Pull in files from odr-mmbtools-common

Replace ASIO by simpler implementation, meaning that the telnet
RC now only supports a single connection.

Move Log, RC to lib/

1 files changed, 0 insertions, 769 deletions

diff --git a/lib/asio/serial_port.hpp b/lib/asio/serial_port.hpp
deleted file mode 100644
index 27bb63e..0000000
--- a/lib/asio/serial_port.hpp
+++ /dev/null
@@ -1,769 +0,0 @@
-//
-// serial_port.hpp
-// ~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-// Copyright (c) 2008 Rep Invariant Systems, Inc. (info@repinvariant.com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_SERIAL_PORT_HPP
-#define ASIO_SERIAL_PORT_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_SERIAL_PORT) \
-  || defined(GENERATING_DOCUMENTATION)
-
-#include <string>
-#include "asio/async_result.hpp"
-#include "asio/basic_io_object.hpp"
-#include "asio/detail/handler_type_requirements.hpp"
-#include "asio/detail/throw_error.hpp"
-#include "asio/error.hpp"
-#include "asio/io_context.hpp"
-#include "asio/serial_port_base.hpp"
-
-#if defined(ASIO_HAS_MOVE)
-# include <utility>
-#endif // defined(ASIO_HAS_MOVE)
-
-#if defined(ASIO_ENABLE_OLD_SERVICES)
-# include "asio/basic_serial_port.hpp"
-#else // defined(ASIO_ENABLE_OLD_SERVICES)
-# if defined(ASIO_HAS_IOCP)
-#  include "asio/detail/win_iocp_serial_port_service.hpp"
-#  define ASIO_SVC_T detail::win_iocp_serial_port_service
-# else
-#  include "asio/detail/reactive_serial_port_service.hpp"
-#  define ASIO_SVC_T detail::reactive_serial_port_service
-# endif
-#endif // defined(ASIO_ENABLE_OLD_SERVICES)
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-
-#if defined(ASIO_ENABLE_OLD_SERVICES)
-// Typedef for the typical usage of a serial port.
-typedef basic_serial_port<> serial_port;
-#else // defined(ASIO_ENABLE_OLD_SERVICES)
-/// Provides serial port functionality.
-/**
- * The serial_port class provides a wrapper over serial port functionality.
- *
- * @par Thread Safety
- * @e Distinct @e objects: Safe.@n
- * @e Shared @e objects: Unsafe.
- */
-class serial_port
-  : ASIO_SVC_ACCESS basic_io_object<ASIO_SVC_T>,
-    public serial_port_base
-{
-public:
-  /// The type of the executor associated with the object.
-  typedef io_context::executor_type executor_type;
-
-  /// The native representation of a serial port.
-#if defined(GENERATING_DOCUMENTATION)
-  typedef implementation_defined native_handle_type;
-#else
-  typedef ASIO_SVC_T::native_handle_type native_handle_type;
-#endif
-
-  /// A basic_serial_port is always the lowest layer.
-  typedef serial_port lowest_layer_type;
-
-  /// Construct a serial_port without opening it.
-  /**
-   * This constructor creates a serial port without opening it.
-   *
-   * @param io_context The io_context object that the serial port will use to
-   * dispatch handlers for any asynchronous operations performed on the port.
-   */
-  explicit serial_port(asio::io_context& io_context)
-    : basic_io_object<ASIO_SVC_T>(io_context)
-  {
-  }
-
-  /// Construct and open a serial_port.
-  /**
-   * This constructor creates and opens a serial port for the specified device
-   * name.
-   *
-   * @param io_context The io_context object that the serial port will use to
-   * dispatch handlers for any asynchronous operations performed on the port.
-   *
-   * @param device The platform-specific device name for this serial
-   * port.
-   */
-  explicit serial_port(asio::io_context& io_context,
-      const char* device)
-    : basic_io_object<ASIO_SVC_T>(io_context)
-  {
-    asio::error_code ec;
-    this->get_service().open(this->get_implementation(), device, ec);
-    asio::detail::throw_error(ec, "open");
-  }
-
-  /// Construct and open a serial_port.
-  /**
-   * This constructor creates and opens a serial port for the specified device
-   * name.
-   *
-   * @param io_context The io_context object that the serial port will use to
-   * dispatch handlers for any asynchronous operations performed on the port.
-   *
-   * @param device The platform-specific device name for this serial
-   * port.
