| // |
| // detail/reactive_serial_port_service.hpp |
| // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| // |
| // Copyright (c) 2003-2010 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 BOOST_ASIO_DETAIL_REACTIVE_SERIAL_PORT_SERVICE_HPP |
| #define BOOST_ASIO_DETAIL_REACTIVE_SERIAL_PORT_SERVICE_HPP |
| |
| #if defined(_MSC_VER) && (_MSC_VER >= 1200) |
| # pragma once |
| #endif // defined(_MSC_VER) && (_MSC_VER >= 1200) |
| |
| #include <boost/asio/detail/config.hpp> |
| |
| #if defined(BOOST_ASIO_HAS_SERIAL_PORT) |
| #if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__) |
| |
| #include <string> |
| #include <boost/asio/error.hpp> |
| #include <boost/asio/io_service.hpp> |
| #include <boost/asio/serial_port_base.hpp> |
| #include <boost/asio/detail/descriptor_ops.hpp> |
| #include <boost/asio/detail/reactive_descriptor_service.hpp> |
| |
| #include <boost/asio/detail/push_options.hpp> |
| |
| namespace boost { |
| namespace asio { |
| namespace detail { |
| |
| // Extend reactive_descriptor_service to provide serial port support. |
| class reactive_serial_port_service |
| { |
| public: |
| // The native type of a serial port. |
| typedef reactive_descriptor_service::native_type native_type; |
| |
| // The implementation type of the serial port. |
| typedef reactive_descriptor_service::implementation_type implementation_type; |
| |
| BOOST_ASIO_DECL reactive_serial_port_service( |
| boost::asio::io_service& io_service); |
| |
| // Destroy all user-defined handler objects owned by the service. |
| BOOST_ASIO_DECL void shutdown_service(); |
| |
| // Construct a new serial port implementation. |
| void construct(implementation_type& impl) |
| { |
| descriptor_service_.construct(impl); |
| } |
| |
| // Destroy a serial port implementation. |
| void destroy(implementation_type& impl) |
| { |
| descriptor_service_.destroy(impl); |
| } |
| |
| // Open the serial port using the specified device name. |
| BOOST_ASIO_DECL boost::system::error_code open(implementation_type& impl, |
| const std::string& device, boost::system::error_code& ec); |
| |
| // Assign a native descriptor to a serial port implementation. |
| boost::system::error_code assign(implementation_type& impl, |
| const native_type& native_descriptor, boost::system::error_code& ec) |
| { |
| return descriptor_service_.assign(impl, native_descriptor, ec); |
| } |
| |
| // Determine whether the serial port is open. |
| bool is_open(const implementation_type& impl) const |
| { |
| return descriptor_service_.is_open(impl); |
| } |
| |
| // Destroy a serial port implementation. |
| boost::system::error_code close(implementation_type& impl, |
| boost::system::error_code& ec) |
| { |
| return descriptor_service_.close(impl, ec); |
| } |
| |
| // Get the native serial port representation. |
| native_type native(implementation_type& impl) |
| { |
| return descriptor_service_.native(impl); |
| } |
| |
| // Cancel all operations associated with the serial port. |
| boost::system::error_code cancel(implementation_type& impl, |
| boost::system::error_code& ec) |
| { |
| return descriptor_service_.cancel(impl, ec); |
| } |
| |
| // Set an option on the serial port. |
| template <typename SettableSerialPortOption> |
| boost::system::error_code set_option(implementation_type& impl, |
| const SettableSerialPortOption& option, boost::system::error_code& ec) |
| { |
| return do_set_option(impl, |
| &reactive_serial_port_service::store_option<SettableSerialPortOption>, |
| &option, ec); |
| } |
| |
| // Get an option from the serial port. |
| template <typename GettableSerialPortOption> |
| boost::system::error_code get_option(const implementation_type& impl, |
| GettableSerialPortOption& option, boost::system::error_code& ec) const |
| { |
| return do_get_option(impl, |
| &reactive_serial_port_service::load_option<GettableSerialPortOption>, |
