mirror of
https://github.com/yuzu-emu/ext-boost.git
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241 lines
8.1 KiB
C++
241 lines
8.1 KiB
C++
//
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// detail/reactive_serial_port_service.hpp
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// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2019 Christopher M. Kohlhoff (chris at kohlhoff dot com)
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// Copyright (c) 2008 Rep Invariant Systems, Inc. (info@repinvariant.com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#ifndef BOOST_ASIO_DETAIL_REACTIVE_SERIAL_PORT_SERVICE_HPP
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#define BOOST_ASIO_DETAIL_REACTIVE_SERIAL_PORT_SERVICE_HPP
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#if defined(_MSC_VER) && (_MSC_VER >= 1200)
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# pragma once
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#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
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#include <boost/asio/detail/config.hpp>
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#if defined(BOOST_ASIO_HAS_SERIAL_PORT)
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#if !defined(BOOST_ASIO_WINDOWS) && !defined(__CYGWIN__)
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#include <string>
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#include <boost/asio/error.hpp>
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#include <boost/asio/execution_context.hpp>
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#include <boost/asio/serial_port_base.hpp>
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#include <boost/asio/detail/descriptor_ops.hpp>
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#include <boost/asio/detail/reactive_descriptor_service.hpp>
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#include <boost/asio/detail/push_options.hpp>
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namespace boost {
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namespace asio {
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namespace detail {
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// Extend reactive_descriptor_service to provide serial port support.
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class reactive_serial_port_service :
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public execution_context_service_base<reactive_serial_port_service>
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{
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public:
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// The native type of a serial port.
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typedef reactive_descriptor_service::native_handle_type native_handle_type;
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// The implementation type of the serial port.
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typedef reactive_descriptor_service::implementation_type implementation_type;
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BOOST_ASIO_DECL reactive_serial_port_service(execution_context& context);
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// Destroy all user-defined handler objects owned by the service.
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BOOST_ASIO_DECL void shutdown();
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// Construct a new serial port implementation.
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void construct(implementation_type& impl)
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{
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descriptor_service_.construct(impl);
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}
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// Move-construct a new serial port implementation.
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void move_construct(implementation_type& impl,
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implementation_type& other_impl)
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{
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descriptor_service_.move_construct(impl, other_impl);
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}
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// Move-assign from another serial port implementation.
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void move_assign(implementation_type& impl,
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reactive_serial_port_service& other_service,
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implementation_type& other_impl)
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{
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descriptor_service_.move_assign(impl,
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other_service.descriptor_service_, other_impl);
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}
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// Destroy a serial port implementation.
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void destroy(implementation_type& impl)
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{
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descriptor_service_.destroy(impl);
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}
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// Open the serial port using the specified device name.
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BOOST_ASIO_DECL boost::system::error_code open(implementation_type& impl,
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const std::string& device, boost::system::error_code& ec);
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// Assign a native descriptor to a serial port implementation.
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boost::system::error_code assign(implementation_type& impl,
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const native_handle_type& native_descriptor,
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boost::system::error_code& ec)
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{
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return descriptor_service_.assign(impl, native_descriptor, ec);
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}
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// Determine whether the serial port is open.
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bool is_open(const implementation_type& impl) const
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{
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return descriptor_service_.is_open(impl);
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}
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// Destroy a serial port implementation.
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boost::system::error_code close(implementation_type& impl,
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boost::system::error_code& ec)
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{
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return descriptor_service_.close(impl, ec);
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}
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// Get the native serial port representation.
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native_handle_type native_handle(implementation_type& impl)
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{
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return descriptor_service_.native_handle(impl);
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}
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// Cancel all operations associated with the serial port.
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boost::system::error_code cancel(implementation_type& impl,
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boost::system::error_code& ec)
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{
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return descriptor_service_.cancel(impl, ec);
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}
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// Set an option on the serial port.
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template <typename SettableSerialPortOption>
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boost::system::error_code set_option(implementation_type& impl,
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const SettableSerialPortOption& option, boost::system::error_code& ec)
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{
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return do_set_option(impl,
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&reactive_serial_port_service::store_option<SettableSerialPortOption>,
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&option, ec);
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}
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// Get an option from the serial port.
