Sync from bytedesk-private: update

modules/python/vendors/FunASR/runtime/http/bin/connection.hpp

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+/**
+ * Copyright FunASR (https://github.com/alibaba-damo-academy/FunASR). All Rights
+ * Reserved. MIT License  (https://opensource.org/licenses/MIT)
+ */
+/* 2023-2024 by zhaomingwork@qq.com */
+//
+// copy some codes from  http://www.boost.org/
+//
+
+#ifndef HTTP_SERVER2_CONNECTION_HPP
+#define HTTP_SERVER2_CONNECTION_HPP
+
+#include <array>
+#include <asio.hpp>
+#include <atomic>
+#include <iostream>
+#include <memory>
+
+#include "reply.hpp"
+
+#include <fstream>
+ 
+
+#include "file_parse.hpp"
+#include "model-decoder.h"
+ 
+
+extern std::unordered_map<std::string, int> hws_map_;
+extern int fst_inc_wts_;
+extern float global_beam_, lattice_beam_, am_scale_;
+
+namespace http {
+namespace server2 {
+
+/// Represents a single connection from a client.
+class connection : public std::enable_shared_from_this<connection> {
+ public:
+  connection(const connection &) = delete;
+  connection &operator=(const connection &) = delete;
+  ~connection() { std::cout << "one connection is close()" << std::endl; };
+
+  /// Construct a connection with the given socket.
+  explicit connection(asio::ip::tcp::socket socket,
+                      asio::io_context &io_decoder, int connection_id,
+                      std::shared_ptr<ModelDecoder> model_decoder);
+
+ 
+  /// Start the first asynchronous operation for the connection.
+  void start();
+  std::shared_ptr<FUNASR_MESSAGE> &get_data_msg();
+  void write_back(std::string str);
+
+ private:
+  /// Perform an asynchronous read operation.
+  void do_read();
+
+  /// Perform an asynchronous write operation.
+  void do_write();
+
+  void do_decoder();
+
+  void setup_timer();
+
+  /// Socket for the connection.
+  asio::ip::tcp::socket socket_;
+
+ 
+
+  /// Buffer for incoming data.
+  std::array<char, 8192> buffer_;
+  /// for time out 
+  std::shared_ptr<asio::steady_timer> s_timer;
+
+  
+
+  std::shared_ptr<ModelDecoder> model_decoder;
+
+ 
+
+  int connection_id = 0;
+
+  /// The reply to be sent back to the client.
+  reply reply_;
+
+  asio::io_context &io_decoder;
+
+ 
+
+  std::shared_ptr<FUNASR_MESSAGE> data_msg;
+ 
+  std::mutex m_lock;
+
+ 
+  std::shared_ptr<asio::io_context::strand> strand_;
+
+  std::shared_ptr<http::server2::file_parser> file_parse;
+};
+
+typedef std::shared_ptr<connection> connection_ptr;
+
+}  // namespace server2
+}  // namespace http
+
+#endif  // HTTP_SERVER2_CONNECTION_HPP