Added boost header

test/external/boost/asio/detail/win_iocp_overlapped_ptr.hpp

@@ -0,0 +1,146 @@
+//
+// detail/win_iocp_overlapped_ptr.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2011 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_DETAIL_WIN_IOCP_OVERLAPPED_PTR_HPP
+#define BOOST_ASIO_DETAIL_WIN_IOCP_OVERLAPPED_PTR_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_HAS_IOCP)
+
+#include <boost/utility/addressof.hpp>
+#include <boost/asio/io_service.hpp>
+#include <boost/asio/detail/handler_alloc_helpers.hpp>
+#include <boost/asio/detail/noncopyable.hpp>
+#include <boost/asio/detail/win_iocp_overlapped_op.hpp>
+#include <boost/asio/detail/win_iocp_io_service.hpp>
+
+#include <boost/asio/detail/push_options.hpp>
+
+namespace boost {
+namespace asio {
+namespace detail {
+
+// Wraps a handler to create an OVERLAPPED object for use with overlapped I/O.
+class win_iocp_overlapped_ptr
+  : private noncopyable
+{
+public:
+  // Construct an empty win_iocp_overlapped_ptr.
+  win_iocp_overlapped_ptr()
+    : ptr_(0),
+      iocp_service_(0)
+  {
+  }
+
+  // Construct an win_iocp_overlapped_ptr to contain the specified handler.
+  template <typename Handler>
+  explicit win_iocp_overlapped_ptr(
+      boost::asio::io_service& io_service, BOOST_ASIO_MOVE_ARG(Handler) handler)
+    : ptr_(0),
+      iocp_service_(0)
+  {
+    this->reset(io_service, BOOST_ASIO_MOVE_CAST(Handler)(handler));
+  }
+
+  // Destructor automatically frees the OVERLAPPED object unless released.
+  ~win_iocp_overlapped_ptr()
+  {
+    reset();
+  }
+
+  // Reset to empty.
+  void reset()
+  {
+    if (ptr_)
+    {
+      ptr_->destroy();
+      ptr_ = 0;
+      iocp_service_->work_finished();
+      iocp_service_ = 0;
+    }
+  }
+
+  // Reset to contain the specified handler, freeing any current OVERLAPPED
+  // object.
+  template <typename Handler>
+  void reset(boost::asio::io_service& io_service, Handler handler)
+  {
+    typedef win_iocp_overlapped_op<Handler> op;
+    typename op::ptr p = { boost::addressof(handler),
+      boost_asio_handler_alloc_helpers::allocate(
+        sizeof(op), handler), 0 };
+    p.p = new (p.v) op(handler);
+
+    BOOST_ASIO_HANDLER_CREATION((p.p, "io_service",
+          &io_service.impl_, "overlapped"));
+
+    io_service.impl_.work_started();
+    reset();
+    ptr_ = p.p;
+    p.v = p.p = 0;
+    iocp_service_ = &io_service.impl_;
+  }
+
+  // Get the contained OVERLAPPED object.
+  OVERLAPPED* get()
+  {
+    return ptr_;
+  }
+
+  // Get the contained OVERLAPPED object.
+  const OVERLAPPED* get() const
+  {
+    return ptr_;
+  }
+
+  // Release ownership of the OVERLAPPED object.
+  OVERLAPPED* release()
+  {
+    if (ptr_)
+      iocp_service_->on_pending(ptr_);
+
+    OVERLAPPED* tmp = ptr_;
+    ptr_ = 0;
+    iocp_service_ = 0;
+    return tmp;
+  }
+
+  // Post completion notification for overlapped operation. Releases ownership.
+  void complete(const boost::system::error_code& ec,
+      std::size_t bytes_transferred)
+  {
+    if (ptr_)
+    {
+      iocp_service_->on_completion(ptr_, ec,
+          static_cast<DWORD>(bytes_transferred));
+      ptr_ = 0;
+      iocp_service_ = 0;
+    }
+  }
+
+private:
+  win_iocp_operation* ptr_;
+  win_iocp_io_service* iocp_service_;
+};
+
+} // namespace detail
+} // namespace asio
+} // namespace boost
+
+#include <boost/asio/detail/pop_options.hpp>
+
+#endif // defined(BOOST_ASIO_HAS_IOCP)
+
+#endif // BOOST_ASIO_DETAIL_WIN_IOCP_OVERLAPPED_PTR_HPP