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//
// detail/impl/task_io_service.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_IMPL_TASK_IO_SERVICE_HPP
#define BOOST_ASIO_DETAIL_IMPL_TASK_IO_SERVICE_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/call_stack.hpp>
#include <boost/asio/detail/completion_handler.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/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
template <typename Handler>
void task_io_service::dispatch(Handler handler)
{
if (call_stack<task_io_service>::contains(this))
{
boost::asio::detail::fenced_block b;
boost_asio_handler_invoke_helpers::invoke(handler, handler);
}
else
post(handler);
}
template <typename Handler>
void task_io_service::post(Handler handler)
{
// Allocate and construct an operation to wrap the handler.
typedef completion_handler<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);
post_immediate_completion(p.p);
p.v = p.p = 0;
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // BOOST_ASIO_DETAIL_IMPL_TASK_IO_SERVICE_HPP
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