Update boost to 1.71 and add asio

boost/asio/basic_socket_iostream.hpp

@@ -0,0 +1,409 @@
+//
+// basic_socket_iostream.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2019 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/config.hpp>
+
+#if !defined(BOOST_ASIO_NO_IOSTREAM)
+
+#include <istream>
+#include <ostream>
+#include <boost/asio/basic_socket_streambuf.hpp>
+
+#if !defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES)
+
+# include <boost/asio/detail/variadic_templates.hpp>
+
+// A macro that should expand to:
+//   template <typename T1, ..., typename Tn>
+//   explicit basic_socket_iostream(T1 x1, ..., Tn xn)
+//     : std::basic_iostream<char>(
+//         &this->detail::socket_iostream_base<
+//           Protocol, Clock, WaitTraits>::streambuf_)
+//   {
+//     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(n) \
+  template <BOOST_ASIO_VARIADIC_TPARAMS(n)> \
+  explicit basic_socket_iostream(BOOST_ASIO_VARIADIC_BYVAL_PARAMS(n)) \
+    : std::basic_iostream<char>( \
+        &this->detail::socket_iostream_base< \
+          Protocol, Clock, WaitTraits>::streambuf_) \
+  { \
+    this->setf(std::ios_base::unitbuf); \
+    if (rdbuf()->connect(BOOST_ASIO_VARIADIC_BYVAL_ARGS(n)) == 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(n) \
+  template <BOOST_ASIO_VARIADIC_TPARAMS(n)> \
+  void connect(BOOST_ASIO_VARIADIC_BYVAL_PARAMS(n)) \
+  { \
+    if (rdbuf()->connect(BOOST_ASIO_VARIADIC_BYVAL_ARGS(n)) == 0) \
+      this->setstate(std::ios_base::failbit); \
+  } \
+  /**/
+
+#endif // !defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES)
+
+#include <boost/asio/detail/push_options.hpp>
+
+namespace boost {
+namespace asio {
+namespace detail {
+
+// A separate base class is used to ensure that the streambuf is initialised
+// prior to the basic_socket_iostream's basic_iostream base class.
+template <typename Protocol, typename Clock, typename WaitTraits>
+class socket_iostream_base
+{
+protected:
+  socket_iostream_base()
+  {
+  }
+
+#if defined(BOOST_ASIO_HAS_MOVE)
+  socket_iostream_base(socket_iostream_base&& other)
+    : streambuf_(std::move(other.streambuf_))
+  {
+  }
+
+  socket_iostream_base(basic_stream_socket<Protocol> s)
+    : streambuf_(std::move(s))
+  {
+  }
+
+  socket_iostream_base& operator=(socket_iostream_base&& other)
+  {
+    streambuf_ = std::move(other.streambuf_);
+    return *this;
+  }
+#endif // defined(BOOST_ASIO_HAS_MOVE)
+
+  basic_socket_streambuf<Protocol, Clock, WaitTraits> streambuf_;
+};
+
+} // namespace detail
+
+#if !defined(BOOST_ASIO_BASIC_SOCKET_IOSTREAM_FWD_DECL)
+#define BOOST_ASIO_BASIC_SOCKET_IOSTREAM_FWD_DECL
+
+// Forward declaration with defaulted arguments.
+template <typename Protocol,
+#if defined(BOOST_ASIO_HAS_BOOST_DATE_TIME) \
+  && defined(BOOST_ASIO_USE_BOOST_DATE_TIME_FOR_SOCKET_IOSTREAM)
+    typename Clock = boost::posix_time::ptime,
+    typename WaitTraits = time_traits<Clock> >
+#else // defined(BOOST_ASIO_HAS_BOOST_DATE_TIME)
+      // && defined(BOOST_ASIO_USE_BOOST_DATE_TIME_FOR_SOCKET_IOSTREAM)
+    typename Clock = chrono::steady_clock,
+    typename WaitTraits = wait_traits<Clock> >
+#endif // defined(BOOST_ASIO_HAS_BOOST_DATE_TIME)
+       // && defined(BOOST_ASIO_USE_BOOST_DATE_TIME_FOR_SOCKET_IOSTREAM)
+class basic_socket_iostream;
+
+#endif // !defined(BOOST_ASIO_BASIC_SOCKET_IOSTREAM_FWD_DECL)
+
+/// Iostream interface for a socket.
