94 lines
2.4 KiB
C++
94 lines
2.4 KiB
C++
//
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// descriptor_base.hpp
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// ~~~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2008 Christopher M. Kohlhoff (chris at kohlhoff dot com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#ifndef ASIO_POSIX_DESCRIPTOR_BASE_HPP
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#define ASIO_POSIX_DESCRIPTOR_BASE_HPP
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#if defined(_MSC_VER) && (_MSC_VER >= 1200)
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# pragma once
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#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
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#include "asio/detail/push_options.hpp"
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#include "asio/detail/push_options.hpp"
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#include <boost/config.hpp>
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#include <boost/detail/workaround.hpp>
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#include "asio/detail/pop_options.hpp"
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#include "asio/detail/io_control.hpp"
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#include "asio/detail/socket_option.hpp"
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namespace asio {
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namespace posix {
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/// The descriptor_base class is used as a base for the basic_stream_descriptor
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/// class template so that we have a common place to define the associated
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/// IO control commands.
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class descriptor_base
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{
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public:
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/// IO control command to set the blocking mode of the descriptor.
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/**
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* Implements the FIONBIO IO control command.
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*
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* @par Example
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* @code
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* asio::posix::stream_descriptor descriptor(io_service);
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* ...
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* asio::descriptor_base::non_blocking_io command(true);
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* descriptor.io_control(command);
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* @endcode
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*
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* @par Concepts:
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* IoControlCommand.
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*/
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#if defined(GENERATING_DOCUMENTATION)
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typedef implementation_defined non_blocking_io;
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#else
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typedef asio::detail::io_control::non_blocking_io non_blocking_io;
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#endif
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/// IO control command to get the amount of data that can be read without
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/// blocking.
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/**
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* Implements the FIONREAD IO control command.
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*
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* @par Example
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* @code
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* asio::posix::stream_descriptor descriptor(io_service);
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* ...
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* asio::descriptor_base::bytes_readable command(true);
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* descriptor.io_control(command);
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* std::size_t bytes_readable = command.get();
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* @endcode
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*
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* @par Concepts:
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* IoControlCommand.
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*/
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#if defined(GENERATING_DOCUMENTATION)
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typedef implementation_defined bytes_readable;
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#else
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typedef asio::detail::io_control::bytes_readable bytes_readable;
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#endif
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protected:
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/// Protected destructor to prevent deletion through this type.
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~descriptor_base()
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{
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}
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};
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} // namespace posix
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} // namespace asio
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#include "asio/detail/pop_options.hpp"
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#endif // ASIO_POSIX_DESCRIPTOR_BASE_HPP
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