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//
// posix/descriptor_base.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2012 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_POSIX_DESCRIPTOR_BASE_HPP
#define BOOST_ASIO_POSIX_DESCRIPTOR_BASE_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_ASIO_HAS_POSIX_STREAM_DESCRIPTOR) \
|| defined(GENERATING_DOCUMENTATION)
#include <boost/asio/detail/io_control.hpp>
#include <boost/asio/detail/socket_option.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace posix {
/// The descriptor_base class is used as a base for the basic_stream_descriptor
/// class template so that we have a common place to define the associated
/// IO control commands.
class descriptor_base
{
public:
/// (Deprecated: Use non_blocking().) IO control command to set the blocking
/// mode of the descriptor.
/**
* Implements the FIONBIO IO control command.
*
* @par Example
* @code
* boost::asio::posix::stream_descriptor descriptor(io_service);
* ...
* boost::asio::descriptor_base::non_blocking_io command(true);
* descriptor.io_control(command);
* @endcode
*
* @par Concepts:
* IoControlCommand.
*/
#if defined(GENERATING_DOCUMENTATION)
typedef implementation_defined non_blocking_io;
#else
typedef boost::asio::detail::io_control::non_blocking_io non_blocking_io;
#endif
/// IO control command to get the amount of data that can be read without
/// blocking.
/**
* Implements the FIONREAD IO control command.
*
* @par Example
* @code
* boost::asio::posix::stream_descriptor descriptor(io_service);
* ...
* boost::asio::descriptor_base::bytes_readable command(true);
* descriptor.io_control(command);
* std::size_t bytes_readable = command.get();
* @endcode
*
* @par Concepts:
* IoControlCommand.
*/
#if defined(GENERATING_DOCUMENTATION)
typedef implementation_defined bytes_readable;
#else
typedef boost::asio::detail::io_control::bytes_readable bytes_readable;
#endif
protected:
/// Protected destructor to prevent deletion through this type.
~descriptor_base()
{
}
};
} // namespace posix
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // defined(BOOST_ASIO_HAS_POSIX_STREAM_DESCRIPTOR)
// || defined(GENERATING_DOCUMENTATION)
#endif // BOOST_ASIO_POSIX_DESCRIPTOR_BASE_HPP
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