-   */
-  explicit serial_port(asio::io_context& io_context,
-      const std::string& device)
-    : basic_io_object<ASIO_SVC_T>(io_context)
-  {
-    asio::error_code ec;
-    this->get_service().open(this->get_implementation(), device, ec);
-    asio::detail::throw_error(ec, "open");
-  }
-
-  /// Construct a serial_port on an existing native serial port.
-  /**
-   * This constructor creates a serial port object to hold an existing native
-   * serial port.
-   *
-   * @param io_context The io_context object that the serial port will use to
-   * dispatch handlers for any asynchronous operations performed on the port.
-   *
-   * @param native_serial_port A native serial port.
-   *
-   * @throws asio::system_error Thrown on failure.
-   */
-  serial_port(asio::io_context& io_context,
-      const native_handle_type& native_serial_port)
-    : basic_io_object<ASIO_SVC_T>(io_context)
-  {
-    asio::error_code ec;
-    this->get_service().assign(this->get_implementation(),
-        native_serial_port, ec);
-    asio::detail::throw_error(ec, "assign");
-  }
-
-#if defined(ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION)
-  /// Move-construct a serial_port from another.
-  /**
-   * This constructor moves a serial port from one object to another.
-   *
-   * @param other The other serial_port object from which the move will
-   * occur.
-   *
-   * @note Following the move, the moved-from object is in the same state as if
-   * constructed using the @c serial_port(io_context&) constructor.
-   */
-  serial_port(serial_port&& other)
-    : basic_io_object<ASIO_SVC_T>(std::move(other))
-  {
-  }
-
-  /// Move-assign a serial_port from another.
-  /**
-   * This assignment operator moves a serial port from one object to another.
-   *
-   * @param other The other serial_port object from which the move will
-   * occur.
-   *
-   * @note Following the move, the moved-from object is in the same state as if
-   * constructed using the @c serial_port(io_context&) constructor.
-   */
-  serial_port& operator=(serial_port&& other)
-  {
-    basic_io_object<ASIO_SVC_T>::operator=(std::move(other));
-    return *this;
-  }
-#endif // defined(ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION)
-
-  /// Destroys the serial port.
-  /**
-   * This function destroys the serial port, cancelling any outstanding
-   * asynchronous wait operations associated with the serial port as if by
-   * calling @c cancel.
-   */
-  ~serial_port()
-  {
-  }
-
-#if !defined(ASIO_NO_DEPRECATED)
-  /// (Deprecated: Use get_executor().) Get the io_context associated with the
-  /// object.
-  /**
-   * This function may be used to obtain the io_context object that the I/O
-   * object uses to dispatch handlers for asynchronous operations.
-   *
-   * @return A reference to the io_context object that the I/O object will use
-   * to dispatch handlers. Ownership is not transferred to the caller.
-   */
-  asio::io_context& get_io_context()
-  {
-    return basic_io_object<ASIO_SVC_T>::get_io_context();
-  }
-
-  /// (Deprecated: Use get_executor().) Get the io_context associated with the
-  /// object.
-  /**
-   * This function may be used to obtain the io_context object that the I/O
-   * object uses to dispatch handlers for asynchronous operations.
-   *
-   * @return A reference to the io_context object that the I/O object will use
-   * to dispatch handlers. Ownership is not transferred to the caller.
-   */
-  asio::io_context& get_io_service()
-  {
-    return basic_io_object<ASIO_SVC_T>::get_io_service();
-  }
-#endif // !defined(ASIO_NO_DEPRECATED)
-
-  /// Get the executor associated with the object.
-  executor_type get_executor() ASIO_NOEXCEPT
-  {
-    return basic_io_object<ASIO_SVC_T>::get_executor();
-  }
-
-  /// Get a reference to the lowest layer.
-  /**
-   * This function returns a reference to the lowest layer in a stack of
-   * layers. Since a serial_port cannot contain any further layers, it simply
-   * returns a reference to itself.
-   *
-   * @return A reference to the lowest layer in the stack of layers. Ownership
-   * is not transferred to the caller.
-   */
-  lowest_layer_type& lowest_layer()
-  {
-    return *this;
-  }
-
-  /// Get a const reference to the lowest layer.
-  /**
-   * This function returns a const reference to the lowest layer in a stack of
-   * layers. Since a serial_port cannot contain any further layers, it simply
-   * returns a reference to itself.
-   *
-   * @return A const reference to the lowest layer in the stack of layers.
-   * Ownership is not transferred to the caller.
-   */
-  const lowest_layer_type& lowest_layer() const
-  {
-    return *this;
-  }
-
-  /// Open the serial port using the specified device name.
