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//
// detail/io_control.hpp
// ~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2014 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 BOOST_ASIO_DETAIL_IO_CONTROL_HPP
#define BOOST_ASIO_DETAIL_IO_CONTROL_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#include <cstddef>
#include <boost/asio/detail/socket_types.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
namespace io_control {
// IO control command for non-blocking I/O.
class non_blocking_io
{
public:
// Default constructor.
non_blocking_io()
: value_(0)
{
}
// Construct with a specific command value.
non_blocking_io(bool value)
: value_(value ? 1 : 0)
{
}
// Get the name of the IO control command.
int name() const
{
return static_cast<int>(BOOST_ASIO_OS_DEF(FIONBIO));
}
// Set the value of the I/O control command.
void set(bool value)
{
value_ = value ? 1 : 0;
}
// Get the current value of the I/O control command.
bool get() const
{
return value_ != 0;
}
// Get the address of the command data.
detail::ioctl_arg_type* data()
{
return &value_;
}
// Get the address of the command data.
const detail::ioctl_arg_type* data() const
{
return &value_;
}
private:
detail::ioctl_arg_type value_;
};
// I/O control command for getting number of bytes available.
class bytes_readable
{
public:
// Default constructor.
bytes_readable()
: value_(0)
{
}
// Construct with a specific command value.
bytes_readable(std::size_t value)
: value_(static_cast<detail::ioctl_arg_type>(value))
{
}
// Get the name of the IO control command.
int name() const
{
return static_cast<int>(BOOST_ASIO_OS_DEF(FIONREAD));
}
// Set the value of the I/O control command.
void set(std::size_t value)
{
value_ = static_cast<detail::ioctl_arg_type>(value);
}
// Get the current value of the I/O control command.
std::size_t get() const
{
return static_cast<std::size_t>(value_);
}
// Get the address of the command data.
detail::ioctl_arg_type* data()
{
return &value_;
}
// Get the address of the command data.
const detail::ioctl_arg_type* data() const
{
return &value_;
}
private:
detail::ioctl_arg_type value_;
};
} // namespace io_control
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // BOOST_ASIO_DETAIL_IO_CONTROL_HPP
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