Chris@16: //
Chris@16: // detail/impl/task_io_service.hpp
Chris@16: // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Chris@16: //
Chris@101: // Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
Chris@16: //
Chris@16: // Distributed under the Boost Software License, Version 1.0. (See accompanying
Chris@16: // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: 
Chris@16: #ifndef BOOST_ASIO_DETAIL_IMPL_TASK_IO_SERVICE_HPP
Chris@16: #define BOOST_ASIO_DETAIL_IMPL_TASK_IO_SERVICE_HPP
Chris@16: 
Chris@16: #if defined(_MSC_VER) && (_MSC_VER >= 1200)
Chris@16: # pragma once
Chris@16: #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
Chris@16: 
Chris@16: #include <boost/asio/detail/addressof.hpp>
Chris@16: #include <boost/asio/detail/completion_handler.hpp>
Chris@16: #include <boost/asio/detail/fenced_block.hpp>
Chris@16: #include <boost/asio/detail/handler_alloc_helpers.hpp>
Chris@16: #include <boost/asio/detail/handler_cont_helpers.hpp>
Chris@16: #include <boost/asio/detail/handler_invoke_helpers.hpp>
Chris@16: 
Chris@16: #include <boost/asio/detail/push_options.hpp>
Chris@16: 
Chris@16: namespace boost {
Chris@16: namespace asio {
Chris@16: namespace detail {
Chris@16: 
Chris@16: template <typename Handler>
Chris@16: void task_io_service::dispatch(Handler& handler)
Chris@16: {
Chris@16:   if (thread_call_stack::contains(this))
Chris@16:   {
Chris@16:     fenced_block b(fenced_block::full);
Chris@16:     boost_asio_handler_invoke_helpers::invoke(handler, handler);
Chris@16:   }
Chris@16:   else
Chris@16:   {
Chris@16:     // Allocate and construct an operation to wrap the handler.
Chris@16:     typedef completion_handler<Handler> op;
Chris@16:     typename op::ptr p = { boost::asio::detail::addressof(handler),
Chris@16:       boost_asio_handler_alloc_helpers::allocate(
Chris@16:         sizeof(op), handler), 0 };
Chris@16:     p.p = new (p.v) op(handler);
Chris@16: 
Chris@16:     BOOST_ASIO_HANDLER_CREATION((p.p, "io_service", this, "dispatch"));
Chris@16: 
Chris@16:     do_dispatch(p.p);
Chris@16:     p.v = p.p = 0;
Chris@16:   }
Chris@16: }
Chris@16: 
Chris@16: template <typename Handler>
Chris@16: void task_io_service::post(Handler& handler)
Chris@16: {
Chris@16:   bool is_continuation =
Chris@16:     boost_asio_handler_cont_helpers::is_continuation(handler);
Chris@16: 
Chris@16:   // Allocate and construct an operation to wrap the handler.
Chris@16:   typedef completion_handler<Handler> op;
Chris@16:   typename op::ptr p = { boost::asio::detail::addressof(handler),
Chris@16:     boost_asio_handler_alloc_helpers::allocate(
Chris@16:       sizeof(op), handler), 0 };
Chris@16:   p.p = new (p.v) op(handler);
Chris@16: 
Chris@16:   BOOST_ASIO_HANDLER_CREATION((p.p, "io_service", this, "post"));
Chris@16: 
Chris@16:   post_immediate_completion(p.p, is_continuation);
Chris@16:   p.v = p.p = 0;
Chris@16: }
Chris@16: 
Chris@16: } // namespace detail
Chris@16: } // namespace asio
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #include <boost/asio/detail/pop_options.hpp>
Chris@16: 
Chris@16: #endif // BOOST_ASIO_DETAIL_IMPL_TASK_IO_SERVICE_HPP