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路径: \\game3dprogramming\materials\GameFactory\GameFactoryDemo\references\boost_1_35_0\boost\asio\basic_socket_iostream.hpp
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//
// basic_socket_iostream.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 BOOST_ASIO_BASIC_SOCKET_IOSTREAM_HPP
#define BOOST_ASIO_BASIC_SOCKET_IOSTREAM_HPP

#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)

#include <boost/asio/detail/push_options.hpp>

#include <boost/asio/detail/push_options.hpp>
#include <boost/preprocessor/arithmetic/inc.hpp>
#include <boost/preprocessor/repetition/enum_binary_params.hpp>
#include <boost/preprocessor/repetition/enum_params.hpp>
#include <boost/preprocessor/repetition/repeat_from_to.hpp>
#include <boost/utility/base_from_member.hpp>
#include <boost/asio/detail/pop_options.hpp>

#include <boost/asio/basic_socket_streambuf.hpp>
#include <boost/asio/stream_socket_service.hpp>

#if !defined(BOOST_ASIO_SOCKET_IOSTREAM_MAX_ARITY)
#define BOOST_ASIO_SOCKET_IOSTREAM_MAX_ARITY 5
#endif // !defined(BOOST_ASIO_SOCKET_IOSTREAM_MAX_ARITY)

// A macro that should expand to:
//   template <typename T1, ..., typename Tn>
//   explicit basic_socket_iostream(T1 x1, ..., Tn xn)
//     : basic_iostream<char>(&this->boost::base_from_member<
//         basic_socket_streambuf<Protocol, StreamSocketService> >::member)
//   {
//     if (rdbuf()->connect(x1, ..., xn) == 0)
//       this->setstate(std::ios_base::failbit);
//   }
// This macro should only persist within this file.

#define BOOST_ASIO_PRIVATE_CTR_DEF(z, n, data) \
  template <BOOST_PP_ENUM_PARAMS(n, typename T)> \
  explicit basic_socket_iostream(BOOST_PP_ENUM_BINARY_PARAMS(n, T, x)) \
    : std::basic_iostream<char>(&this->boost::base_from_member< \
        basic_socket_streambuf<Protocol, StreamSocketService> >::member) \
  { \
    tie(this); \
    if (rdbuf()->connect(BOOST_PP_ENUM_PARAMS(n, x)) == 0) \
      this->setstate(std::ios_base::failbit); \
  } \
  /**/

// A macro that should expand to:
//   template <typename T1, ..., typename Tn>
//   void connect(T1 x1, ..., Tn xn)
//   {
//     if (rdbuf()->connect(x1, ..., xn) == 0)
//       this->setstate(std::ios_base::failbit);
//   }
// This macro should only persist within this file.

#define BOOST_ASIO_PRIVATE_CONNECT_DEF(z, n, data) \
  template <BOOST_PP_ENUM_PARAMS(n, typename T)> \
  void connect(BOOST_PP_ENUM_BINARY_PARAMS(n, T, x)) \
  { \
    if (rdbuf()->connect(BOOST_PP_ENUM_PARAMS(n, x)) == 0) \
      this->setstate(std::ios_base::failbit); \
  } \
  /**/

namespace boost {
namespace asio {

/// Iostream interface for a socket.
template <typename Protocol,
    typename StreamSocketService = stream_socket_service<Protocol> >
class basic_socket_iostream
  : public boost::base_from_member<
      basic_socket_streambuf<Protocol, StreamSocketService> >,
    public std::basic_iostream<char>
{
public:
  /// Construct a basic_socket_iostream without establishing a connection.
  basic_socket_iostream()
    : std::basic_iostream<char>(&this->boost::base_from_member<
        basic_socket_streambuf<Protocol, StreamSocketService> >::member)
  {
    tie(this);
  }

#if defined(GENERATING_DOCUMENTATION)
  /// Establish a connection to an endpoint corresponding to a resolver query.
  /**
   * This constructor automatically establishes a connection based on the
   * supplied resolver query parameters. The arguments are used to construct
   * a resolver query object.
   */
  template <typename T1, ..., typename TN>
  explicit basic_socket_iostream(T1 t1, ..., TN tn);
#else
  BOOST_PP_REPEAT_FROM_TO(
      1, BOOST_PP_INC(BOOST_ASIO_SOCKET_IOSTREAM_MAX_ARITY),
      BOOST_ASIO_PRIVATE_CTR_DEF, _ )
#endif

#if defined(GENERATING_DOCUMENTATION)
  /// Establish a connection to an endpoint corresponding to a resolver query.
  /**
   * This function automatically establishes a connection based on the supplied
   * resolver query parameters. The arguments are used to construct a resolver
   * query object.
   */
  template <typename T1, ..., typename TN>
  void connect(T1 t1, ..., TN tn);
#else
  BOOST_PP_REPEAT_FROM_TO(
      1, BOOST_PP_INC(BOOST_ASIO_SOCKET_IOSTREAM_MAX_ARITY),
      BOOST_ASIO_PRIVATE_CONNECT_DEF, _ )
#endif

  /// Close the connection.
  void close()
  {
    if (rdbuf()->close() == 0)
      this->setstate(std::ios_base::failbit);
  }

  /// Return a pointer to the underlying streambuf.
  basic_socket_streambuf<Protocol, StreamSocketService>* rdbuf() const
  {
    return const_cast<basic_socket_streambuf<Protocol, StreamSocketService>*>(
        &this->boost::base_from_member<
          basic_socket_streambuf<Protocol, StreamSocketService> >::member);
  }
};

} // namespace asio
} // namespace boost

#undef BOOST_ASIO_PRIVATE_CTR_DEF
#undef BOOST_ASIO_PRIVATE_CONNECT_DEF

#include <boost/asio/detail/pop_options.hpp>

#endif // BOOST_ASIO_BASIC_SOCKET_IOSTREAM_HPP
basic_socket_iostream.hpp
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