94 lines
2.4 KiB
C++
94 lines
2.4 KiB
C++
|
//
|
||
|
|
// descriptor_base.hpp
|
||
|
|
// ~~~~~~~~~~~~~~~~~~~
|
||
|
|
//
|
||
|
|
// Copyright (c) 2003-2008 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_POSIX_DESCRIPTOR_BASE_HPP
|
||
|
|
#define ASIO_POSIX_DESCRIPTOR_BASE_HPP
|
||
|
|
|
||
|
|
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
|
||
|
|
# pragma once
|
||
|
|
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
|
||
|
|
|
||
|
|
#include "asio/detail/push_options.hpp"
|
||
|
|
|
||
|
|
#include "asio/detail/push_options.hpp"
|
||
|
|
#include <boost/config.hpp>
|
||
|
|
#include <boost/detail/workaround.hpp>
|
||
|
|
#include "asio/detail/pop_options.hpp"
|
||
|
|
|
||
|
|
#include "asio/detail/io_control.hpp"
|
||
|
|
#include "asio/detail/socket_option.hpp"
|
||
|
|
|
||
|
|
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:
|
||
|
|
/// IO control command to set the blocking mode of the descriptor.
|
||
|
|
/**
|
||
|
|
* Implements the FIONBIO IO control command.
|
||
|
|
*
|
||
|
|
* @par Example
|
||
|
|
* @code
|
||
|
|
* asio::posix::stream_descriptor descriptor(io_service);
|
||
|
|
* ...
|
||
|
|
* 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 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
|
||
|
|
* asio::posix::stream_descriptor descriptor(io_service);
|
||
|
|
* ...
|
||
|
|
* 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 asio::detail::io_control::bytes_readable bytes_readable;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
protected:
|
||
|
|
/// Protected destructor to prevent deletion through this type.
|
||
|
|
~descriptor_base()
|
||
|
|
{
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace posix
|
||
|
|
} // namespace asio
|
||
|
|
|
||
|
|
#include "asio/detail/pop_options.hpp"
|
||
|
|
|
||
|
|
#endif // ASIO_POSIX_DESCRIPTOR_BASE_HPP
|