-  /**
-   * This function opens the serial port for the specified device name.
-   *
-   * @param device The platform-specific device name.
-   *
-   * @throws asio::system_error Thrown on failure.
-   */
-  void open(const std::string& device)
-  {
-    asio::error_code ec;
-    this->get_service().open(this->get_implementation(), device, ec);
-    asio::detail::throw_error(ec, "open");
-  }
-
-  /// Open the serial port using the specified device name.
-  /**
-   * This function opens the serial port using the given platform-specific
-   * device name.
-   *
-   * @param device The platform-specific device name.
-   *
-   * @param ec Set the indicate what error occurred, if any.
-   */
-  ASIO_SYNC_OP_VOID open(const std::string& device,
-      asio::error_code& ec)
-  {
-    this->get_service().open(this->get_implementation(), device, ec);
-    ASIO_SYNC_OP_VOID_RETURN(ec);
-  }
-
-  /// Assign an existing native serial port to the serial port.
-  /*
-   * This function opens the serial port to hold an existing native serial port.
-   *
-   * @param native_serial_port A native serial port.
-   *
-   * @throws asio::system_error Thrown on failure.
-   */
-  void assign(const native_handle_type& native_serial_port)
-  {
-    asio::error_code ec;
-    this->get_service().assign(this->get_implementation(),
-        native_serial_port, ec);
-    asio::detail::throw_error(ec, "assign");
-  }
-
-  /// Assign an existing native serial port to the serial port.
-  /*
-   * This function opens the serial port to hold an existing native serial port.
-   *
-   * @param native_serial_port A native serial port.
-   *
-   * @param ec Set to indicate what error occurred, if any.
-   */
-  ASIO_SYNC_OP_VOID assign(const native_handle_type& native_serial_port,
-      asio::error_code& ec)
-  {
-    this->get_service().assign(this->get_implementation(),
-        native_serial_port, ec);
-    ASIO_SYNC_OP_VOID_RETURN(ec);
-  }
-
-  /// Determine whether the serial port is open.
-  bool is_open() const
-  {
-    return this->get_service().is_open(this->get_implementation());
-  }
-
-  /// Close the serial port.
-  /**
-   * This function is used to close the serial port. Any asynchronous read or
-   * write operations will be cancelled immediately, and will complete with the
-   * asio::error::operation_aborted error.
-   *
-   * @throws asio::system_error Thrown on failure.
-   */
-  void close()
-  {
-    asio::error_code ec;
-    this->get_service().close(this->get_implementation(), ec);
-    asio::detail::throw_error(ec, "close");
-  }
-
-  /// Close the serial port.
-  /**
-   * This function is used to close the serial port. Any asynchronous read or
-   * write operations will be cancelled immediately, and will complete with the
-   * asio::error::operation_aborted error.
-   *
-   * @param ec Set to indicate what error occurred, if any.
-   */
-  ASIO_SYNC_OP_VOID close(asio::error_code& ec)
-  {
-    this->get_service().close(this->get_implementation(), ec);
-    ASIO_SYNC_OP_VOID_RETURN(ec);
-  }
-
-  /// Get the native serial port representation.
-  /**
-   * This function may be used to obtain the underlying representation of the
-   * serial port. This is intended to allow access to native serial port
-   * functionality that is not otherwise provided.
-   */
-  native_handle_type native_handle()
-  {
-    return this->get_service().native_handle(this->get_implementation());
-  }
-
-  /// Cancel all asynchronous operations associated with the serial port.
-  /**
-   * This function causes all outstanding asynchronous read or write operations
-   * to finish immediately, and the handlers for cancelled operations will be
-   * passed the asio::error::operation_aborted error.
-   *
-   * @throws asio::system_error Thrown on failure.
-   */
-  void cancel()
-  {
-    asio::error_code ec;
-    this->get_service().cancel(this->get_implementation(), ec);
-    asio::detail::throw_error(ec, "cancel");
-  }
-
-  /// Cancel all asynchronous operations associated with the serial port.
-  /**
-   * This function causes all outstanding asynchronous read or write operations
-   * to finish immediately, and the handlers for cancelled operations will be
-   * passed the asio::error::operation_aborted error.
-   *
-   * @param ec Set to indicate what error occurred, if any.
-   */
-  ASIO_SYNC_OP_VOID cancel(asio::error_code& ec)
-  {
-    this->get_service().cancel(this->get_implementation(), ec);
-    ASIO_SYNC_OP_VOID_RETURN(ec);
-  }
-
-  /// Send a break sequence to the serial port.