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template <typename GettableSerialPortOption>
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boost::system::error_code get_option(const implementation_type& impl,
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GettableSerialPortOption& option, boost::system::error_code& ec) const
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{
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return do_get_option(impl,
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&reactive_serial_port_service::load_option<GettableSerialPortOption>,
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&option, ec);
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}
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// Send a break sequence to the serial port.
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boost::system::error_code send_break(implementation_type& impl,
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boost::system::error_code& ec)
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{
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errno = 0;
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descriptor_ops::error_wrapper(::tcsendbreak(
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descriptor_service_.native_handle(impl), 0), ec);
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return ec;
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}
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// Write the given data. Returns the number of bytes sent.
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template <typename ConstBufferSequence>
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size_t write_some(implementation_type& impl,
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const ConstBufferSequence& buffers, boost::system::error_code& ec)
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{
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return descriptor_service_.write_some(impl, buffers, ec);
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}
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// Start an asynchronous write. The data being written must be valid for the
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// lifetime of the asynchronous operation.
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template <typename ConstBufferSequence, typename Handler, typename IoExecutor>
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void async_write_some(implementation_type& impl,
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const ConstBufferSequence& buffers,
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Handler& handler, const IoExecutor& io_ex)
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{
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descriptor_service_.async_write_some(impl, buffers, handler, io_ex);
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}
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// Read some data. Returns the number of bytes received.
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template <typename MutableBufferSequence>
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size_t read_some(implementation_type& impl,
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const MutableBufferSequence& buffers, boost::system::error_code& ec)
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{
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return descriptor_service_.read_some(impl, buffers, ec);
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}
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// Start an asynchronous read. The buffer for the data being received must be
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// valid for the lifetime of the asynchronous operation.
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template <typename MutableBufferSequence,
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typename Handler, typename IoExecutor>
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void async_read_some(implementation_type& impl,
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const MutableBufferSequence& buffers,
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Handler& handler, const IoExecutor& io_ex)
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{
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descriptor_service_.async_read_some(impl, buffers, handler, io_ex);
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}
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private:
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// Function pointer type for storing a serial port option.
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typedef boost::system::error_code (*store_function_type)(
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const void*, termios&, boost::system::error_code&);
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// Helper function template to store a serial port option.
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template <typename SettableSerialPortOption>
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static boost::system::error_code store_option(const void* option,
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termios& storage, boost::system::error_code& ec)
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{
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static_cast<const SettableSerialPortOption*>(option)->store(storage, ec);
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return ec;
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}
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// Helper function to set a serial port option.
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BOOST_ASIO_DECL boost::system::error_code do_set_option(
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implementation_type& impl, store_function_type store,
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const void* option, boost::system::error_code& ec);
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// Function pointer type for loading a serial port option.
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typedef boost::system::error_code (*load_function_type)(
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void*, const termios&, boost::system::error_code&);
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// Helper function template to load a serial port option.
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template <typename GettableSerialPortOption>
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static boost::system::error_code load_option(void* option,
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const termios& storage, boost::system::error_code& ec)
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{
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static_cast<GettableSerialPortOption*>(option)->load(storage, ec);
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return ec;
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}
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// Helper function to get a serial port option.
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BOOST_ASIO_DECL boost::system::error_code do_get_option(
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const implementation_type& impl, load_function_type load,
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void* option, boost::system::error_code& ec) const;
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// The implementation used for initiating asynchronous operations.
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reactive_descriptor_service descriptor_service_;
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};
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} // namespace detail
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} // namespace asio
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} // namespace boost
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#include <boost/asio/detail/pop_options.hpp>
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#if defined(BOOST_ASIO_HEADER_ONLY)
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# include <boost/asio/detail/impl/reactive_serial_port_service.ipp>
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#endif // defined(BOOST_ASIO_HEADER_ONLY)
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#endif // !defined(BOOST_ASIO_WINDOWS) && !defined(__CYGWIN__)
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#endif // defined(BOOST_ASIO_HAS_SERIAL_PORT)
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#endif // BOOST_ASIO_DETAIL_REACTIVE_SERIAL_PORT_SERVICE_HPP
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