| // |
| // detail/win_iocp_serial_port_service.hpp |
| // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| // |
| // Copyright (c) 2003-2015 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_DETAIL_WIN_IOCP_SERIAL_PORT_SERVICE_HPP |
| #define ASIO_DETAIL_WIN_IOCP_SERIAL_PORT_SERVICE_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_IOCP) && defined(ASIO_HAS_SERIAL_PORT) |
| |
| #include <string> |
| #include "asio/error.hpp" |
| #include "asio/io_context.hpp" |
| #include "asio/detail/win_iocp_handle_service.hpp" |
| |
| #include "asio/detail/push_options.hpp" |
| |
| namespace asio { |
| namespace detail { |
| |
| // Extend win_iocp_handle_service to provide serial port support. |
| class win_iocp_serial_port_service |
| { |
| public: |
| // The native type of a serial port. |
| typedef win_iocp_handle_service::native_handle_type native_handle_type; |
| |
| // The implementation type of the serial port. |
| typedef win_iocp_handle_service::implementation_type implementation_type; |
| |
| // Constructor. |
| ASIO_DECL win_iocp_serial_port_service( |
| asio::io_context& io_context); |
| |
| // Destroy all user-defined handler objects owned by the service. |
| ASIO_DECL void shutdown(); |
| |
| // Construct a new serial port implementation. |
| void construct(implementation_type& impl) |
| { |
| handle_service_.construct(impl); |
| } |
| |
| // Move-construct a new serial port implementation. |
| void move_construct(implementation_type& impl, |
| implementation_type& other_impl) |
| { |
| handle_service_.move_construct(impl, other_impl); |
| } |
| |
| // Move-assign from another serial port implementation. |
| void move_assign(implementation_type& impl, |
| win_iocp_serial_port_service& other_service, |
| implementation_type& other_impl) |
| { |
| handle_service_.move_assign(impl, |
| other_service.handle_service_, other_impl); |
| } |
| |
| // Destroy a serial port implementation. |
| void destroy(implementation_type& impl) |
| { |
| handle_service_.destroy(impl); |
| } |
| |
| // Open the serial port using the specified device name. |
| ASIO_DECL asio::error_code open(implementation_type& impl, |
| const std::string& device, asio::error_code& ec); |
| |
| // Assign a native handle to a serial port implementation. |
| asio::error_code assign(implementation_type& impl, |
| const native_handle_type& handle, asio::error_code& ec) |
| { |
| return handle_service_.assign(impl, handle, ec); |
| } |
| |
| // Determine whether the serial port is open. |
| bool is_open(const implementation_type& impl) const |
| { |
| return handle_service_.is_open(impl); |
| } |
| |
| // Destroy a serial port implementation. |
| asio::error_code close(implementation_type& impl, |
| asio::error_code& ec) |
| { |
| return handle_service_.close(impl, ec); |
| } |
| |
| // Get the native serial port representation. |
| native_handle_type native_handle(implementation_type& impl) |
| { |
| return handle_service_.native_handle(impl); |
| } |
| |
| // Cancel all operations associated with the handle. |
| asio::error_code cancel(implementation_type& impl, |
| asio::error_code& ec) |
| { |
| return handle_service_.cancel(impl, ec); |
| } |
| |
| // Set an option on the serial port. |
| template <typename SettableSerialPortOption> |
| asio::error_code set_option(implementation_type& impl, |
| const SettableSerialPortOption& option, asio::error_code& ec) |
| { |
| return do_set_option(impl, |
| &win_iocp_serial_port_service::store_option<SettableSerialPortOption>, |
| &option, ec); |
| } |
| |
| // Get an option from the serial port. |
| template <typename GettableSerialPortOption> |
| asio::error_code get_option(const implementation_type& impl, |
| GettableSerialPortOption& option, asio::error_code& ec) const |
| { |
| return do_get_option(impl, |
| &win_iocp_serial_port_service::load_option<GettableSerialPortOption>, |
| &option, ec); |
| } |
| |
| // Send a break sequence to the serial port. |
| asio::error_code send_break(implementation_type&, |
| asio::error_code& ec) |
| { |
| ec = asio::error::operation_not_supported; |
| 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, asio::error_code& ec) |
| { |
| return handle_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) |
| { |
| handle_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, asio::error_code& ec) |
| { |
| return handle_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) |
| { |
| handle_service_.async_read_some(impl, buffers, handler); |
| } |
| |
| private: |
| // Function pointer type for storing a serial port option. |
| typedef asio::error_code (*store_function_type)( |
| const void*, ::DCB&, asio::error_code&); |
| |
| // Helper function template to store a serial port option. |
| template <typename SettableSerialPortOption> |
| static asio::error_code store_option(const void* option, |
| ::DCB& storage, asio::error_code& ec) |
| { |
| return static_cast<const SettableSerialPortOption*>(option)->store( |
| storage, ec); |
| } |
| |
| // Helper function to set a serial port option. |
| ASIO_DECL asio::error_code do_set_option( |
| implementation_type& impl, store_function_type store, |
| const void* option, asio::error_code& ec); |
| |
| // Function pointer type for loading a serial port option. |
| typedef asio::error_code (*load_function_type)( |
| void*, const ::DCB&, asio::error_code&); |
| |
| // Helper function template to load a serial port option. |
| template <typename GettableSerialPortOption> |
| static asio::error_code load_option(void* option, |
| const ::DCB& storage, asio::error_code& ec) |
| { |
| return static_cast<GettableSerialPortOption*>(option)->load(storage, ec); |
| } |
| |
| // Helper function to get a serial port option. |
| ASIO_DECL asio::error_code do_get_option( |
| const implementation_type& impl, load_function_type load, |
| void* option, asio::error_code& ec) const; |
| |
| // The implementation used for initiating asynchronous operations. |
| win_iocp_handle_service handle_service_; |
| }; |
| |
| } // namespace detail |
| } // namespace asio |
| |
| #include "asio/detail/pop_options.hpp" |
| |
| #if defined(ASIO_HEADER_ONLY) |
| # include "asio/detail/impl/win_iocp_serial_port_service.ipp" |
| #endif // defined(ASIO_HEADER_ONLY) |
| |
| #endif // defined(ASIO_HAS_IOCP) && defined(ASIO_HAS_SERIAL_PORT) |
| |
| #endif // ASIO_DETAIL_WIN_IOCP_SERIAL_PORT_SERVICE_HPP |