Imported existing code

libraries/include/boost/asio/basic_io_object.hpp

@@ -0,0 +1,99 @@
+//
+// basic_io_object.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_IO_OBJECT_HPP
+#define BOOST_ASIO_BASIC_IO_OBJECT_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/io_service.hpp>
+#include <boost/asio/detail/noncopyable.hpp>
+
+namespace boost {
+namespace asio {
+
+/// Base class for all I/O objects.
+template <typename IoObjectService>
+class basic_io_object
+  : private noncopyable
+{
+public:
+  /// The type of the service that will be used to provide I/O operations.
+  typedef IoObjectService service_type;
+
+  /// The underlying implementation type of I/O object.
+  typedef typename service_type::implementation_type implementation_type;
+
+  /// (Deprecated: use get_io_service().) Get the io_service associated with
+  /// the object.
+  /**
+   * This function may be used to obtain the io_service object that the I/O
+   * object uses to dispatch handlers for asynchronous operations.
+   *
+   * @return A reference to the io_service object that the I/O object will use
+   * to dispatch handlers. Ownership is not transferred to the caller.
+   */
+  boost::asio::io_service& io_service()
+  {
+    return service.get_io_service();
+  }
+
+  /// Get the io_service associated with the object.
+  /**
+   * This function may be used to obtain the io_service object that the I/O
+   * object uses to dispatch handlers for asynchronous operations.
+   *
+   * @return A reference to the io_service object that the I/O object will use
+   * to dispatch handlers. Ownership is not transferred to the caller.
+   */
+  boost::asio::io_service& get_io_service()
+  {
+    return service.get_io_service();
+  }
+
+protected:
+  /// Construct a basic_io_object.
+  /**
+   * Performs:
+   * @code service.construct(implementation); @endcode
+   */
+  explicit basic_io_object(boost::asio::io_service& io_service)
+    : service(boost::asio::use_service<IoObjectService>(io_service))
+  {
+    service.construct(implementation);
+  }
+
+  /// Protected destructor to prevent deletion through this type.
+  /**
+   * Performs:
+   * @code service.destroy(implementation); @endcode
+   */
+  ~basic_io_object()
+  {
+    service.destroy(implementation);
+  }
+
+  /// The service associated with the I/O object.
+  service_type& service;
+
+  /// The underlying implementation of the I/O object.
+  implementation_type implementation;
+};
+
+} // namespace asio
+} // namespace boost
+
+#include <boost/asio/detail/pop_options.hpp>
+
+#endif // BOOST_ASIO_BASIC_IO_OBJECT_HPP