+    responsePacket.convToN();
+    memcpy(data->wsabuf.buf, responsePacket.serialized, 10);
+    data->sendbytes = 10;
+    data->wsabuf.len = 10;
+    data->IOCPInstance->send(data, 1, 0);
+
+    int packetLength = continuePacket.__data.packetLength;
+
+    for (auto dest : destinationSockets) {
+        Chattr::IOCPPASSINDATA* ptr = new Chattr::IOCPPASSINDATA(*data);
+        ptr->socket = dest;
+        ptr->wsabuf.len = packetLength + 8;
+
+        continuePacket.convToN();
+        memcpy(ptr->wsabuf.buf, continuePacket.serialized, packetLength + 8);
+        data->sendbytes = packetLength + 8;
+        data->IOCPInstance->send(ptr, 1, 0);
+    }
 }
 
-void ServerManager::registerUser(std::string userName, std::shared_ptr<TCPSocket> sock) {
-    std::lock_guard<std::mutex> lock(resourceMutex_);
+bool ServerManager::registerUser(std::string userName, std::shared_ptr<TCPSocket> sock) {
+    if (userName2ID_.find(userName) != userName2ID_.end()) {
+        return false;
+    }
     Snowflake UID = GenerateID();
     userNames_[UID] = userName;
+    userName2ID_[userName] = UID;
     UID2userSocket_[UID] = sock;
     userSocket2UID_[sock] = UID;
+    return true;
 }
 
 void ServerManager::deleteUser(Snowflake UID) {
-    std::lock_guard<std::mutex> lock(resourceMutex_);
     userNames_.erase(UID);
     std::shared_ptr<TCPSocket> sock = UID2userSocket_[UID];
     UID2userSocket_.erase(UID);
@@ -300,7 +491,6 @@ void ServerManager::deleteUser(Snowflake UID) {
 }
 
 std::vector<std::pair<Snowflake, std::string>> ServerManager::getUserList() {
-    std::lock_guard<std::mutex> lock(resourceMutex_);
     std::vector<std::pair<Snowflake, std::string>> userList;
     userList.reserve(userNames_.size());
 
@@ -310,21 +500,30 @@ std::vector<std::pair<Snowflake, std::string>> ServerManager::getUserList() {
     return userList;
 }
 
-void ServerManager::createRoom(std::string roomName) {
-    std::lock_guard<std::mutex> lock(resourceMutex_);
+std::vector<std::pair<Snowflake, std::string>> ServerManager::getUserListInRoom(Snowflake RID) {
+    std::vector<std::pair<Snowflake, std::string>> userList;
+    userList.reserve(rooms_[RID].size());
+
+    for (auto user : rooms_[RID])
+        userList.push_back({ user.first, userNames_[user.first] });
+
+    return userList;
+
+}
+
+Snowflake ServerManager::createRoom(std::string roomName) {
     Snowflake RID = GenerateID();
     roomNames_[RID] = roomName;
     rooms_[RID] = std::unordered_map<Snowflake, std::shared_ptr<TCPSocket>>();
+    return RID;
 }
 
 void ServerManager::deleteRoom(Snowflake RID) {
-    std::lock_guard<std::mutex> lock(resourceMutex_);
     roomNames_.erase(RID);
     rooms_.erase(RID);
 }
 
 std::vector<std::pair<Snowflake, std::string>> ServerManager::getRoomList() {
-    std::lock_guard<std::mutex> lock(resourceMutex_);
     std::vector<std::pair<Snowflake, std::string>> roomList;
     roomList.reserve(roomNames_.size());
 
@@ -335,13 +534,11 @@ std::vector<std::pair<Snowflake, std::string>> ServerManager::getRoomList() {
 }
 
 void ServerManager::joinRoom(Snowflake UID, Snowflake RID) {
-    std::lock_guard<std::mutex> lock(resourceMutex_);
     std::shared_ptr<TCPSocket> sock = UID2userSocket_[UID];
     rooms_[RID][UID] = sock;
 }
 
 void ServerManager::exitRoom(Snowflake UID, Snowflake RID) {
-    std::lock_guard<std::mutex> lock(resourceMutex_);
     rooms_[RID].erase(UID);
 }
 
@@ -349,13 +546,9 @@ void ServerManager::run() {
     while (true) {
         spdlog::info("Waiting for connection...");
         listenSock_.accept(clientSock_, clientAddr_);
-        bool enable = true;
-        clientSock_.setsockopt(SOL_SOCKET, SO_KEEPALIVE, (const char*)&enable, sizeof(enable));
+        spdlog::trace("Accepted connection from {}, [{}]", clientSock_.sock, (std::string)clientAddr_);
         Chattr::IOCPPASSINDATA* ptr = new Chattr::IOCPPASSINDATA;
-        ::memset(&ptr->overlapped, 0, sizeof(OVERLAPPED));
         ptr->socket = std::make_shared<TCPSocket>(std::move(clientSock_));
-        ptr->recvbytes = ptr->sendbytes = 0;
-        ptr->wsabuf.buf = ptr->buf;
         ptr->wsabuf.len = 1500;
         ptr->IOCPInstance = &iocp_;
 

