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Diffstat (limited to '3rdParty/Boost/src/boost/asio/detail/null_buffers_op.hpp')
-rw-r--r--3rdParty/Boost/src/boost/asio/detail/null_buffers_op.hpp79
1 files changed, 79 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/asio/detail/null_buffers_op.hpp b/3rdParty/Boost/src/boost/asio/detail/null_buffers_op.hpp
new file mode 100644
index 0000000..02160af
--- /dev/null
+++ b/3rdParty/Boost/src/boost/asio/detail/null_buffers_op.hpp
@@ -0,0 +1,79 @@
+//
+// null_buffers_op.hpp
+// ~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2010 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_NULL_BUFFERS_OP_HPP
+#define BOOST_ASIO_DETAIL_NULL_BUFFERS_OP_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/detail/fenced_block.hpp>
+#include <boost/asio/detail/handler_alloc_helpers.hpp>
+#include <boost/asio/detail/handler_invoke_helpers.hpp>
+#include <boost/asio/detail/reactor_op.hpp>
+
+namespace boost {
+namespace asio {
+namespace detail {
+
+template <typename Handler>
+class null_buffers_op : public reactor_op
+{
+public:
+ null_buffers_op(Handler handler)
+ : reactor_op(&null_buffers_op::do_perform, &null_buffers_op::do_complete),
+ handler_(handler)
+ {
+ }
+
+ static bool do_perform(reactor_op*)
+ {
+ return true;
+ }
+
+ static void do_complete(io_service_impl* owner, operation* base,
+ boost::system::error_code /*ec*/, std::size_t /*bytes_transferred*/)
+ {
+ // Take ownership of the handler object.
+ null_buffers_op* o(static_cast<null_buffers_op*>(base));
+ typedef handler_alloc_traits<Handler, null_buffers_op> alloc_traits;
+ handler_ptr<alloc_traits> ptr(o->handler_, o);
+
+ // Make the upcall if required.
+ if (owner)
+ {
+ // Make a copy of the handler so that the memory can be deallocated
+ // before the upcall is made. Even if we're not about to make an upcall,
+ // a sub-object of the handler may be the true owner of the memory
+ // associated with the handler. Consequently, a local copy of the handler
+ // is required to ensure that any owning sub-object remains valid until
+ // after we have deallocated the memory here.
+ detail::binder2<Handler, boost::system::error_code, std::size_t>
+ handler(o->handler_, o->ec_, o->bytes_transferred_);
+ ptr.reset();
+ boost::asio::detail::fenced_block b;
+ boost_asio_handler_invoke_helpers::invoke(handler, handler);
+ }
+ }
+
+private:
+ Handler handler_;
+};
+
+} // namespace detail
+} // namespace asio
+} // namespace boost
+
+#include <boost/asio/detail/pop_options.hpp>
+
+#endif // BOOST_ASIO_DETAIL_NULL_BUFFERS_OP_HPP