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124 lines
3.6 KiB
C++
124 lines
3.6 KiB
C++
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//
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// detail/descriptor_ops.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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//
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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_DESCRIPTOR_OPS_HPP
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#define BOOST_ASIO_DETAIL_DESCRIPTOR_OPS_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_WINDOWS) \
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&& !defined(BOOST_ASIO_WINDOWS_RUNTIME) \
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&& !defined(__CYGWIN__)
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#include <cstddef>
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#include <boost/asio/error.hpp>
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#include <boost/system/error_code.hpp>
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#include <boost/asio/detail/socket_types.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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namespace descriptor_ops {
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// Descriptor state bits.
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enum
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{
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// The user wants a non-blocking descriptor.
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user_set_non_blocking = 1,
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// The descriptor has been set non-blocking.
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internal_non_blocking = 2,
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// Helper "state" used to determine whether the descriptor is non-blocking.
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non_blocking = user_set_non_blocking | internal_non_blocking,
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// The descriptor may have been dup()-ed.
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possible_dup = 4
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};
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typedef unsigned char state_type;
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template <typename ReturnType>
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inline ReturnType error_wrapper(ReturnType return_value,
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boost::system::error_code& ec)
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{
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ec = boost::system::error_code(errno,
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boost::asio::error::get_system_category());
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return return_value;
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}
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BOOST_ASIO_DECL int open(const char* path, int flags,
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boost::system::error_code& ec);
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BOOST_ASIO_DECL int close(int d, state_type& state,
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boost::system::error_code& ec);
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BOOST_ASIO_DECL bool set_user_non_blocking(int d,
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state_type& state, bool value, boost::system::error_code& ec);
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BOOST_ASIO_DECL bool set_internal_non_blocking(int d,
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state_type& state, bool value, boost::system::error_code& ec);
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typedef iovec buf;
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BOOST_ASIO_DECL std::size_t sync_read(int d, state_type state, buf* bufs,
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std::size_t count, bool all_empty, boost::system::error_code& ec);
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BOOST_ASIO_DECL bool non_blocking_read(int d, buf* bufs, std::size_t count,
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boost::system::error_code& ec, std::size_t& bytes_transferred);
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BOOST_ASIO_DECL std::size_t sync_write(int d, state_type state,
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const buf* bufs, std::size_t count, bool all_empty,
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boost::system::error_code& ec);
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BOOST_ASIO_DECL bool non_blocking_write(int d,
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const buf* bufs, std::size_t count,
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boost::system::error_code& ec, std::size_t& bytes_transferred);
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BOOST_ASIO_DECL int ioctl(int d, state_type& state, long cmd,
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ioctl_arg_type* arg, boost::system::error_code& ec);
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BOOST_ASIO_DECL int fcntl(int d, int cmd, boost::system::error_code& ec);
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BOOST_ASIO_DECL int fcntl(int d, int cmd,
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long arg, boost::system::error_code& ec);
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BOOST_ASIO_DECL int poll_read(int d,
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state_type state, boost::system::error_code& ec);
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BOOST_ASIO_DECL int poll_write(int d,
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state_type state, boost::system::error_code& ec);
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BOOST_ASIO_DECL int poll_error(int d,
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state_type state, boost::system::error_code& ec);
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} // namespace descriptor_ops
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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/descriptor_ops.ipp>
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#endif // defined(BOOST_ASIO_HEADER_ONLY)
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#endif // !defined(BOOST_ASIO_WINDOWS)
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// && !defined(BOOST_ASIO_WINDOWS_RUNTIME)
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// && !defined(__CYGWIN__)
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#endif // BOOST_ASIO_DETAIL_DESCRIPTOR_OPS_HPP
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