Server/src/Socket/Log.cpp

@@ -0,0 +1,25 @@
+#include "Socket/Log.hpp"
+
+#include "spdlog/sinks/stdout_color_sinks.h"
+#include "spdlog/sinks/rotating_file_sink.h"
+#ifdef _WIN32
+#include "spdlog/sinks/msvc_sink.h"
+#endif
+
+#include "precomp.hpp"
+
+namespace Chattr::log {
+
+void setDefaultLogger(spdlog::level::level_enum logLevel, gsl::czstring logFileName, std::uint32_t logFileSize, std::uint32_t logFileCount) {
+    std::vector<spdlog::sink_ptr> sinks;
+    sinks.push_back(std::make_shared<spdlog::sinks::stdout_color_sink_mt>());
+    sinks.push_back(std::make_shared<spdlog::sinks::rotating_file_sink_mt>(logFileName, logFileSize, logFileCount, false));
+#ifdef _WIN32
+    sinks.push_back(std::make_shared<spdlog::sinks::msvc_sink_mt>());
+#endif
+    auto chatteringLogger = std::make_shared<spdlog::logger>("Chattering Logger", begin(sinks), end(sinks));
+    chatteringLogger->set_level(logLevel);
+    spdlog::set_default_logger(chatteringLogger);
+}
+
+}

Server/src/Utils/ConfigManager.cpp

@@ -13,7 +13,8 @@ ConfigManager::Config ConfigManager::load() {
   if (!configfile.is_open()) {
     std::ofstream defaultConfig("config.json", std::ios::out);
     config.configJsonRoot["IP Version"] = 6;
-    config.configJsonRoot["Listen Port"] = 9010;
+    config.configJsonRoot["IP"] = "::";
+    config.configJsonRoot["Port"] = 9010;
     config.configJsonRoot["LogLevel"] = 1;
     config.configJsonRoot["LogfileName"] = "Chattering.log";
     config.configJsonRoot["LogfileSize"] = UINT32_MAX;
@@ -30,8 +31,10 @@ ConfigManager::Config ConfigManager::load() {
     if (config.ipVersion != 4 && config.ipVersion != 6)
       throw std::runtime_error("Invalid IP Version.");
 
-    config.listenPort = config.configJsonRoot["Listen Port"].asInt();
-    if (config.listenPort < 0 || config.listenPort > 65535)
+    config.IP = config.configJsonRoot["IP"].asCString();
+
+    config.Port = config.configJsonRoot["Port"].asInt();
+    if (config.Port < 0 || config.Port > 65535)
       throw std::runtime_error("Invalid listen port.");
 
     int ll_ = config.configJsonRoot["LogLevel"].asInt();

impl/Socket/IOCP.cpp

@@ -5,7 +5,24 @@
 
 namespace Chattr {
 
-void IOCP::registerSocket(Chattr::IOCPPASSINDATA* data) {
+IOCP::IOCP() {
+
+}
+
+IOCP::~IOCP() {
+	destruct();
+}
+
+void IOCP::destruct() {
+#ifdef __linux__
+	uint64_t u = 1;
+	::write(epollDetroyerFd, &u, sizeof(uint64_t));
+	close(epollfd_);
+#endif
+}
+
+void IOCP::registerSocket(IOCPPASSINDATA* data) {
+	data->event = IOCPEVENT::READ;
 #ifdef _WIN32
 	HANDLE returnData = ::CreateIoCompletionPort((HANDLE)data->socket->sock, completionPort_, data->socket->sock, 0);
 	if (returnData == 0)
@@ -17,6 +34,7 @@ void IOCP::registerSocket(Chattr::IOCPPASSINDATA* data) {
 
 	struct epoll_event ev;
 	ev.events = EPOLLIN | EPOLLONESHOT;
+	data->sendQueue = std::make_shared<std::queue<IOCPPASSINDATA*>>();
 	ev.data.ptr = data;
 	int rc = epoll_ctl(epollfd_, EPOLL_CTL_ADD, data->socket->sock, &ev);
 	if (rc < 0)
@@ -37,15 +55,16 @@ int IOCP::recv(Chattr::IOCPPASSINDATA* data, int bufferCount) {
 #endif
 }
 