-  /**
-   * This function causes a break sequence of platform-specific duration to be
-   * sent out the serial port.
-   *
-   * @throws asio::system_error Thrown on failure.
-   */
-  void send_break()
-  {
-    asio::error_code ec;
-    this->get_service().send_break(this->get_implementation(), ec);
-    asio::detail::throw_error(ec, "send_break");
-  }
-
-  /// Send a break sequence to the serial port.
-  /**
-   * This function causes a break sequence of platform-specific duration to be
-   * sent out the serial port.
-   *
-   * @param ec Set to indicate what error occurred, if any.
-   */
-  ASIO_SYNC_OP_VOID send_break(asio::error_code& ec)
-  {
-    this->get_service().send_break(this->get_implementation(), ec);
-    ASIO_SYNC_OP_VOID_RETURN(ec);
-  }
-
-  /// Set an option on the serial port.
-  /**
-   * This function is used to set an option on the serial port.
-   *
-   * @param option The option value to be set on the serial port.
-   *
-   * @throws asio::system_error Thrown on failure.
-   *
-   * @sa SettableSerialPortOption @n
-   * asio::serial_port_base::baud_rate @n
-   * asio::serial_port_base::flow_control @n
-   * asio::serial_port_base::parity @n
-   * asio::serial_port_base::stop_bits @n
-   * asio::serial_port_base::character_size
-   */
-  template <typename SettableSerialPortOption>
-  void set_option(const SettableSerialPortOption& option)
-  {
-    asio::error_code ec;
-    this->get_service().set_option(this->get_implementation(), option, ec);
-    asio::detail::throw_error(ec, "set_option");
-  }
-
-  /// Set an option on the serial port.
-  /**
-   * This function is used to set an option on the serial port.
-   *
-   * @param option The option value to be set on the serial port.
-   *
-   * @param ec Set to indicate what error occurred, if any.
-   *
-   * @sa SettableSerialPortOption @n
-   * asio::serial_port_base::baud_rate @n
-   * asio::serial_port_base::flow_control @n
-   * asio::serial_port_base::parity @n
-   * asio::serial_port_base::stop_bits @n
-   * asio::serial_port_base::character_size
-   */
-  template <typename SettableSerialPortOption>
-  ASIO_SYNC_OP_VOID set_option(const SettableSerialPortOption& option,
-      asio::error_code& ec)
-  {
-    this->get_service().set_option(this->get_implementation(), option, ec);
-    ASIO_SYNC_OP_VOID_RETURN(ec);
-  }
-
-  /// Get an option from the serial port.
-  /**
-   * This function is used to get the current value of an option on the serial
-   * port.
-   *
-   * @param option The option value to be obtained from the serial port.
-   *
-   * @throws asio::system_error Thrown on failure.
-   *
-   * @sa GettableSerialPortOption @n
-   * asio::serial_port_base::baud_rate @n
-   * asio::serial_port_base::flow_control @n
-   * asio::serial_port_base::parity @n
-   * asio::serial_port_base::stop_bits @n
-   * asio::serial_port_base::character_size
-   */
-  template <typename GettableSerialPortOption>
-  void get_option(GettableSerialPortOption& option)
-  {
-    asio::error_code ec;
-    this->get_service().get_option(this->get_implementation(), option, ec);
-    asio::detail::throw_error(ec, "get_option");
-  }
-
-  /// Get an option from the serial port.
-  /**
-   * This function is used to get the current value of an option on the serial
-   * port.
-   *
-   * @param option The option value to be obtained from the serial port.
-   *
-   * @param ec Set to indicate what error occurred, if any.
-   *
-   * @sa GettableSerialPortOption @n
-   * asio::serial_port_base::baud_rate @n
-   * asio::serial_port_base::flow_control @n
-   * asio::serial_port_base::parity @n
-   * asio::serial_port_base::stop_bits @n
-   * asio::serial_port_base::character_size
-   */
-  template <typename GettableSerialPortOption>
-  ASIO_SYNC_OP_VOID get_option(GettableSerialPortOption& option,
-      asio::error_code& ec)
-  {
-    this->get_service().get_option(this->get_implementation(), option, ec);
-    ASIO_SYNC_OP_VOID_RETURN(ec);
-  }
-
-  /// Write some data to the serial port.
-  /**
-   * This function is used to write data to the serial port. The function call
-   * will block until one or more bytes of the data has been written
-   * successfully, or until an error occurs.
-   *
-   * @param buffers One or more data buffers to be written to the serial port.
