// | |
// detail/win_iocp_operation.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_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/op_queue.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 | |
{ | |
public: | |
void complete(win_iocp_io_service& owner, | |
const boost::system::error_code& ec = boost::system::error_code(), | |
std::size_t bytes_transferred = 0) | |
{ | |
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*, 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 |