-int IOCP::send(Chattr::IOCPPASSINDATA* data, int bufferCount, int __flags) {
+int IOCP::send(Chattr::IOCPPASSINDATA* data, int bufferCount, int __flags) { //TCPSocket의 소유권 확인하기. 어디선가 예상치 못하게 socket이 close되었음
 	data->event = IOCPEVENT::WRITE;
 #ifdef _WIN32
 	DWORD sendbytes = 0;
 	return ::WSASend(data->socket->sock, &data->wsabuf, bufferCount, &sendbytes, __flags, &data->overlapped, NULL);
 #elif __linux__
 	struct epoll_event ev;
-	ev.events = EPOLLOUT | EPOLLONESHOT;
+	ev.events = EPOLLIN | EPOLLOUT | EPOLLONESHOT;
 	ev.data.ptr = data;
+	data->sendQueue->push(data);
 	return ::epoll_ctl(epollfd_, EPOLL_CTL_MOD, data->socket->sock, &ev);
 #endif
 }

impl/Socket/Log.cpp

@@ -10,18 +10,6 @@
 
 namespace Chattr::log {
 
-void setDefaultLogger(spdlog::level::level_enum logLevel, gsl::czstring logFileName, std::uint32_t logFileSize, std::uint32_t logFileCount) {
-    std::vector<spdlog::sink_ptr> sinks;
-    sinks.push_back(std::make_shared<spdlog::sinks::stdout_color_sink_mt>());
-    sinks.push_back(std::make_shared<spdlog::sinks::rotating_file_sink_mt>(logFileName, logFileSize, logFileCount, false));
-#ifdef _WIN32
-    sinks.push_back(std::make_shared<spdlog::sinks::msvc_sink_mt>());
-#endif
-    auto chatteringLogger = std::make_shared<spdlog::logger>("Chattering Logger", begin(sinks), end(sinks));
-    chatteringLogger->set_level(logLevel);
-    spdlog::set_default_logger(chatteringLogger);
-}
-
 void critical(gsl::czstring msg) {
 #ifdef _WIN32
     LPSTR msgbuf = nullptr;

impl/Socket/TCPSocket.cpp

@@ -32,8 +32,11 @@ int TCPSocket::connect(Address& serveraddr) {
 
 int TCPSocket::recv(void *__restrict __buf, size_t __n, int __flags) {
     int retVal = ::recv(sock, (char *)__buf, __n, __flags);
-    if (retVal == SOCKET_ERROR)
+    if (retVal == SOCKET_ERROR) {
+        if (errno == EAGAIN || errno == EWOULDBLOCK)
+            return retVal;
         log::error("recv()");
+    }
     return retVal;
 }
 

impl/Utils/GenerateID.cpp

@@ -3,25 +3,28 @@
 namespace Chattr {
 
 Snowflake GenerateID() {
-    static struct _EPOCH {
-        _EPOCH() {
+    static struct EpochInitializer {
+        EpochInitializer() {
             EPOCH = std::chrono::system_clock::now();
         }
         std::chrono::system_clock::time_point EPOCH;
-    } __EPOCH__;
+    } epochInitializer;
     
     static std::mutex snowflakeGenerateMutex_;
 
     std::lock_guard<std::mutex> lock(snowflakeGenerateMutex_);
-#ifdef _WIN32
-    DWORD tid = GetCurrentThreadId();
-#elif __linux__
-    pthread_t tid = pthread_self();
-#endif
-    static int sequence = 0;
+
+    std::size_t tid;
+    #ifdef _WIN32
+        tid = static_cast<std::size_t>(GetCurrentThreadId());
+    #elif __linux__
+        tid = static_cast<std::size_t>(pthread_self());
+    #endif
+
+    thread_local static int sequence = 0;
     Snowflake id = {};
 
-    auto timestamp = std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now() - __EPOCH__.EPOCH);
+    auto timestamp = std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now() - epochInitializer.EPOCH);
     id.timestamp = timestamp.count();
     id.instance = tid;
     id.sequence = sequence++;

include/Packet/Packet.hpp

@@ -12,6 +12,7 @@ enum class PacketSet {
     ROOMJOINREQUEST,
     ROOMEXITREQUEST,
     USERSLISTREQUEST,
+    ROOMUSERSLISTREQUEST,
     DATAPOST,
     CONTINUE,
     RESPONSE,
@@ -21,6 +22,7 @@ enum class PacketSet {
     ROOMJOINRESPONSE,
     ROOMEXITRESPONSE,
     USERSLISTRESPONSE,
+    ROOMUSERSLISTRESPONSE,
     INVALID
 };
 
@@ -38,6 +40,7 @@ enum class RequestType : std::uint8_t {
     ROOM_JOIN,
     ROOM_EXIT,
     USERS_LIST,
+    ROOM_USERS_LIST,
     DATA
 };
 