| &option, ec); |
| } |
| |
| // Send a break sequence to the serial port. |
| boost::system::error_code send_break(implementation_type& impl, |
| boost::system::error_code& ec) |
| { |
| errno = 0; |
| descriptor_ops::error_wrapper(::tcsendbreak( |
| descriptor_service_.native(impl), 0), ec); |
| return ec; |
| } |
| |
| // Write the given data. Returns the number of bytes sent. |
| template <typename ConstBufferSequence> |
| size_t write_some(implementation_type& impl, |
| const ConstBufferSequence& buffers, boost::system::error_code& ec) |
| { |
| return descriptor_service_.write_some(impl, buffers, ec); |
| } |
| |
| // Start an asynchronous write. The data being written must be valid for the |
| // lifetime of the asynchronous operation. |
| template <typename ConstBufferSequence, typename Handler> |
| void async_write_some(implementation_type& impl, |
| const ConstBufferSequence& buffers, Handler handler) |
| { |
| descriptor_service_.async_write_some(impl, buffers, handler); |
| } |
| |
| // Read some data. Returns the number of bytes received. |
| template <typename MutableBufferSequence> |
| size_t read_some(implementation_type& impl, |
| const MutableBufferSequence& buffers, boost::system::error_code& ec) |
| { |
| return descriptor_service_.read_some(impl, buffers, ec); |
| } |
| |
| // Start an asynchronous read. The buffer for the data being received must be |
| // valid for the lifetime of the asynchronous operation. |
| template <typename MutableBufferSequence, typename Handler> |
| void async_read_some(implementation_type& impl, |
| const MutableBufferSequence& buffers, Handler handler) |
| { |
| descriptor_service_.async_read_some(impl, buffers, handler); |
| } |
| |
| private: |
| // Function pointer type for storing a serial port option. |
| typedef boost::system::error_code (*store_function_type)( |
| const void*, termios&, boost::system::error_code&); |
| |
| // Helper function template to store a serial port option. |
| template <typename SettableSerialPortOption> |
| static boost::system::error_code store_option(const void* option, |
| termios& storage, boost::system::error_code& ec) |
| { |
| return static_cast<const SettableSerialPortOption*>(option)->store( |
| storage, ec); |
| } |
| |
| // Helper function to set a serial port option. |
| BOOST_ASIO_DECL boost::system::error_code do_set_option( |
| implementation_type& impl, store_function_type store, |
| const void* option, boost::system::error_code& ec); |
| |
| // Function pointer type for loading a serial port option. |
| typedef boost::system::error_code (*load_function_type)( |
| void*, const termios&, boost::system::error_code&); |
| |
| // Helper function template to load a serial port option. |
| template <typename GettableSerialPortOption> |
| static boost::system::error_code load_option(void* option, |
| const termios& storage, boost::system::error_code& ec) |
| { |
| return static_cast<GettableSerialPortOption*>(option)->load(storage, ec); |
| } |
| |
| // Helper function to get a serial port option. |
| BOOST_ASIO_DECL boost::system::error_code do_get_option( |
| const implementation_type& impl, load_function_type load, |
| void* option, boost::system::error_code& ec) const; |
| |
| // The implementation used for initiating asynchronous operations. |
| reactive_descriptor_service descriptor_service_; |
| }; |
| |
| } // namespace detail |
| } // namespace asio |
| } // namespace boost |
| |
| #include <boost/asio/detail/pop_options.hpp> |
| |
| #if defined(BOOST_ASIO_HEADER_ONLY) |
| # include <boost/asio/detail/impl/reactive_serial_port_service.ipp> |
| #endif // defined(BOOST_ASIO_HEADER_ONLY) |
| |
| #endif // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__) |
| #endif // defined(BOOST_ASIO_HAS_SERIAL_PORT) |
| |
| #endif // BOOST_ASIO_DETAIL_REACTIVE_SERIAL_PORT_SERVICE_HPP |