-   *
-   * @returns The number of bytes written.
-   *
-   * @throws asio::system_error Thrown on failure. An error code of
-   * asio::error::eof indicates that the connection was closed by the
-   * peer.
-   *
-   * @note The write_some operation may not transmit all of the data to the
-   * peer. Consider using the @ref write function if you need to ensure that
-   * all data is written before the blocking operation completes.
-   *
-   * @par Example
-   * To write a single data buffer use the @ref buffer function as follows:
-   * @code
-   * serial_port.write_some(asio::buffer(data, size));
-   * @endcode
-   * See the @ref buffer documentation for information on writing multiple
-   * buffers in one go, and how to use it with arrays, boost::array or
-   * std::vector.
-   */
-  template <typename ConstBufferSequence>
-  std::size_t write_some(const ConstBufferSequence& buffers)
-  {
-    asio::error_code ec;
-    std::size_t s = this->get_service().write_some(
-        this->get_implementation(), buffers, ec);
-    asio::detail::throw_error(ec, "write_some");
-    return s;
-  }
-
-  /// Write some data to the serial port.
-  /**
-   * This function is used to write data to the serial port. The function call
-   * will block until one or more bytes of the data has been written
-   * successfully, or until an error occurs.
-   *
-   * @param buffers One or more data buffers to be written to the serial port.
-   *
-   * @param ec Set to indicate what error occurred, if any.
-   *
-   * @returns The number of bytes written. Returns 0 if an error occurred.
-   *
-   * @note The write_some operation may not transmit all of the data to the
-   * peer. Consider using the @ref write function if you need to ensure that
-   * all data is written before the blocking operation completes.
-   */
-  template <typename ConstBufferSequence>
-  std::size_t write_some(const ConstBufferSequence& buffers,
-      asio::error_code& ec)
-  {
-    return this->get_service().write_some(
-        this->get_implementation(), buffers, ec);
-  }
-
-  /// Start an asynchronous write.
-  /**
-   * This function is used to asynchronously write data to the serial port.
-   * The function call always returns immediately.
-   *
-   * @param buffers One or more data buffers to be written to the serial port.
-   * Although the buffers object may be copied as necessary, ownership of the
-   * underlying memory blocks is retained by the caller, which must guarantee
-   * that they remain valid until the handler is called.
-   *
-   * @param handler The handler to be called when the write operation completes.
-   * Copies will be made of the handler as required. The function signature of
-   * the handler must be:
-   * @code void handler(
-   *   const asio::error_code& error, // Result of operation.
-   *   std::size_t bytes_transferred           // Number of bytes written.
-   * ); @endcode
-   * Regardless of whether the asynchronous operation completes immediately or
-   * not, the handler will not be invoked from within this function. Invocation
-   * of the handler will be performed in a manner equivalent to using
-   * asio::io_context::post().
-   *
-   * @note The write operation may not transmit all of the data to the peer.
-   * Consider using the @ref async_write function if you need to ensure that all
-   * data is written before the asynchronous operation completes.
-   *
-   * @par Example
-   * To write a single data buffer use the @ref buffer function as follows:
-   * @code
-   * serial_port.async_write_some(asio::buffer(data, size), handler);
-   * @endcode
-   * See the @ref buffer documentation for information on writing multiple
-   * buffers in one go, and how to use it with arrays, boost::array or
-   * std::vector.
-   */
-  template <typename ConstBufferSequence, typename WriteHandler>
-  ASIO_INITFN_RESULT_TYPE(WriteHandler,
-      void (asio::error_code, std::size_t))
-  async_write_some(const ConstBufferSequence& buffers,
-      ASIO_MOVE_ARG(WriteHandler) handler)
-  {
-    // If you get an error on the following line it means that your handler does
-    // not meet the documented type requirements for a WriteHandler.
-    ASIO_WRITE_HANDLER_CHECK(WriteHandler, handler) type_check;
-
-    async_completion<WriteHandler,
-      void (asio::error_code, std::size_t)> init(handler);
-
-    this->get_service().async_write_some(
-        this->get_implementation(), buffers, init.completion_handler);
-
-    return init.result.get();
-  }
-
-  /// Read some data from the serial port.
-  /**
-   * This function is used to read data from the serial port. The function
-   * call will block until one or more bytes of data has been read successfully,
-   * or until an error occurs.
-   *
-   * @param buffers One or more buffers into which the data will be read.
-   *
-   * @returns The number of bytes read.