@@ -84,29 +87,93 @@ public:
             RequestType         requestType;
             DataType            dataType;
             std::uint16_t       packetLength;
-            std::uint16_t       destId[4];
+            std::uint16_t       myId[4];
+            std::uint16_t       roomId[4];
             std::uint8_t        name[];
         } __data;
         std::uint8_t serialized[1500] = "";
     };
     std::uint8_t* convToN() {
         __data.packetLength = ::htons(__data.packetLength);
-        for (int i = 0; i < 4; i++)
-            __data.destId[i] = ::htons(__data.destId[i]);
+        for (int i = 0; i < 4; i++) {
+            __data.myId[i] = ::htons(__data.myId[i]);
+            __data.roomId[i] = ::htons(__data.roomId[i]);
+        }
         return serialized;
     }
     std::uint8_t* convToH() {
         __data.packetLength = ::ntohs(__data.packetLength);
-        for (int i = 0; i < 4; i++)
-            __data.destId[i] = ::ntohs(__data.destId[i]);
+        for (int i = 0; i < 4; i++) {
+            __data.myId[i] = ::ntohs(__data.myId[i]);
+            __data.roomId[i] = ::ntohs(__data.roomId[i]);
+        }
         return serialized;
     }
 };
 
-class alignas(4) RoomExitRequestPacket : public Packet {};
+class alignas(4) RoomExitRequestPacket : public Packet {
+public:
+    union {
+        struct {
+            PacketCategory      packetType;
+            RequestType         requestType;
+            DataType            dataType;
+            std::uint16_t       packetLength;
+            std::uint16_t       myId[4];
+            std::uint16_t       roomId[4];
+            std::uint8_t        name[];
+        } __data;
+        std::uint8_t serialized[1500] = "";
+    };
+    std::uint8_t* convToN() {
+        __data.packetLength = ::htons(__data.packetLength);
+        for (int i = 0; i < 4; i++) {
+            __data.myId[i] = ::htons(__data.myId[i]);
+            __data.roomId[i] = ::htons(__data.roomId[i]);
+        }
+        return serialized;
+    }
+    std::uint8_t* convToH() {
+        __data.packetLength = ::ntohs(__data.packetLength);
+        for (int i = 0; i < 4; i++) {
+            __data.myId[i] = ::ntohs(__data.myId[i]);
+            __data.roomId[i] = ::ntohs(__data.roomId[i]);
+        }
+        return serialized;
+    }
+};
 
 class alignas(4) UsersListRequestPacket : public Packet {};
 
+class alignas(4) RoomUsersListRequestPacket : public Packet {
+public:
+    union {
+        struct {
+            PacketCategory      packetType;
+            RequestType         requestType;
+            DataType            dataType;
+            std::uint16_t       packetLength;
+            std::uint16_t       roomId[4];
+            std::uint8_t        data[];
+        } __data;
+        std::uint8_t serialized[1500] = "";
+    };
+    std::uint8_t* convToN() {
+        __data.packetLength = ::htons(__data.packetLength);
+        for (int i = 0; i < 4; i++) {
+            __data.roomId[i] = ::htons(__data.roomId[i]);
+        }
+        return serialized;
+    }
+    std::uint8_t* convToH() {
+        __data.packetLength = ::ntohs(__data.packetLength);
+        for (int i = 0; i < 4; i++) {
+            __data.roomId[i] = ::ntohs(__data.roomId[i]);
+        }
+        return serialized;
+    }
+};
+
 class alignas(4) DataPostPacket : public Packet {
 public:
     union {
@@ -115,6 +182,7 @@ public:
             RequestType         requestType;
             DataType            dataType;
             std::uint16_t       packetLength;
+            std::uint16_t       sourceId[4];
             std::uint16_t       destId[4];
             std::uint8_t        data[];
         } __data;
@@ -122,14 +190,18 @@ public:
     };
     std::uint8_t* convToN() {
         __data.packetLength = ::htons(__data.packetLength);
-        for (int i = 0; i < 4; i++)
+        for (int i = 0; i < 4; i++) {
+            __data.sourceId[i] = ::htons(__data.sourceId[i]);
             __data.destId[i] = ::htons(__data.destId[i]);
+        }
         return serialized;
     }
     std::uint8_t* convToH() {
         __data.packetLength = ::ntohs(__data.packetLength);
-        for (int i = 0; i < 4; i++)
+        for (int i = 0; i < 4; i++) {
+            __data.sourceId[i] = ::ntohs(__data.sourceId[i]);
             __data.destId[i] = ::ntohs(__data.destId[i]);
+        }
         return serialized;
     }
 };
@@ -162,7 +234,7 @@ public:
 };
 
 enum class ResponseStatusCode : std::uint16_t {
-    OK = 200,
+    RES_OK = 200,
     CREATED = 201,
     ACCEPTED = 202,
     BAD_REQUEST = 400,

include/Socket/IOCP.hpp

@@ -6,10 +6,11 @@
 #include "Packet/Packet.hpp"
 #include <functional>
 #include <vector>
+#include <queue>
 
