| // |
| // detail/descriptor_ops.hpp |
| // ~~~~~~~~~~~~~~~~~~~~~~~~~ |
| // |
| // Copyright (c) 2003-2016 Christopher M. Kohlhoff (chris at kohlhoff dot 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_DESCRIPTOR_OPS_HPP |
| #define ASIO_DETAIL_DESCRIPTOR_OPS_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_WINDOWS) \ |
| && !defined(ASIO_WINDOWS_RUNTIME) \ |
| && !defined(__CYGWIN__) |
| |
| #include <cstddef> |
| #include "asio/error.hpp" |
| #include "asio/error_code.hpp" |
| #include "asio/detail/socket_types.hpp" |
| |
| #include "asio/detail/push_options.hpp" |
| |
| namespace asio { |
| namespace detail { |
| namespace descriptor_ops { |
| |
| // Descriptor state bits. |
| enum |
| { |
| // The user wants a non-blocking descriptor. |
| user_set_non_blocking = 1, |
| |
| // The descriptor has been set non-blocking. |
| internal_non_blocking = 2, |
| |
| // Helper "state" used to determine whether the descriptor is non-blocking. |
| non_blocking = user_set_non_blocking | internal_non_blocking, |
| |
| // The descriptor may have been dup()-ed. |
| possible_dup = 4 |
| }; |
| |
| typedef unsigned char state_type; |
| |
| template <typename ReturnType> |
| inline ReturnType error_wrapper(ReturnType return_value, |
| asio::error_code& ec) |
| { |
| ec = asio::error_code(errno, |
| asio::error::get_system_category()); |
| return return_value; |
| } |
| |
| ASIO_DECL int open(const char* path, int flags, |
| asio::error_code& ec); |
| |
| ASIO_DECL int close(int d, state_type& state, |
| asio::error_code& ec); |
| |
| ASIO_DECL bool set_user_non_blocking(int d, |
| state_type& state, bool value, asio::error_code& ec); |
| |
| ASIO_DECL bool set_internal_non_blocking(int d, |
| state_type& state, bool value, asio::error_code& ec); |
| |
| typedef iovec buf; |
| |
| ASIO_DECL std::size_t sync_read(int d, state_type state, buf* bufs, |
| std::size_t count, bool all_empty, asio::error_code& ec); |
| |
| ASIO_DECL bool non_blocking_read(int d, buf* bufs, std::size_t count, |
| asio::error_code& ec, std::size_t& bytes_transferred); |
| |
| ASIO_DECL std::size_t sync_write(int d, state_type state, |
| const buf* bufs, std::size_t count, bool all_empty, |
| asio::error_code& ec); |
| |
| ASIO_DECL bool non_blocking_write(int d, |
| const buf* bufs, std::size_t count, |
| asio::error_code& ec, std::size_t& bytes_transferred); |
| |
| ASIO_DECL int ioctl(int d, state_type& state, long cmd, |
| ioctl_arg_type* arg, asio::error_code& ec); |
| |
| ASIO_DECL int fcntl(int d, int cmd, asio::error_code& ec); |
| |
| ASIO_DECL int fcntl(int d, int cmd, |
| long arg, asio::error_code& ec); |
| |
| ASIO_DECL int poll_read(int d, |
| state_type state, asio::error_code& ec); |
| |
| ASIO_DECL int poll_write(int d, |
| state_type state, asio::error_code& ec); |
| |
| ASIO_DECL int poll_error(int d, |
| state_type state, asio::error_code& ec); |
| |
| } // namespace descriptor_ops |
| } // namespace detail |
| } // namespace asio |
| |
| #include "asio/detail/pop_options.hpp" |
| |
| #if defined(ASIO_HEADER_ONLY) |
| # include "asio/detail/impl/descriptor_ops.ipp" |
| #endif // defined(ASIO_HEADER_ONLY) |
| |
| #endif // !defined(ASIO_WINDOWS) |
| // && !defined(ASIO_WINDOWS_RUNTIME) |
| // && !defined(__CYGWIN__) |
| |
| #endif // ASIO_DETAIL_DESCRIPTOR_OPS_HPP |