-   *
-   * @throws asio::system_error Thrown on failure. An error code of
-   * asio::error::eof indicates that the connection was closed by the
-   * peer.
-   *
-   * @note The read_some operation may not read all of the requested number of
-   * bytes. Consider using the @ref read function if you need to ensure that
-   * the requested amount of data is read before the blocking operation
-   * completes.
-   *
-   * @par Example
-   * To read into a single data buffer use the @ref buffer function as follows:
-   * @code
-   * serial_port.read_some(asio::buffer(data, size));
-   * @endcode
-   * See the @ref buffer documentation for information on reading into multiple
-   * buffers in one go, and how to use it with arrays, boost::array or
-   * std::vector.
-   */
-  template <typename MutableBufferSequence>
-  std::size_t read_some(const MutableBufferSequence& buffers)
-  {
-    asio::error_code ec;
-    std::size_t s = this->get_service().read_some(
-        this->get_implementation(), buffers, ec);
-    asio::detail::throw_error(ec, "read_some");
-    return s;
-  }
-
-  /// Read some data from the serial port.
-  /**
-   * This function is used to read data from the serial port. The function
-   * call will block until one or more bytes of data has been read successfully,
-   * or until an error occurs.
-   *
-   * @param buffers One or more buffers into which the data will be read.
-   *
-   * @param ec Set to indicate what error occurred, if any.
-   *
-   * @returns The number of bytes read. Returns 0 if an error occurred.
-   *
-   * @note The read_some operation may not read all of the requested number of
-   * bytes. Consider using the @ref read function if you need to ensure that
-   * the requested amount of data is read before the blocking operation
-   * completes.
-   */
-  template <typename MutableBufferSequence>
-  std::size_t read_some(const MutableBufferSequence& buffers,
-      asio::error_code& ec)
-  {
-    return this->get_service().read_some(
-        this->get_implementation(), buffers, ec);
-  }
-
-  /// Start an asynchronous read.
-  /**
-   * This function is used to asynchronously read data from the serial port.
-   * The function call always returns immediately.
-   *
-   * @param buffers One or more buffers into which the data will be read.
-   * Although the buffers object may be copied as necessary, ownership of the
-   * underlying memory blocks is retained by the caller, which must guarantee
-   * that they remain valid until the handler is called.
-   *
-   * @param handler The handler to be called when the read operation completes.
-   * Copies will be made of the handler as required. The function signature of
-   * the handler must be:
-   * @code void handler(
-   *   const asio::error_code& error, // Result of operation.
-   *   std::size_t bytes_transferred           // Number of bytes read.
-   * ); @endcode
-   * Regardless of whether the asynchronous operation completes immediately or
-   * not, the handler will not be invoked from within this function. Invocation
-   * of the handler will be performed in a manner equivalent to using
-   * asio::io_context::post().
-   *
-   * @note The read operation may not read all of the requested number of bytes.
-   * Consider using the @ref async_read function if you need to ensure that the
-   * requested amount of data is read before the asynchronous operation
-   * completes.
-   *
-   * @par Example
-   * To read into a single data buffer use the @ref buffer function as follows:
-   * @code
-   * serial_port.async_read_some(asio::buffer(data, size), handler);
-   * @endcode
-   * See the @ref buffer documentation for information on reading into multiple
-   * buffers in one go, and how to use it with arrays, boost::array or
-   * std::vector.
-   */
-  template <typename MutableBufferSequence, typename ReadHandler>
-  ASIO_INITFN_RESULT_TYPE(ReadHandler,
-      void (asio::error_code, std::size_t))
-  async_read_some(const MutableBufferSequence& buffers,
-      ASIO_MOVE_ARG(ReadHandler) handler)
-  {
-    // If you get an error on the following line it means that your handler does
-    // not meet the documented type requirements for a ReadHandler.
-    ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check;
-
-    async_completion<ReadHandler,
-      void (asio::error_code, std::size_t)> init(handler);
-
-    this->get_service().async_read_some(
-        this->get_implementation(), buffers, init.completion_handler);
-
-    return init.result.get();
-  }
-};
-#endif // defined(ASIO_ENABLE_OLD_SERVICES)
-
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#if !defined(ASIO_ENABLE_OLD_SERVICES)
-# undef ASIO_SVC_T
-#endif // !defined(ASIO_ENABLE_OLD_SERVICES)
-
-#endif // defined(ASIO_HAS_SERIAL_PORT)
-       //   || defined(GENERATING_DOCUMENTATION)
-
-#endif // ASIO_SERIAL_PORT_HPP