 #include "precomp.hpp"
 
-#ifndef _WIN32
+#ifdef __linux__
 
 typedef struct _OVERLAPPED {
     char dummy;
@@ -27,7 +28,7 @@ namespace Chattr {
 class IOCP;
 
 enum class IOCPEVENT {
-    ERR,
+    QUIT,
     READ,
     WRITE
 };
@@ -42,6 +43,60 @@ struct IOCPPASSINDATA {
     std::uint32_t transferredbytes;
     WSABUF wsabuf;
     IOCP* IOCPInstance;
+#ifdef __linux__
+    std::shared_ptr<std::queue<IOCPPASSINDATA*>> sendQueue;
+#endif
+
+    IOCPPASSINDATA() {
+        std::memset(&overlapped, 0, sizeof(overlapped));
+        event = IOCPEVENT::QUIT;
+        socket = nullptr;
+        recvbytes = 0;
+        sendbytes = 0;
+        transferredbytes = 0;
+        wsabuf.len = 1500;
+        wsabuf.buf = this->buf;
+        IOCPInstance = nullptr;
+    }
+    IOCPPASSINDATA(const IOCPPASSINDATA& other)
+        : event(other.event),
+          socket(other.socket),
+          transferredbytes(other.transferredbytes),
+          wsabuf(other.wsabuf),
+          IOCPInstance(other.IOCPInstance)
+#ifdef __linux__
+        , sendQueue(other.sendQueue)
+#endif
+    {
+        recvbytes = 0;
+        sendbytes = 0;
+        wsabuf.buf = this->buf;
+        // buf는 memcpy로 복사
+        std::memcpy(buf, other.buf, sizeof(buf));
+        // overlapped는 0으로 초기화 (복사하면 안 됨)
+        std::memset(&overlapped, 0, sizeof(overlapped));
+    }
+    
+    ~IOCPPASSINDATA() = default;
+
+    // 복사 대입 연산자
+    IOCPPASSINDATA& operator=(const IOCPPASSINDATA& other) {
+        if (this != &other) {
+            event = other.event;
+            socket = other.socket;
+            recvbytes = 0;
+            sendbytes = 0;
+            transferredbytes = other.transferredbytes;
+            wsabuf.buf = this->buf;
+            IOCPInstance = other.IOCPInstance;
+#ifdef __linux__
+            sendQueue = other.sendQueue;
+#endif
+            std::memcpy(buf, other.buf, sizeof(buf));
+            std::memset(&overlapped, 0, sizeof(overlapped));
+        }
+        return *this;
+    }
 };
 
 class IOCP {
@@ -55,9 +110,11 @@ public:
         DWORD cbTransfrred;
         int retVal = GetQueuedCompletionStatus(completionPort_, &cbTransfrred, (PULONG_PTR)&sock, (LPOVERLAPPED*)&data, INFINITE);
         if (retVal == 0 || cbTransfrred == 0) {
-            spdlog::debug("Client disconnected. [{}]", (std::string)(data->socket->remoteAddr));
-            delete data;
+            data->event = IOCPEVENT::QUIT;
+            spdlog::debug("Disconnected. [{}]", (std::string)(data->socket->remoteAddr));
+            threadPool->enqueueJob(callback, data);
             threadPool->enqueueJob(iocpWather, completionPort_, callback);
+            // delete data;
             return;
         }
         data->transferredbytes = cbTransfrred;
@@ -66,117 +123,166 @@ public:
     };
 #elif __linux__
     static void socketReader(ThreadPool* threadPool, epoll_event event, int epollfd, std::function<void(ThreadPool*, IOCPPASSINDATA*)> callback) {
-        IOCPPASSINDATA* iocpData = (IOCPPASSINDATA*)event.data.ptr;
-        
         pthread_t tid = pthread_self();
 
-        if (iocpData == nullptr) {
+        if (event.data.ptr == nullptr) {
             spdlog::error("invalid call on {}", tid);
             return;
         }
+        
+        IOCPPASSINDATA* rootIocpData = (IOCPPASSINDATA*)event.data.ptr;
 
