diff options
author | Anas Nashif <anas.nashif@intel.com> | 2012-10-30 12:57:26 -0700 |
---|---|---|
committer | Anas Nashif <anas.nashif@intel.com> | 2012-10-30 12:57:26 -0700 |
commit | 1a78a62555be32868418fe52f8e330c9d0f95d5a (patch) | |
tree | d3765a80e7d3b9640ec2e930743630cd6b9fce2b /boost/asio/detail/impl/win_iocp_io_service.hpp | |
download | boost-1a78a62555be32868418fe52f8e330c9d0f95d5a.tar.gz boost-1a78a62555be32868418fe52f8e330c9d0f95d5a.tar.bz2 boost-1a78a62555be32868418fe52f8e330c9d0f95d5a.zip |
Imported Upstream version 1.49.0upstream/1.49.0
Diffstat (limited to 'boost/asio/detail/impl/win_iocp_io_service.hpp')
-rw-r--r-- | boost/asio/detail/impl/win_iocp_io_service.hpp | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/boost/asio/detail/impl/win_iocp_io_service.hpp b/boost/asio/detail/impl/win_iocp_io_service.hpp new file mode 100644 index 0000000000..871f6fa2e4 --- /dev/null +++ b/boost/asio/detail/impl/win_iocp_io_service.hpp @@ -0,0 +1,131 @@ +// +// detail/impl/win_iocp_io_service.hpp +// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// +// Copyright (c) 2003-2012 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_WIN_IOCP_IO_SERVICE_HPP +#define BOOST_ASIO_DETAIL_IMPL_WIN_IOCP_IO_SERVICE_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/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 win_iocp_io_service::dispatch(Handler handler) +{ + if (call_stack<win_iocp_io_service>::contains(this)) + { + fenced_block b(fenced_block::full); + boost_asio_handler_invoke_helpers::invoke(handler, handler); + } + else + { + // 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); + + BOOST_ASIO_HANDLER_CREATION((p.p, "io_service", this, "dispatch")); + + post_immediate_completion(p.p); + p.v = p.p = 0; + } +} + +template <typename Handler> +void win_iocp_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); + + BOOST_ASIO_HANDLER_CREATION((p.p, "io_service", this, "post")); + + post_immediate_completion(p.p); + p.v = p.p = 0; +} + +template <typename Time_Traits> +void win_iocp_io_service::add_timer_queue( + timer_queue<Time_Traits>& queue) +{ + do_add_timer_queue(queue); +} + +template <typename Time_Traits> +void win_iocp_io_service::remove_timer_queue( + timer_queue<Time_Traits>& queue) +{ + do_remove_timer_queue(queue); +} + +template <typename Time_Traits> +void win_iocp_io_service::schedule_timer(timer_queue<Time_Traits>& queue, + const typename Time_Traits::time_type& time, + typename timer_queue<Time_Traits>::per_timer_data& timer, wait_op* op) +{ + // If the service has been shut down we silently discard the timer. + if (::InterlockedExchangeAdd(&shutdown_, 0) != 0) + { + post_immediate_completion(op); + return; + } + + mutex::scoped_lock lock(dispatch_mutex_); + + bool earliest = queue.enqueue_timer(time, timer, op); + work_started(); + if (earliest) + update_timeout(); +} + +template <typename Time_Traits> +std::size_t win_iocp_io_service::cancel_timer(timer_queue<Time_Traits>& queue, + typename timer_queue<Time_Traits>::per_timer_data& timer, + std::size_t max_cancelled) +{ + // If the service has been shut down we silently ignore the cancellation. + if (::InterlockedExchangeAdd(&shutdown_, 0) != 0) + return 0; + + mutex::scoped_lock lock(dispatch_mutex_); + op_queue<win_iocp_operation> ops; + std::size_t n = queue.cancel_timer(timer, ops, max_cancelled); + post_deferred_completions(ops); + return n; +} + +} // namespace detail +} // namespace asio +} // namespace boost + +#include <boost/asio/detail/pop_options.hpp> + +#endif // defined(BOOST_ASIO_HAS_IOCP) + +#endif // BOOST_ASIO_DETAIL_IMPL_WIN_IOCP_IO_SERVICE_HPP |