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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