-        std::lock_guard<std::mutex> lock(iocpData->socket->readMutex);
-
-        spdlog::trace("reading on tid: {} [{}]", tid, (std::string)iocpData->socket->remoteAddr);
-
-        int redSize = 0;
-        int headerSize = 8;
-        int totalRedSize = 0;
-
-        while (totalRedSize < headerSize) {
-            redSize = iocpData->socket->recv(iocpData->buf, headerSize - totalRedSize, 0);
-            
-            if (redSize <= 0) {
+        std::lock_guard<std::mutex> lock(rootIocpData->socket->readMutex);
+        while (true) {
+            char peekBuffer[1];
+            int rc = rootIocpData->socket->recv(peekBuffer, 1, MSG_PEEK);
+            if (rc > 0);
+            else if (rc == 0) {
+                rootIocpData->event = IOCPEVENT::QUIT;
+                spdlog::debug("Disconnected. [{}]", (std::string)(rootIocpData->socket->remoteAddr));
+                ::epoll_ctl(epollfd, EPOLL_CTL_DEL, rootIocpData->socket->sock, NULL);
+                threadPool->enqueueJob(callback, rootIocpData);
+                // delete rootIocpData;
+                return;
+            }
+            else {
                 if (errno == EAGAIN || errno == EWOULDBLOCK) {
-                    spdlog::trace("{}", strerror(errno));
-                    break;
-                } else {
-                    spdlog::debug("Client disconnected. [{}]", (std::string)iocpData->socket->remoteAddr);
-                    ::epoll_ctl(epollfd, EPOLL_CTL_DEL, iocpData->socket->sock, NULL);
-                    delete iocpData;
+                    spdlog::trace("No data to read on {}", tid);
                     return;
                 }
-                
-            }
-            totalRedSize += redSize;
-        }
-
-        Packet packet;
-        ::memcpy(&packet.serialized, iocpData->buf, headerSize);
-
-        redSize = 0;
-        int dataLength = ntohs(packet.__data.packetLength);
-
-        while (totalRedSize < dataLength + headerSize) {
-            redSize = iocpData->socket->recv(iocpData->buf + totalRedSize, dataLength + headerSize - totalRedSize, 0);
-            
-            if (redSize <= 0) {
-                if (errno == EAGAIN || errno == EWOULDBLOCK) {
-                    spdlog::trace("{}", strerror(errno));
-                    break;
-                } else {
-                    spdlog::debug("Client disconnected. [{}]", (std::string)iocpData->socket->remoteAddr);
-                    ::epoll_ctl(epollfd, EPOLL_CTL_DEL, iocpData->socket->sock, NULL);
-                    delete iocpData;
+                else {
+                    rootIocpData->event = IOCPEVENT::QUIT;
+                    spdlog::debug("Disconnected. [{}]", (std::string)(rootIocpData->socket->remoteAddr));
+                    ::epoll_ctl(epollfd, EPOLL_CTL_DEL, rootIocpData->socket->sock, NULL);
+                    threadPool->enqueueJob(callback, rootIocpData);
+                    // delete rootIocpData;
                     return;
                 }
-                
             }
-            totalRedSize += redSize;
+            Chattr::IOCPPASSINDATA* ptr = new Chattr::IOCPPASSINDATA(*rootIocpData);
+            ptr->wsabuf.len = 1500;
+
+            int redSize = 0;
+            int headerSize = 8;
+            int totalRedSize = 0;
+
+            while (totalRedSize < headerSize) {
+                redSize = ptr->socket->recv(ptr->buf + totalRedSize, headerSize - totalRedSize, 0);
+                
+                if (redSize == SOCKET_ERROR) {
+                    ptr->event = IOCPEVENT::QUIT;
+                    spdlog::debug("Disconnected. [{}]", (std::string)(ptr->socket->remoteAddr));
+                    ::epoll_ctl(epollfd, EPOLL_CTL_DEL, ptr->socket->sock, NULL);
+                    threadPool->enqueueJob(callback, ptr);
+                    // delete ptr;
+                    return;
+                }
+                else if (redSize == 0) {
+                    ptr->event = IOCPEVENT::QUIT;
+                    spdlog::debug("Disconnected. [{}]", (std::string)(ptr->socket->remoteAddr));
+                    ::epoll_ctl(epollfd, EPOLL_CTL_DEL, ptr->socket->sock, NULL);
+                    threadPool->enqueueJob(callback, ptr);
+                    // delete ptr;
+                    return;
+                }
+                totalRedSize += redSize;
+            }
+
+            Packet packet;
+            ::memcpy(packet.serialized, ptr->buf, headerSize);
+
+            redSize = 0;
+            int dataLength = ntohs(packet.__data.packetLength);
+
+            while (totalRedSize < dataLength + headerSize) {
+                redSize = ptr->socket->recv(ptr->buf + totalRedSize, dataLength + headerSize - totalRedSize, 0);
+                
+                if (redSize == SOCKET_ERROR) {
+                    if (errno == EAGAIN || errno == EWOULDBLOCK) {
+                        spdlog::trace("No data to read on {}", tid);
+                        return;
+                    }
+                    ptr->event = IOCPEVENT::QUIT;
+                    spdlog::debug("Disconnected. [{}]", (std::string)(ptr->socket->remoteAddr));
+                    ::epoll_ctl(epollfd, EPOLL_CTL_DEL, ptr->socket->sock, NULL);
+                    threadPool->enqueueJob(callback, ptr);
+                    // delete ptr;
+                    return;
+                }
+                else if (redSize == 0) {
+                    ptr->event = IOCPEVENT::QUIT;
+                    spdlog::debug("Disconnected. [{}]", (std::string)(ptr->socket->remoteAddr));
+                    ::epoll_ctl(epollfd, EPOLL_CTL_DEL, ptr->socket->sock, NULL);
+                    threadPool->enqueueJob(callback, ptr);
+                    // delete ptr;
+                    return;
+                }
+                totalRedSize += redSize;
+            }
+            ptr->transferredbytes = totalRedSize;
+            threadPool->enqueueJob(callback, ptr);
         }
-        iocpData->transferredbytes = totalRedSize;
-        threadPool->enqueueJob(callback, iocpData);
     };
     static void socketWriter(ThreadPool* threadPool, epoll_event event, int epollfd, std::function<void(ThreadPool*, IOCPPASSINDATA*)> callback) {
-        IOCPPASSINDATA* iocpData = (IOCPPASSINDATA*)event.data.ptr;
-        
         pthread_t tid = pthread_self();
 
