Add better implementation of tcp console

src/slic3r/Utils/TCPConsole.hpp

@@ -0,0 +1,81 @@
+#ifndef slic3r_Utils_TCPConsole_hpp_
+#define slic3r_Utils_TCPConsole_hpp_
+
+#include <string>
+#include <list>
+#include <boost/system/error_code.hpp>
+#include <boost/asio/ip/tcp.hpp>
+#include <boost/asio/streambuf.hpp>
+
+namespace Slic3r {
+namespace Utils {
+
+const char * default_newline = "\n";
+const char * default_done_string = "ok";
+
+using boost::asio::ip::tcp;
+
+class TCPConsole
+{
+public:
+  TCPConsole(): resolver_(io_context_), socket_(io_context_), newline_(default_newline), done_string_(default_done_string) {}
+
+  TCPConsole(const std::string &host_name, const std::string &port_name):
+    resolver_(io_context_), socket_(io_context_), newline_(default_newline), done_string_(default_done_string)
+  {
+    set_remote(host_name, port_name);
+  }
+  ~TCPConsole(){}
+
+  void set_line_delimiter(const std::string &newline) {
+    newline_ = newline;
+  }
+  void set_command_done_string(const std::string &done_string) {
+    done_string_ = done_string;
+  }
+
+  void set_remote(const std::string &host_name, const std::string &port_name)
+  {
+    host_name_ = host_name;
+    port_name_ = port_name;
+  }
+
+  bool enqueue_cmd(const std::string &cmd) {
+    // TODO: Add multithread protection to queue
+    cmd_queue_.push_back(cmd);
+    return true;
+  }
+
+  bool run_queue();
+  std::string error_message() {
+    return error_code_.message();
+  }
+
+private:
+  void handle_connect(const boost::system::error_code& ec);
+  void handle_read(const boost::system::error_code& ec, std::size_t bytes_transferred);
+  void handle_write(const boost::system::error_code& ec, std::size_t bytes_transferred);
+
+  void transmit_next_command();
+  void wait_next_line();
+  std::string extract_next_line();
+
+  std::string host_name_;
+  std::string port_name_;
+  std::string newline_;
+  std::string done_string_;
+
+  std::list<std::string> cmd_queue_;
+
+  boost::asio::io_context io_context_;
+  tcp::resolver resolver_;
+  tcp::socket socket_;
+  boost::asio::streambuf recv_buffer_;
+
+  boost::system::error_code error_code_;
+};
+
+} // Utils
+} // Slic3r
+
+#endif