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diff --git a/lib/asio/windows/basic_object_handle.hpp b/lib/asio/windows/basic_object_handle.hpp
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+//
+// windows/basic_object_handle.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+// Copyright (c) 2011 Boris Schaeling (boris@highscore.de)
+//
+// 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_WINDOWS_BASIC_OBJECT_HANDLE_HPP
+#define ASIO_WINDOWS_BASIC_OBJECT_HANDLE_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include "asio/detail/config.hpp"
+
+#if defined(ASIO_ENABLE_OLD_SERVICES)
+
+#if defined(ASIO_HAS_WINDOWS_OBJECT_HANDLE) \
+  || defined(GENERATING_DOCUMENTATION)
+
+#include "asio/detail/throw_error.hpp"
+#include "asio/error.hpp"
+#include "asio/windows/basic_handle.hpp"
+#include "asio/windows/object_handle_service.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace windows {
+
+/// Provides object-oriented handle functionality.
+/**
+ * The windows::basic_object_handle class template provides asynchronous and
+ * blocking object-oriented handle functionality.
+ *
+ * @par Thread Safety
+ * @e Distinct @e objects: Safe.@n
+ * @e Shared @e objects: Unsafe.
+ */
+template <typename ObjectHandleService = object_handle_service>
+class basic_object_handle
+  : public basic_handle<ObjectHandleService>
+{
+public:
+  /// The native representation of a handle.
+  typedef typename ObjectHandleService::native_handle_type native_handle_type;
+
+  /// Construct a basic_object_handle without opening it.
+  /**
+   * This constructor creates an object handle without opening it.
+   *
+   * @param io_context The io_context object that the object handle will use to
+   * dispatch handlers for any asynchronous operations performed on the handle.
+   */
+  explicit basic_object_handle(asio::io_context& io_context)
+    : basic_handle<ObjectHandleService>(io_context)
+  {
+  }
+
+  /// Construct a basic_object_handle on an existing native handle.
+  /**
+   * This constructor creates an object handle object to hold an existing native
+   * handle.
+   *
+   * @param io_context The io_context object that the object handle will use to
+   * dispatch handlers for any asynchronous operations performed on the handle.
+   *
+   * @param native_handle The new underlying handle implementation.
+   *
+   * @throws asio::system_error Thrown on failure.
+   */
+  basic_object_handle(asio::io_context& io_context,
+      const native_handle_type& native_handle)
+    : basic_handle<ObjectHandleService>(io_context, native_handle)
+  {
+  }
+
+#if defined(ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION)
+  /// Move-construct a basic_object_handle from another.
+  /**
+   * This constructor moves an object handle from one object to another.
+   *
+   * @param other The other basic_object_handle object from which the move will
+   * occur.
+   *
+   * @note Following the move, the moved-from object is in the same state as if
+   * constructed using the @c basic_object_handle(io_context&) constructor.
+   */
+  basic_object_handle(basic_object_handle&& other)
+    : basic_handle<ObjectHandleService>(
+        ASIO_MOVE_CAST(basic_object_handle)(other))
+  {
+  }
+
+  /// Move-assign a basic_object_handle from another.
+  /**
+   * This assignment operator moves an object handle from one object to another.
+   *
+   * @param other The other basic_object_handle object from which the move will
+   * occur.
+   *
+   * @note Following the move, the moved-from object is in the same state as if
+   * constructed using the @c basic_object_handle(io_context&) constructor.
+   */
+  basic_object_handle& operator=(basic_object_handle&& other)
+  {
+    basic_handle<ObjectHandleService>::operator=(
+        ASIO_MOVE_CAST(basic_object_handle)(other));
+    return *this;
+  }
+#endif // defined(ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION)
+
+  /// Perform a blocking wait on the object handle.
+  /**
+   * This function is used to wait for the object handle to be set to the
+   * signalled state. This function blocks and does not return until the object
+   * handle has been set to the signalled state.
+   *
+   * @throws asio::system_error Thrown on failure.
+   */
+  void wait()
+  {
+    asio::error_code ec;
+    this->get_service().wait(this->get_implementation(), ec);
+    asio::detail::throw_error(ec, "wait");
+  }
+
+  /// Perform a blocking wait on the object handle.
+  /**
+   * This function is used to wait for the object handle to be set to the
+   * signalled state. This function blocks and does not return until the object
+   * handle has been set to the signalled state.
+   *
+   * @param ec Set to indicate what error occurred, if any.
+   */
+  void wait(asio::error_code& ec)
+  {
+    this->get_service().wait(this->get_implementation(), ec);
+  }
+
+  /// Start an asynchronous wait on the object handle.
+  /**
+   * This function is be used to initiate an asynchronous wait against the
+   * object handle. It always returns immediately.
+   *
+   * @param handler The handler to be called when the object handle is set to
+   * the signalled state. Copies will be made of the handler as required. The
+   * function signature of the handler must be:
+   * @code void handler(
+   *   const asio::error_code& error // Result of operation.
+   * ); @endcode
+   * Regardless of whether the asynchronous operation completes immediately or
+   * not, the handler will not be invoked from within this function. Invocation
+   * of the handler will be performed in a manner equivalent to using
+   * asio::io_context::post().
+   */
+  template <typename WaitHandler>
+  ASIO_INITFN_RESULT_TYPE(WaitHandler,
+      void (asio::error_code))
+  async_wait(ASIO_MOVE_ARG(WaitHandler) handler)
+  {
+    return this->get_service().async_wait(this->get_implementation(),
+        ASIO_MOVE_CAST(WaitHandler)(handler));
+  }
+};
+
+} // namespace windows
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // defined(ASIO_HAS_WINDOWS_OBJECT_HANDLE)
+       //   || defined(GENERATING_DOCUMENTATION)
+
+#endif // defined(ASIO_ENABLE_OLD_SERVICES)
+
+#endif // ASIO_WINDOWS_BASIC_OBJECT_HANDLE_HPP