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/* |
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** EPITECH PROJECT, 2024 |
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** zappy/ai/client |
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** File description: |
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** Client.cpp |
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*/ |
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#include "Client.hpp" |
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Client::Client(const std::string &host, const std::string &teamName, int port) |
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: _host(host), _teamName(teamName), _port(port) |
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{ |
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setupConnection(); |
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} |
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Client::~Client() |
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{ |
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close(_sockfd); |
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} |
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void Client::run() |
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{ |
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printColor("Run client\n\n", BRIGHT_BLUE); |
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authenticate(); |
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loop(); |
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} |
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void Client::setupConnection() |
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{ |
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_sockfd = socket(AF_INET, SOCK_STREAM, 0); |
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if (_sockfd < 0) |
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{ |
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perror("Socket creation failed"); |
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exit(EXIT_FAILURE); |
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} |
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struct sockaddr_in serv_addr; |
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serv_addr.sin_family = AF_INET; |
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serv_addr.sin_port = htons(_port); |
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if (inet_pton(AF_INET, _host.c_str(), &serv_addr.sin_addr) <= 0) |
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{ |
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perror("Invalid address or address not supported"); |
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exit(EXIT_FAILURE); |
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} |
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if (connect(_sockfd, (struct sockaddr *)&serv_addr, sizeof(serv_addr)) < 0) |
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{ |
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perror("Connection failed"); |
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exit(EXIT_FAILURE); |
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} |
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else |
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printColor("🚀✅ Connected to server: " + _host + ":" + std::to_string(_port) + " on team: " + _teamName + "\n", BRIGHT_BLUE); |
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} |
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void Client::authenticate() |
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{ |
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std::string buffer; |
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Message _message; |
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unsigned int timeToGetIdentity = 0; |
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std::string askForIdentity = ""; |
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// To pass the first message WELCOME |
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recvMessage(buffer); |
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// Ask two time for identity |
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_message.format("I'm_searching_my_identity"); |
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askForIdentity = "Broadcast " + _message.content; |
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sendMessage(_teamName); |
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sendMessage(askForIdentity); |
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sendMessage(askForIdentity); |
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_message.content = ""; |
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auto condition = [&]() |
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{ return timeToGetIdentity < 3; }; |
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auto action = [&]() |
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{ |
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std::string response; |
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recvMessage(response); |
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if (response.find("ko") != std::string::npos) |
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{ |
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PRINT_ERROR("Authentication failed: verify teamName"); |
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close(_sockfd); |
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exit(EXIT_FAILURE); |
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} |
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if (response.find("message") != std::string::npos) |
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{ |
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_message.content = response; |
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_message.vigenereDecrypt(); |
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return; |
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} |
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timeToGetIdentity++; |
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_messageToReadBeforeStart--; |
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}; |
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interactWithServer(condition, action); |
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try |
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{ |
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initBot(_message.content); |
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} |
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catch (const ClientException &e) |
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{ |
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PRINT_ERROR(e.what()); |
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close(_sockfd); |
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exit(EXIT_FAILURE); |
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} |
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} |
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void Client::initBot(const std::string identityMessage) |
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{ |
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unsigned int id = 0; |
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unsigned int currentMessageId = 0; |
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if (!identityMessage.empty()) |
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{ |
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std::cout << "identityMessage: " << identityMessage << std::endl; |
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std::string job = ""; |
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std::string prefixId = "you_are_bot="; |
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std::string prefixJob = "your_job="; |
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std::string prefixCurrentMessageId = "currentMessageId="; |
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size_t pos = identityMessage.find(prefixId); |
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size_t posJob = identityMessage.find(prefixJob); |
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size_t posCurrentMessageId = identityMessage.find(prefixCurrentMessageId); |
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if (pos != std::string::npos) |
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{ |
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std::string idStr = identityMessage.substr(pos + prefixId.size()); |
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id = std::stoi(idStr); |
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} |
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if (posCurrentMessageId != std::string::npos) |
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{ |
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std::string currentMessageIdStr = identityMessage.substr(posCurrentMessageId + prefixCurrentMessageId.size()); |
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currentMessageId = std::stoi(currentMessageIdStr); |
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} |
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if (posJob != std::string::npos) |
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{ |
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job = identityMessage.substr(posJob + prefixJob.size()); |
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if (job.find("SIMPLE_BOT") != std::string::npos) |
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_bot = BotFactory::createBot("SimpleBot"); |
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} |
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else |
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{ |
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_bot = BotFactory::createBot("SimpleBot"); |
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} |
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} |
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else |
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{ |
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_bot = BotFactory::createBot("SimpleBot"); // TODO: is forker normally |
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if (_bot == nullptr) |
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throw ClientException("BotFactory failed"); |
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} |
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if (_bot != nullptr) |
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{ |
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_bot->init(_sockfd, _teamName, _host, _port, id, currentMessageId); |
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} |
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else |
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{ |
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throw ClientException("Bot is null"); |
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} |
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} |
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void Client::sendMessage(const std::string &message) |
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{ |
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std::string messageToSend = message + "\n"; |
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send(_sockfd, messageToSend.c_str(), messageToSend.size(), 0); |
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} |
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void Client::loop() |
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{ |
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// clear messsages of servers before start |
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auto condition = [&]() |
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{ return _messageToReadBeforeStart > 0; }; |
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auto action = [&]() |
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{ |
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std::string response; |
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recvMessage(response); |
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_messageToReadBeforeStart--; |
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}; |
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interactWithServer(condition, action); |
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_bot->run("start"); |
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auto conditionStart = [&]() |
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{ return true; }; |
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auto actionStart = [&]() |
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{ |
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std::string response; |
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recvMessage(response); |
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_bot->run(response); |
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}; |
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interactWithServer(conditionStart, actionStart); |
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} |
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void Client::recvMessage(std::string &buffer) |
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{ |
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char recvBuffer[1024] = {0}; |
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int valread = read(_sockfd, recvBuffer, 1024); |
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if (valread < 0) |
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{ |
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PRINT_ERROR("Read failed"); |
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close(_sockfd); |
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exit(FAILURE); |
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} |
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else if (valread == 0) |
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{ |
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PRINT_ERROR("Server closed the connection"); |
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close(_sockfd); |
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exit(FAILURE); |
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} |
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buffer = std::string(recvBuffer, valread); |
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} |
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template <typename ConditionFunc, typename ActionFunc> |
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void Client::interactWithServer(ConditionFunc condition, ActionFunc action) |
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{ |
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while (condition()) |
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{ |
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FD_ZERO(&_readfds); |
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FD_SET(_sockfd, &_readfds); |
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_tv.tv_sec = 0; |
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_tv.tv_usec = 10000; |
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int activity = select(_sockfd + 1, &_readfds, NULL, NULL, &_tv); |
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if (activity > 0 && FD_ISSET(_sockfd, &_readfds)) |
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action(); |
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} |
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} |
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