140 lines
3.7 KiB
C++
140 lines
3.7 KiB
C++
//
|
|
// detail/descriptor_ops.hpp
|
|
// ~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
//
|
|
// Copyright (c) 2003-2021 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;
|
|
|
|
inline void get_last_error(
|
|
asio::error_code& ec, bool is_error_condition)
|
|
{
|
|
if (!is_error_condition)
|
|
{
|
|
ec.assign(0, ec.category());
|
|
}
|
|
else
|
|
{
|
|
ec = asio::error_code(errno,
|
|
asio::error::get_system_category());
|
|
}
|
|
}
|
|
|
|
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 std::size_t sync_read1(int d, state_type state, void* data,
|
|
std::size_t size, 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 bool non_blocking_read1(int d, void* data, std::size_t size,
|
|
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 std::size_t sync_write1(int d, state_type state,
|
|
const void* data, std::size_t size, 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 bool non_blocking_write1(int d,
|
|
const void* data, std::size_t size,
|
|
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
|