+#if defined(GENERATING_DOCUMENTATION)
+template <typename Protocol,
+    typename Clock = chrono::steady_clock,
+    typename WaitTraits = wait_traits<Clock> >
+#else // defined(GENERATING_DOCUMENTATION)
+template <typename Protocol, typename Clock, typename WaitTraits>
+#endif // defined(GENERATING_DOCUMENTATION)
+class basic_socket_iostream
+  : private detail::socket_iostream_base<Protocol, Clock, WaitTraits>,
+    public std::basic_iostream<char>
+{
+private:
+  // These typedefs are intended keep this class's implementation independent
+  // of whether it's using Boost.DateClock, Boost.Chrono or std::chrono.
+#if defined(BOOST_ASIO_HAS_BOOST_DATE_TIME) \
+  && defined(BOOST_ASIO_USE_BOOST_DATE_TIME_FOR_SOCKET_IOSTREAM)
+  typedef WaitTraits traits_helper;
+#else // defined(BOOST_ASIO_HAS_BOOST_DATE_TIME)
+      // && defined(BOOST_ASIO_USE_BOOST_DATE_TIME_FOR_SOCKET_IOSTREAM)
+  typedef detail::chrono_time_traits<Clock, WaitTraits> traits_helper;
+#endif // defined(BOOST_ASIO_HAS_BOOST_DATE_TIME)
+       // && defined(BOOST_ASIO_USE_BOOST_DATE_TIME_FOR_SOCKET_IOSTREAM)
+
+public:
+  /// The protocol type.
+  typedef Protocol protocol_type;
+
+  /// The endpoint type.
+  typedef typename Protocol::endpoint endpoint_type;
+
+  /// The clock type.
+  typedef Clock clock_type;
+
+#if defined(GENERATING_DOCUMENTATION)
+  /// (Deprecated: Use time_point.) The time type.
+  typedef typename WaitTraits::time_type time_type;
+
+  /// The time type.
+  typedef typename WaitTraits::time_point time_point;
+
+  /// (Deprecated: Use duration.) The duration type.
+  typedef typename WaitTraits::duration_type duration_type;
+
+  /// The duration type.
+  typedef typename WaitTraits::duration duration;
+#else
+# if !defined(BOOST_ASIO_NO_DEPRECATED)
+  typedef typename traits_helper::time_type time_type;
+  typedef typename traits_helper::duration_type duration_type;
+# endif // !defined(BOOST_ASIO_NO_DEPRECATED)
+  typedef typename traits_helper::time_type time_point;
+  typedef typename traits_helper::duration_type duration;
+#endif
+
+  /// Construct a basic_socket_iostream without establishing a connection.
+  basic_socket_iostream()
+    : std::basic_iostream<char>(
+        &this->detail::socket_iostream_base<
+          Protocol, Clock, WaitTraits>::streambuf_)
+  {
+    this->setf(std::ios_base::unitbuf);
+  }
+
+#if defined(BOOST_ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION)
+  /// Construct a basic_socket_iostream from the supplied socket.
+  explicit basic_socket_iostream(basic_stream_socket<protocol_type> s)
+    : detail::socket_iostream_base<
+        Protocol, Clock, WaitTraits>(std::move(s)),
+      std::basic_iostream<char>(
+        &this->detail::socket_iostream_base<
+          Protocol, Clock, WaitTraits>::streambuf_)
+  {
+    this->setf(std::ios_base::unitbuf);
+  }
+
+#if defined(BOOST_ASIO_HAS_STD_IOSTREAM_MOVE) \
+  || defined(GENERATING_DOCUMENTATION)
+  /// Move-construct a basic_socket_iostream from another.
+  basic_socket_iostream(basic_socket_iostream&& other)
+    : detail::socket_iostream_base<
+        Protocol, Clock, WaitTraits>(std::move(other)),
+      std::basic_iostream<char>(std::move(other))
+  {
+    this->set_rdbuf(&this->detail::socket_iostream_base<
+          Protocol, Clock, WaitTraits>::streambuf_);
+  }
+
+  /// Move-assign a basic_socket_iostream from another.
+  basic_socket_iostream& operator=(basic_socket_iostream&& other)
+  {
+    std::basic_iostream<char>::operator=(std::move(other));
+    detail::socket_iostream_base<
+        Protocol, Clock, WaitTraits>::operator=(std::move(other));
+    return *this;
+  }
+#endif // defined(BOOST_ASIO_HAS_STD_IOSTREAM_MOVE)
+       //   || defined(GENERATING_DOCUMENTATION)
+#endif // defined(BOOST_ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION)
+
+#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);
+#elif defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES)
+  template <typename... T>
+  explicit basic_socket_iostream(T... x)
+    : std::basic_iostream<char>(
+        &this->detail::socket_iostream_base<
+          Protocol, Clock, WaitTraits>::streambuf_)
+  {
+    this->setf(std::ios_base::unitbuf);
+    if (rdbuf()->connect(x...) == 0)
+      this->setstate(std::ios_base::failbit);
+  }
+#else
+  BOOST_ASIO_VARIADIC_GENERATE(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);
+#elif defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES)
+  template <typename... T>
+  void connect(T... x)
+  {
+    if (rdbuf()->connect(x...) == 0)
+      this->setstate(std::ios_base::failbit);
+  }
+#else
+  BOOST_ASIO_VARIADIC_GENERATE(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, Clock, WaitTraits>* rdbuf() const
+  {
+    return const_cast<basic_socket_streambuf<Protocol, Clock, WaitTraits>*>(
+        &this->detail::socket_iostream_base<
+          Protocol, Clock, WaitTraits>::streambuf_);
+  }
+
+  /// Get a reference to the underlying socket.
