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Diffstat (limited to 'boost/asio/detail/win_iocp_operation.hpp')
-rw-r--r-- | boost/asio/detail/win_iocp_operation.hpp | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/boost/asio/detail/win_iocp_operation.hpp b/boost/asio/detail/win_iocp_operation.hpp new file mode 100644 index 0000000000..67b546653e --- /dev/null +++ b/boost/asio/detail/win_iocp_operation.hpp @@ -0,0 +1,96 @@ +// +// detail/win_iocp_operation.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_WIN_IOCP_OPERATION_HPP +#define BOOST_ASIO_DETAIL_WIN_IOCP_OPERATION_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/handler_tracking.hpp> +#include <boost/asio/detail/op_queue.hpp> +#include <boost/asio/detail/socket_types.hpp> +#include <boost/asio/detail/win_iocp_io_service_fwd.hpp> +#include <boost/system/error_code.hpp> + +#include <boost/asio/detail/push_options.hpp> + +namespace boost { +namespace asio { +namespace detail { + +// Base class for all operations. A function pointer is used instead of virtual +// functions to avoid the associated overhead. +class win_iocp_operation + : public OVERLAPPED + BOOST_ASIO_ALSO_INHERIT_TRACKED_HANDLER +{ +public: + void complete(win_iocp_io_service& owner, + const boost::system::error_code& ec, + std::size_t bytes_transferred) + { + func_(&owner, this, ec, bytes_transferred); + } + + void destroy() + { + func_(0, this, boost::system::error_code(), 0); + } + +protected: + typedef void (*func_type)( + win_iocp_io_service*, win_iocp_operation*, + const boost::system::error_code&, std::size_t); + + win_iocp_operation(func_type func) + : next_(0), + func_(func) + { + reset(); + } + + // Prevents deletion through this type. + ~win_iocp_operation() + { + } + + void reset() + { + Internal = 0; + InternalHigh = 0; + Offset = 0; + OffsetHigh = 0; + hEvent = 0; + ready_ = 0; + } + +private: + friend class op_queue_access; + friend class win_iocp_io_service; + win_iocp_operation* next_; + func_type func_; + long ready_; +}; + +} // 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_OPERATION_HPP |