basic_serial_port 和 async_read_until

Question

我正在尝试将 boost::shared_ptr 与 async_read_until 一起使用，但无法正常工作。这是我的简化代码：

header

boost::asio::io_service io_service;
typedef boost::shared_ptr<boost::asio::serial_port> serial_port_ptr;
serial_port_ptr serial_port;
boost::asio::streambuf response_data;
char delimiter = '\n';
boost::system::error_code error;

连接

serial_port = serial_port_ptr(new boost::asio::serial_port(io_service));
serial_port->open("/dev/ttyS0", error);

阅读

boost::asio::async_read_until(
  serial_port.get(), response_data, delimiter,
  boost::bind(
    &serial_comm::data_received,
      this, boost::asio::placeholders::error,
      boost::asio::placeholders::bytes_transferred
  )
);

我得到的错误是 no type named 'type' in 'struct std::enable_if<false, void>'。谢谢你。

Answer 1

您提供了一个指针作为 boost::asio::async_read_until 的输入而不是引用。应该这样改写：

boost::asio::async_read_until(
  *serial_port, response_data, delimiter,
  boost::bind(
    &serial_comm::data_received,
      this, boost::asio::placeholders::error,
      boost::asio::placeholders::bytes_transferred
  )
);

basic_serial_port 和 async_read_until

basic_serial_port and async_read_until

c++

serial-port

boost-asio