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diff --git a/3rdparty/asio/include/asio/detail/impl/reactive_serial_port_service.ipp b/3rdparty/asio/include/asio/detail/impl/reactive_serial_port_service.ipp
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+++ b/3rdparty/asio/include/asio/detail/impl/reactive_serial_port_service.ipp
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+//
+// detail/impl/reactive_serial_port_service.ipp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2021 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_IMPL_REACTIVE_SERIAL_PORT_SERVICE_IPP
+#define ASIO_DETAIL_IMPL_REACTIVE_SERIAL_PORT_SERVICE_IPP
+
+#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)
+#if !defined(ASIO_WINDOWS) && !defined(__CYGWIN__)
+
+#include <cstring>
+#include "asio/detail/reactive_serial_port_service.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+reactive_serial_port_service::reactive_serial_port_service(
+ execution_context& context)
+ : execution_context_service_base<reactive_serial_port_service>(context),
+ descriptor_service_(context)
+{
+}
+
+void reactive_serial_port_service::shutdown()
+{
+ descriptor_service_.shutdown();
+}
+
+asio::error_code reactive_serial_port_service::open(
+ reactive_serial_port_service::implementation_type& impl,
+ const std::string& device, asio::error_code& ec)
+{
+ if (is_open(impl))
+ {
+ ec = asio::error::already_open;
+ return ec;
+ }
+
+ descriptor_ops::state_type state = 0;
+ int fd = descriptor_ops::open(device.c_str(),
+ O_RDWR | O_NONBLOCK | O_NOCTTY, ec);
+ if (fd < 0)
+ return ec;
+
+ int s = descriptor_ops::fcntl(fd, F_GETFL, ec);
+ if (s >= 0)
+ s = descriptor_ops::fcntl(fd, F_SETFL, s | O_NONBLOCK, ec);
+ if (s < 0)
+ {
+ asio::error_code ignored_ec;
+ descriptor_ops::close(fd, state, ignored_ec);
+ return ec;
+ }
+
+ // Set up default serial port options.
+ termios ios;
+ s = ::tcgetattr(fd, &ios);
+ descriptor_ops::get_last_error(ec, s < 0);
+ if (s >= 0)
+ {
+#if defined(_BSD_SOURCE) || defined(_DEFAULT_SOURCE)
+ ::cfmakeraw(&ios);
+#else
+ ios.c_iflag &= ~(IGNBRK | BRKINT | PARMRK
+ | ISTRIP | INLCR | IGNCR | ICRNL | IXON);
+ ios.c_oflag &= ~OPOST;
+ ios.c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN);
+ ios.c_cflag &= ~(CSIZE | PARENB);
+ ios.c_cflag |= CS8;
+#endif
+ ios.c_iflag |= IGNPAR;
+ ios.c_cflag |= CREAD | CLOCAL;
+ s = ::tcsetattr(fd, TCSANOW, &ios);
+ descriptor_ops::get_last_error(ec, s < 0);
+ }
+ if (s < 0)
+ {
+ asio::error_code ignored_ec;
+ descriptor_ops::close(fd, state, ignored_ec);
+ return ec;
+ }
+
+ // We're done. Take ownership of the serial port descriptor.
+ if (descriptor_service_.assign(impl, fd, ec))
+ {
+ asio::error_code ignored_ec;
+ descriptor_ops::close(fd, state, ignored_ec);
+ }
+
+ return ec;
+}
+
+asio::error_code reactive_serial_port_service::do_set_option(
+ reactive_serial_port_service::implementation_type& impl,
+ reactive_serial_port_service::store_function_type store,
+ const void* option, asio::error_code& ec)
+{
+ termios ios;
+ int s = ::tcgetattr(descriptor_service_.native_handle(impl), &ios);
+ descriptor_ops::get_last_error(ec, s < 0);
+ if (s < 0)
+ return ec;
+
+ if (store(option, ios, ec))
+ return ec;
+
+ s = ::tcsetattr(descriptor_service_.native_handle(impl), TCSANOW, &ios);
+ descriptor_ops::get_last_error(ec, s < 0);
+ return ec;
+}
+
+asio::error_code reactive_serial_port_service::do_get_option(
+ const reactive_serial_port_service::implementation_type& impl,
+ reactive_serial_port_service::load_function_type load,
+ void* option, asio::error_code& ec) const
+{
+ termios ios;
+ int s = ::tcgetattr(descriptor_service_.native_handle(impl), &ios);
+ descriptor_ops::get_last_error(ec, s < 0);
+ if (s < 0)
+ return ec;
+
+ return load(option, ios, ec);
+}
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // !defined(ASIO_WINDOWS) && !defined(__CYGWIN__)
+#endif // defined(ASIO_HAS_SERIAL_PORT)
+
+#endif // ASIO_DETAIL_IMPL_REACTIVE_SERIAL_PORT_SERVICE_IPP