-        if (iocpData == nullptr) {
+        if (event.data.ptr == nullptr) {
             spdlog::error("invalid call on {}", tid);
             return;
         }
+        
+        IOCPPASSINDATA* rootIocpData = (IOCPPASSINDATA*)event.data.ptr;
 
-        std::lock_guard<std::mutex> lock(iocpData->socket->writeMutex);
+        std::lock_guard<std::mutex> lock(rootIocpData->socket->writeMutex);
+        while (!rootIocpData->sendQueue->empty()) {
+            IOCPPASSINDATA* data = rootIocpData->sendQueue->front();
+            rootIocpData->sendQueue->pop();
 
-        spdlog::trace("Writing on tid: {} [{}]", tid, (std::string)iocpData->socket->remoteAddr);
+            if (data == nullptr) {
+                spdlog::error("invalid call on {}", tid);
+                break;
+            }
 
-        int packetSize = iocpData->transferredbytes;
-        int totalSentSize = 0;
-        int sentSize = 0;
+            int packetSize = data->wsabuf.len;
+            int totalSentSize = 0;
+            int sentSize = 0;
 
-        spdlog::trace("Sending to: [{}]", (std::string)iocpData->socket->remoteAddr);
+            spdlog::trace("Sending to: [{}]", (std::string)data->socket->remoteAddr);
 
-        while (totalSentSize < packetSize) {
-            sentSize = iocpData->socket->send(iocpData->buf, packetSize - totalSentSize, 0);
+            while (totalSentSize < packetSize) {
+                sentSize = data->socket->send(data->buf + totalSentSize, packetSize - totalSentSize, 0);
 
-            if (sentSize <= 0) {
-                if (errno == EAGAIN || errno == EWOULDBLOCK) {
-                    spdlog::trace("{}", strerror(errno));
-                    break;
-                } else {
-                    spdlog::debug("Client disconnected. [{}]", (std::string)iocpData->socket->remoteAddr);
-                    ::epoll_ctl(epollfd, EPOLL_CTL_DEL, iocpData->socket->sock, NULL);
-                    delete iocpData;
+                if (sentSize == SOCKET_ERROR) {
+                    if (errno == EAGAIN || errno == EWOULDBLOCK) {
+                        spdlog::warn("buffer full");
+                        continue;
+                    }
+                    data->event = IOCPEVENT::QUIT;
+                    spdlog::debug("Disconnected. [{}]", (std::string)(data->socket->remoteAddr));
+                    ::epoll_ctl(epollfd, EPOLL_CTL_DEL, data->socket->sock, NULL);
+                    threadPool->enqueueJob(callback, data);
+                    // delete data;
                     return;
                 }
+                totalSentSize += sentSize;
             }
-            totalSentSize += sentSize;
+            data->transferredbytes = totalSentSize;
+            threadPool->enqueueJob(callback, data);
         }
-        iocpData->transferredbytes = totalSentSize;
-        threadPool->enqueueJob(callback, iocpData);
     };
-    static void iocpWatcher(ThreadPool* threadPool, int epollfd, std::function<void(ThreadPool*, IOCPPASSINDATA*)> callback) {
+    static void iocpWatcher(ThreadPool* threadPool, int epollfd, int epollDetroyerFd, std::function<void(ThreadPool*, IOCPPASSINDATA*)> callback) {
         struct epoll_event events[FD_SETSIZE];
         pthread_t tid = pthread_self();
 