+  basic_socket<Protocol>& socket()
+  {
+    return rdbuf()->socket();
+  }
+
+  /// Get the last error associated with the stream.
+  /**
+   * @return An \c error_code corresponding to the last error from the stream.
+   *
+   * @par Example
+   * To print the error associated with a failure to establish a connection:
+   * @code tcp::iostream s("www.boost.org", "http");
+   * if (!s)
+   * {
+   *   std::cout << "Error: " << s.error().message() << std::endl;
+   * } @endcode
+   */
+  const boost::system::error_code& error() const
+  {
+    return rdbuf()->error();
+  }
+
+#if !defined(BOOST_ASIO_NO_DEPRECATED)
+  /// (Deprecated: Use expiry().) Get the stream's expiry time as an absolute
+  /// time.
+  /**
+   * @return An absolute time value representing the stream's expiry time.
+   */
+  time_point expires_at() const
+  {
+    return rdbuf()->expires_at();
+  }
+#endif // !defined(BOOST_ASIO_NO_DEPRECATED)
+
+  /// Get the stream's expiry time as an absolute time.
+  /**
+   * @return An absolute time value representing the stream's expiry time.
+   */
+  time_point expiry() const
+  {
+    return rdbuf()->expiry();
+  }
+
+  /// Set the stream's expiry time as an absolute time.
+  /**
+   * This function sets the expiry time associated with the stream. Stream
+   * operations performed after this time (where the operations cannot be
+   * completed using the internal buffers) will fail with the error
+   * boost::asio::error::operation_aborted.
+   *
+   * @param expiry_time The expiry time to be used for the stream.
+   */
+  void expires_at(const time_point& expiry_time)
+  {
+    rdbuf()->expires_at(expiry_time);
+  }
+
+  /// Set the stream's expiry time relative to now.
+  /**
+   * This function sets the expiry time associated with the stream. Stream
+   * operations performed after this time (where the operations cannot be
+   * completed using the internal buffers) will fail with the error
+   * boost::asio::error::operation_aborted.
+   *
+   * @param expiry_time The expiry time to be used for the timer.
+   */
+  void expires_after(const duration& expiry_time)
+  {
+    rdbuf()->expires_after(expiry_time);
+  }
+
+#if !defined(BOOST_ASIO_NO_DEPRECATED)
+  /// (Deprecated: Use expiry().) Get the stream's expiry time relative to now.
+  /**
+   * @return A relative time value representing the stream's expiry time.
+   */
+  duration expires_from_now() const
+  {
+    return rdbuf()->expires_from_now();
+  }
+
+  /// (Deprecated: Use expires_after().) Set the stream's expiry time relative
+  /// to now.
+  /**
+   * This function sets the expiry time associated with the stream. Stream
+   * operations performed after this time (where the operations cannot be
+   * completed using the internal buffers) will fail with the error
+   * boost::asio::error::operation_aborted.
+   *
+   * @param expiry_time The expiry time to be used for the timer.
+   */
+  void expires_from_now(const duration& expiry_time)
+  {
+    rdbuf()->expires_from_now(expiry_time);
+  }
+#endif // !defined(BOOST_ASIO_NO_DEPRECATED)
+
+private:
+  // Disallow copying and assignment.
+  basic_socket_iostream(const basic_socket_iostream&) BOOST_ASIO_DELETED;
+  basic_socket_iostream& operator=(
+      const basic_socket_iostream&) BOOST_ASIO_DELETED;
+};
+
+} // namespace asio
+} // namespace boost
+
+#include <boost/asio/detail/pop_options.hpp>
+
+#if !defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES)
+# undef BOOST_ASIO_PRIVATE_CTR_DEF
+# undef BOOST_ASIO_PRIVATE_CONNECT_DEF
+#endif // !defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES)
+
+#endif // !defined(BOOST_ASIO_NO_IOSTREAM)
+
+#endif // BOOST_ASIO_BASIC_SOCKET_IOSTREAM_HPP