#pragma once #include #include /** Server provides three interfaces: * 1. HTTP - simple interface for any applications. * 2. TCP - interface for native clickhouse-client and for server to server internal communications. * More rich and efficient, but less compatible * - data is transferred by columns; * - data is transferred compressed; * Allows to get more information in response. * 3. Interserver HTTP - for replication. */ namespace Poco { namespace Net { class ServerSocket; } } namespace DB { class Server : public BaseDaemon, public IServer { public: using ServerApplication::run; Poco::Util::LayeredConfiguration & config() const override { return BaseDaemon::config(); } Poco::Logger & logger() const override { return BaseDaemon::logger(); } ContextPtr context() const override { return global_context; } bool isCancelled() const override { return BaseDaemon::isCancelled(); } void defineOptions(Poco::Util::OptionSet & _options) override; protected: int run() override; void initialize(Application & self) override; void uninitialize() override; int main(const std::vector & args) override; std::string getDefaultCorePath() const override; private: ContextPtr global_context; Poco::Net::SocketAddress socketBindListen(Poco::Net::ServerSocket & socket, const std::string & host, UInt16 port, [[maybe_unused]] bool secure = false) const; using CreateServerFunc = std::function; void createServer(const std::string & listen_host, const char * port_name, bool listen_try, CreateServerFunc && func) const; }; }