-        spdlog::trace("epoll waiting on {}", tid);
         int nready = ::epoll_wait(epollfd, events, FD_SETSIZE, -1);
 
         for (int i=0; i<nready; i++) {
             struct epoll_event current_event = events[i];
 
             if (current_event.events & EPOLLIN) {
+                if (current_event.data.fd == epollDetroyerFd) {
+                    return;
+                }
                 std::function<void(ThreadPool*, IOCPPASSINDATA*)> task(callback);
                 threadPool->enqueueJob(socketReader, current_event, epollfd, task);
             }
@@ -184,11 +290,16 @@ public:
                 std::function<void(ThreadPool*, IOCPPASSINDATA*)> task(callback);
                 threadPool->enqueueJob(socketWriter, current_event, epollfd, task);
             }
+            if (--nready <= 0)
+                break;
         }
-        threadPool->enqueueJob(iocpWatcher, epollfd, callback);
+        threadPool->enqueueJob(iocpWatcher, epollfd, epollDetroyerFd, callback);
     };
 #endif
 
+    IOCP();
+    ~IOCP();
+
     template<typename _Callable>
     void init(ThreadPool* __IOCPThread, _Callable&& callback) {
         IOCPThread_ = __IOCPThread;
@@ -198,6 +309,11 @@ public:
             log::critical("CreateIoCompletionPort()");
 #elif __linux__
         epollfd_ = ::epoll_create(1);
+        epollDetroyerFd = ::eventfd(0, EFD_NONBLOCK);
+        struct epoll_event ev;
+        ev.events = EPOLLIN;
+        ev.data.fd = epollDetroyerFd;
+        ::epoll_ctl(epollfd_, EPOLL_CTL_ADD, epollDetroyerFd, &ev);
 #endif
         auto boundFunc = [callback = std::move(callback)](ThreadPool* __IOCPThread, IOCPPASSINDATA* data) mutable {
             callback(__IOCPThread, data);
@@ -215,24 +331,33 @@ public:
             __IOCPThread->enqueueJob(iocpWather, completionPort_, task);
         }
 #elif __linux__
+        __IOCPThread->respawnWorker(__IOCPThread->threadCount + 1);
         spdlog::info("Spawning 1 Epoll Waiter...");
-        __IOCPThread->enqueueJob(iocpWatcher, epollfd_, boundFunc);
+        __IOCPThread->enqueueJob(iocpWatcher, epollfd_, epollDetroyerFd, boundFunc);
 #endif
     }
 
-    void registerSocket(Chattr::IOCPPASSINDATA* data);
+    void destruct();
 
-    int recv(Chattr::IOCPPASSINDATA* data, int bufferCount);
-    int send(Chattr::IOCPPASSINDATA* data, int bufferCount, int __flags);
+    void registerSocket(IOCPPASSINDATA* data);
+
+    int recv(IOCPPASSINDATA* data, int bufferCount);
+    int send(IOCPPASSINDATA* data, int bufferCount, int __flags);
+
+#ifdef __linux__
+    int epollDetroyerFd = -1;
+#endif
 
 private:
-    struct Chattr::WSAManager wsaManager;
+    struct WSAManager wsaManager;
     ThreadPool* IOCPThread_;
 
 #ifdef _WIN32
     HANDLE completionPort_ = INVALID_HANDLE_VALUE;
 #elif __linux__
     int epollfd_ = -1;
+    std::unordered_map<std::shared_ptr<TCPSocket>, std::mutex> writeMutex;
+    std::unordered_map<std::shared_ptr<TCPSocket>, std::queue<IOCPPASSINDATA*>> writeBuffer;
 #endif
 };
 

include/Utils/ConfigManager.hpp

@@ -7,7 +7,8 @@ public:
   struct Config {
     Json::Value configJsonRoot;
     std::uint32_t ipVersion = 0;
-    std::uint32_t listenPort = 0;
+    gsl::czstring IP = "";
+    std::uint32_t Port = 0;
     spdlog::level::level_enum logLevel = spdlog::level::off;
     gsl::czstring logFileName = "";
     std::uint32_t logfileSize = 0;

include/precomp.hpp

@@ -15,6 +15,7 @@
 #include <fcntl.h>
 #include <errno.h>
 #include <netinet/in.h>
+#include <sys/eventfd.h>
 #define SOCKET int
 #define INVALID_SOCKET -1
 #define SOCKET_ERROR -1