Chris@16: //
Chris@16: // detail/io_control.hpp
Chris@16: // ~~~~~~~~~~~~~~~~~~~~~
Chris@16: //
Chris@101: // Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
Chris@16: //
Chris@16: // Distributed under the Boost Software License, Version 1.0. (See accompanying
Chris@16: // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: 
Chris@16: #ifndef BOOST_ASIO_DETAIL_IO_CONTROL_HPP
Chris@16: #define BOOST_ASIO_DETAIL_IO_CONTROL_HPP
Chris@16: 
Chris@16: #if defined(_MSC_VER) && (_MSC_VER >= 1200)
Chris@16: # pragma once
Chris@16: #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
Chris@16: 
Chris@16: #include <boost/asio/detail/config.hpp>
Chris@16: #include <cstddef>
Chris@16: #include <boost/asio/detail/socket_types.hpp>
Chris@16: 
Chris@16: #include <boost/asio/detail/push_options.hpp>
Chris@16: 
Chris@16: namespace boost {
Chris@16: namespace asio {
Chris@16: namespace detail {
Chris@16: namespace io_control {
Chris@16: 
Chris@16: // IO control command for non-blocking I/O.
Chris@16: class non_blocking_io
Chris@16: {
Chris@16: public:
Chris@16:   // Default constructor.
Chris@16:   non_blocking_io()
Chris@16:     : value_(0)
Chris@16:   {
Chris@16:   }
Chris@16: 
Chris@16:   // Construct with a specific command value.
Chris@16:   non_blocking_io(bool value)
Chris@16:     : value_(value ? 1 : 0)
Chris@16:   {
Chris@16:   }
Chris@16: 
Chris@16:   // Get the name of the IO control command.
Chris@16:   int name() const
Chris@16:   {
Chris@16:     return static_cast<int>(BOOST_ASIO_OS_DEF(FIONBIO));
Chris@16:   }
Chris@16: 
Chris@16:   // Set the value of the I/O control command.
Chris@16:   void set(bool value)
Chris@16:   {
Chris@16:     value_ = value ? 1 : 0;
Chris@16:   }
Chris@16: 
Chris@16:   // Get the current value of the I/O control command.
Chris@16:   bool get() const
Chris@16:   {
Chris@16:     return value_ != 0;
Chris@16:   }
Chris@16: 
Chris@16:   // Get the address of the command data.
Chris@16:   detail::ioctl_arg_type* data()
Chris@16:   {
Chris@16:     return &value_;
Chris@16:   }
Chris@16: 
Chris@16:   // Get the address of the command data.
Chris@16:   const detail::ioctl_arg_type* data() const
Chris@16:   {
Chris@16:     return &value_;
Chris@16:   }
Chris@16: 
Chris@16: private:
Chris@16:   detail::ioctl_arg_type value_;
Chris@16: };
Chris@16: 
Chris@16: // I/O control command for getting number of bytes available.
Chris@16: class bytes_readable
Chris@16: {
Chris@16: public:
Chris@16:   // Default constructor.
Chris@16:   bytes_readable()
Chris@16:     : value_(0)
Chris@16:   {
Chris@16:   }
Chris@16: 
Chris@16:   // Construct with a specific command value.
Chris@16:   bytes_readable(std::size_t value)
Chris@16:     : value_(static_cast<detail::ioctl_arg_type>(value))
Chris@16:   {
Chris@16:   }
Chris@16: 
Chris@16:   // Get the name of the IO control command.
Chris@16:   int name() const
Chris@16:   {
Chris@16:     return static_cast<int>(BOOST_ASIO_OS_DEF(FIONREAD));
Chris@16:   }
Chris@16: 
Chris@16:   // Set the value of the I/O control command.
Chris@16:   void set(std::size_t value)
Chris@16:   {
Chris@16:     value_ = static_cast<detail::ioctl_arg_type>(value);
Chris@16:   }
Chris@16: 
Chris@16:   // Get the current value of the I/O control command.
Chris@16:   std::size_t get() const
Chris@16:   {
Chris@16:     return static_cast<std::size_t>(value_);
Chris@16:   }
Chris@16: 
Chris@16:   // Get the address of the command data.
Chris@16:   detail::ioctl_arg_type* data()
Chris@16:   {
Chris@16:     return &value_;
Chris@16:   }
Chris@16: 
Chris@16:   // Get the address of the command data.
Chris@16:   const detail::ioctl_arg_type* data() const
Chris@16:   {
Chris@16:     return &value_;
Chris@16:   }
Chris@16: 
Chris@16: private:
Chris@16:   detail::ioctl_arg_type value_;
Chris@16: };
Chris@16: 
Chris@16: } // namespace io_control
Chris@16: } // namespace detail
Chris@16: } // namespace asio
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #include <boost/asio/detail/pop_options.hpp>
Chris@16: 
Chris@16: #endif // BOOST_ASIO_DETAIL_IO_CONTROL_HPP